BLACK HILLS HOLDING CORP
S-4, EX-4, 2000-12-22
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                                                                 Exhibit 4.2

                             BLACK HILLS CORPORATION


                                       TO


                            THE CHASE MANHATTAN BANK,

                                   As Trustee



                           --------------------------


                         RESTATED AND AMENDED INDENTURE

                                 OF MORTGAGE AND

                                  DEED OF TRUST


                          Dated as of September 1, 1999


                         ------------------------------






<PAGE>

                                TABLE OF CONTENTS


<TABLE>
<CAPTION>
                                                                                                               Page
<S>                                                                                                               <C>
RECITALS..........................................................................................................1

ARTICLE ONE
         DEFINITIONS AND OTHER PROVISIONS OF GENERAL APPLICATION..................................................8
         Section 1.01.Definitions.................................................................................8
         Section 1.02.  Opinion and Certificate Requirements.....................................................18
         Section 1.03.  Documentary Requirements.................................................................18
         Section 1.04.  Documentary Requirements--More Than One Certificate
                           Permissible...........................................................................19
         Section 1.05.  Redemption Requirements--Cash Deposit....................................................19

ARTICLE TWO
         THE BONDS...............................................................................................20
         Section 2.01.  Bond Form................................................................................20
         Section 2.02.  Issuance of Bonds--Limitations...........................................................23
         Section 2.03.  Registered Bonds.........................................................................23
         Section 2.04.  Naming Series of Bonds...................................................................23
         Section 2.05.  New Bonds--Optional Provisions...........................................................23
         Section 2.06.  Denominations and Interest Rates.........................................................24
         Section 2.07.  Exchange of Bonds........................................................................25
         Section 2.08.  Execution of Bonds.......................................................................25
         Section 2.09.  Authentication of Bonds..................................................................25
         Section 2.10.  Temporary Bonds and Exchange.............................................................26
         Section 2.11.  Registrar and Registration...............................................................26
         Section 2.12.  Governmental Charges.....................................................................27
         Section 2.13.  Bonds Without Certificates Allowed.......................................................27
         Section 2.14.  Replacement of Bonds.....................................................................27

ARTICLE THREE
         EXISTING BONDS..........................................................................................28
         Section 3.01.  Series Y Bonds...........................................................................28
         Section 3.02.  Series Z Bonds...........................................................................30
         Section 3.03.Series AA Bonds............................................................................33
         Section 3.04.  Series AB Bonds..........................................................................34
         Section 3.05.Series AC Bonds............................................................................35
         Section 3.06.Series AD Bonds............................................................................36
         Section 3.07.Indemnity of Trustee.......................................................................37
         Section 3.08.  Registrar of Existing Bonds..............................................................37
         Section 3.09.Exchange of Bonds..........................................................................37
         Section 3.10.  Compliance with Covenants................................................................37

ARTICLE FOUR
         AUTHENTICATION AND DELIVERY OF BONDSUPON THE BASIS OF PROPERTY ADDITIONS................................38
         Section 4.01.  Property Additions and Certifiable Net Earnings Defined..................................38
         Section 4.02.  Additional Bonds Under Property Additions................................................40
         Section 4.03.  Bonds Limited by 70 Percent of Net Bondable Additions....................................48
         Section 4.04.  Additional Bonding Authority Based on Property Additions
                           Certified Prior.......................................................................48

ARTICLE FIVE
         AUTHENTICATION AND DELIVERY OF BONDSUPON DEPOSIT OF CASH WITH TRUSTEE...................................48
         Section 5.01.  Additional Bonds Authorized by Deposit of Cash...........................................48
         Section 5.02.  Amount of Bonds..........................................................................50
         Section 5.03.  Terms of Withdrawal of Cash..............................................................50

ARTICLE SIX
         AUTHENTICATION AND DELIVERY OF BONDSUPON RETIREMENT OF BONDS PREVIOUSLY ISSUED HEREUNDER................50
         Section 6.01.  Additional Bonds Authorized by Retired Bonds.............................................50
         Section 6.02.  Amount of Bonds Equal to Retired Bonds...................................................53
         Section 6.03.  Canceled Bonds...........................................................................53

ARTICLE SEVEN
         RELEASE OF MORTGAGED PROPERTY...........................................................................53
         Section 7.01.  Company's Permitted Activities...........................................................53
         Section 7.02.  Conditions of Release of Property........................................................55
         Section 7.03.  Release of Property Upon Eminent Domain..................................................61
         Section 7.04.  Release under Authority of Trustee or Bondholder.........................................62
         Section 7.05.  In Event of Receiver or Trustee Possessing Trust Estate..................................62
         Section 7.06.  Purchasers in Good Faith.................................................................62
         Section 7.07.  Application of Cash......................................................................63

ARTICLE EIGHT
         APPLICATION AND WITHDRAWAL OF TRUST MONEYS..............................................................63
         Section 8.01.  General Provisions--Withdrawing Trust Moneys.............................................63
         Section 8.02.  Trust Moneys Withdrawn Against Gross Bondable Additions..................................64
         Section 8.03.  Trust Moneys Withdrawn Against Net Bondable Additions....................................65
         Section 8.04.  Trust Moneys Withdrawn Against Bonds.....................................................67
         Section 8.05.  Trust Moneys Withdrawn to Redeem Bonds...................................................68
         Section 8.06.  Trust Moneys Withdrawn for Repairs.......................................................69
         Section 8.07.  Trust Moneys Withdrawn for Taxes.........................................................70
         Section 8.08.  Trust Moneys Held More Than Two Years Applied to Redeem
                           Bonds and Application of Trust Moneys in Event of Eminent
                           Domain or Purchase by a Public Authority of the Entire
                           Trust Estate..........................................................................72
                           ------------
         Section 8.09.  Possession After Default.................................................................73
                        ------------------------
         Section 8.10.  Cancellation of Bonds Delivered..........................................................73
                        -------------------------------
         Section 8.11.  Moneys Received by Trustee and Payment of Interest.......................................74
                        --------------------------------------------------
         Section 8.12.  Investment of Trust Funds................................................................74
                        --------------------------

ARTICLE NINE
         PARTICULAR COVENANTS OF THE COMPANY.....................................................................74
         Section 9.01.  Payment of Principal and Interest........................................................74
         Section 9.02.  Company Prohibited from Extending Time for Payment.......................................75
         Section 9.03.  Warrants and Defends Title...............................................................75
         Section 9.04.  Payment of Taxes and Prohibition on Liens................................................75
         Section 9.05.  Repair and Maintain......................................................................76
         Section 9.06.  Prior Lien Obligations...................................................................77
         Section 9.07.  Use of Property Released from Prior Lien.................................................77
         Section 9.08.  Recording and Filing and Annual Opinion and Certificate..................................78
         Section 9.09.  Insurance Requirements and Annual Certificate............................................80
         Section 9.10.  Record Keeping...........................................................................80
         Section 9.11.  Accounting and Audits....................................................................80
         Section 9.12.  Maintain Existence.......................................................................81
         Section 9.13.  Advances by Trustee......................................................................81
         Section 9.14.  Dividend Restrictions....................................................................81
         Section 9.15.  Governmental Reporting Requirements......................................................81
         Section 9.16.  List of Bondholders......................................................................82
         Section 9.17.  Preservation of List of Bondholders......................................................82
         Section 9.18.  Annual Compliance Certificate............................................................84

ARTICLE TEN
         REDEMPTION OF BONDS.....................................................................................84
         Section 10.01.  Redeemable Bonds........................................................................84
         Section 10.02.  Redemption Rights of Existing Bonds.....................................................84
         Section 10.03.  Notice and Selection of Bonds...........................................................84
         Section 10.04.  Method of Effecting Redemption..........................................................86
         Section 10.05.  Cancellation of Redeemed Bonds..........................................................87

ARTICLE ELEVEN
         REMEDIES OF TRUSTEES AND BONDHOLDERS....................................................................87
         Section 11.01.  Events of Default.......................................................................87
         Section 11.02.  Possession of Trust Estate by Trustee...................................................89
         Section 11.03.  Additional Power of Trustee in Event of Default.........................................91
         Section 11.04.  Bondholders'Right to Direct Action......................................................91
         Section 11.05.  Notice of Sale by Trustee...............................................................92
         Section 11.06.  Adjournment of Sale.....................................................................92
         Section 11.07.  Conveyance to Purchasers................................................................92
         Section 11.08.  Sale as an Entirety Unless Holders Otherwise Direct.....................................93
         Section 11.09.  Accrual of Interest Upon Sale...........................................................93
         Section 11.10.  Application of Proceeds of Sale.........................................................93
         Section 11.11.  Use of Bonds to Pay for Property........................................................94
         Section 11.12.  Other Rights of Trustee in Event of Default.............................................94
         Section 11.13.  Recovery of Judgment....................................................................94
         Section 11.14.  Restrictions on Rights of Bondholders and Unconditional
                           Obligation of Company.................................................................95
                           ---------------------
         Section 11.15.  Remedies Cumulative.....................................................................96
                         -------------------
         Section 11.16.  No Waiver for Delay.....................................................................97
                         -------------------
         Section 11.17.  Trustee's Power to Institute Legal Proceedings..........................................97
                         ----------------------------------------------
         Section 11.18.  Failure of Remedy Restores Rights.......................................................97
                         ---------------------------------
         Section 11.19.  Holders of Majority May Direct Proceedings..............................................98
                         ------------------------------------------
         Section 11.20.  Company's Waiver of Certain Rights......................................................98
                         ----------------------------------
         Section 11.21.  No Recourse Against Stockholders, Directors and Officers................................98
                         --------------------------------------------------------
         Section 11.22.  Obligor Not Entitled to Distribution....................................................99
                         ------------------------------------

ARTICLE TWELVE
         EVIDENCE OF RIGHTS OF BONDHOLDERS.......................................................................99
         Section 12.01.  Bondholder Concurrent Writings..........................................................99
         Section 12.02.  Proof of Execution by Bondholder........................................................99
         Section 12.03.  Register Proves Ownership of Bond.......................................................99

ARTICLE THIRTEEN
         MERGER, CONSOLIDATION, TRANSFER OR LEASE...............................................................100
         Section 13.01.  Conditions of Merger...................................................................100
         Section 13.02.  Conditions of Successor to Succeed to Rights of Company................................101

ARTICLE FOURTEEN
         CONCERNING THE TRUSTEE.................................................................................102
         Section 14.01.  Qualification of Trustee...............................................................102
         Section 14.02.  Trustee's Duties and Obligations.......................................................102
         Section 14.03.  Removal, Resignation and Discharge of Trustee..........................................106
         Section 14.04.  Special Account in Case of Default.....................................................111
         Section 14.05.  Trustee's Annual Report to Bondholders.................................................115
         Section 14.06.  Removal and Resignation of Trustee.....................................................117
         Section 14.07.  Disqualification and Appointment of Successor Trustee..................................117
         Section 14.08.  Merger of Trustee......................................................................118
         Section 14.09.  Appointment of Co-Trustee..............................................................119
         Section 14.10.  Notice.................................................................................119

ARTICLE FIFTEEN
         DEFEASANCE.............................................................................................120
         Section 15.01.  Conditions to Discharge Restated Indenture.............................................120
         Section 15.02.  Discharge of Restated Indenture........................................................121

ARTICLE SIXTEEN
         SUPPLEMENTAL INDENTURES................................................................................121
         Section 16.01.  Modification of Restated Indenture Through Supplemental
                           Indentures...........................................................................121
         Section 16.02.  Authority of Trustee...................................................................123
         Section 16.03.  Trustee's Discretion...................................................................123

ARTICLE SEVENTEEN
         MEETING OF BONDHOLDERS.................................................................................123
         Section 17.01.  Modification of Restated Indenture by Bondholders......................................123
         Sections 17.02.  Calling Meetings of Bondholders and Notice............................................123
         Section 17.03.  Qualifications of Bondholders to Vote..................................................124
         Section 17.04.  Proxy Voting Allowed...................................................................125
         Section 17.05.  Conduct of Meeting.....................................................................126
         Section 17.06.  Quorum for Meeting.....................................................................126
         Section 17.07.  Vote Required..........................................................................127
         Section 17.08.  Records of Meetings and Notices........................................................127
         Section 17.09.  Actions Noted on Bonds.................................................................128
         Section 17.10.  Nullification of Article Seventeen.....................................................129
         Section 17.11.  Written Consent in Lieu of Meeting.....................................................129
         Section 17.12.  Trustee's Expenses.....................................................................129

ARTICLE EIGHTEEN
         MISCELLANEOUS PROVISIONS...............................................................................129
         Section 18.01.  Binding on Successors and Assigns......................................................129
         Section 18.02.  Rights Limited to Company, Bondholders and Trustee.....................................130
         Section 18.03.  Trust Indenture Act Controls...........................................................130
         Section 18.04.  Headings. .............................................................................130
         Section 18.05.  Complete Agreement.....................................................................130
         Section 18.06.  Receipt of Copy........................................................................130
         Section 18.07.  Executed in Counterparts...............................................................130

</TABLE>

<PAGE>



                                                  TABLE OF EXHIBITS

<TABLE>
<CAPTION>
                                                                                                               Page
<S>      <C>                                                                                                   <C>
A        Legal Description of Real Property....................................................................A-1

B        Series Y Bond Form....................................................................................B-1

C        Series Z Bond Form....................................................................................C-1

D        Series AA Bond Form...................................................................................D-1

E        Series AB Bond Form...................................................................................E-1

F        Series AC Bond Form...................................................................................F-1

G        Series AD Bond Form...................................................................................G-1

</TABLE>

<PAGE>



                   RESTATED AND AMENDED INDENTURE OF MORTGAGE
                                AND DEED OF TRUST


         RESTATED AND AMENDED INDENTURE OF MORTGAGE AND DEED OF TRUST,  dated as
of  September 1, 1999  (hereinafter  referred to as the  "Restated  Indenture"),
between BLACK HILLS CORPORATION, a corporation duly organized and existing under
the laws of the State of South Dakota  (formerly  known as Black Hills Power and
Light Company) (hereinafter called the "Company"), and THE CHASE MANHATTAN BANK,
a New York corporation organized and existing under the laws of the State of New
York (hereinafter called the Trustee).

                                    RECITALS

         In order to secure an authorized  issue of First  Mortgage Bonds of the
Company,  the Company has  executed  and  delivered an Indenture of Mortgage and
Deed of Trust to Central Hanover Bank and Trust Company  (subsequently  known as
The Hanover Bank) as Trustee,  dated September 1, 1941,  hereinafter referred to
as the "Original Indenture."

         The Chase  Manhattan  Bank is the  successor  Trustee  as the result of
mergers of The Hanover Bank followed by a series of subsequent  mergers  leading
to the Trustee as the current successor.

         Subsequent to the execution of the Original Indenture,  the Company has
executed  various   supplemental   indentures  providing  for  the  issuance  of
additional  series  of  Bonds  and  supplementing  and  modifying  the  Original
Indenture  which,  as supplemented  and amended by said thirty-one  supplemental
indentures, is referred to herein as the "Indenture."

         Pursuant to the provisions of the Indenture,  First Mortgage Bonds have
been duly issued and are presently outstanding and secured by the Indenture, and
continue to be secured by this Restated Indenture as follows:

                                                             Principal Amount
                       Series                                  Outstanding

         Series Y, 9.49%, due June 15, 2018                    $ 5,420,000
         Series Z, 9.35%, due May 29, 2021                     $35,000,000
         Series AA, 9.00%, due September 1, 2003               $ 4,254,946
         Series AB, 8.30%, due September 1, 2024               $45,000,000
         Series AC, 8.06%, due February 1, 2010                $30,000,000
         Series AD, 6.50%, due July 15, 2002                   $15,000,000



<PAGE>


         Because  of  the  extensive  amendments  contained  in  the  thirty-one
supplemental  indentures and the  complexities in reading and  interpreting  the
Indenture resulting therefrom,  the Company desires to cause the Indenture to be
restated and amended to constitute one instrument  which  completely  states the
agreement of the parties hereto as of the date hereof.

         Subject  to  the  conditions  therein  contained,  subparagraph  (k) of
Section  17.01 as set forth in Section  1.23 of the Twenty  Eighth  Supplemental
Indenture, dated as of March 15, 1995 as a supplement to the Original Indenture,
authorizes  the  Trustee  to  enter  into a  restatement  and  amendment  of the
Indenture without consent of the Bondholders.

         The Company, in the exercise of the powers and authority conferred upon
and reserved to it under and by virtue of the provisions of the  Indenture,  and
pursuant  to  resolutions  of its  Board of  Directors,  has duly  resolved  and
determined to make, execute,  and deliver to the Trustee this Restated Indenture
in the form  hereof for the  purpose of  restating  the  Indenture  without  any
interruption of the Lien of the Indenture which now continues under the Restated
Indenture.

         NOW, THEREFORE,  to secure the payment of the principal of, premium, if
any, and interest, if any, on all Bonds at any time issued and Outstanding under
this Restated  Indenture when payable in accordance with the provisions  thereof
and hereof,  and to secure the performance and observance by the Company of, and
its compliance  with,  the covenants and conditions of this Restated  Indenture,
and in  consideration  of the  premises and of One Dollar paid to the Company by
the Trustee,  the Company hereby grants,  bargains,  sells,  releases,  conveys,
assigns,  transfers,  mortgages,  pledges,  sets forth and confirms to The Chase
Manhattan  Bank,  as  Trustee,  and grants and assigns to the Trustee a security
interest in the following described  property,  referred to herein as the "Trust
Estate":


                              GRANTING CLAUSE FIRST
                                 (Real Property)

                  All right,  title and  interest  of the Company in and to real
         property wherever  situated,  including without limitation (a) all land
         and interests in land  referenced in the Original  Indenture and in the
         thirty-one Supplemental Indentures thereto, which land and interests in
         land are described in Exhibit A to this Restated Indenture, except land
         and  interests in land which have been  specifically  released from the
         Lien  of the  Indenture  from  time  to  time;  (b)  all  other  lands,
         easements,  servitudes and other rights and interests in or relating to
         real  property  or  the  occupancy  or use of the  same;  and  (c)  all
         buildings, offices, warehouses and other structures and improvements of
         whatever kind and nature situated upon the real property.


<PAGE>


                             GRANTING CLAUSE SECOND
                               (Generating Plants)

               All electric  generating plants and stations in which the Company
          has an  ownership  interest  at the  date  of the  execution  of  this
          Restated Indenture,  including all powerhouses,  structures and works,
          and the land on which the same are  situated,  and all other lands and
          easements, water rights, rights-of-way,  permits, privileges,  towers,
          poles,  wires,  machinery,  equipment,  appliances,  appurtenances and
          sites forming a part of such plants and  stations,  or any of them, or
          occupied, enjoyed or used in connection therewith.


                              GRANTING CLAUSE THIRD
                              (Transmission System)

               All electric transmission lines of the Company owned by it at the
          date of the execution  hereof,  including  towers,  poles, pole lines,
          wires,  switch racks,  switch boards,  insulators and other appliances
          and equipment,  and all other  property of the Company  forming a part
          thereof  or  pertaining  thereto,  and  all  service  lines  extending
          therefrom,   together  with  all  of  the  Company's   real  property,
          rights-of-way,  and  easements  over or relating to the  construction,
          maintenance or operation  thereof,  through,  over, under, or upon any
          private property.


                             GRANTING CLAUSE FOURTH
                                  (Substations)

               All the substations  and switching  stations of the Company owned
          by  it  at  the  date  of  the  execution  hereof  for   transforming,
          distributing or otherwise  regulating electric current,  together with
          all of  the  Company's  buildings,  transformers,  wires,  insulators,
          appliances,  equipment,  and all other property,  real or personal, of
          the Company,  forming a part of or pertaining to or used,  occupied or
          enjoyed  in  connection  with any of such  substations  and  switching
          stations.

<PAGE>

                                       GRANTING CLAUSE FIFTH
                                       (Distribution System)


               All electric  distribution  systems of the Company owned by it at
          the date of the execution hereof, including substations, transformers,
          switchboards,  towers, poles, wires,  insulators,  subways,  manholes,
          cables,  appliances,  equipment and all other property of the Company,
          real or  personal,  forming  a part  of or  appertaining  to or  used,
          occupied or enjoyed in connection with such distribution  systems,  or
          any of them,  together with the Company's  rights-of-way and easements
          relating to the construction, maintenance or operation thereof.


                                       GRANTING CLAUSE SIXTH
                                     (After-Acquired Property)

               All property (other than Excepted  Property and property released
          from the Lien of this Restated  Indenture  under Article Seven) of the
          kind and nature  described in Granting Clauses First,  Second,  Third,
          Fourth and Fifth which may be hereafter  acquired by the  Company,  it
          being the intention of the Company that all such property  acquired by
          the  Company  after the date of the  execution  and  delivery  of this
          Restated  Indenture shall be as fully embraced within and subjected to
          the Lien  hereof as if such  property  were owned by the Company as of
          the date of the execution and delivery of this Restated Indenture.


                                      GRANTING CLAUSE SEVENTH
                           (Property Company May Cause to be Mortgaged)

               Also any and all  property,  real,  personal or mixed,  including
          Excepted Property,  that may, from time to time hereafter, by delivery
          or by  writing  of any kind  for the  purposes  hereof  be in any wise
          subjected  to the lien  hereof or be  expressly  conveyed,  mortgaged,
          assigned,  transferred,  deposited  or  pledged  by the  Company or by
          anyone in its  behalf or with its  consent,  to and with the  Trustee,
          which is hereby authorized to receive the same at any and all times as
          and  for  additional  security  and  also,  when  and  as  hereinafter
          provided,  as substituted security hereunder,  to the extent permitted
          by law. Such conveyance,  mortgage,  assignment,  transfer, deposit or
          pledge or other  creation  of lien by the  Company or by anyone in its
          behalf  or  with  its  consent  of or  upon  any  property  as and for
          additional   security  may  be  made  subject  to  any   reservations,
          limitations,  conditions and provisions which shall be set forth in an
          instrument  or  agreement  in writing  executed  by the Company or the
          person or corporation conveying, assigning, mortgaging,  transferring,
          depositing or pledging the same or by the Trustee, respecting the use,
          management  and  disposition  of the property so  conveyed,  assigned,
          mortgaged, transferred, deposited or pledged, or the proceeds thereof.




<PAGE>


                             GRANTING CLAUSE EIGHTH
                               (Excepted Property)

               There is, however,  expressly excepted and excluded from the Lien
          of this Restated  Indenture the  following  described  property of the
          Company, herein sometimes referred to as "Excepted Property":

                    A.  all  cash  on  hand,  in  banks  or in  other  financial
               institutions with which the Company maintains deposits, shares of
               stock,  bonds,   notes,   evidences  of  indebtedness  and  other
               securities not hereafter paid or delivered to, deposited with, or
               held by, the Trustee hereunder or required so to be;

                    B. all contracts,  leases and other agreements of whatsoever
               kind and nature  (including pole attachment  agreements and joint
               pole  agreements),   contract  rights,  bills,  notes  and  other
               instruments,   accounts  receivable,  claims,  credits,  demands,
               judgments,  choses in action,  patents, patent licenses and other
               patent rights, patent applications,  trade names,  trademarks and
               other general intangibles;

                    C. all permits,  licenses,  franchises  (including municipal
               franchises  and other  rights  to use  public  ways)  and  rights
               (however  characterized)  granted by any governmental entity with
               respect to air,  water or other types of  pollution  or pollution
               credits;

                    D. all motor vehicles,  automobiles,  buses,  trucks,  truck
               cranes,   tractors,   trailers  and  similar  vehicles,   movable
               equipment,  all rolling  stock,  railcars,  containers  and other
               railroad equipment,  all vessels,  boats, barges and other marine
               equipment, all airplanes,  airplane engines and flight equipment,
               and all components,  spare parts, accessories,  supplies and fuel
               used or to be used in connection with any of the foregoing;

                    E. all goods, wares, merchandise, equipment, spare parts and
               tools held for sale or lease in the  ordinary  course of business
               or for  use  or  consumption  in,  or in the  operation  of,  any
               properties  of, or for the  benefit of, the  Company,  or held in
               advance of use  thereof  for  maintenance,  replacement  or fixed
               capital  purposes;  all fuel,  materials  and  supplies and other
               personal  property  which  are  consumable   (otherwise  than  by
               ordinary  wear and  tear) in their  use in the  Electric  Utility
               Business;

<PAGE>

                    F. all office furniture and office equipment; all satellites
               and other  equipment  and  materials  used or to be used in outer
               space;  all  business  machines;  all  communications   equipment
               (including  telephone  equipment);  all computer  equipment;  all
               record  production,  storage  and  retrieval  equipment;  and all
               components,  spare  parts,  accessories,   programs  (other  than
               computer  software) and supplies used or to be used in connection
               with any of the foregoing;

                    G. all crops,  timber,  sand, gravel,  rocks, earth, natural
               gas, coal, ore, uranium,  gas, oil and other minerals  harvested,
               mined or extracted or otherwise separated from the land, or lying
               or being upon,  within or under any  properties  of the  Company,
               including  the Trust  Estate,  all  mineral  rights,  leases  and
               royalties  and income  therefrom,  and all rights to explore  for
               minerals,  and gas or oil  wells  or any  lease  or  real  estate
               acquired for the purpose of obtaining gas or oil rights;

                    H. all electric energy, steam, water, ice and other products
               generated,  manufactured,  produced, provided or purchased by the
               Company for sale,  transmission  or distribution or used or to be
               used by the Company;

                  I.       all leasehold interests and leasehold improvements;

                  J.       all property, real, personal and mixed, which is:

                         (i)  not  specifically  subjected  or  required  to  be
                    subjected  to the  Lien of this  Restated  Indenture  by any
                    express provision hereof; and

                         (ii)  not  used or to be used in the  Electric  Utility
                    Business,  or  in  connection  with  the  operation  of  any
                    property specifically  subjected or required to be subjected
                    to the  Lien  of  this  Restated  Indenture  by the  express
                    provisions hereof;

                  K.       the Company's franchise to be a corporation; and

                  L.       all books and records;

                    it being understood that the Company may, however,  pursuant
                    to the Seventh  Granting  Clause of the Restated  Indenture,
                    subject to the Lien of this Restated  Indenture any Excepted
                    Property,  whereupon  the same  shall  cease to be  Excepted
                    Property.

                              GRANTING CLAUSE NINTH



<PAGE>


         TOGETHER  WITH  ALL  AND  SINGULAR  the  tenements,  hereditaments  and
appurtenances  belonging or in anywise  appertaining to the Trust Estate, or any
part thereof, with the reversion or reversions, remainder and remainders, rents,
issues, income and profits thereof, and all the right, title, interest and claim
whatsoever,  at law or in  equity,  which  the  Company  now has or which it may
hereafter acquire in and to the Trust Estate and every part and parcel thereof.

         TO HAVE AND TO HOLD the Trust  Estate and all and  singular  the lands,
properties,  estates,  rights,  privileges and  appurtenances  hereby mortgaged,
conveyed,  pledged,  or assigned,  or intended so to be,  together  with all the
appurtenances  thereunto  appertaining,  unto the Trustee and its successors and
assigns forever;

         Subject, however, to Permitted Encumbrances;

         BUT IN  TRUST,  NEVERTHELESS,  for the  equal  and  proportionate  use,
benefit,  security and  protection of those who from time to time shall hold the
Bonds  authenticated  and  delivered  hereunder  and duly issued by the Company,
without  any  discrimination,  preference  or  priority of any one Bond over any
other by reason of priority in the time of issue, sale or negotiation thereof or
otherwise,  except  as  provided  in  Section  9.02,  so that,  subject  to said
provisions,  each and all of said  Bonds  shall  have the same  right,  lien and
privilege  under this  Restated  Indenture and shall be equally  secured  hereby
(except as any sinking,  amortization,  improvement,  renewal or other analogous
fund,  established in accordance with the provisions of this Restated Indenture,
may afford  additional  security  for the Bonds of any  particular  series,  and
except any covenant of the Company  with respect to the refund or  reimbursement
of taxes,  assessments or other governmental charges on account of the ownership
of the Bonds or the income derived therefrom, for which the holders of the Bonds
shall look only to the  Company  and not to the  property  hereby  mortgaged  or
pledged),  and shall have the same proportionate interest and share in the Trust
Estate,  with the same effect as if all of the Bonds had been  issued,  sold and
negotiated  simultaneously on the date of the delivery hereof;  and in trust for
enforcing  payment of the  principal of the Bonds and of the  interest  thereon,
according  to the tenor,  purport  and effect of the Bonds and of this  Restated
Indenture, and for enforcing the terms,  provisions,  covenants and stipulations
herein and in the Bonds set forth;

         UPON CONDITION that, if the Company, its successors and assigns,  shall
pay or cause to be paid the  principal of and  interest and premium,  if any, on
said Bonds or shall  provide as  permitted  hereby  for the  payment  thereof by
depositing  with the Trustee the entire  amount due or to become due thereon for
principal,  interest and premium,  if any, and if the Company  shall also pay or
cause to be paid all other sums  payable  hereunder  by it,  and shall  strictly
observe and perform all of the terms, provisions and conditions of this Restated
Indenture, then this Restated Indenture and the estate and rights hereby granted
shall cease, determine and be void, otherwise to be and remain in full force and
effect.



<PAGE>


         IT IS HEREBY FURTHER COVENANTED, DECLARED AND AGREED by and between the
parties  hereto  that all such  Bonds  are to be  authenticated,  delivered  and
issued,  and that all property subject or to become subject hereto is to be held
upon the uses,  trusts and  purposes  hereinafter  set forth and  subject to the
covenants,  agreements,  and conditions  hereinafter set forth, and the Company,
for itself,  its successors and assigns,  does hereby  covenant and agree to and
with the Trustee and its successors in such trusts, for the benefit of those who
shall hold said Bonds or any of them, as follows:


                                   ARTICLE ONE

             DEFINITIONS AND OTHER PROVISIONS OF GENERAL APPLICATION

         Section 1.01.  Definitions.

         For all  purposes  of this  Restated  Indenture,  except  as  otherwise
specifically provided or unless the context otherwise requires:

                    (a)  The terms  defined in this  Article  have the  meanings
                         assigned to them in this Article and include the plural
                         as well as the singular;

                    (b)  All terms used herein  (and which are not  specifically
                         defined   herein)   which  are  defined  in  the  Trust
                         Indenture Act, either directly or by reference  herein,
                         have the meanings assigned to them therein;

                    (c)  All terms used herein  (and which are not  specifically
                         defined  herein)  which  are  defined  in  the  Uniform
                         Commercial   Code  (as  in  effect   in  the   relevant
                         jurisdiction)   have  the  meanings  assigned  to  them
                         therein;

                    (d)  The word "or" is not exclusive;

                    (e)  All accounting terms not otherwise  defined herein have
                         the  meanings  assigned  to  them  in  accordance  with
                         Generally Accepted Accounting Principles; and

                    (f)  All  references  herein to  "Articles,"  "Sections" and
                         other  subdivisions are to the corresponding  Articles,
                         Sections  or  other   subdivisions   of  this  Restated
                         Indenture. The words "herein," "hereof" and "hereunder"
                         and  other  words  of  similar  import  refer  to  this
                         Restated Indenture as a whole and not to any particular
                         Article, Section or other subdivision.

         "Accountant" is any individual who is a certified or public  accountant
         or any firm or copartnership of certified or public accountants.



<PAGE>


         "Additions Credit." If and whenever any Net Bondable Additions or Gross
         Bondable  Additions are certified or made a part of an  application  to
         the Trustee for any purpose under this Restated  Indenture,  any amount
         is in excess of that required for such purpose, the excess amount shall
         constitute an Additions  Credit and may be carried  forward and used as
         Property Additions for additional certifications and applications under
         this Restated Indenture.  The Company shall have the right, at any time
         and from time to time,  to establish an Additions  Credit by delivering
         to the Trustee the  Certificates,  Opinions and Other Instruments which
         would be required to be delivered to the Trustee  under Section 4.02 B,
         Clauses (1) through (11),  (13) and (14) and Sections 4.02,  Paragraphs
         C, D and E of this Restated Indenture.

         "Affiliate,"  when  used with  reference  to the  Company  or any other
         person who is liable on the Bonds, is an individual,  firm, corporation
         or other legal entity which directly or indirectly, through one or more
         intermediaries,  controls,  or is  controlled  by,  or is under  common
         control with,  the Company or such other person.  The term "control" is
         the possession, directly or indirectly, of the power to direct or cause
         the direction of the management and policies of a firm,  corporation or
         other legal entity, whether through the ownership of voting securities,
         by contract or otherwise.

         "Amount" of any  Property  Additions  is the Cost to the Company or the
         Fair Value to the Company at the time of  determination  (whichever  is
         less) of such Property Additions.

          "Appraiser" is any corporation,  qualified individual or copartnership
          who is engaged in the business of appraising property.

         "Authorized  Newspaper,"  when  used  with  reference  to a  particular
         municipality shall mean a newspaper printed in the English language and
         regularly  published and of general circulation in such municipality at
         least  once on each day,  other  than  holidays  and  Sundays,  in each
         calendar week.

          "Board of  Directors  of the Company" is the Board of Directors of the
          Company or an Executive Committee thereof.

         "Bonded Cash" is and includes:

                           (1) Cash deposited with the Trustee under Section
                  5.01;

                           (2) Cash  (including  the proceeds of purchase  money
                  obligations)  deposited or required to be  deposited  with the
                  Trustee to obtain the release of, or representing the proceeds
                  of the taking by eminent domain or of the purchase by a public
                  authority or of any other  disposition of, or of insurance on,
                  any Bonded Property;

                           (3) Cash  repaid to the  Trustee  pursuant to Section
                  8.07 in respect  of  refunds  of taxes to the extent  that the
                  amount  withdrawn  by the Company in respect of  reimbursement
                  for such taxes shall have been Bonded Cash;



<PAGE>


                           (4)  Cash  held  by  the  Trustee  in  any   sinking,
                  amortization, improvement, renewal or other analogous fund, if
                  any,  which may  hereafter  be created as  provided in Section
                  2.05, but only to the extent that the  supplemental  indenture
                  or other instrument creating such fund provides that such cash
                  shall be Bonded Cash; and

                           (5)  Cash  held by the  Trustee  to pay or  redeem
                  any indebtedness secured by a Prior Lien.

          "Bonded Property" is and includes:

                           (1) All property (other than Excepted Property) owned
                  by the  Company  on or  prior  to  November  1,  1941,  except
                  materials and supplies;  provided,  however,  that salvaged or
                  reclaimed property which shall have been a part of any present
                  or future Bonded Property  retired by the Company,  shall from
                  and after the date of its retirement, be deemed to be Unbonded
                  Property for all purposes hereof;

                           (2) All Property  Additions  which have been made the
                  basis  for the  authentication  and  delivery  of Bonds or the
                  release of any Bonded  Property from the Lien of the Indenture
                  and this  Restated  Indenture or the  withdrawal of any Bonded
                  Cash (or Unbonded Cash, if withdrawn  under Section 8.03) from
                  the Trustee, but not including Additions Credit;

                           (3) All purchase money obligations and all securities
                  delivered or required to be  delivered  to the Trustee  either
                  (i) to obtain the release of any Bonded Property from the Lien
                  of the  Indenture  and the  Restated  Indenture or (ii) as the
                  proceeds  of  Bonded  Property  taken  by  eminent  domain  or
                  purchased by any governmental  body or agency upon exercise of
                  any right which it may have to purchase the same;

                           (4) All property  acquired by the Company to replace,
                  or in lieu of, Bonded Property sold or disposed of pursuant to
                  Paragraph  (b) of  Section  7.01,  or to  repair,  replace  or
                  restore  insured Bonded Property which shall have been damaged
                  or destroyed,  but the proceeds of that insurance  which shall
                  not have been  required to be paid to the Trustee  pursuant to
                  the provisions of Section 9.09 shall not be Bonded Property;

                           (5) All Property  Additions  certified to the Trustee
                  to meet maintenance  requirements under the Indenture prior to
                  the adoption of the Restated Indenture; and

                           (6) All Property  Additions  previously  certified to
                  the  Trustee  to  meet  the   requirements   of  any  sinking,
                  amortization, improvement, renewal or other analogous fund, if
                  any, which may hereafter be created as provided in Paragraph D
                  of Section  2.05,  but only if, and to the  extent  that,  the
                  supplemental  indenture or other instrument creating such fund
                  shall preclude the certification of such Property Additions as
                  a basis for the  authentication  and  delivery  of Bonds under
                  this Article.


<PAGE>


         "Bondholder"  and  "holder"  shall  include  the  plural as well as the
         singular number, and vice versa, unless otherwise expressly  indicated,
         and  shall  include  both the  bearer  of a Bond not  registered  as to
         principal  and  the  registered  owner  of  a  Bond  registered  as  to
         principal.

          "Bonds" are any bonds  authenticated and delivered under this Restated
          Indenture, including the Existing Bonds.

         "Certifiable Net Earnings" are defined at Section 4.01, Paragraph B.

         "Certificate  of the  Company" is a written  certificate  signed by its
         Chairman  of  the  Board,  President  or a  Vice-President  and  by the
         Treasurer or an Assistant Treasurer of the Company,  wherein the person
         signing  shall certify to the  correctness  of the  statements  therein
         contained.

         "Company" is Black Hills Corporation,  a South Dakota corporation,  and
         any  successor  corporation  which shall  become  such  pursuant to the
         applicable  provisions  of  this  Restated  Indenture,  and  thereafter
         "Company" shall mean such successor.

          "Corporation" or "corporation" also includes  voluntary  associations,
          joint stock companies and other similar organizations.


<PAGE>


         "Cost" to the Company of Property  Additions shall be taken to mean the
         sum of (1) the amount of cash expenditures made or agreed to be made by
         the Company therefor,  (2) the Fair Value, at the time of installation,
         of all  materials  and  supplies  of the Company  (not  included in the
         preceding  Clause  (1))  which  have  been  installed  as  part of such
         Property  Additions,  including  all salvaged or reclaimed  property so
         installed  which shall have been  included in any Property  Retirements
         then  or  theretofore   certified  to  the  Trustee  in  a  Retirements
         Certificate under any provision hereof, whether or not such salvaged or
         reclaimed  property shall upon such retirement have been transferred to
         materials and supplies  account,  (3) the Fair Value in cash (as of the
         date of delivery) of any securities delivered as consideration for such
         Property  Additions  and (4) the  aggregate of the amounts  expended or
         agreed to be expended (excluding any amounts expended or to be expended
         in  respect of  interest  or  premium)  by the  Company to procure  the
         satisfaction or discharge of any  indebtedness  secured by a Prior Lien
         upon such Property Additions  outstanding or created at the time of the
         acquisition  thereof or to cause the  mortgage  or other lien  securing
         such  indebtedness to become a Prepaid Lien, as defined in this Section
         1.01,  unless such amounts shall have  theretofore been included in the
         Cost of other  Property  Additions  subject to the same Prior Lien. The
         Cost to the Company of any new plant or system  acquired as an entirety
         from  others  may be deemed to include  the Cost to the  Company of any
         franchises, rights and intangible property simultaneously acquired with
         the same,  for which no separate or distinct  consideration  shall have
         been paid or apportioned. The Cost to the Company of any property, part
         of which constitutes Property Additions,  and part does not, and all of
         which is  acquired  for a single  consideration,  shall in all cases be
         properly allocated in the Property Additions Certificate filed with the
         Trustee  pursuant  to  Paragraph  B of  Section  4.02.  In the  case of
         Property  Additions subject to a Prior Lien or Liens, the Fair Value of
         such  additions  shall be determined as if such  additions were free of
         such lien or liens.  In the case of Property  Additions  consisting  of
         property owned by a successor corporation immediately prior to the time
         it shall have become such by  consolidation,  merger or  conveyance  as
         provided in Article Thirteen, the Cost to the Company shall be the cost
         thereof to such successor  corporation,  less  applicable  reserves for
         depreciation,  retirements  and/or depletion  immediately prior to such
         consolidation, merger or conveyance.

         "Deposit of Bonds." Whenever, in connection with any application to the
         Trustee under this Restated Indenture,  the Company shall deposit Bonds
         with the Trustee or shall, in lieu of such deposit as herein  provided,
         deliver to the Trustee a certificate that certain Bonds have been paid,
         redeemed or  otherwise  retired or that cash has been  deposited  or is
         held in trust  sufficient  to pay or  redeem,  and for the  purpose  of
         paying or redeeming,  certain  Bonds,  such Bonds are sometimes  herein
         referred  to as having  been "used" or having been "made the basis" for
         the purpose accomplished by such application.

         "Electric   Utility  Business"  is  the  business  of  the  generation,
         transmission,  distribution  and/or  sale of  electricity,  or any part
         thereof.

         "Engineer" is an individual or a copartnership or a corporation engaged
         in the engineering  profession who, unless specifically  required to be
         an Independent  Engineer,  may be regularly  employed in the service of
         the Company or of an Affiliate.

         "Event of Default" is one of the events described in Section 11.01.

          "Excepted  Property"  is that  property  of the Company  described  in
          Granting Clause Eighth of this Restated Indenture.

         "Existing Bonds" are those Bonds Outstanding as of the execution of the
         Restated Indenture and are described in Article Three.

         "Fair Value" is the value of property as  determined  by an Engineer or
         Independent  Engineer in compliance  with Article Four. In  determining
         the Fair  Value of any plant or system  acquired  as an  entirety  from
         others,  consideration  shall be given only to the value,  in place, of
         the  physical  property  acquired.  In the case of  Property  Additions
         subject  to a Prior  Lien or Liens,  the Fair  Value of such  additions
         shall be  determined  as if such  additions  were  free of such lien or
         liens.  For the  purposes  of  Section  7.02,  "Fair  Value" is further
         defined at Paragraph A of Section 7.02.



<PAGE>


         "Gross  Bondable   Additions"  is  the  Amount  of  certified  Property
         Additions  which have not previously  become Bonded  Property and which
         are not subject to any lien, charge or encumbrance prior to the Lien of
         this   Restated   Indenture,   except   Prepaid   Liens  and  Permitted
         Encumbrances.

         "Indenture" is the Original  Indenture as  supplemented  and amended by
         thirty-one  supplemental  indentures thereto. The Indenture is restated
         by this  Restated  Indenture.  Reference  to the  Indenture in the bond
         forms of  Existing  Bonds  attached as Exhibits B, C, D, E, F and G are
         deemed to refer to this Restated Indenture.

         "Independent," when applied to any accountant,  engineer, appraiser, or
         other expert,  shall mean such a person who (a) is in fact independent;
         (b) does not have any substantial interest,  direct or indirect, in the
         Company or in any other  obligor upon the Bonds issued  hereunder or in
         any person  directly or indirectly  controlling,  or controlled  by, or
         under direct or indirect  common  control with, the Company or any such
         other  obligor;  and (c) is not connected with the Company or any other
         obligor  upon the Bonds  issued  hereunder  or any person  directly  or
         indirectly  controlling,  or controlled by, or under direct or indirect
         common control with,  the Company or any other obligor,  as an officer,
         employee, promoter, underwriter,  trustee, partner, director, or person
         performing similar functions.

         "Lien"  is  any  mortgage,  pledge,  security  interest,   encumbrance,
         easement, lease, reservation, restriction, servitude, charge or similar
         right  or  lien  of  any  kind,  including,   without  limitation,  any
         conditional sale or other title retention  agreement,  any lease in the
         nature  thereof,  any filing of, or  agreement to give,  any  financing
         statement under the Uniform  Commercial Code of any  jurisdiction,  and
         any defect or irregularity in record title.

         "Net  Bondable  Additions" is the amount of Gross  Bondable  Additions,
         plus the amount of any then unused  Additions  Credit which the Company
         is  entitled  to  use  and  elects  to  use,  less  the  amount  of Net
         Retirements.

         "Net  Retirements"  as of any particular  date shall mean the Amount of
         all Retirements up to that date not previously certified to the Trustee
         in a Retirement  Certificate filed under any provision of this Restated
         Indenture,   less  the  aggregate  amount  of  all  Retirement  Credits
         applicable  thereto.  If in any case the aggregate amount of applicable
         Retirement  Credits exceeds the amount of Retirements shown in any such
         Retirements Certificate,  the amount of Net Retirements for the purpose
         of such certificate  shall be deemed to be zero, but such excess may be
         carried forward and used as a Retirement  Credit in a future Retirement
         Certificate.

         "Opinion of Counsel"  is a written  opinion of counsel  selected by the
         Company,  who  may be  counsel  for  the  Company,  and  who  shall  be
         acceptable to the Trustee.



<PAGE>


         "Original  Indenture"  is the  Indenture of Mortgage and Deed of Trust,
         dated September 1, 1941,  entered into between the Central Hanover Bank
         and  Trust  Company  and  the  Company.   The  Original  Indenture  was
         supplemented and amended by thirty-one supplemental  indentures,  which
         is referred to as the  Indenture and which is restated by this Restated
         Indenture.

         "Outstanding"  or  "outstanding,"  when used as of any particular  time
         with reference to Bonds, are all of the Bonds which  theretofore  shall
         have been  authenticated  and  delivered  under the  Indenture and this
         Restated Indenture, except:

                    (a)  Bonds  theretofore   canceled  or  surrendered  to  the
                         Trustee for cancellation;

                    (b)  Bonds for the payment or  redemption  of which money in
                         the necessary  amounts shall have been  deposited  with
                         the  Trustee,  whether upon or prior to the maturity or
                         the  redemption  date of such Bonds,  provided  that if
                         such  Bonds are to be  redeemed  prior to the  maturity
                         thereof,  notice  of such  redemption  shall  have been
                         given, as provided herein,  or provisions  satisfactory
                         to the Trustee shall have been made therefor;

                    (c)  Any  reference  to  the  holders  of  a  majority  or a
                         particular  percentage of the Bonds,  or to the holders
                         of a majority or a particular  percentage  of the Bonds
                         of a particular  series,  shall mean the holders at the
                         time  in  question  of  a  majority  or  the  specified
                         percentage in aggregate  principal amount of all of the
                         Bonds then outstanding  under this Restated  Indenture,
                         or of all of the Bonds of such  particular  series then
                         outstanding under this Restated Indenture,  as the case
                         may be,  excluding Bonds owned by or for the account or
                         benefit  of the  Company  or any  other  person  who is
                         liable on the Bonds,  or an Affiliate of the Company or
                         of any such  persons;  provided that for the purpose of
                         determining  whether the Trustee  shall be protected in
                         relying on any  notice,  request,  direction,  consent,
                         waiver or other  action by the  holders of Bonds,  only
                         Bonds  which the  Trustee  knows are so owned  shall be
                         excluded; and

                    (d)  Bonds in lieu of and in  substitution  for which  other
                         Bonds shall have  authenticated and delivered  pursuant
                         to the terms of Section 2.12.

          "Permitted  Encumbrances"  are as of any  particular  time  any of the
          following:
                  (1)      Liens for taxes, assessments, or governmental charges
                           for the then current year and taxes,  assessments  or
                           governmental charges not then due and delinquent;

                  (2)      Liens for taxes,  assessments or governmental charges
                           already  due,  but the  validity  of  which  is being
                           contested at the time by the Company in good faith as
                           provided in Section 9.04;


<PAGE>

                  (3)      Liens and charges  incidental to  construction
                           effected  during the six months next  preceding such
                           time of which the Company has no notice;

                  (4)      Liens,  securing  obligations  neither assumed by the
                           Company nor on account of which it  customarily  pays
                           interest,  existing,  either at the date of execution
                           hereof, or, as to property  thereafter  acquired,  at
                           the time of  acquisition  by the  Company,  upon real
                           estate  or  rights  in or  relating  to  real  estate
                           acquired by the Company for substation,  transmission
                           line, distribution line, or right-of-way purposes;

                  (5)      Zoning laws and ordinances,  easements,  restrictions
                           and  similar   encumbrances   and  minor  defects  or
                           irregularities  of title  which do not impair the use
                           of the  property of the Company in the  operation  of
                           its business.

                           In determining,  for the purpose of any opinion to be
                  delivered  hereunder,  whether any such defect,  irregularity,
                  law  or  ordinance,   or  easement,   restriction  or  similar
                  encumbrance impairs the use of the property subject thereto in
                  the operation of the business of the Company,  counsel  giving
                  such opinion may, subject to the requirements of any statement
                  therein made pursuant to Section  1.02,  rely on an Engineer's
                  Certificate.

         "Person"  is  an  individual,   corporation,   partnership,   trust  or
         unincorporated organization, or a government or a political subdivision
         thereof.

         "Prepaid Lien" is any Prior Lien in respect of which cash sufficient to
         pay or redeem all  indebtedness  secured thereby shall be held in trust
         for such  purpose by the Trustee  hereunder  or by the trustee or other
         holder of such Prior Lien.

          "Principal office of the Trustee" is the main office of the Trustee in
          the Borough of Manhattan, City of New York.

         "Prior  Lien"  is and  includes  any  mortgage  or other  lien  (except
         Permitted  Encumbrances)  prior to the lien of this Restated  Indenture
         upon  property  hereafter  acquired  by the  Company,  existing on said
         property  and/or  placed  thereon  to  secure  unpaid  portions  of the
         purchase  price,  at the  time of  such  acquisition,  and  any  lease,
         conditional sales agreement or other title retention  contract existing
         in respect of said property or created to secure unpaid portions of the
         purchase price thereof.



<PAGE>


         "Prior Lien Obligations" are any bonds or indebtedness and/or evidences
         of indebtedness  secured by a Prior Lien. The term "outstanding," as of
         any particular time when used with reference to Prior Lien Obligations,
         shall mean all obligations  secured by a Prior Lien, except Obligations
         for  whose  payment  or  redemption  sufficient  cash  shall  have been
         irrevocably  deposited in trust with the Trustee  hereunder or with the
         trustee or other holder of such Prior Lien.

         "Property Additions" are defined at Section 4.01, Paragraph A.

         "Resolution  of the Board" is a copy of a  resolution  certified by the
         Secretary or an Assistant  Secretary of the Company under its corporate
         seal to have  been  duly  adopted  by the  Board  of  Directors  of the
         Company,  at a  meeting  thereof  duly  called  and held and at which a
         quorum was present, and to be still in full force and effect.

         "Responsible   officer  or  officers"  of  the  Trustee   includes  the
         President,  any  Vice-President,   any  Assistant  Vice-President,  the
         Secretary,  the Treasurer,  and every officer and assistant  officer of
         the Trustee customarily performing functions similar to those performed
         by the foregoing  individuals or to whom any corporate  trust matter is
         referred  because of his knowledge of and familiarity with a particular
         subject.

         "Restated Indenture" is this Restated and Amended Indenture of Mortgage
         and Deed of Trust which is a restatement of the Indenture. The Restated
         Indenture is not a new indenture; and when such term is used herein, it
         refers to the Indenture as restated by this Restated Indenture.

         "Retirements" are (a) all Bonded Property which, since November 1, 1941
         (or prior  thereto,  as regards  any of the Trust  Estate  owned by the
         Company on November 1, 1941),  shall have been worn out,  abandoned  or
         destroyed,  or released  from the Lien of this  Restated  Indenture  or
         taken by eminent domain, or purchased by any public authority  pursuant
         to the right  reserved to or vested in it by any license or  franchise,
         or otherwise  disposed of by the Company,  or permanently  retired from
         service for any reason, whether or not renewed or replaced, and (b) all
         Bonded Property which at the time has permanently  ceased to be used or
         useful in the Electric Utility Business of the Company,  and whether or
         not the cost of any such property  referred to in the foregoing Clauses
         (a) or (b) shall have been written off or eliminated  from the books of
         the  Company,  except  that,  when a minor  item of  property  has been
         replaced by other  property of equal value and  efficiency and the cost
         of such  replacement has been charged to maintenance,  repairs or other
         similar  account,  the property  replaced  shall not be considered as a
         Retirement.

                  The "amount" of all Retirements shall be as follows:

                  (1)      As to  property  owned by the  Company on or prior to
                           November 1, 1941,  the book value of such property on
                           November 1, 1941,  or on the date when such  property
                           became a Retirement in the case of Retirements  prior
                           to November 1, 1941 (such book value to be  estimated
                           if  necessary  as to  particular  property),  without
                           deducting   therefrom  any  applicable  reserves  for
                           depreciation and/or retirements;


<PAGE>


                  (2)      As to Property  Additions  or other  Bonded  Property
                           acquired  after  November  1,  1941,  the Cost to the
                           Company  or the  Fair  Value  thereof  (whichever  is
                           less),  as  certified to the Trustee at the time said
                           Property  Additions  (or other such Bonded  Property)
                           became Bonded Property (estimated,  if necessary,  as
                           to particular  property) or, if no such certification
                           shall  have  been  made  hereunder,   then  the  Cost
                           thereof.  The  Company  will  not,  on  or  prior  to
                           November  1, 1941,  change the book value of property
                           owned by it.

         "Retirement  Credits" are the  following  credits  which may be applied
         against  the  Retirements  at any time  certified  to the  Trustee in a
         Retirements Certificate under any provision hereof:

                  (1) (a) The  cash and the  principal  amount  of any  purchase
         money  obligations,  if any,  deposited  with the Trustee to obtain the
         release  of, or  representing  the  proceeds  of the  taking by eminent
         domain  or of the  purchase  by a  public  authority  or of  any  other
         disposition  of, or of  insurance  on,  any  property  included  in the
         Retirements then so certified, minus

                  (b) The maximum amount,  if any, then estimated by the Company
         to be withdrawable in partial  reimbursement  for taxes pursuant to the
         provisions of Section 8.07 in respect of such property, plus or minus

                  (c) Such sum,  if any,  as may be  necessary  to  reflect  any
         difference  not  previously  adjusted  between (i) amounts  theretofore
         estimated pursuant to the foregoing  subdivision (b) of this Clause (1)
         to be withdrawable in respect of property  previously released and (ii)
         the actual net amounts  withdrawn in respect of such property  pursuant
         to Section 8.07;

                  (If in any case the result of the calculation  required by the
         foregoing  subdivisions (a), (b) and (c) is less than zero, such amount
         shall be deducted from the aggregate amount of other Retirement Credits
         in computing Net Retirements.)

                  (2) The  Amount of all  Property  Additions,  if any,  used to
         obtain the release of any property  included in the Retirements then so
         certified; and

                  (3) The excess credit, if any, carried forward from a previous
         Retirements   Certificate,   as  provided  in  the  definition  of  Net
         Retirements in this Section 1.01.

         "Subsidiary"  is any  corporation,  more  than  50% of the  issued  and
         outstanding  shares  of which  having  ordinary  voting  power  for the
         election  of  directors  (whether or not at the time stock of any other
         class or  classes  shall or might  have  voting  power by reason of the
         happening  of any  contingency)  shall at the time be owned  legally or
         equitably  by the Company  and/or by one or more  Subsidiaries  as said
         term is herein defined.



<PAGE>


         "Trustee" is The Chase  Manhattan  Bank, a  corporation  organized  and
         existing  under  the laws of the State of New York or,  subject  to the
         provisions  of Article  Fourteen,  its  successors in the trusts hereby
         created.

          "Trust  Indenture Act" is the Trust  Indenture Act of 1939, as amended
          and as in effect on the date hereof.

          "Unbonded  Cash" is cash,  other than Bonded Cash, held by the Trustee
          or by the trustee or other holder of a Prior Lien.

          "Unbonded Property" is and includes all property of the Company, other
          than Bonded Property and Excepted Property.

         "Written Order of the Company,"  "Written  Request of the Company," and
         "Written  Consent of the Company" are,  respectively,  a written order,
         request  or  consent  signed  in the  name  of the  Company  under  its
         corporate  seal by the  Chairman  of the  Board or the  President  or a
         Vice-President  and by the  Treasurer or an Assistant  Treasurer of the
         Company.

         Section 1.02.  Opinion and Certificate  Requirements.  Whenever in this
Restated Indenture it is provided that a certificate,  opinion or other document
shall comply with the  provisions  of this Section  1.02,  such  document  shall
include:

                  (1) a  statement  that the  person  making  such  certificate,
         opinion or other document has read the covenant or condition in respect
         of which such document is furnished; and

                  (2) a  brief  statement  as to the  nature  and  scope  of the
         examination  or  investigation  upon which the  statements  or opinions
         contained in such document are based; and

                  (3) a statement  that,  in the opinion of such person,  he has
         made such examination or investigation as is necessary to enable him to
         express an  informed  opinion as to  whether  or not such  covenant  or
         condition has been complied with; and

                  (4) a  statement  as to whether or not, in the opinion of such
         person, such covenant or condition has been complied with.



<PAGE>


         Section  1.03.  Documentary  Requirements.  Wherever  in this  Restated
Indenture,  in  connection  with  any  application  for the  authentication  and
delivery  of Bonds  hereunder  or for the  withdrawal  of any moneys held by the
Trustee under any provision  hereof or for the execution of any release,  or any
other  application  or  certificate  or report to the Trustee  hereunder,  it is
provided that the Company shall deliver resolutions,  certificates,  statements,
opinions,  evidence,  reports,  orders and/or other papers as a condition of the
granting of such  application,  or as evidence of the Company's  compliance with
any condition or covenant  herein  contained,  it is intended that the truth and
accuracy,  at the time of the granting of such  application  or at the effective
date of such  certificate  or  report  (as the case  maybe),  of the  facts  and
opinions  stated  in  such  resolutions,   certificates,  statements,  opinions,
evidence,  reports, orders and/or other papers shall in each and every such case
be  conditions  precedent  to the right of the Company to have such  application
granted or to the  effectiveness  of such  certificate or report.  Nevertheless,
upon any such application, certificate or report, the resolutions, certificates,
statements,  opinions, evidence, reports, orders and/or other papers required by
any of the provisions of this Restated  Indenture to be delivered to the Trustee
as a  condition  of the  granting  of such  application,  or as evidence of such
compliance,  may, subject to the provisions of Section 14.02, be received by the
Trustee as conclusive evidence of any statement therein contained,  and, subject
to such  provisions,  shall be full  warrant,  authority  and  protection to the
Trustee  acting on the faith  thereof,  not only in respect of the statements of
fact therein made, but also in respect of the opinions therein set forth. Before
granting any such  application,  or accepting such evidence of  compliance,  the
Trustee shall not (subject to the provisions of Section 14.02) be under any duty
to make any further investigation into the truth of the matters evidenced by any
such resolution, certificate, statement, opinion, evidence, report, order and/or
other paper, but it may in its discretion make any such  independent  inquiry or
investigation  as to it may seem proper.  If the Trustee shall determine to make
such  further  inquiry,  it shall be entitled to examine the books,  records and
premises  of the  Company,  either  itself or by agent or  attorney,  and unless
satisfied,  with or without such  examination,  of the truth and accuracy of the
matters  stated  in  such  resolutions,   certificates,   statements,  opinions,
evidence,  reports,  orders and/or other papers, it shall be under no obligation
to  grant  the  application  or to  accept  such  evidence  of  compliance.  The
reasonable  expenses of every such examination or other inquiry shall be paid by
the Company or, if paid by the  Trustee,  shall be repaid by the  Company,  upon
demand,  with  interest at the rate of 6% per annum and,  until such  repayment,
shall be secured  under this  Restated  Indenture  in  priority to the Bonds and
coupons.

         Section  1.04.  Documentary  Requirements--More  Than  One  Certificate
Permissible.  Whenever  in this  Restated  Indenture  provision  is made for the
delivery of any  certificate,  opinion or other document signed by an officer or
officers of the Company or by any other person,  such  provision may be complied
with by the delivery of more than one  certificate or opinion or other document,
each covering a particular part of the matter or matters required to be included
in the  certificate  or opinion or other  document so provided  for; and in such
event such separate  certificates,  opinions or other  documents need not all be
signed  by  the  same   officers  or  persons,   provided   that  such  separate
certificates,  opinions or other documents shall, taken together, contain all of
the  statements  herein  provided for and be signed by an officer or officers or
person or persons, as the case may be, by whom the certificate, opinion or other
document so provided for is authorized or required to be signed.



<PAGE>


         Section 1.05. Redemption  Requirements--Cash  Deposit. Wherever in this
Restated  Indenture it is provided or permitted  that there be deposited with or
held in trust by the Trustee or other  person cash  sufficient  to pay or redeem
any  bonds,  obligations  or other  indebtedness,  the  amount  of cash so to be
deposited or held shall be the principal  amount of such bonds,  obligations  or
other  indebtedness  and all unpaid  interest  thereon to maturity,  unless said
bonds,  obligations or other  indebtedness are redeemable and are to be redeemed
prior to maturity and there shall be furnished to the Trustee proof satisfactory
to it that notice of such  redemption  on a specified  redemption  date has been
duly  given or  provision  satisfactory  to the  Trustee  shall be made for such
notice, in which case the amount of cash so to be deposited or held shall be the
principal amount of such bonds, obligations or indebtedness and interest thereon
to the redemption date, together with the redemption premium, if any.


                                   ARTICLE TWO

                                    THE BONDS

         Section 2.01.  Bond Form. The text of the Bonds and the  certificate of
authentication  of the Trustee to be executed thereon are to be substantially in
the following form, with such appropriate  omissions,  insertions and variations
as are in this Restated Indenture provided or permitted.

                             (General Form of Bond)

      No._________                                         $____________

                             BLACK HILLS CORPORATION

                      FIRST MORTGAGE BOND, SERIES _________

                            Due _____________________

                  Black Hills Corporation  (hereinafter called the "Company"), a
         corporation organized and existing under the laws of the State of South
         Dakota, for value received, hereby promises to pay to
                                             ,  or registered  assigns,  on the
         day                      of                ,                       at
                                                                              ,
                                     Dollars,  in any coin or currency of the
         United  States of America which at the time of payment shall be legal
         tender for the payment of public and private debts, and to pay interest
         thereon from the date hereof, at the rate of
         per cent per annum, payable at
         in like coin or currency      annually on            and        in each
         year  until  the  principal hereof  shall have become due and  payable,
         and thereafter if default be made in the payment of such principal, at
         the rate of six per cent, per annum until the principal hereof shall
         be paid.



<PAGE>


               This Bond is one of an  authorized  issue of Bonds of the Company
          known as its "First Mortgage Bonds," issued and to be issued in one or
          more series under,  and all equally and ratably secured (except as any
          sinking, amortization,  improvement,  renewal or other analogous fund,
          established  in  accordance   with  the  provisions  of  the  Restated
          Indenture  hereinafter  mentioned,  may afford additional security for
          the  Bonds of any  particular  series)  by, a  Restated  Indenture  of
          Mortgage  and  Deed  of  Trust  dated  as  of  ________________,  1998
          (hereinafter called the "Restated  Indenture") executed by the Company
          to The Chase Manhattan Bank (herein called the "Trustee"), as Trustee,
          to which Restated  Indenture and all indentures  supplemental  thereto
          reference is hereby made for a description of the properties mortgaged
          and pledged, the nature and extent of the security,  the rights of the
          holders of said Bonds and of the Trustee and of the Company in respect
          of such security,  and the terms and conditions  upon which said Bonds
          are and are to be issued and secured.

               To the extent permitted by the Restated Indenture and as provided
          therein,  with the consent of the Company and upon the written consent
          or affirmative  vote of at least  sixty-six and two-thirds per cent in
          principal  amount  of the  Bonds  then  outstanding  and  entitled  to
          consent,  and of not less than  sixty-six  and  two-third  percent  in
          principal amount of the Bonds then outstanding and entitled to consent
          of each series affected  thereby in case one or more but less than all
          of the series of Bonds  issued  under the  Restated  Indenture  are so
          affected, the rights and obligations of the Company and of the holders
          of Bonds and the terms and provisions of the Restated Indenture and of
          any instrument supplemental thereto may be modified from time to time,
          provided that no such  modification or alteration  shall be made which
          would postpone the date fixed herein or in the Restated  Indenture for
          the payment of the  principal of, or any  installment  of interest on,
          the Bonds, or reduce the principal of, or the rate of interest payable
          on, the Bonds,  or reduce the  percentage of the  principal  amount of
          Bonds the consent of which is required  for the  authorization  of any
          such modification of alternation,  or which would modify,  without the
          written  consent of the Trustee,  the rights,  duties or immunities of
          the Trustee.

               As provided in said Restated  Indenture,  said Bonds are issuable
          in series  which may vary as in said  Restated  Indenture  provided or
          permitted.  This  Bond is one of a  series  of bonds  entitled  "First
          Mortgage Bonds, Series ."

               (Here  insert  reference to  redemption  if Bonds of a particular
          series are  redeemable  and to sinking or other fund if such Bonds are
          entitled thereto.)

               If an event of default,  as defined in said  Restated  Indenture,
          shall occur,  the principal of this Bond may become or be declared due
          and  payable,  in the  manner  and with the  effect  provided  in said
          Restated Indenture.


<PAGE>


               This  Bond is  transferable  by the  registered  owner  hereof in
          person or by attorney  authorized in writing,  at                   ,
          upon surrender for cancellation of this Bond and on payment of
          charges, and upon any such transfer  a new  registered  Bond,  of the
          same  series,  for the same aggregate  principal  amount,  will be
          issued  to the  transferee  in exchange herefor.

         (Here insert provisions for exchangeability, if any.)

               The  Company  and the  Trustee  may deem and treat the  person in
          whose name this Bond is registered as the absolute  owner hereof,  for
          the  purpose of  receiving  payment of or on account of the  principal
          hereof and  interest  due  hereon,  and  neither  the  Company nor the
          Trustee shall be affected by any notice to the contrary.

               No recourse  shall be had for the payment of the  principal of or
          the interest on this Bond,  or for any claim based hereon or otherwise
          in  respect   hereof  or  of  said   Indenture  or  of  any  indenture
          supplemental thereto, against any incorporator,  stockholder, director
          or officer, as such, past, present or future, of the Company or of any
          predecessor or successor  corporation,  either directly or through the
          Company or any predecessor or successor corporation, whether by virtue
          of any constitution,  statute or rule of law, or by the enforcement of
          any  assessment or penalty or by any legal or equitable  proceeding or
          otherwise  howsoever;  all such  liability  being,  by the  acceptance
          hereof and as a part of the  consideration  for the  issuance  hereof,
          expressly  waived and released by every holder  hereof,  as more fully
          provided in said Restated Indenture;  provided,  however, that nothing
          herein  or in said  Restated  Indenture  contained  shall  be taken to
          prevent  recourse to and the enforcement of the liability,  if any, of
          any shareholder or any stockholder or subscriber to capital stock upon
          or in respect of shares of capital stock not fully paid up.

               This Bond shall not be valid or become obligatory for any purpose
          until the certificate of authentication  hereon shall have been signed
          by the  Trustee,  or its  successor  as Trustee  under  said  Restated
          Indenture.

               IN WITNESS WHEREOF, the Company has caused this Bond to be signed
          in its name by its  President or one of its Vice  Presidents,  and its
          corporate seal to be impressed or imprinted hereon and attested by its
          Secretary or one of its Assistant Secretaries.

Dated,

                                            BLACK HILLS CORPORATION,

                                            By
                                                                    President.

Attest:



<PAGE>


                  Secretary.

                  (FORM OF TRUSTEE'S CERTIFICATE OF
                    AUTHENTICATION FOR ALL BONDS)

               This  is one  of  the  Bonds  described  in the  within-mentioned
          Restated Indenture.

                                            THE CHASE MANHATTAN BANK,
                                                          As Trustee,

                                                By
                                                   Authorized Officer

         Section 2.02. Issuance of  Bonds--Limitations.  The aggregate principal
amount of Bonds which may be authenticated  and delivered and outstanding  under
this Restated Indenture is not limited, except as hereinafter in Articles Three,
Four,  Five and Six provided.  The power of the Company to issue Bonds hereunder
may be  exercised  from time to time  whenever  Bonds may be  authenticated  and
delivered  in  accordance  with  Articles  Three,  Four,  Five or Six;  and this
Restated  Indenture shall be and constitute a continuing Lien to secure the full
final payment of the principal of and interest on all Bonds which may, from time
to time, be executed,  authenticated and delivered hereunder,  and issued by the
Company.

         Section 2.03.  Registered Bonds. The Bonds issuable under this Restated
Indenture  shall be  issued as  registered  Bonds in series as from time to time
shall be authorized by the Board of Directors of the Company.

         Section 2.04.  Naming Series of Bonds. The Bonds of all series shall be
known and entitled generally as the "First Mortgage Bonds" of the Company.  With
respect to the Bonds of any particular  series,  the Company may  incorporate in
the general title of such Bonds the rate of interest  borne by the Bonds of such
series, the maturity date or any other words or figures  descriptive  thereof or
of the security  thereof or  distinctive  or definitive  of such series,  as the
Board of Directors of the Company may determine.

         Section 2.05. New Bonds--Optional  Provisions. The Bonds of each series
shall bear such date or dates,  shall be payable at such place or places,  shall
be transferable  or  registerable at such place or places,  shall mature on such
date, or in the case of serial maturities on such dates,  shall bear interest at
such rate, or in the case of serial  maturities  at such rates,  payable in such
installments  and on such dates,  and may be redeemable  before maturity at such
price or  prices  and upon  such  terms  and  conditions,  as shall be fixed and
determined  by  the  Board  of  Directors  of  the  Company,  and  as  shall  be
appropriately  expressed  in the Bonds of such  series.  The Company may, at the
time  of  the  creation  of any  particular  series  of  Bonds  or at  any  time
thereafter,  make,  and the Bonds of such  series may  contain any or all of the
following:


<PAGE>


               A.  Provision  for the  payment  of the  principal  of and/or the
          interest on the Bonds of such series  without  deduction for specified
          taxes, assessments or other governmental charges;

               B.  Provision for refunding or  reimbursing to the holders of the
          Bonds  of  such  series,   specified   taxes,   assessments  or  other
          governmental  charges,  but the obligation of the Company to refund or
          reimburse any such taxes,  assessments or other  governmental  charges
          shall not be deemed to be a part of the  indebtedness  secured by this
          Restated Indenture;

               C.  Provision for the exchange or conversion of the Bonds of such
          series for or into new Bonds issuable  hereunder of a different series
          and/or shares of stock of the Company and/or other securities;

               D. Provision for a sinking, amortization, improvement, renewal or
          other analogous fund; and

               E. Provision limiting the aggregate principal amount of the Bonds
          of such series;

all to such  extent,  at such  times and upon such terms and  conditions  as the
Board of Directors of the Company may  determine  and fix. All Bonds of the same
series shall be identical as to date of maturity, rate of interest, and terms of
redemption if redeemable, except that in the case of serial maturities, they may
be of different maturity dates, rates of interest and terms of redemption.

         Each new series of Bonds shall be created by an indenture  supplemental
to the  Restated  Indenture  hereto  authorized  by a  Resolution  of the  Board
delivered to the Trustee.

         The Bonds of each series shall be substantially in the form as provided
at Section 2.01  hereofwith  such  omissions,  variations  and insertions as are
permitted by this  Restated  Indenture,  and may have such  letters,  numbers or
other marks of  identification  or designation  and such legends or endorsements
printed, lithographed or engraved thereon, as may be required to comply with the
rules of any securities  exchange or to conform to any usage in respect thereof,
or as may, consistently herewith, be prescribed by the Board of Directors of the
Company.  The form of the Bonds of each new series shall be  established  by the
indenture supplemental hereto creating such series as hereinabove provided.



<PAGE>


         Section 2.06.  Denominations  and Interest Rates. The Bonds of each new
series  shall be issued in such  denominations  as the Board of Directors of the
Company may determine. The Bonds shall bear interest from, and shall be dated as
of,  the  interest  date  next  preceding  the date on which  the same  shall be
authenticated  by the Trustee,  or, if such date of  authentication  shall be an
interest  date,  such Bonds shall bear interest  from, and shall be dated as of,
such interest date, or, if such date of authentication  shall be a date prior to
the first  interest  payment date for Bonds of the series  being  authenticated,
such Bonds shall bear interest from, and shall be dated as of, the  commencement
of the first interest period for such series; provided, however, that, if at the
time of  authentication  of any Bond of any  series,  interest  is in default on
outstanding Bonds of such series,  such Bond shall bear interest from, and shall
be  dated  as of,  the  interest  date for such  series  to which  interest  has
previously been paid or made available for payment on outstanding  Bonds of such
series.

         Section 2.07. Exchange of Bonds. If and to the extent that the Company,
by  Resolution  of the  Board  delivered  to  the  Trustee,  or by an  indenture
supplemental hereto authorized by like resolution, shall so determine, either at
the time of the creation of any series of Bonds or at any time thereafter, Bonds
of such series may, at the option of the holders thereof, and upon the surrender
thereof to the Trustee,  be  exchanged  for Bonds of the same series of the same
aggregate  principal  amount,  but of a  different  authorized  denomination  or
denominations.  All Bonds  surrendered  for exchange  shall be  accompanied by a
written instrument of transfer, in form approved by the Company, executed by the
registered  owner in person or by attorney  authorized in writing.  All Bonds so
surrendered  shall be  forthwith  canceled by the Trustee.  All Bonds  executed,
authenticated  and delivered in exchange for Bonds so  surrendered  shall be the
valid  obligations  of the  Company,  evidencing  the  same  debt  as the  Bonds
surrendered,  and shall be secured by the Lien of this  Restated  Indenture  and
entitled to all of the benefits and protection  hereof to the same extent as the
Bonds in exchange for which they shall be executed, authenticated and delivered.
Any such  exchange of Bonds shall be subject to payment of the charges set forth
in Section 2.12.

         Section 2.08.  Execution of Bonds. From time to time the Bonds issuable
hereunder  shall be  executed  on behalf of the  Company by its  Chairman of the
Board,  President or a Vice-President,  under its corporate seal attested by its
Secretary or an Assistant  Secretary,  or by such other form of execution as may
be  prescribed in accordance  with  applicable  law by a Resolution of the Board
delivered to the Trustee.  The  corporate  seal of the Company may be affixed to
any Bond by printing,  engraving,  lithographing,  stamping or otherwise making,
placing or affixing, or causing to be printed, engraved,  lithographed,  stamped
or otherwise made, placed or affixed, upon such Bond, by any process whatsoever,
any  impression,  facsimile or other  representation  of said corporate seal. In
case any  officer of the  Company who shall have signed or sealed any Bond shall
cease to be such  officer  of the  Company  before  the Bond so signed or sealed
shall have been actually  authenticated and delivered by the Trustee, such Bond,
nevertheless, may be authenticated and delivered and issued as though the person
who had  signed or  sealed  such Bond had not  ceased  to be an  officer  of the
Company;  and also any Bond may be signed and sealed on behalf of the Company by
such  person as at the actual  date of the  execution  of such Bond shall be the
proper  officer of the  Company,  although  at the date of such Bond such person
shall not have been an officer of the Company.



<PAGE>


         Section 2.09. Authentication of Bonds. The Bonds when executed shall be
delivered  to the  Trustee  for  authentication  by it;  and the  Trustee  shall
authenticate and deliver said Bonds as in this Restated  Indenture  provided and
not  otherwise.  Only  such  Bonds  as  shall  bear  thereon  a  certificate  of
authentication  substantially  in the form at Section  2.01 and  executed by the
Trustee, shall be secured by this Restated Indenture or be entitled to any Lien,
right or benefit hereunder.  No Bond shall be valid or become obligatory for any
purpose until such certificate of  authentication  shall have been duly executed
on such Bond;  and such  authentication  by the  Trustee  upon any Bond shall be
conclusive  evidence and the only evidence that the Board so  authenticated  has
been duly issued hereunder.

         Section 2.10. Temporary Bonds and Exchange.  Pending the preparation of
definitive  Bonds of any series the Company may execute,  and the Trustee  shall
authenticate  and deliver,  in lieu of such definitive  Bonds and subject to the
same  provisions,  limitations  and conditions,  one or more temporary  printed,
lithographed or typewritten Bonds, of any denomination  specified in the Written
Order of the Company for the authentication and delivery thereof,  substantially
of the  tenor of the  Bonds to be  issued  as  hereinbefore  recited,  with such
omissions,  insertions and  variations as the officers  executing such Bonds may
determine.  The Company shall without  unreasonable  delay,  at its own expense,
prepare,  execute and deliver to the Trustee, and thereupon,  upon the surrender
of temporary Bonds, the Trustee shall deliver in exchange  therefor,  definitive
authenticated  Bonds of the same series and for the same principal amount in the
aggregate as the temporary  Bonds  surrendered.  Definitive  Bonds may be in the
form of fully engraved Bonds or printed or lithographed  Bonds on steel engraved
borders. All temporary Bonds so surrendered,  whether in exchange for definitive
Bonds or for other temporary Bonds,  shall be forthwith canceled by the Trustee.
Until exchanged for definitive  Bonds,  each of the temporary Bonds shall in all
respects be entitled to the Lien and security of this  Restated  Indenture,  and
interest thereon, when and as payable,  shall be paid to the registered owner of
such Bond.

         Section 2.11.  Registrar and Registration.  The Trustee shall be deemed
to be and is  hereby  appointed  by the  Company  a  Registrar  of Bonds  issued
hereunder,  for the purpose of  registering  and  transferring  all Bonds issued
hereunder and entitled to be so registered or transferred, and the Company shall
keep or cause to be kept at the principal  office of the Trustee,  books for the
registration and transfer of Bonds issued hereunder;  and, upon presentation for
such purpose,  the Company shall,  under such  reasonable  regulations as it may
prescribe,  register  or  transfer  or cause  to be  registered  or  transferred
therein,  any of the Bonds issued  hereunder and entitled to be so registered or
transferred.

         Whenever the registered  owner of any registered  Bond shall  surrender
the same to the Company for  transfer at said  principal  office of the Trustee,
together with a written  instrument of transfer in form approved by the Company,
executed  by such  registered  owner in person,  or by  attorney  authorized  in
writing, the Company shall execute, and the Trustee shall authenticate,  and the
Company shall deliver in exchange therefor a new registered Bond or Bonds of the
same series,  for the same aggregate  principal amount. All Bonds so surrendered
shall be forthwith canceled by the Trustee.

         The  Company  shall  not be  required  to make  transfers  of  Bonds as
provided in this  Section for a period of two days next  preceding  any interest
payment date but shall not be prohibited hereby from so doing.



<PAGE>


         Similar  books  may also be kept at such  other  place or places as the
Board of  Directors  of the  Company  may  determine  for the  registration  and
transfer of the Bonds of any particular series,  open at all times to inspection
by the  Trustee,  in  which  the  Bonds of such  series  may be  registered  and
transferred as in this Section provided; and such other place or places may (but
need not) be appropriately recited in the Bonds of such series.

         The Company and the Trustee may deem and treat the person in whose name
any Bond  shall be  registered  upon the books of the  Company  as  hereinbefore
provided,  as the  absolute  owner of such  Bond for the  purpose  of  receiving
payment of or on  account of the  principal  of and  interest  on such Bond and,
subject to the  provisions of  Subdivision  (b) of Section  9.17,  for all other
purposes; and all such payments so made to any such registered owner or upon his
order shall be valid and effectual to satisfy and  discharge the liability  upon
such Bond to the extent of the sum or sums so paid,  and neither the Company nor
the Trustee shall be affected by any notice to the contrary.

         Neither the Company nor the  Trustee  shall be bound to  recognize  any
person as the holder of a Bond  outstanding  hereunder unless and until his Bond
is submitted for inspection,  if required,  and his title thereto satisfactorily
established, if disputed.

         Section 2.12. Governmental Charges. For any exchange of Bonds for Bonds
of another  denomination,  or for any  transfer of any Bond,  the Company at its
option may require the payment of a sum sufficient to reimburse it for any stamp
tax or other  governmental  charge incident thereto,  and in addition thereto, a
further  sum not  exceeding  $2 for each new  Bond,  if any,  issued  upon  such
exchange or transfer.

     Section 2.13.  Bonds Without  Certificates  Allowed.  The Company may issue
Bonds without  certificates and under a  noncertificated  system of registration
for any series of Bonds as authorized by the Trustee.


<PAGE>


         Section  2.14.  Replacement  of  Bonds.  In  case  any  Bond  shall  be
mutilated,  lost,  stolen  or  destroyed,  then,  upon  the  production  of such
mutilated Bond, or upon receipt of evidence  satisfactory to the Company and the
Trustee of the loss,  theft or destruction of such Bond and of the ownership and
authenticity thereof, and upon receipt also of indemnity satisfactory to each of
them, the Company in its discretion may execute, and thereupon the Trustee shall
authenticate  and  deliver a new bond of like tenor in  exchange  for,  and upon
cancellation  of, the mutilated  Bond or in lieu of the Bond so lost,  stolen or
destroyed; or, if any such mutilated,  lost, stolen or destroyed Bond shall have
matured or be about to mature,  instead of issuing a new Bond, the Company, with
the consent of the Trustee,  may pay the same without surrender thereof,  in the
case of any such lost,  stolen or destroyed Bond. Any new Bond issued under this
Section in lieu of any Bond alleged to have been lost, stolen or destroyed shall
constitute an original contractual obligation of the Company, whether or not the
Bond alleged to have been lost,  stolen or destroyed be at any time  enforceable
by anyone;  and such new Bond shall be entitled to the benefits of this Restated
Indenture equally and ratably with all other Bonds issued hereunder  (subject to
the  provisions  of  Section  9.02).  The  Company  and the  Trustee,  in  their
discretion,  may place upon any such new Bond a distinguishing  mark or a legend
to comply with the rules of any  securities  exchange or to conform to any usage
with  respect  thereto,  but such mark or  legend  shall in no wise  affect  the
validity of such new Bond.  The Company may at its option require the payment of
a sum sufficient to reimburse it for any stamp tax or other governmental charge,
and any expenses  incurred by the Company or the Trustee in connection  with the
issuance of any such new Bond,  and also a further sum not exceeding $2 for each
such new Bond.


                                  ARTICLE THREE

                                 EXISTING BONDS

         Section 3.01.  Series Y Bonds.  First Mortgage Bonds,  Series Y, 9.49%,
due June 15,  2018  (the  "Series Y  Bonds"),  have  been  duly  issued  and are
presently  outstanding  and secured by the Restated  Indenture in the  principal
amount outstanding of $5,420,000.

                  A. Attached to this Restated  Indenture as Exhibit B is a copy
         of the Bond form setting  forth the  interest  rate and other terms and
         conditions of the Series Y Bonds.

                  B. The Series Y Bonds shall be redeemable (except as otherwise
         provided in the  following  Paragraphs C or F of this Section  3.01) at
         the option of the Company,  at any time and from time to time, in whole
         or in part,  on or after  June 15,  1991,  in the  manner  and upon the
         notice  provided  in  Article  Ten of the  Restated  Indenture,  at the
         redemption  prices,  and subject to the conditions set forth in Exhibit
         B,  together,  in each case,  with accrued  interest to the  redemption
         date.  In the case of any  redemption  of  Series Y Bonds for which the
         Make-Whole  Premium set forth in Exhibit B may be payable,  the Company
         will give written notice to the registered owners of the Series Y Bonds
         to be  redeemed,  and to the  Trustee,  by telecopy  or other  same-day
         written communication,  three business days prior to the date fixed for
         redemption,  which notice shall set forth the  Make-Whole  Premium,  if
         any,  applicable  to  the  Series  Y  Bonds  to be  redeemed,  and  the
         calculations used to determine the amount of such premium.

                  C. Any  monies  applied  to the  redemption  of Series Y Bonds
         pursuant to the provisions of Section 8.08(a) of the Restated Indenture
         on or after  June 15,  1991 and on or  before  June 14,  2008,  and any
         monies  applied to the  redemption  of Series Y Bonds  pursuant  to the
         provisions  of Section  8.08(b) of the Restated  Indenture on or before
         June 14, 2008,  shall be so applied at a redemption price equal to 100%
         of the  principal  amount of the  Series Y Bonds to be  redeemed,  plus
         accrued  interest to the redemption  date,  plus an amount equal to the
         Make-Whole Premium set forth in the form of the Series Y Bonds provided
         in  Exhibit  B.  Monies  applied  to the  redemption  of Series Y Bonds
         pursuant to the provisions of Section 8.08(a) or Section 8.08(b) of the
         Restated  Indenture  on or after June 15,  2008,  shall be applied at a
         redemption  price equal to the  applicable  percentage of the principal
         amount of the Series Y Bonds to be redeemed set forth in Exhibit B plus
         accrued interest to the redemption date.



<PAGE>


                  D. As a sinking fund for the retirement of Series Y Bonds,  so
         long as any of the Series Y Bonds  shall be  outstanding,  the  Company
         will deposit with the Trustee on June 14, 1998, and annually thereafter
         on each June 14 to and  including  June 14,  2017 (each such date being
         herein  sometimes  referred  to as a  "Series Y  Sinking  Fund  Payment
         Date"),  cash in an amount  sufficient  for the  redemption of $290,000
         aggregate  principal  amount of Series Y Bonds on the next ensuing June
         15 at a  redemption  price  of 100% of the  principal  amount  thereof,
         together,  in each case, with accrued  interest to the redemption date,
         and thereupon  the Trustee  shall apply such cash to the  redemption of
         said  aggregate  principal  amount of the Bonds of said  series on said
         next ensuing June 15. Any  redemption  of less than all of the Series Y
         Bonds shall not relieve the Company of its  obligation to redeem Series
         Y Bonds in accordance with the requirements of this Paragraph D.

                  E. In addition to the mandatory sinking fund payments required
         by  Paragraph  D, on June 15,  2008 and on any  Series Y  Sinking  Fund
         Payment Date  thereafter,  the Company  shall have the option to double
         the mandatory  sinking fund payment as long as the aggregate  principal
         amount of the Series Y Bonds retired  pursuant to this Paragraph E does
         not exceed  twenty-five  percent (25%) of the original principal amount
         of the Series Y Bonds.  Any  redemption  pursuant  to this  Paragraph E
         shall be at a redemption  price of 100% of the principal  amount of the
         Series Y Bonds to be  redeemed,  together  in each case,  with  accrued
         interest to the  redemption  date.  Moneys  deposited  with the Trustee
         pursuant  to this  Paragraph  E shall be applied by the  Trustee to the
         redemption  of Series Y Bonds on the next ensuing June 15. In the event
         the  Company  shall  elect to  redeem  Series Y Bonds  pursuant  to the
         provisions of this  Paragraph E, the Company shall give written  notice
         of such  election to the Trustee on or before the 55th day prior to the
         applicable Series Y Sinking Fund Payment Date.

                  F.  Whenever  the Trustee  shall be  required to redeem  Bonds
         pursuant to the  provisions of Paragraphs D and E of this Section 3.01,
         the  Trustee  shall,  on or before  the 45th day prior to the  Series Y
         Sinking Fund Payment Date,  proceed to select for redemption,  from the
         Bonds of said series,  in the manner provided in Paragraph G of Section
         3.01, the aggregate  principal  amount of Bonds of said series required
         by the  provisions of Paragraphs D and E to be redeemed by  application
         of the cash to be paid to the  Trustee  on said  Series Y Sinking  Fund
         Payment  Date,  and for and on behalf of the Company and in the name of
         the  Company,  the  Trustee  shall  give  notice,  as  required  by the
         provisions of Article Ten of the Restated Indenture,  of the redemption
         for the Series Y Sinking Fund of the Bonds so selected.  Subject to the
         provisions  of this  Article,  the  redemption  of such Bonds  shall be
         effected in the manner and upon the terms  provided in Section 10.03 of
         the Restated  Indenture at the sinking fund redemption price of 100% of
         the principal  amount  thereof,  together,  in each case,  with accrued
         interest to the redemption date.



<PAGE>


                  G.  Notwithstanding  the  provisions  of Section  10.03 of the
         Restated Indenture,  in case of the redemption at any time of less than
         all the  outstanding  Series Y  Bonds,  the  particular  Bonds or parts
         thereof  to be  redeemed  shall be  selected  by the  Trustee  from the
         outstanding  Series Y Bonds not  previously  called for  redemption  as
         nearly as  practicable  pro rata  among the  registered  holders of the
         Series Y Bonds  according to the respective  principal  amounts of such
         Bonds, provided that the portions of the principal of Series Y Bonds at
         any time so selected for redemption in part shall be equal to $1,000 or
         an integral multiple thereof.

                  H. The Company further  covenants that so long as any Series Y
         Bonds  shall  remain  outstanding,  the Company  will not,  without the
         consent  of the  holder  of each of the  Series  Y  Bonds,  revise  the
         original  schedule of sinking fund  payments as provided in Paragraph D
         of Section 3.01 or modify any of the redemption prices for the Series Y
         Bonds as provided in Exhibit B. The  provisions  of this  covenant  can
         only be modified, amended or otherwise waived with approval from all of
         the holders of Series Y Bonds outstanding, excluding any Series Y Bonds
         held by the Company.

         Section 3.02.  Series Z Bonds.  First Mortgage Bonds,  Series Z, 9.35%,
due May 29, 2021 (the "Series Z Bonds"), have been duly issued and are presently
outstanding  and  secured by the  Restated  Indenture  in the  principal  amount
outstanding of $35,000,000.
The terms and conditions of the Series Z Bonds are as follows:

                  A. Attached to this Restated  Indenture as Exhibit C is a copy
         of the Bond form setting  forth the  interest  rate and other terms and
         conditions of the Series Z Bonds.

                  B. The Series Z Bonds shall be redeemable (except as otherwise
         provided in the last sentence of this  Paragraph B or in Paragraph F of
         this Section  3.02) at the option of the Company,  at any time and from
         time to time,  in whole or in part,  on or after May 29,  2010,  in the
         manner and upon the notice  provided  in Article  Ten of this  Restated
         Indenture, at the redemption prices, and subject to the conditions, set
         forth in the form at Exhibit C,  together,  in each case,  with accrued
         interest to the redemption date.

                  C. Any monies  applied to the  redemption of Bonds of Series Z
         pursuant to the  provisions of Section 8.08 of this Restated  Indenture
         before May 29, 2010, shall be so applied at a redemption price equal to
         100% of the  principal  amount of the Bonds of Series Z to be redeemed,
         plus accrued  interest to the redemption  date, plus an amount equal to
         the Make-Whole  Premium as provided in this Paragraph C. Monies applied
         to the  redemption  of Series Z Bonds  pursuant  to the  provisions  of
         Section 8.08 of the Restated  Indenture on or after May 29, 2010, shall
         be applied at a redemption price equal to the applicable  percentage of
         the principal  amount of the Series Z Bonds to be redeemed set forth in
         the form at Exhibit C plus accrued interest to the redemption date.



<PAGE>


                  The "Make-Whole Premium" shall mean the product of the excess,
                  if any, of (a) the present  value as of the date of redemption
                  of all remaining  scheduled  principal and interest  payments,
                  including  the  principal  payment at final  maturity  and the
                  remaining  scheduled  interest  payments on the Series Z Bonds
                  (determined  by discounting  such amounts at the  Reinvestment
                  Yield from the  respective  dates on which such  principal and
                  interest  payments are  payable),  minus 100% of the principal
                  amount  of  the  outstanding  Series  Z  Bonds,  times  (b)  a
                  fraction,  the numerator of which is the  principal  amount of
                  the Series Z Bonds  being  redeemed  on such date  pursuant to
                  this  Section  and the  denominator  of  which  is 100% of the
                  principal amount of the then outstanding Series Z Bonds.

                  "Reinvestment  Yield"  shall  mean the rate  published  in the
                  weekly statistical release designated H.15(519) of the Federal
                  Reserve   System   under   the   caption   "U.S.    Government
                  Securities-Treasury  Constant  Maturities"  ("the  Statistical
                  Release")  (or if the  Statistical  Release is not  published,
                  such reasonably  comparable  index as may be designated by the
                  holders of 66-2/3% in aggregate principal amount of the Series
                  Z Bonds  outstanding)  for the maturity  corresponding  to the
                  remaining Average Term to Maturity of the Series Z Bonds as of
                  the date of redemption,  rounded to the nearest  month.  If no
                  maturity exactly  corresponds to such Average Term to Maturity
                  of the Series Z Bonds,  yields  for the terms just  before and
                  just after the Average  Term to Maturity of the Series Z Bonds
                  shall be  calculated  pursuant  to the  immediately  preceding
                  sentence and the Reinvestment  Yield will be interpolated from
                  such yields on a  straight-line  basis,  rounding  each of the
                  relevant  periods to the nearest  month.  For the  purposes of
                  calculating   the   Reinvestment   Yield,   the  most   recent
                  Statistical   Release   published   prior   to  the   date  of
                  determination hereunder shall be used.

                  "Average  Term to  Maturity"  shall  mean,  as of the  time of
                  determination   thereof,  the  number  of  years  obtained  by
                  dividing the Remaining  Dollar-Years  of the Series Z Bonds by
                  the then  outstanding  principal amount of the Series Z Bonds.
                  The term "Remaining  Dollar-Years of the Series Z Bonds" shall
                  mean the amount obtained by (1) multiplying the amount of each
                  of  the  then  remaining   scheduled  principal  and  interest
                  payments,  including the principal payments at final maturity,
                  by the number of years (calculated to the nearest one-twelfth)
                  which will  elapse  between the date of  determination  of the
                  Average Term to Maturity of the Series Z Bonds and the date of
                  each particular  scheduled  principal and interest payment and
                  (2) totaling all products obtained in (1).

         The  Trustee  may  require  the  Company to  certify to the  Trustee in
         writing the  calculation of the amount of any Make-Whole  Premium to be
         paid under Section 8.08 of the Restated Indenture and this Paragraph C;
         and without limiting the other indemnities provided to the Trustee, the
         Company shall  indemnify  and save the Trustee  harmless from any costs
         and  liabilities  incurred by the  Trustee in relying on the  Company's
         certification in making payment.


<PAGE>


                  D.  Notwithstanding  the  provisions  of Section  10.03 of the
         Restated Indenture,  in case of the redemption at any time of less than
         all the  outstanding  Series Z  Bonds,  the  particular  Bonds or parts
         thereof  to be  redeemed  shall be  selected  by the  Trustee  from the
         outstanding  Series Z Bonds not  previously  called for  redemption  as
         nearly as  practicable  pro rata  among the  registered  holders of the
         Series Z Bonds  according to the respective  principal  amounts of such
         Bonds, provided that the portions of the principal of Series Z Bonds at
         any time so selected for redemption in part shall be equal to $1,000 or
         an integral multiple thereof.

                  E. As a sinking fund for the retirement of Series Z Bonds,  so
         long as any of the Series Z Bonds  shall be  outstanding,  the  Company
         will deposit with the Trustee on May 28, 2001, and annually  thereafter
         on each May 28 to and  including  May 28,  2020  (each  such date being
         herein  sometimes  referred  to as a  "Series Z  Sinking  Fund  Payment
         Date"),  cash in an amount  sufficient for the redemption of $1,700,000
         aggregate  principal  amount of Series Z Bonds on May 29, 2001,  and of
         $1,665,000 aggregate principal amount of Series Z Bonds on May 29, 2002
         and on each next ensuing May 29 up to and  including  May 29, 2020 at a
         redemption price of 100% of the principal amount thereof,  together, in
         each case, with accrued  interest to the redemption date, and thereupon
         the Trustee shall apply such cash to the  redemption of said  aggregate
         principal  amount of the Bonds of said series on said next  ensuing May
         29. Any  redemption  of less than all of the  Series Z Bonds  shall not
         relieve  the  Company  of its  obligation  to redeem  Series Z Bonds in
         accordance with the requirements of this Paragraph E.

                  F.  Whenever  the Trustee  shall be  required to redeem  Bonds
         pursuant to the  provisions  of Paragraph E of this Section  3.02,  the
         Trustee shall,  on or before the 45th day prior to the Series Z Sinking
         Fund Payment Date, proceed to select for redemption,  from the Bonds of
         said  series,  in the manner  provided in  Paragraph D of this  Section
         3.02, the aggregate  principal  amount of Bonds of said series required
         by the  provisions of said Paragraph E to be redeemed by application of
         the  cash to be paid to the  Trustee  on said  Series  Z  Sinking  Fund
         Payment  Date,  and for and on behalf of the Company and in the name of
         the  Company,  the  Trustee  shall  give  notice,  as  required  by the
         provisions of Article Ten of the Restated Indenture,  of the redemption
         for the Series Z Sinking Fund of the Bonds so selected.  Subject to the
         provisions of this Section 3.02,  the redemption of such Bonds shall be
         effected in the manner and upon the terms  provided in Section 10.03 of
         the Restated  Indenture at the sinking fund redemption price of 100% of
         the principal  amount  thereof,  together,  in each case,  with accrued
         interest to the redemption date.



<PAGE>


                  G. The Company further  covenants that so long as any Series Z
         Bonds  shall  remain  outstanding,  the Company  will not,  without the
         consent  of the  holder  of each of the  Series  Z  Bonds,  revise  the
         original  schedule of sinking fund  payments as provided in Paragraph E
         of this  Section  3.02 or modify any of the  redemption  prices for the
         Series Z Bonds as provided in the form at Exhibit C. The  provisions of
         this  covenant can only be modified,  amended or otherwise  waived with
         approval  from  all of the  holders  of  Series  Z  Bonds  outstanding,
         excluding any Series Z Bonds held by the Company.

         Section 3.03. Series AA Bonds. First Mortgage Bonds, Series AA, 9%, due
September  1, 2003 (the  "Series  AA  Bonds"),  have  been duly  issued  and are
presently  outstanding  and secured by the Restated  Indenture in the  principal
amount  outstanding  of  $4,254,946.  The terms and  conditions of the Series AA
Bonds are as follows:

                  A. Attached to this Restated  Indenture as Exhibit D is a copy
         of the Bond form setting  forth the  interest  rate and other terms and
         conditions of the Series AA Bonds.

                  B. Reference in Exhibit D to Section 8.08 of the Indenture and
         the Make-Whole  Premium as provided in Section 1.01 of the Supplemental
         Indenture  dated as of June 1, 1991, now refers to Section 8.08 of this
         Restated Indenture and the following Paragraph C, respectively.

                  C. The  Series AA Bonds  shall not be  subject  to  redemption
         prior to  maturity;  provided,  the  Series  AA Bonds  are  subject  to
         redemption in whole or in part pursuant to Section 8.08 of the Restated
         Indenture  by  application  of monies  deposited  with the  Trustee  in
         certain  cases  for the  release  of  properties  from  the Lien of the
         Restated Indenture, all subject to the conditions and as more fully set
         forth in the Restated Indenture, at any time upon notice as required by
         the  above  Bond  form  at a  redemption  price  equal  to  100% of the
         principal  amount of the Series AA Bonds to be  redeemed,  plus accrued
         interest to the redemption date, plus an amount equal to the Make-Whole
         Premium as provided in this Paragraph C.

                  The "Make-Whole Premium" shall mean the product of the excess,
                  if any, of (a) the present  value as of the date of redemption
                  of all remaining  scheduled  principal and interest  payments,
                  including  the  principal  payment at final  maturity  and the
                  remaining  scheduled  interest payments on the Series AA Bonds
                  (determined by discounting on a semi-annual basis such amounts
                  at the  Reinvestment  Yield from the respective dates on which
                  such principal and interest payments are payable),  minus 100%
                  of the principal  amount of the  outstanding  Series AA Bonds,
                  times (b) a fraction,  the numerator of which is the principal
                  amount of the  Series  AA Bonds  being  redeemed  on such date
                  pursuant to this Section 3.03 and the  denominator of which is
                  100% of the principal amount of the then outstanding Series AA
                  Bonds.



<PAGE>


                  "Reinvestment  Yield"  shall  mean the rate  published  in the
                  weekly statistical release designated H.15(519) of the Federal
                  Reserve   System   under   the   caption   "U.S.    Government
                  Securities-Treasury  Constant  Maturities"  ("the  Statistical
                  Release")  (or if the  Statistical  Release is not  published,
                  such reasonably  comparable  index as may be designated by the
                  holders of 66-2/3% in aggregate principal amount of the Series
                  AA Bonds  outstanding)  for the maturity  corresponding to the
                  remaining  Average  Term to Maturity of the Series AA Bonds as
                  of the date of redemption, rounded to the nearest month. If no
                  maturity exactly  corresponds to such Average Term to Maturity
                  of the Series AA Bonds,  yields for the terms just  before and
                  just after the Average Term to Maturity of the Series AA Bonds
                  shall be  calculated  pursuant  to the  immediately  preceding
                  sentence and the Reinvestment  Yield will be interpolated from
                  such yields on a  straight-line  basis,  rounding  each of the
                  relevant  periods to the nearest  month.  For the  purposes of
                  calculating   the   Reinvestment   Yield,   the  most   recent
                  Statistical   Release   published   prior   to  the   date  of
                  determination hereunder shall be used.

                  "Average  Term to  Maturity"  shall  mean,  as of the  time of
                  determination   thereof,  the  number  of  years  obtained  by
                  dividing the Remaining  Dollar-Years of the Series AA Bonds by
                  the then outstanding  principal amount of the Series AA Bonds.
                  The term "Remaining Dollar-Years of the Series AA Bonds" shall
                  mean the amount obtained by (1) multiplying the amount of each
                  of  the  then  remaining   scheduled  principal  and  interest
                  payments,  including the principal payments at final maturity,
                  by the number of years (calculated to the nearest one-twelfth)
                  which will  elapse  between the date of  determination  of the
                  Average  Term to  Maturity of the Series AA Bonds and the date
                  of each particular  scheduled  principal and interest  payment
                  and (2) totaling all products obtained in (1).

         The  Trustee  may  require  the  Company to  certify to the  Trustee in
         writing the  calculation of the amount of any Make-Whole  Premium to be
         paid under Section 8.08 of the Restated Indenture and this Paragraph C;
         and without limiting the other indemnities provided to the Trustee, the
         Company shall  indemnify  and save the Trustee  harmless from any costs
         and  liabilities  incurred by the  Trustee in relying on the  Company's
         certification in making payment.

                  D.  Notwithstanding  the  provisions  of Section  10.03 of the
         Restated Indenture,  in case of the redemption at any time of less than
         all the  outstanding  Series AA Bonds,  the  particular  Bonds or parts
         thereof  to be  redeemed  shall be  selected  by the  Trustee  from the
         outstanding  Series AA Bonds not  previously  called for  redemption as
         nearly as  practicable  pro rata  among the  registered  holders of the
         Series AA Bonds according to the respective  principal  amounts of such
         Bonds,  provided  that the portions of the principal of Series AA Bonds
         at any time so selected for redemption in part shall be equal to $1,000
         or a multiple thereof.



<PAGE>


         Section 3.04. Series AB Bonds. First Mortgage Bonds,  Series AB, 8.30%,
due  September  1, 2024 (the  "Series AB Bonds"),  have been duly issued and are
presently  outstanding  and secured by the Restated  Indenture in the  principal
amount  outstanding  of  $45,000,000.  The terms and conditions of the Series AB
Bonds are as follows:

                  A. Attached to this Restated  Indenture as Exhibit E is a copy
         of the Bond form setting  forth the  interest  rate and other terms and
         conditions of the Series AB Bonds.

               B.  Reference  in  Exhibit  E to  Sections  8.05  and 8.08 of the
          Indenture  now  refers  to  Sections  8.05 and  8.08 of this  Restated
          Indenture.

                  C. The Series AB Bonds  shall be  redeemable  at the option of
         the Company at any time and from time to time,  in whole or in part, on
         and after September 1, 2004, in the manner and upon the notice provided
         in Article Ten of the Restated  Indenture,  at the redemption  price as
         set forth in the form of Series AB Bonds,  Exhibit E,  together in each
         case, with accrued interest to the redemption date.

                  D.  Notwithstanding  the  provisions  of Section  10.03 of the
         Restated Indenture,  in case of the redemption at any time of less than
         all of the outstanding  Series AB Bonds,  the particular Bonds or parts
         thereof  to be  redeemed  shall be  selected  by the  Trustee  from the
         outstanding  Series AB Bonds not  previously  called for  redemption as
         nearly as  practicable  pro rata  among the  registered  holders of the
         Series AB Bonds,  according to the respective principal amounts of such
         Bonds,  provided  that the portions of the principal of Series AB Bonds
         at any time so selected for redemption in part shall be equal to $1,000
         or a multiple thereof.

                  E. Notwithstanding that Section 8.05 of the Restated Indenture
         authorizes  the Company to request  the  Trustee to apply Trust  Monies
         toward the  redemption  of Bonds to be  selected  by the  Company,  the
         Company  does hereby  covenant  that the  Company  will not request the
         Trustee to apply any Trust  Monies to the  redemption  of the Series AB
         Bonds prior to September 1, 2004.

         Section 3.05. Series AC Bonds. First Mortgage Bonds,  Series AC, 8.06%,
due  February  1, 2010 (the  "Series AC  Bonds"),  have been duly issued and are
presently  outstanding  and secured by the Restated  Indenture in the  principal
amount  outstanding  of  $30,000,000.  The terms and conditions of the Series AC
Bonds are as follows:

               A. Attached to this Restated  Indenture as Exhibit F is a copy
         of the Bond form setting  forth the  interest  rate and other terms and
         conditions of the Series AC Bonds.

               B.  Reference  to  Section  8.08 of the  Indenture  now refers to
          Section 8.08 of this Restated Indenture.

               C. The Series AC Bonds shall not be  redeemable  at the option of
          the Company as a whole or in part at any time.

<PAGE>


                  D. The holders of the Series AC Bonds shall have the option to
         require the Company to redeem all or any portion (in integral multiples
         of $1,000) on February 1, 2002 (the  "Redemption  Day") at a Redemption
         Price  equal to 100% of the  principal  thereof  to be  redeemed,  plus
         interest  accrued,  if any, to the  Redemption  Day.  To exercise  such
         option,  the  Holder  shall  deliver  or cause to be  delivered  to the
         Trustee,  and the Trustee shall receive at its office in the Borough of
         Manhattan,  City of New York,  during the period beginning  December 1,
         2001 and ending at 5:00 P.M.  (New York City time) on December 31, 2001
         (or, if December 31, 2001 is not a business day, on the next succeeding
         business day), those Series AC Bonds which the Holder desires to redeem
         with the form  entitled  "Option to Require  Redemption  on February 1,
         2002" on the reverse side thereof duly completed.  Any such exercise of
         such option shall be  irrevocable.  All  questions as to the  validity,
         form,  eligibility  (including timely receipt) and acceptance of Series
         AC Bonds  for  redemption  will be  determined  by the  Company,  whose
         determination shall be final and binding.

                  E.  Notwithstanding  the  provisions  of Section  10.03 of the
         Restated Indenture,  in case of the redemption at any time of less than
         all of the outstanding  Series AC Bonds,  the particular Bonds or parts
         thereof  to be  redeemed  shall be  selected  by the  Trustee  from the
         outstanding  Series AC Bonds not  previously  called for  redemption as
         nearly as  practicable,  pro rata among the  registered  holders of the
         Series AC Bonds,  according to the respective principal amounts of such
         Bonds,  and provided  that the  portions of the  principal of Series AC
         Bonds at any time so selected for  redemption in part shall be equal to
         $1,000 or a multiple thereof.

                  F. Notwithstanding that Section 8.05 of the Restated Indenture
         authorizes  the Company to request  the  Trustee to apply Trust  Monies
         toward the  redemption  of Bonds to be  selected  by the  Company,  the
         Company  does hereby  covenant  that the  Company  will not request the
         Trustee to apply any Trust  Monies to the  redemption  of the Series AC
         Bonds prior to February 1, 2010.

         Section 3.06. Series AD Bonds. First Mortgage Bonds,  Series AD, 6.50%,
due July 15,  2002 (the  "Series  AD  Bonds"),  have been  duly  issued  and are
presently  outstanding  and secured by the Restated  Indenture in the  principal
amount  outstanding  of  $15,000,000.  The terms and conditions of the Series AD
Bonds are as follows:

                  A. Attached to this Restated  Indenture as Exhibit G is a copy
         of the Bond form setting  forth the  interest  rate and other terms and
         conditions of the Series AD Bonds.

                  B.  Reference  to  Sections  8.05 and 8.08 of the  Indenture
         now refers to Sections 8.05 and 8.08 of this Restated Indenture.

                  C. The  Series AD Bonds are not  redeemable  at the option of
         the Company as a whole or in part at any time.



<PAGE>


                  D.  Notwithstanding  the  provisions  of Section  10.03 of the
         Restated Indenture,  in case of the redemption at any time of less than
         all of the outstanding  Series AD Bonds,  the particular Bonds or parts
         thereof  to be  redeemed  shall be  selected  by the  Trustee  from the
         outstanding  Series AD Bonds not  previously  called for  redemption as
         nearly as  practicable,  pro rata among the  registered  holders of the
         Series AD Bonds,  according to the respective principal amounts of such
         Bonds,  and provided  that the  portions of the  principal of Series AD
         Bonds at any time so selected for  redemption in part shall be equal to
         $1,000 or a multiple thereof.

                  E. Notwithstanding that Section 8.05 of the Restated Indenture
         authorizes  the Company to request  the  Trustee to apply Trust  Monies
         toward the  redemption  of Bonds to be  selected  by the  Company,  the
         Company  does hereby  covenant  that the  Company  will not request the
         Trustee to apply any Trust  Monies to the  redemption  of the Series AD
         Bonds prior to July 15, 2002.

         Section  3.07.  Indemnity  of  Trustee.   Without  limiting  the  other
indemnities  provided to the Trustee,  the Company shall  indemnify and save the
Trustee  harmless from any liabilities and costs incurred by the Trustee arising
out of the making of the final payment when due of the principal owing on any of
the Series Z Bonds, Series AA Bonds, Series AB Bonds, Series AC Bonds and Series
AD Bonds without the surrender of such Bond to the Trustee.

         Section  3.08.  Registrar  of  Existing  Bonds.  The  Trustee is hereby
appointed  Registrar in respect of the Series Y Bonds, Series Z Bonds, Series AA
Bonds,  Series AB Bonds,  Series AC Bonds and Series AD Bonds, and the principal
corporate  trust office of the Trustee in the Borough of Manhattan,  the City of
New York,  hereby  designated  as the  office or agency of the  Company  in said
Borough  where  notices or  demands  in  respect of said  series of Bonds may be
served.

         Section  3.09.  Exchange  of  Bonds.  Subject  to  Section  2.12 of the
Restated  Indenture,  all definitive Series Y Bonds,  Series Z Bonds,  Series AA
Bonds,  Series  AB  Bonds,  Series AC Bonds  and  Series  AD Bonds  shall,  upon
surrender  thereof to the Trustee at its principal  office,  be exchangeable for
other Bonds of the same series,  respectively,  in  registered  form and in such
authorized denomination or denominations in the same aggregate principal amount,
as may be  requested  by the Holder  surrendering  the same.  The  Company  will
execute and the Trustee  shall  authenticate  and  deliver  registered  Series Y
Bonds,  Series Z Bonds,  Series AA Bonds,  Series AB Bonds,  Series AC Bonds and
Series AD Bonds whenever the same shall be required for any such exchange.

         Section 3.10. Compliance with Covenants.  The Company covenants that so
long as any Series Y Bonds,  Series Z Bonds,  Series AA Bonds,  Series AB Bonds,
Series AC Bonds and Series AD Bonds remain outstanding,  it will comply with the
covenants contained in Sections 9.14 and 9.18 of the Restated Indenture.




<PAGE>


                                  ARTICLE FOUR

                      AUTHENTICATION AND DELIVERY OF BONDS
                      UPON THE BASIS OF PROPERTY ADDITIONS

         Section 4.01.  Property Additions and Certifiable Net Earnings Defined.
The terms in this Section  mentioned  shall,  for all purposes of this  Restated
Indenture,  unless the context  shall  otherwise  require,  be taken to have the
meanings hereafter set forth.

                  A. The term "Property  Additions" shall mean real estate owned
         in  fee,  easements  and  rights  of way in  respect  of  real  estate,
         buildings, electric lines, reservoirs,  structures,  machinery, meters,
         equipment and other tangible properties, real, personal or mixed useful
         to the Company in the Electric  Utility  Business,  including  whole or
         undivided interests in any of such properties purchased, constructed or
         otherwise  acquired by the Company  subsequent to October 31, 1941; and
         the term "Property Additions" shall include

                           (1)  property  of  the  character   above   described
                  acquired by the Company by merger or  consolidation as well as
                  property purchased or constructed by the Company;

                           (2)      new plants and systems of the character
                  above described;

                           (3) all  construction  work in progress in the amount
                  as  recorded  on the books of  account  of the  Company  under
                  generally accepted accounting principles;

                           (4)  property  of  the  character   above   described
                  constructed  or acquired to replace an item of property  whose
                  retirement has been credited to plant account; and

                           (5) any Excepted  Property and other  property of the
                  Company that the Company  elects to be included under the Lien
                  of the Restated Indenture.

         If the Company shall, as provided in Article Thirteen, consolidate with
         or merge into or convey all or substantially all of the Trust Estate as
         an entirety to any other  corporation,  and such successor  corporation
         shall execute a  supplemental  indenture of the character  described in
         Paragraph A of Section  13.02,  all  property of the  character  herein
         described as Property Additions and owned by such successor corporation
         at the time of such consolidation, merger or conveyance, or acquired by
         it by  such  consolidation,  merger  or  conveyance  (excluding  Bonded
         Property  acquired  from the  Company),  shall be deemed to be Property
         Additions acquired by such successor corporation at the date upon which
         it became such successor corporation.


<PAGE>


                  Among other  properties not  constituting  Property  Additions
         under the foregoing provisions, the term "Property Additions" shall not
         be deemed to include

                           (6) any item of property  constructed  or acquired to
                  replace a similar item of property  whose  retirement  has not
                  been credited to plant account; or any property whose cost has
                  been  charged,  or  is  properly  chargeable,  to  repairs  or
                  maintenance or other operating expense account,  or whose cost
                  has not been charged, or is not properly chargeable,  to plant
                  account;

                           (7) any Excepted  Property  unless the Company elects
                  to cause the  Excepted  Property  to be subject to the Lien of
                  the Restated Indenture; or

                           (8) going  concern  value or good will, or franchises
                  or governmental permits granted to or acquired by the Company,
                  separate and distinct from the property operated thereunder.

                  B. The  "Certifiable  Net  Earnings"  of the  Company  for any
         particular  period shall be computed and  ascertained by deducting from
         the total of the  Gross  Operating  Revenues  of the  Company  for such
         period the following:

                           All  operating  expenses  and  other  proper  charges
                  (other  than those  charged to capital  accounts  or  surplus)
                  including  (a) all Federal,  state and local taxes (other than
                  taxes in respect of income or profits and other taxes  imposed
                  on or  measured  by  income  or  profits);  and  (b)  rentals,
                  insurance,  current repairs and maintenance; but excluding (i)
                  provisions   for   reserves   for   renewals,    replacements,
                  depreciation,  depletion  or  retirement  of property  (or any
                  expenditures  therefor),  or provisions  for  amortization  of
                  property,  (ii)  expenses or  provisions  for  interest on any
                  indebtedness  of the  Company,  for the  amortization  of debt
                  discount, premium, expense or loss on reacquired debt, for any
                  maintenance  and  replacement,  improvement or sinking fund or
                  other device for the  retirement of any  indebtedness,  or for
                  other  amortization,  (iii)  expenses  or  provisions  for any
                  nonrecurring  charge  to  income or to  retained  earnings  of
                  whatever  kind or nature  (including  without  limitation  the
                  recognition    of   expense   or   impairment   due   to   the
                  nonrecoverability  of  assets  or  expense),  whether  or  not
                  recorded as a  nonrecurring  charge in the Company's  books of
                  account,  and  (iv)  provisions  for any  refund  of  revenues
                  previously  collected  or  accrued by the  Company  subject to
                  possible refund.



<PAGE>


                  The Gross  Operating  Revenues of the Company shall consist of
         Gross  Utility  Operating  Revenues  of  the  Company,   plus  the  Net
         Non-Operating  Income of the Company. The term "Gross Utility Operating
         Revenues"  of the  Company  shall mean the  aggregate  gross  operating
         revenues derived from the operation of the utility  properties owned or
         leased by the  Company.  The term  "Net  Non-Operating  Income"  of the
         Company shall mean net income derived from but not necessarily  limited
         to the  following:  (a)  merchandising,  jobbing and contract work; (b)
         rental of  non-utility  properties;  (c) interest  and dividend  income
         including  dividends  from  Subsidiaries;  (d) allowance for funds used
         during construction;  and (e) other miscellaneous non-operating income;
         provided,  however,  that  profits or losses  resulting  from the sale,
         abandonment or other disposition of capital assets or securities of the
         Company  and the  Company's  equity in the  undistributed  earnings  of
         Subsidiaries, shall not be taken into account in the calculation of Net
         Non-Operating Income.

                  Subject  to the  foregoing  provisions  of this  Section,  all
         determinations of earnings pursuant to this Restated Indenture shall be
         made,  and all  balance  sheets and other  financial  statements  to be
         delivered hereunder shall be prepared,  in accordance with the practice
         prescribed by any regulatory  authority  having  jurisdiction  over the
         Company or other lawfully prescribed practice or, in the absence of any
         practice  prescribed  by  law,  in  accordance  with  sound  accounting
         practice  and,  where  consistent  with  such  practice  and  with  the
         foregoing provisions of this Section, on the same basis as that used in
         preparing the financial statements included in the annual report of the
         Company for the preceding fiscal year.

         Section 4.02.  Additional  Bonds Under Property  Additions.  Additional
Bonds of any series other than  Existing  Bonds may at any time and from time to
time be executed by the Company and delivered to the Trustee,  and thereupon the
same  shall,   subject  to  the   provisions  of  Sections  4.03  and  4.04,  be
authenticated  and delivered  under this Article by the Trustee upon the Written
Order of the  Company,  upon  receipt  by and  deposit  with the  Trustee of the
following:

                  A. A RESOLUTION OF THE BOARD,  requesting  the  authentication
         and delivery  pursuant to the provisions of this Article of a specified
         principal amount of Bonds of a designated series.

                  B. A PROPERTY ADDITIONS CERTIFICATE of the Company,  complying
         with the provisions of Section 1.02,  dated not more than 30 days prior
         to the application for the  authentication  and delivery of such Bonds,
         and signed also (except as to Clauses (2), (4), (5),  (7),  (11),  (12)
         and (14) of this Paragraph) by an Engineer,  setting forth in substance
         as follows:

                           (1) That  the  Company  has  acquired,  by  purchase,
                  construction or otherwise,  Property  Additions,  and giving a
                  brief description of such Property Additions and the principal
                  subdivisions  of  plant  account  to  which  the  cost of such
                  Property Additions has been charged.



<PAGE>


                           (2) That no part of said Property  Additions consists
                  of Bonded Property or is included in any other  application or
                  certificate  then pending  with the Trustee by virtue  whereof
                  said  Property  Additions  or any part  thereof  would  become
                  Bonded Property.

                           (3) Whether the Property Additions  described in said
                  Certificate  include  any  additional  tract or parcel of real
                  estate,  and if so, a  separate  description  of such tract or
                  parcel shall be included in the Certificate.

                           (4) Whether the Property Additions  described in said
                  Certificate,  or any part thereof,  were, at the time of their
                  acquisition  by the Company,  subject to a Prior Lien or Liens
                  existing  or placed  thereon at such time,  and,  if so,  such
                  Certificate shall also state:

                                    (a) the nature and extent of each such Prior
                           Lien and the  principal  amount  of all  indebtedness
                           secured thereby at said time;

                                    (b) that all such Prior  Liens  have,  at or
                           prior to the date of the Certificate,  become Prepaid
                           Liens or that all  indebtedness  secured  thereby has
                           been satisfied or discharged; and

                                    (c) the  aggregate  of the amounts  expended
                           (excluding   any  amounts   expended  in  respect  of
                           interest  or  premium)  by the  Company to cause such
                           Prior Liens to become Prepaid Liens or to procure the
                           satisfaction   and  discharge  of  the   indebtedness
                           secured thereby.

                           (5) That there is no outstanding  indebtedness of the
                  Company  for the  purchase  price or  construction  of, or for
                  labor,  wages or materials in connection with the construction
                  of, such Property  Additions which could become the basis of a
                  lien upon said  Property  Additions  prior to the lien of this
                  Restated  Indenture  (other  than a Prior  Lien  described  as
                  provided in the preceding  Clause (4)),  which, in the opinion
                  of the signers of said  Certificate,  might materially  impair
                  the security afforded thereby.

                           (6)  Whether  any  part  of  the  Property  Additions
                  described  in said  Certificate  consists of  property  which,
                  within six months prior to the date of acquisition  thereof by
                  the  Company,  has been used or  operated  by others  than the
                  Company in a business  similar to that in which it has been or
                  is to be used or  operated  by the  Company;  and, if so, such
                  part of said Property Additions shall be separately described,
                  and if such  part of said  Property  Additions  shall be shown
                  pursuant to Clause (9) of this  Paragraph to have a Fair Value
                  to the  Company at least equal to the greater of $25,000 or 1%
                  of the  aggregate  principal  amount  of all Bonds at the time
                  outstanding   hereunder,   than  an   Independent   Engineer's
                  Certificate  shall be required under Clause (1) of Paragraph C
                  of this Section and it shall be  requisite  for the Company to
                  comply with the provisions of Clause (13) of this Paragraph.


<PAGE>


                           (7)  Whether  any  part  of  the  Property  Additions
                  described in said  Certificate  was acquired from an Affiliate
                  of the Company;  and, if so, such Property  Additions shall be
                  separately described.

                           (8)  Whether  any  part  of  the  Property  Additions
                  described in said Certificate was acquired by the Company,  in
                  whole  or  in  part,   for  a   consideration   consisting  of
                  securities;  and,  if so,  such  Property  Additions  shall be
                  separately  described,  and  said  securities  shall  also  be
                  described.

                           (9)  The  Cost  to  the  Company  of  said   Property
                  Additions,  and also the Fair Value  thereof to the Company at
                  the date of such  Certificate  as determined by said Engineer;
                  and  stating  that  said Cost and said  Fair  Value  have been
                  computed and ascertained  with due regard to the provisions of
                  the  respective  definitions of those terms in Section 1.01 of
                  the Restated Indenture. If, by virtue of the provisions of the
                  foregoing  Clauses (6), (7) and/or (8) of this Paragraph,  any
                  of said Property  Additions  shall be separately  described in
                  said  Certificate,  the Cost and Fair Value to the  Company of
                  such Property  Additions shall be separately  stated;  and, in
                  the case of Property  Additions of the character  described in
                  Clauses  (6)  and/or  (7) of this  Paragraph,  said Fair Value
                  shall not  exceed  the  value of such  Property  Additions  as
                  stated in the certificate  filed with the Trustee  pursuant to
                  Paragraph C of this Section if such a certificate  is required
                  by the  provisions  of said  Paragraph  C;  and in the case of
                  Property Additions of the character described in Clause (8) of
                  this Paragraph, the portion of the Cost thereof represented by
                  securities  shall not exceed the Fair Value of such securities
                  as shown by the Appraiser's Certificate filed with the Trustee
                  pursuant to Paragraph D of this Section.

                           (10) That no part of the Property Additions described
                  in  said   Certificate   is  property  the   construction   or
                  acquisition  of which under the  provisions of Section 4.01 is
                  not permitted to be made the basis of the  authentication  and
                  delivery of Bonds under this Article.

                           (11) That none of said Property  additions is subject
                  to any lien,  charge or encumbrance  prior to the Lien of this
                  Restated   Indenture,   except  the  Prepaid  Liens  described
                  pursuant  to  Clause  (4)  of  this  Paragraph  and  Permitted
                  Encumbrances.

                           (12)  Whether  there is any unused  Additions  Credit
                  which the Company  desires to use,  in whole or in part,  as a
                  basis for the  authentication  and  delivery of the Bonds then
                  applied for, and if so, a statement of the entire amount which
                  the Company so desires to use,  of each such unused  Additions
                  Credit.



<PAGE>


                           (13) If,  but only if, it shall,  pursuant  to Clause
                  (6) of this  Paragraph,  become  requisite  for the Company to
                  comply  with the  provisions  of this Clause  (13),  then such
                  Property   Additions   Certificate  shall  state  whether  any
                  Property   Additions   previously   certified  in  a  Property
                  Additions  Certificate  filed with the Trustee during the then
                  current calendar year, as a basis for the  authentication  and
                  delivery of Bonds or the  withdrawal  of cash from the Trustee
                  or the release of property  from the Lien  hereof,  consist of
                  property  which,  within  six months  prior to the  respective
                  dates of acquisition thereof by the Company,  had been used or
                  operated by others  than the Company in a business  similar to
                  that in which they are to be used or operated by the  Company,
                  but as to which a Certificate of an  Independent  Engineer has
                  not previously been furnished to the Trustee; and, if so, such
                  previously certified Property Additions shall be specified and
                  a reference shall be made to the previous  Property  Additions
                  Certificate or  Certificates  whereby such Property  Additions
                  were  originally  certified  to the Trustee and there shall be
                  stated the aggregate Fair Value of such Property  Additions as
                  shown by such previous Property  Additions  Certificates,  and
                  also the excess, if any, of such aggregate Fair Value over the
                  aggregate  Fair Value of such  Property  Additions as shown by
                  the Independent  Engineer's  Certificate furnished pursuant to
                  Clause (2) of Paragraph C of this  Section  (such excess being
                  herein sometimes referred to as the "Fair Value Deficiency").

                           (14)  That  the  Company  is  not in  default  in the
                  performance  of  any  of  the  covenants  on  its  part  to be
                  performed under this Restated Indenture.

                  C. AN INDEPENDENT ENGINEER'S CERTIFICATE,  dated not more than
         60 days prior to the application for the authentication and delivery of
         such Bonds,  signed by an Independent  Engineer selected by the Company
         and  approved  by the  Trustee  in the  exercise  of  reasonable  care,
         complying with the provisions of Section 1.02,

                           (1)  stating  the Fair Value to the  Company,  in the
                  opinion  of  the  signer,  at the  date  of  said  Independent
                  Engineer's Certificate, of such part, if any, of such Property
                  Additions as shall have been separately  described pursuant to
                  Clause (6) of the  foregoing  Paragraph B, if, but only if, an
                  Independent  Engineer's  Certificate  shall be required  under
                  this  Clause (1) by virtue of the  provisions  of said  Clause
                  (6); and

                           (2)  stating  the Fair Value to the  Company,  in the
                  opinion of the signer,  of all previously  certified  Property
                  Additions,  if any,  which shall have been  specified  in said
                  Property Additions  Certificate pursuant to Clause (13) of the
                  preceding  Paragraph B, such Fair Value to be stated as of the
                  date of said Independent Engineer's Certificate; and



<PAGE>


                           (3)  stating  the Fair Value to the  Company,  in the
                  opinion  of  the  signer,  at the  date  of  said  Independent
                  Engineer's Certificate, of such part, if any, of such Property
                  Additions  as  shall  be  shown  by  said  Property  Additions
                  Certificate  to have been  acquired  from an  Affiliate of the
                  Company,  if such  Property  Additions  shall be shown by said
                  Property  Additions  Certificate  to  have  had a Cost  to the
                  Company in excess of $100,000,  and if the Fair Value  thereof
                  shall not have been  required to be stated under Clause (1) of
                  this Paragraph C.

                  No Independent  Engineer's Certificate shall be required to be
                  furnished  pursuant to this  Paragraph C unless  necessary  to
                  comply with the  requirements  of one or more of Clauses  (1),
                  (2) and (3) of this Paragraph C.

                  D. In case any  part of such  Property  Additions  is shown by
         said  Property  Additions  Certificate  to have  been  acquired  by the
         Company,  in  whole  or in  part,  for a  consideration  consisting  of
         securities,  a  CERTIFICATE,  complying  with the provisions of Section
         1.02,  signed by an Independent  Appraiser  selected by the Company and
         approved by the Trustee in the exercise of reasonable care, stating, in
         the opinion of the  signer,  the Fair Value of such  securities  at the
         time of the delivery  thereof as  consideration  for the acquisition of
         such part of such Property Additions.

                  E. A RETIREMENTS  CERTIFICATE  of the Company,  complying with
         the  provisions of Section  1.02,  dated not more than 30 days prior to
         the application for the  authentication  and delivery of such Bonds and
         signed also by an Engineer, setting forth:

                           (1) The aggregate amount of all Retirements up to the
                  date of said  certificate  which have not been  included  in a
                  previous  Retirements   Certificate  filed  with  the  Trustee
                  pursuant to this Section or Sections 5.03 or 8.03, and stating
                  that the  amount  of such  Retirements  has been  computed  as
                  required in the definition of "Retirements" in Section 1.01;

                           (2) A brief  description of such  Retirements and the
                  principal   subdivisions   of  plant  account  to  which  such
                  Retirements have been or will be credited; and

                           (3) The amounts (stated  separately  according to the
                  categories  specified in the definition of Retirement  Credits
                  in Section 1.01) of all Retirement  Credits which, as provided
                  in said definition,  may be applied against such  Retirements,
                  and stating that such Retirement Credits have been computed as
                  required by said definition.

                  F. A Net Earnings  Certificate of the Company,  complying with
         the  provisions of Section  1.02,  dated not more than 45 days prior to
         the  application  for the  authentication  and  delivery of such Bonds,
         certified by an Accountant, and setting forth:



<PAGE>


                           (1) The amount of the Certifiable Net Earnings of the
                  Company, for a period of 12 consecutive calendar months within
                  the 18 calendar months immediately preceding the date on which
                  the  application  for the  authentication  and delivery of the
                  Bonds  is made,  and  stating  separately  the  Gross  Utility
                  Operating  Revenues and the Net  Non-Operating  Income and the
                  operating  expenses of the Company and other  deductions  from
                  such Gross Utility  Operating  Revenues and Net  Non-Operating
                  Income  pursuant  to  Paragraph  B of Section  4.01,  with the
                  principal subdivisions thereof.

                           (2) The  aggregate  amount  of the  annual  "Interest
                  Charges on Bonds and Prior Lien  Debt" of the  Company,  which
                  term shall mean the annual interest charges on

                                    (a) all Bonds  outstanding  hereunder at the
                           date of said Certificate,  provided, however, that in
                           the case of any  Bonds  which  shall at such  time be
                           pledged  as  security  for  any  indebtedness  of the
                           Company, the amount of the annual interest charges on
                           such  pledged  Bonds shall be deemed to be either the
                           amount  of  the  annual  interest   charges  on  such
                           indebtedness  or the  amount of the  annual  interest
                           charges on such  pledged  Bonds,  whichever  shall be
                           greater; and

                                    (b)  all   Bonds  the   authentication   and
                           delivery of which is applied for in such  application
                           and in any other pending application; and

                                    (c) all indebtedness  secured by a lien upon
                           the Trust Estate,  or any part thereof,  prior to the
                           Lien of this Restated Indenture, other than a Prepaid
                           Lien;

                  provided,  however,  that there  shall be  excluded  from such
                  computation  the  annual  interest  charges  on any  Bonds  or
                  indebtedness  which  is  to be  paid,  redeemed  or  otherwise
                  retired,  or provision  for the  retirement  of which is to be
                  made, so that the same will cease to be  outstanding  prior to
                  or concurrently  with the  authentication  and delivery of the
                  Bonds then applied for.

                           (3) That the amount of the  Certifiable  Net Earnings
                  of the  Company  set forth as  provided  by Clause (1) of this
                  Paragraph  have  been at  least  equal  to two (2)  times  the
                  aggregate  amount of the annual Interest  Charges on Bonds and
                  Prior Lien Debt of the  Company as  provided  by Clause (2) of
                  this Paragraph.

                           (4) That  such  Certifiable  Net  Earnings  have been
                  computed and ascertained as provided in Paragraph B of Section
                  4.01.



<PAGE>


                  If the  annual  Interest  Charges on Bonds and Prior Lien Debt
         shall  be  increased  after  the  date  of  the  Earnings   Certificate
         hereinabove in this Paragraph described,  and before the authentication
         and  delivery of the Bonds then applied for, the Company will file with
         the  Trustee a new  Earnings  Certificate  showing  the  amount of said
         annual  Interest  Charges on Bonds and Prior Liens as so  increased--it
         being the  intention  hereof that no Bonds shall be  authenticated  and
         delivered  under  the  provisions  of this  Article,  unless  the ratio
         provided  for  by  Clause  (3)  of  this  Paragraph   shall  have  been
         established with respect to the aggregate amount of the annual Interest
         Charges on Bonds and Prior Liens of the Company as  constituted  at the
         time of the  authentication and delivery of the Bonds then applied for;
         but the Trustee shall,  subject to the provisions of Section 14.02,  be
         entitled to assume,  in the absence of such new  Earnings  Certificate,
         that the aggregate  amount of the annual Interest  Charges on Bonds and
         Prior  Lien  Debt of the  Company,  as  constituted  at the time of the
         authentication  and  delivery  of the Bonds then  applied  for,  are as
         stated in the Earnings Certificate filed with the Trustee as aforesaid.

                  The Earnings  Certificate provided for in this Paragraph shall
         be  certified  by an  Independent  Public  Accountant  selected  by the
         Company and  approved by the  Trustee,  in the  exercise of  reasonable
         care, if, but only if, the aggregate  principal  amount of the Bonds to
         be authenticated  and delivered on the basis thereof and of other Bonds
         authenticated  and delivered since the commencement of the then current
         calendar  year  (other  than  those with  respect to which an  Earnings
         Certificate  is not  required  or with  respect  to which  an  Earnings
         Certificate verified by an Independent Public Accountant has previously
         been furnished) is 10% or more of the aggregate principal amount of the
         Bonds at the time outstanding.

                  G. A  summary  certificate  and  computation  of  the  Company
         complying  with the  provisions  of Section 1.02,  determining  the Net
         Bondable  Additions in conformity  with the provisions of this Restated
         Indenture.

                  H. THE MORTGAGES, DEEDS, CONVEYANCES,  ASSIGNMENTS,  TRANSFERS
         and   INSTRUMENTS   OF  FURTHER   ASSURANCE  and  the   CERTIFICATE  or
         CERTIFICATES  and OTHER EVIDENCE,  if any,  specified in the Opinion of
         Counsel  as  provided  by  Clauses  (2),  (6) and (7) of the  following
         Paragraph I.

                  I. An OPINION or OPINIONS OF COUNSEL, complying with the
          provisions of Section 1.02:

                           (1) stating that the  instruments  which have been or
                  are  therewith   delivered  to  the  Trustee  conform  to  the
                  requirements   of  this  Restated   Indenture  and  constitute
                  sufficient  authority  under this  Restated  Indenture for the
                  Trustee to authenticate and deliver the Bonds applied for, and
                  that,  upon the basis of the  acquisition  of the Net Bondable
                  Additions described in and shown by said instruments delivered
                  to the Trustee pursuant to this Section, the Bonds applied for
                  may  be  lawfully   authenticated  and  delivered  under  this
                  Article;


<PAGE>


                           (2)  specifying the  mortgages,  deeds,  conveyances,
                  assignments,  transfers and instruments of further  assurance,
                  if any, which will be sufficient to subject to the direct lien
                  of this Restated Indenture the Property Additions described in
                  said  Certificate,  and stating that upon the  recordation  or
                  filing in the manner stated in such opinion of the instruments
                  so specified,  no further  recording or re-recording or filing
                  or refiling of this Restated Indenture or any other instrument
                  is required to maintain  the lien of this  Restated  Indenture
                  upon such  Property  Additions  as against all  creditors  and
                  subsequent purchasers,  or stating what further recordation or
                  filing  of  this  Restated   Indenture  or  any   supplemental
                  indenture is or will be necessary for that purpose; or stating
                  that said  Property  Additions  are then subject to the direct
                  Lien of this  Restated  Indenture  and that no such  mortgage,
                  deed, conveyance,  transfer or instrument of further assurance
                  is necessary for such purpose;

                           (3)  stating  that the  Company  has a good and valid
                  title to said Property Additions,  and that the same and every
                  part  thereof  is free and  clear of all  liens,  charges  and
                  encumbrances  prior  to the Lien of this  Restated  Indenture,
                  except  Permitted  Encumbrances,  and except  also the Prepaid
                  Liens,   if  any,   mentioned  in  said   Property   Additions
                  Certificate  and in such  case  that the  nature,  extent  and
                  amount  of such  Prepaid  Liens are  correctly  stated in said
                  certificate;

                           (4)  stating  that the  Company  has lawful  power to
                  acquire,  own and use said Property Additions in its business;
                  and,  to the  extent  that  any  franchise,  permit,  license,
                  right-of-way  or easement is necessary for the maintenance and
                  use of such Property Additions, that the Company, either alone
                  or  jointly  with  some  other  person,  lawfully  holds  such
                  franchises,  permits,  licenses,  rights-of-way and easements,
                  and that each such franchise, permit, license, right-of-way or
                  easement is in the opinion of such  counsel  adequate  for the
                  operations of the Company, and does not contain any provisions
                  materially prejudicial to the interests of the Bondholders;

                           (5) stating that, since the date of the last previous
                  Opinion of Counsel  filed with the  Trustee  pursuant  to this
                  Clause or Clause (4) of  Paragraph  E of Section  5.01 or 6.01
                  (or, in the case of the first such opinion,  since the date of
                  the execution and delivery  hereof),  no Bonded Property owned
                  by the Company has become subject to any then  subsisting lien
                  or encumbrance  (except Permitted  Encumbrances)  prior to the
                  Lien created by this  Restated  Indenture  for the security of
                  the Bonds whose  authentication  and  delivery is then applied
                  for;

                           (6)  specifying  the  certificate  or other  evidence
                  which  will  be  sufficient  to  show   compliance   with  the
                  requirements,  if any, of any  mortgage  recording  tax law or
                  other tax law  applicable  to the  issuance  of the Bonds then
                  applied   for,  or  stating  that  there  are  no  such  legal
                  requirements; and



<PAGE>


                           (7)  specifying  the  certificate  or other  evidence
                  which will be sufficient to show the  authorization,  approval
                  or consent of or to the  issuance  by the Company of the Bonds
                  then applied for, by any Federal,  State or other governmental
                  regulatory body or commission at the time having  jurisdiction
                  in the  premises,  or  stating  that  no  such  authorization,
                  approval or consent is required.

         Section 4.03.  Bonds  Limited by 70 Percent of Net Bondable  Additions.
Upon  compliance  with  the  provisions  of  Section  4.02,  the  Trustee  shall
authenticate  and deliver Bonds in an aggregate  principal amount up to, but not
exceeding seventy percent (70%) of the amount of Net Bondable Additions shown by
the summary certificate and computation filed pursuant to Paragraph G of Section
4.02.

         Section 4.04.  Additional Bonding Authority Based on Property Additions
Certified  Prior.  Notwithstanding  anything in this  Restated  Indenture to the
contrary,  upon the Written Order of the Company, the Trustee shall authenticate
and deliver  Bonds in an  aggregate  principal  amount up to, but not  exceeding
seventy  percent (70%) of fourteen and two-tenths  percent  (14.2%) of the total
amount of all Property  Additions  certified to the Trustee and used as Bondable
Additions for the issuance of Bonds during the period  beginning May 1, 1994 and
ending March 15, 1995.

         The Company  shall  furnish the  Trustee a  Certificate  of the Company
referencing  and  documenting  the  amount  of  Property  Additions   previously
certified and used as provided in the previous sentence,  a summary  certificate
and  computation  determining  the amount of Bonds that may be issued under this
Section  4.04 and an  Opinion  of Counsel as  required  by  Paragraph  I of this
Section 4.02; provided that subparagraph (1) thereunder shall refer to the basis
of this Section 4.04 rather than Net Bondable  Additions and subparagraphs  (2),
(3), (4) and (5) are not to be included in such opinion.


                                  ARTICLE FIVE

                      AUTHENTICATION AND DELIVERY OF BONDS
                        UPON DEPOSIT OF CASH WITH TRUSTEE

         Section  5.01.   Additional   Bonds  Authorized  by  Deposit  of  Cash.
Additional  Bonds of any series except  Existing  Bonds may at any time and from
time to time be  executed  by the  Company  and  delivered  to the  Trustee  for
authentication,  and  thereupon  the same shall,  subject to the  provisions  of
Section 5.02, be  authenticated  and delivered under this Article by the Trustee
upon the Written  Order of the  Company,  upon  receipt by and deposit  with the
Trustee of the following:

                  A. A RESOLUTION OF THE BOARD,  requesting  the  authentication
         and delivery  pursuant to the provisions of this Article of a specified
         principal amount of Bonds of a designated series.



<PAGE>


                  B. CASH equal to the aggregate  principal  amount of the Bonds
         the authentication and delivery of which is then applied for.

                  C. A CERTIFICATE OF THE COMPANY, complying with the provisions
         of  Section  1.02,  stating  that the  Company is not in default in the
         performance  of any of the covenants on its part to be performed  under
         this Restated Indenture.

                  D. THE CERTIFICATES and OTHER EVIDENCE,  if any, specified in
         the Opinion of Counsel as provided by Clauses (2) and (3) of the
         following Paragraph E.

                  E. An OPINION or OPINIONS OF COUNSEL, complying with the
         provisions of Section 1.02,

                           (1) stating that the  instruments  which have been or
                  are  therewith   delivered  to  the  Trustee  conform  to  the
                  requirements   of  this  Restated   Indenture  and  constitute
                  sufficient  authority  under this  Restated  Indenture for the
                  Trustee to authenticate and deliver the Bonds applied for, and
                  that,  upon the  deposit  of an  amount  of cash  equal to the
                  aggregate principal amount of the Bonds then applied for, such
                  Bonds may be lawfully  authenticated  and delivered under this
                  Article;

                           (2)  specifying  the  certificate  or other  evidence
                  which  will  be  sufficient  to  show   compliance   with  the
                  requirements,  if any, of any  mortgage  recording  tax law or
                  other tax law  applicable  to the  issuance  of the Bonds then
                  applied   for,  or  stating  that  there  are  no  such  legal
                  requirements;

                           (3)  specifying  the  certificate  or other  evidence
                  which will be sufficient to show the  authorization,  approval
                  or consent of or to the  issuance  by the Company of the bonds
                  then applied for, by any Federal,  State or other governmental
                  regulatory body or commission at the time having  jurisdiction
                  in the  premises,  or  stating  that  no  such  authorization,
                  approval or consent is required; and

                           (4) stating that, since the date of the last previous
                  Opinion of Counsel  filed with the  Trustee  pursuant  to this
                  Clause or Clause (5) of  Paragraph I of Section 4.02 or Clause
                  (4) of  Paragraph  E of Section  6.01 (or,  in the case of the
                  first  such  opinion,  since  the  date of the  execution  and
                  delivery hereof),  no Bonded Property owned by the Company has
                  become  subject  to any then  subsisting  lien or  encumbrance
                  (except Permitted  Encumbrances)  prior to the lien created by
                  this  Restated  Indenture  for the security of the Bonds whose
                  authentication and delivery is then applied for.

                  F. The NET  EARNINGS  CERTIFICATE  required by  Paragraph F of
         Section 4.02.



<PAGE>


         Section 5.02.  Amount of Bonds.  Upon compliance with the provisions of
Section 5.01 the Trustee  shall  authenticate  and deliver Bonds of an aggregate
principal amount up to, but not exceeding, the amount of the cash deposited with
the Trustee pursuant to Paragraph B of Section 5.01.

         Section  5.03.  Terms of Withdrawal of Cash.  Cash  deposited  with the
Trustee  under the  provisions  of Section  5.01 is in this  Restated  Indenture
sometimes  referred to as "Deposited  Cash";  and until the same shall have been
paid over by the Trustee upon the Written Order of the Company as hereinafter in
this Section  provided,  the Trustee shall hold all Deposited  Cash as a part of
the Trust Estate hereunder, subject, however, to the provisions of Section 8.11;
and, upon default in the payment of the principal of any of the Bonds,  when and
as the same shall  become due and  payable,  whether by the terms  thereof or by
declaration  or otherwise as herein  provided,  any  Deposited  Cash then in the
hands of the Trustee shall become  applicable to the purposes  specified in, and
in accordance with the provisions of, Section 11.10.

         At any time and from time to time,  whenever  the Company  shall become
entitled to the  authentication  and delivery of Bonds under the  provisions  of
Article Four, the Trustee,  upon receipt of a Resolution of the Board requesting
the payment of a specified  amount of Deposited  Cash,  and upon receipt also of
the instruments required to be delivered to the Trustee by said provisions (with
such appropriate  omissions and variations as are applicable to deposited Cash),
shall  pay upon the  Written  Order of the  Company,  and the  Company  shall be
entitled to withdraw,  Deposited Cash of an amount equal to the principal amount
of the  Bonds to whose  authentication  and  delivery  the  Company  would be so
entitled;  provided,  however,  that, upon the application to withdraw Deposited
Cash under the  provisions  of this  Section,  it shall not be necessary for the
Company to deliver to the Trustee (a) the Resolution  required by Paragraph A of
Section 4.02, or (b) any of the  certificates or parts of the Opinion of Counsel
referred to in Clauses (6) and (7) of Paragraph I of Section 4.02 or (c) the Net
Earnings Certificate required by Paragraph F of Section 4.02.


                                   ARTICLE SIX

                      AUTHENTICATION AND DELIVERY OF BONDS
              UPON RETIREMENT OF BONDS PREVIOUSLY ISSUED HEREUNDER

         Section 6.01. Additional Bonds Authorized by Retired Bonds.  Additional
Bonds of any series except  Existing Bonds may at any time and from time to time
be executed by the Company and delivered to the Trustee for authentication,  and
thereupon the same shall be  authenticated  and delivered  under this Article by
the Trustee upon the Written  Order of the Company,  upon receipt by and deposit
with the Trustee of the following:

                  A. A RESOLUTION OF THE BOARD,  requesting  the  authentication
         and delivery  pursuant to the provisions of this Article of a specified
         principal amount of Bonds of a designated series.


<PAGE>


                  B. BONDS  theretofore  authenticated  and delivered under this
         Restated Indenture,  matured or unmatured, in negotiable form, canceled
         or uncanceled,  thereto  belonging;  provided,  however,  that, for the
         purposes of this Article,  in lieu of depositing Bonds with the Trustee
         as aforesaid, the Company may deposit or deliver to the Trustee:

                           (1) CASH  sufficient  under the provisions of Section
                  1.05, among other provisions  hereof, to pay or redeem certain
                  Bonds theretofore authenticated and delivered hereunder, which
                  cash shall be irrevocably deposited in trust for such purpose;
                  and/or

                           (2) A CERTIFICATE OF THE COMPANY, stating

                                    (a)  that   cash   sufficient   under   such
                           provisions to pay or redeem certain Bonds theretofore
                           authenticated and delivered hereunder is then held by
                           the Trustee in trust  irrevocably  for such  purpose;
                           and/or

                                    (b)   that   certain    Bonds    theretofore
                           authenticated and delivered hereunder have been paid,
                           redeemed  or   otherwise   retired  and   theretofore
                           delivered to the Trustee.

                  C.       A CERTIFICATE OF THE COMPANY, complying with the
         provisions of Section 1.02, stating

                           (1) That the Company is not in default in the
                  performance  of any of the  covenants  on its part to be
                  performed under this Restated Indenture; and

                           (2) That  the  Bonds,  the  retirement  of which  (or
                  provision  therefor) is made the basis for the  authentication
                  and delivery of Bonds hereunder as in the preceding  Paragraph
                  B provided, do not include

                                    (a) any Bond,  the  retirement of which,  in
                           any  other   previous  or  pending   application   or
                           certificate,   has  been   made  the  basis  for  the
                           authentication   and   delivery  of  a  Bond  or  the
                           withdrawal  of Bonded  Cash from the Trustee or which
                           has  been  purchased,  paid,  redeemed  or  otherwise
                           retired out of Bonded Cash pursuant to the provisions
                           of Section 8.05 or Section 8.08; or



<PAGE>


                                    (b) any Bond  purchased,  paid,  redeemed or
                           otherwise   retired  through  the  operation  of  any
                           sinking, amortization,  improvement, renewal or other
                           analogous  fund,  if  any,  which  may  hereafter  be
                           created as provided in Section 2.05, but only if, and
                           to the extent  that,  the  supplemental  indenture or
                           other  instrument  creating such fund shall  preclude
                           the  authentication  and delivery of Bonds under this
                           Article upon the basis of the redemption, purchase or
                           other retirement of such Bond.

                  D.       The CERTIFICATES and OTHER EVIDENCE,  if any,
         specified in the Opinion of Counsel as provided by Clauses (2) and (3)
         of the following Paragraph E.

                  E.       An OPINION or OPINIONS OF COUNSEL, complying with
         the provisions of Section 1.02,

                           (1) stating that the  instruments  which have been or
                  are  therewith   delivered  to  the  Trustee  conform  to  the
                  requirements   of  this  Restated   Indenture  and  constitute
                  sufficient  authority  under this  Restated  Indenture for the
                  Trustee to authenticate and deliver the Bonds applied for, and
                  that (a) upon the basis of the deposit with the Trustee of the
                  Bonds and/or cash  deposited  and/or cash certified to be held
                  in trust, pursuant to Paragraph B of this Section,  and/or (b)
                  upon the basis of the payment,  redemption or other retirement
                  of Bonds as certified pursuant to Paragraph B of this Section,
                  the  Bonds  applied  for  may be  lawfully  authenticated  and
                  delivered under this Article;

                           (2)  specifying  the  certificate  or other  evidence
                  which  will  be  sufficient  to  show   compliance   with  the
                  requirements,  if any, of any  mortgage  recording  tax law or
                  other tax law  applicable  to the  issuance  of the Bonds then
                  applied   for,  or  stating  that  there  are  no  such  legal
                  requirements;

                           (3)  specifying  the  certificate  or other  evidence
                  which will be sufficient to show the  authorization,  approval
                  or consent  of or to the  issuance  of the Bonds then  applied
                  for, by an  Federal,  State or other  governmental  regulatory
                  body or  commission  at the time  having  jurisdiction  in the
                  premises,  or stating that no such authorization,  approval or
                  consent is required; and

                           (4) stating that, since the date of the last previous
                  Opinion of Counsel  filed with the  Trustee  pursuant  to this
                  Clause or Clause (5) of  Paragraph I of Section 4.02 or Clause
                  (4) of  Paragraph  E of Section  5.01 (or,  in the case of the
                  first  such  opinion,  since  the  date of the  execution  and
                  delivery hereof),  no bonded Property owned by the Company has
                  become  subject  to any then  subsisting  lien or  encumbrance
                  (except Permitted Encumbrances),  prior to the lien created by
                  this  Restated  Indenture  for the security of the Bonds whose
                  authentication and delivery is then applied for.

                  F.       THE NET EARNINGS CERTIFICATE required by Paragraph F
         of Section 4.02 unless either



<PAGE>


                           (i) the Bonds,  the retirement of which (or provision
                  therefor)  is  made  the  basis  for  the  authentication  and
                  delivery of the Bonds then  applied  for,  bear  interest at a
                  higher  rate  than the Bonds  the  authentication  of which is
                  sought,  provided however, that nothing in this item (i) shall
                  be deemed to  excuse  the  Company  from  delivering  said Net
                  Earnings  Certificate if said first  mentioned Bonds shall not
                  have been  issued by the  Company or shall  have  ceased to be
                  outstanding  hereunder  during any period or periods  prior to
                  the authentication and delivery of the Bonds then applied for,
                  and during said period or periods a Net  Earnings  Certificate
                  shall  have been  delivered  to the  Trustee  pursuant  to any
                  provision  of this  Restated  Indenture  in which  the  annual
                  interest  requirements  on any such Bond  which  shall have so
                  ceased  to be  outstanding  shall not have  been  included  in
                  Interest Charges on the Secured Bonded Debt of the Company, or

                           (ii) the payment date or the redemption  date of said
                  first  mentioned Bonds (if they have been paid or have been or
                  are to be  redeemed)  or the  date of their  surrender  to the
                  Trustee  (if  they  have  been  acquired  by the  Company  and
                  surrendered  to the Trustee) is less than three years prior to
                  the maturity date stated in such Bonds.

         Section 6.02.  Amount of Bonds Equal to Retired Bonds.  Upon compliance
with the provisions of Section 6.01, the Trustee shall  authenticate and deliver
Bonds of an aggregate  principal amount up to, but not exceeding,  the principal
amount of the  Bonds  deposited  with the  Trustee,  and/or  paid,  redeemed  or
otherwise  retired,  and/or  for  whose  payment  or  redemption  cash  has been
deposited with or is held in trust by the Trustee,  as in Paragraph B of Section
6.01 provided.

         Section  6.03.  Canceled  Bonds. Every Bond delivered uncanceled to the
Trustee,  and on the  basis of which an  additional  Bond is  authenticated  and
delivered under this Article, shall be immediately canceled.

                                  ARTICLE SEVEN

                          RELEASE OF MORTGAGED PROPERTY

          Section 7.01. Company's Permitted Activities.  The Company, unless an
Event of Default shall have happened and shall not have been remedied,


<PAGE>


                  (a) shall be  entitled to possess,  manage,  operate,  use and
         enjoy and to remain in the actual and undisturbed possession of all its
         properties   (other  than  bonds,   certificates  of  stock  and  other
         securities  and cash  deposited  or required to be  deposited  with the
         Trustee)  and to  receive,  take and use the rents,  income and profits
         thereof,  to use and consume any fuel,  oil and similar  materials  and
         supplies  consumable in the operation of any  properties of the Company
         and to use,  consume,  sell or dispose of any  electricity,  materials,
         supplies or merchandise  held by the Company for the purpose of sale in
         the ordinary course of business,  all as if this Restated Indenture had
         not been made;

                  (b) may, without  obtaining any release and without  obtaining
         the consent of the Trustee, sell or otherwise dispose of, free from the
         Lien of this Restated Indenture,  any machinery,  equipment,  tools and
         appliances  which may have become  obsolete,  inadequate or worn-out or
         otherwise  unsuitable for use in the business of the Company, and apply
         the  proceeds  thereof  toward the  replacement  of the same with other
         machinery,  equipment, tools and appliances of at least equal value and
         efficiency;

                  (c) may, without the consent of the Trustee, alter, add to and
         repair its buildings,  structures,  machinery, equipment and appliances
         appertaining  to or  used in  connection  with  the  works,  plants  or
         transmission or distribution systems of the Company;

                  (d) shall be  entitled  to receive and collect for its own use
         all dividends  paid on shares of stock of any  corporation  held by the
         Trustee  hereunder  which are paid in cash out of the earned surplus or
         net  profits  of  the  issuing   corporation   and  all  interest  upon
         obligations  or   indebtedness  of  any  person  held  by  the  Trustee
         hereunder;  and, in case such shares of stock shall be transferred into
         the name of the Trustee or of its nominee or nominees, the Trustee from
         time to time shall  execute and deliver  upon the Written  Order of the
         Company suitable  assignments and orders in favor of the Company or its
         nominee named in such order for the payment of such cash  dividends and
         interest,  and as the date of their maturity  approaches  shall deliver
         upon a like  order  any and all  coupons  representing  such  interest,
         provided,  however,  and it is  hereby  declared  and  agreed  that the
         Company  shall not be entitled to receive and the Trustee shall not pay
         over to it,

                           (i)      the principal of any obligation or
                  indebtedness at the time held by the Trustee hereunder, or

                           (ii) any dividend upon any share of stock at the time
                  held by the Trustee  hereunder  other than a dividend  paid in
                  cash out of the earned  surplus or net  profits of the issuing
                  corporation, or

                           (iii) any sum paid upon liquidation or dissolution or
                  reduction of capital or  redemption,  upon any  obligation  or
                  indebtedness or share of stock at the time held by the Trustee
                  hereunder, and



<PAGE>


         the  Company  shall  also have the  right,  except as herein  expressly
         limited,  to vote and/or give  consents  with  respect to all shares of
         stock held by the  Trustee  hereunder,  and from time to time,  in case
         such shares of stock shall have been  transferred  into the name of the
         Trustee or of its nominee or nominees,  the  Trustee,  upon the Written
         Request  of the  Company,  shall  execute  and  deliver  or cause to be
         executed  and  delivered  to the Company or its  nominee  named in such
         Written Request  appropriate powers of attorney or proxies to vote such
         stock or to execute a waiver or consent or certificate  with respect to
         such stock,  for such  purpose or purposes as may be  specified in such
         request,  except  that  each  such  power of  attorney  or proxy may be
         limited so as to provide in effect that the powers thereby conferred to
         not include any power to vote for or to authorize or consent to any act
         or thing inconsistent with this Restated Indenture.

         Section 7.02.  Conditions of Release of Property.

                  A.  Definition  of  "Fair  Value."  For the  purposes  of this
         Section  7.02,  "Fair  Value" when  applied to property is its value as
         determined without deduction for any Prior Liens upon such property and
         without deduction to reflect that such property may be of value only to
         the Company or another  operator of the Trust Estate as a whole,  which
         value  may  be  determined  without  physical   inspection  by  use  of
         accounting  and  engineering  records and other data  maintained by, or
         available to, the Company.

                  B.  Release  Based on Bond  Ratio.  Unless an Event of Default
         shall have occurred and be continuing,  upon receipt of a Written Order
         of the  Company  requesting  the  release  of any of the  Trust  Estate
         pursuant to this  Paragraph B, the Trustee shall execute and deliver to
         the Company the  documents  and  instruments  described in Paragraph B,
         releasing  from the Lien of this  Restated  Indenture  any of the Trust
         Estate if the Fair  Value of all of the  Trust  Estate  (excluding  the
         Trust  Estate to be  released  but  including  any  Trust  Estate to be
         acquired  by  the  Company  with  the  proceeds  of,  or  otherwise  in
         connection  with, such release)  stated on the Engineer's  certificates
         delivered  pursuant  to Clause  (2) of  Paragraph  B and  Clause (3) of
         Paragraph  B, equals or exceeds an amount  equal to  twenty-fourteenths
         (20/14) of the aggregate  principal amount of Bonds  outstanding at the
         date of such Written Order of the Company as stated on the  Certificate
         of the Company  delivered  pursuant to Clause (4) of  Paragraph B, upon
         receipt by the Trustee of:

                           (1) appropriate  documents and instruments  releasing
                  without  recourse  the  interest  of the  Trustee in the Trust
                  Estate to be released, and describing in reasonable detail the
                  Trust Estate to be released;



<PAGE>


                           (2) an Engineer's certificate, dated the date of such
                  Written Order of the Company,  stating (i) that the signers of
                  such Engineer's  certificate  have examined the Certificate of
                  the Company delivered pursuant to Clause (4) of Paragraph B in
                  connection  with such  release,  (ii) the Fair  Value,  in the
                  opinion of the signer of such Engineer's  certificate,  of (A)
                  all of the  Trust  Estate,  and (B)  the  Trust  Estate  to be
                  released,  in each  case as of a date  not  more  than 90 days
                  prior to the date of such Written  Order of the  Company,  and
                  (iii) that in the judgment of such  signers,  such release (A)
                  will not materially  adversely  affect the Company's  Electric
                  Utility  Business,  and (B) will not impair the security under
                  this Restated  Indenture in  contravention  of the  provisions
                  hereof;

                           (3) in case any Property Additions are being acquired
                  by  the  Company   with  the  proceeds  of,  or  otherwise  in
                  connection  with,  such release,  an  Engineer's  certificate,
                  dated the date of such Written Order of the Company, as to the
                  Fair  Value,  as of a date not more than 90 days  prior to the
                  date of such  Written  Order of the  Company,  of the Property
                  Additions being so acquired (and if within six months prior to
                  the  date  of  acquisition  by the  Company  of  the  Property
                  Additions being so acquired, any property included within such
                  Property  Additions  had been used or  operated by others than
                  the Company in a business similar to that in which it has been
                  or is to be used or  operated  by the  Company,  and the  Fair
                  Value thereof to the Company,  as set forth in such Engineer's
                  certificate,  is  not  less  than  one  percent  (1%)  of  the
                  aggregate  principal  amount of Bonds then  outstanding,  such
                  certificate shall be an Independent Engineer's Certificate);

                           (4) a Certificate  of the Company,  dated the date of
                  such  Written  Order  of the  Company,  stating  (i)  that the
                  aggregate principal amount of Bonds outstanding at the date of
                  such Written  Order of the Company,  and stating that the Fair
                  Value of all of the Trust Estate  (excluding  the Trust Estate
                  to be released  but  including  any  Property  Additions to be
                  acquired by the Company  with the proceeds of, or otherwise in
                  connection  with,  such  release)  stated  on  the  Engineer's
                  certificate filed pursuant to Clause (2) of Paragraph B equals
                  or exceeds an amount  equal to  twenty-fourteenths  (20/14) of
                  such  aggregate  principal  amount,  and  (ii)  that,  to  the
                  knowledge of the signer,  no Event of Default has occurred and
                  is continuing; and

                           (5)  an  Opinion  of  Counsel   complying   with  the
                  provisions of Section 1.02 stating that the instruments  which
                  have  been or are  delivered  to the  Trustee  conform  to the
                  requirements   of  this  Restated   Indenture  and  constitute
                  sufficient  authority  under this  Restated  Indenture for the
                  Trustee to execute and deliver the release requested.



<PAGE>


                  C. Release up to a Limited  Amount.  If the Company is unable,
         or elects not, to obtain, in accordance with the preceding Paragraph B,
         the  release  from the Lien of this  Restated  Indenture  of any of the
         Trust  Estate,  unless an Event of Default  shall have  occurred and be
         continuing,  upon receipt of a Written Order of the Company  requesting
         the release of any of the Trust  Estate  pursuant to this  Paragraph C,
         the Trustee  shall execute and deliver to the Company the documents and
         instruments  described in Clause (1) of Paragraph C releasing  from the
         Lien of this  Restated  Indenture  any of the Trust  Estate if the Fair
         Value  thereof,  as  stated  on the  Engineer's  certificate  delivered
         pursuant to Clause (2) of  Paragraph C is less than one percent (1%) of
         the aggregate principal amount of Bonds outstanding at the date of such
         Written Order of the Company, provided that the aggregate Fair Value of
         all Trust Estate  released  pursuant to this  Paragraph C, as stated on
         all Engineer's  certificates  filed pursuant to this Paragraph C in any
         period of 12  consecutive  calendar  months which  includes the date of
         such Engineer's certificate, shall not exceed three percent (3%) of the
         aggregate  principal  amount of Bonds  outstanding  at the date of such
         Written  Order of the  Company  as  stated  in the  Certificate  of the
         Company  delivered  pursuant to Clause (3) of Paragraph C, upon receipt
         by the Trustee of:

                           (1) appropriate  documents and instruments  releasing
                  without  recourse  the  interest  of the  Trustee in the Trust
                  Estate to be released, and describing in reasonable detail the
                  Trust Estate to be released;

                           (2) an Engineer's certificate, dated the date of such
                  Written  Order of the Company,  stating (i) that the signer of
                  such  Engineer's  certificate  has examined the Certificate of
                  the Company delivered pursuant to Clause (2) of Paragraph C in
                  connection  with such  release,  (ii) the Fair  Value,  in the
                  opinion of the signers of such Engineer's certificate, of such
                  Trust Estate to be released as of a date not more than 90 days
                  prior to the date of such Written  Order of the  Company,  and
                  (iii) that in the judgment of such  signers,  such release (A)
                  will not materially  adversely  affect the Company's  Electric
                  Utility  Business and (B) will not impair the  security  under
                  this Restated  Indenture in  contravention  of the  provisions
                  hereof;

                           (3) a Certificate  of the Company,  dated the date of
                  such Written  Order of the Company,  stating (i) the aggregate
                  principal  amount  of  Bonds  outstanding  at the date of such
                  Written  Order of the  Company,  (ii) that one percent (1%) of
                  such aggregate  principal amount exceeds the Fair Value of the
                  Trust Estate for which such release is applied for, (iii) that
                  three percent (3%) of such aggregate  principal amount exceeds
                  the aggregate Fair Value of all Trust Estate released from the
                  Lien of this Restated  Indenture pursuant to this Paragraph C,
                  as shown by all  Engineer's  certificates  filed  pursuant  to
                  Clause (2) of  Paragraph  C in such  period of 12  consecutive
                  calendar  months,  and  (iv)  that,  to the  knowledge  of the
                  signer,  no Event of Default has occurred  and is  continuing;
                  and

                           (4)  an  Opinion  of  Counsel   complying   with  the
                  provisions of Section 1.02 stating that the instruments  which
                  have  been or are  delivered  to the  Trustee  conform  to the
                  requirements   of  this  Restated   Indenture  and  constitute
                  sufficient  authority  under this  Restated  Indenture for the
                  Trustee to execute and deliver the release requested.



<PAGE>


                  D. Release by Deposit of Cash,  Purchase Money  Obligations or
         Property Additions. If the Company is unable, or elects not, to obtain,
         in accordance with Paragraphs B or C, the release from the Lien of this
         Restated  Indenture  of any of the  Trust  Estate,  unless  an Event of
         Default shall have occurred and be continuing, upon receipt and deposit
         of a Written Order of the Company  requesting the release of any of the
         Trust Estate pursuant to this Paragraph D and those items at Clause (2)
         in this  Paragraph  D, the  Trustee  shall  execute  and deliver to the
         Company  the  documents  and  instruments  described  in Clause  (1) of
         Paragraph  D releasing  from the Lien of this  Restated  Indenture  the
         Trust Estate described in the Written Order of the Company.

                           (1) appropriate  documents and instruments  releasing
                  without  recourse  the  interests  of the Trustee in the Trust
                  Estate to be released, and describing in reasonable detail the
                  Trust Estate to be released;

                           (2) Cash in an  amount  equal to the  greater  of the
                  following items (i) and (ii):

                                    (i)     the Fair Value of the property to
                           be released, or

                                    (ii)  the  consideration  received  or to be
                           received by the Company  therefor  (valuing  purchase
                           money  obligations  at  their  principal  amount  and
                           property  received  in  exchange at its Fair Value as
                           stated in said certificate),

         provided,  however,  that in lieu of all or any part of such cash,  the
         Company  shall have the right to deposit with or deliver to the Trustee
         any of the following:

                           (a) Purchase Money Obligations  secured by a mortgage
                  on the  property to be  released,  or a portion  thereof,  not
                  exceeding in principal  amount  seventy  percent  (70%) of the
                  Fair Value (as  certified  as above set forth) of the property
                  covered by such purchase money mortgage,  which purchase money
                  obligations and the mortgages securing the same, shall be duly
                  assigned  to the  Trustee and shall be received by the Trustee
                  at the  principal  amount  thereof in lieu of cash;  provided,
                  however,  that the Trustee  shall not accept any such purchase
                  money  obligations  in lieu of cash as provided in this Clause
                  if thereby  the  aggregate  principal  amount of all  purchase
                  money  obligations  received by the  Trustee  pursuant to this
                  Clause  and at the time  held by the  Trustee  would  equal or
                  exceed 10  percent of the  principal  amount of all Bonds then
                  outstanding hereunder.

<PAGE>
                           (b) A Certificate of the trustee or other holder of a
                  Prior Lien on all or any part of the  property to be released,
                  stating  that a  specific  amount of cash  and/or a  specified
                  principal   amount  of  purchase  money   obligations  of  the
                  character  described  in  subparagraph  (a) of this Clause and
                  representing proceeds of the sale of such property,  have been
                  deposited  with such trustee or other  holder  pursuant to the
                  requirements of such Prior Lien, provided,  however,  that the
                  aggregate of the cash and principal  amount of purchase  money
                  obligations  so  certified  at any one time  shall in no event
                  exceed  the  principal  amount of the Prior  Lien  Obligations
                  outstanding  thereunder,  less any  amounts  then  held by the
                  trustee or other  holder of such Prior Lien other than for the
                  payment or  redemption  of Prior Lien  Obligations  not deemed
                  outstanding  under the  provisions of Section  4.01;  and such
                  certificate  shall be  received by the Trustee in lieu of cash
                  equal to the cash and the  principal  amount  of the  purchase
                  money  obligations  so certified to have been  deposited  with
                  such trustee or other holder of such Prior Lien.

                           (c) The Certificates,  Opinions and Other Instruments
                  which the Company would be required to furnish to the Trustee,
                  upon an  application  for the  authentication  and delivery of
                  Bonds on the basis of Property  Additions  under Article Four,
                  but  with  the  following  variations  and  omissions  of  the
                  instruments specified in Section 4:02:

                                    (i) There shall be an  additional  statement
                           in Clause (2) of the Property Additions  Certificate,
                           to the effect that no part of the Property  Additions
                           therein  described has in any other  previous or then
                           pending  application  been  made  the  basis  for the
                           release  of any  Unbonded  Property  from the lien of
                           this Restated  Indenture or for the withdrawal of any
                           Unbonded Cash from the Trustee or from the trustee or
                           other holder of a Prior Lien, or to repair,  replace,
                           or restore insured Unbonded Property which shall have
                           been  damaged or  destroyed  but the  proceeds of the
                           insurance on which shall not have been required to be
                           paid to the  Trustee  pursuant to the  provisions  of
                           Section 9.09;

                                    (ii)  It  shall  not be  necessary  for  the
                           Company  to  deliver to the  Trustee  the  Resolution
                           required by Paragraph A, the Retirements  Certificate
                           required by Paragraph E, the Net Earnings Certificate
                           required by Paragraph  F, or any of the  certificates
                           or parts of the  Opinion  of Counsel  referred  to in
                           Clauses (6) and (7) of Paragraph I of Section 4.02;

                                    (iii) The  Summary  Certificate  required by
                           Paragraph  G of  Section  4.02  shall show only Gross
                           Bondable  Additions  and may  include  any  Additions
                           Credit; and

<PAGE>
                                    (iv)  If  no  part  of  the  property  to be
                           released is Bonded  Property and such property or any
                           part thereof is subject to a Prior Lien, the Property
                           Additions  then so  certified  may be  subject to the
                           same  Prior   Lien,   and  the   Property   Additions
                           Certificate  required by  Paragraph B of Section 4.02
                           and the Opinion of Counsel required by Paragraph I of
                           Section 4.02 may be modified accordingly.

                           Such  Certificates,  Opinions  and Other  Instruments
                  shall be  received  by the  Trustee  in lieu of cash up to the
                  amount of the Gross  Bondable  Additions  so  certified to the
                  Trustee.

                           (3) An Opinion or Opinions of Counsel, complying with
                  the provisions of Section 1.02,

                                    (a) stating that the instruments  which have
                           been  or  are  therewith  delivered  to  the  Trustee
                           conform  to  the   requirements   of  this   Restated
                           Indenture and constitute  sufficient  authority under
                           this  Restated  Indenture  for the Trustee to execute
                           and deliver the release requested, and that, upon the
                           basis  of  the  cash,   purchase  money  obligations,
                           certificates,    opinions   and   other   instruments
                           delivered  to the Trustee  pursuant to Paragraph D of
                           this Section,  the property so sold or disposed of or
                           contracted  to be sold or disposed of may lawfully be
                           released  from  the lien of this  Restated  Indenture
                           pursuant to the provisions of this Section;

                                    (b)   stating   that  the   purchase   money
                           obligations,  if any,  delivered to the Trustee or to
                           the trustee or other holder of a Prior Lien  pursuant
                           to  subparagraph  (a) of Clause (2) of Paragraph D of
                           this  Section  are  valid  obligations  and are  duly
                           secured   by  a   valid   purchase   money   mortgage
                           constituting  a direct lien upon all the  property to
                           be released,  or upon the portion thereof  described,
                           free  and  clear  of  all  prior  liens,  charges  or
                           encumbrances, except any Prior Liens or other charges
                           or  encumbrances  prior to the lien of this  Restated
                           Indenture  which may have  existed on the property to
                           be  released  immediately  prior to such  release and
                           that the  assignment  of any mortgage  securing  such
                           purchase money obligations is valid and in recordable
                           form; and

<PAGE>

                                    (c) in case, pursuant to subparagraph (a) of
                           Clause (2) of Paragraph D of this  Section,  any cash
                           or purchase money  obligations  shall be certified to
                           have been  deposited with the trustee or other holder
                           of a Prior  Lien,  stating  that the  property  to be
                           released,  or a  specified  portion  thereof,  is  or
                           immediately  before  such  sale  or  disposition  was
                           subject to such  Prior Lien and that such  deposit is
                           required by such Prior Lien.

         Section 7.03. Release of Property Upon Eminent Domain.  Should any part
of the Trust Estate be taken by the  exercise of the power of eminent  domain or
should any  State,  municipality  or other  governmental  authority  at any time
exercise  any  right  which it may then have to  purchase  any part of the Trust
Estate,  the Company,  forthwith upon receipt,,  shall deposit the award for any
property so taken by eminent  domain  and/or the  proceeds of any such  purchase
with the Trustee, or, to the extent required,  in the Opinion of Counsel, by the
terms of a Prior Lien on all or any part of any property so taken or  purchased,
with the trustee or other  holder of such Prior  Lien.  In the event of any such
taking  or  purchase,  the  Trustee  shall  release  the  property  so  taken or
purchased, but only upon receipt by and deposit with the Trustee of:

                  A. A RESOLUTION OF THE BOARD, requesting such release and
         describing the property so to be released.

                  B. A CERTIFICATE OF THE COMPANY, complying with the provisions
         of Section  1.02,  stating that such property has been taken by eminent
         domain and the amount of the award therefor,  or that said property has
         been purchased by a State, municipality or other governmental authority
         pursuant to a right  vested in it to  purchase  such  property  and the
         amount of the proceeds of such purchase,  and also stating  whether any
         of such property was Bonded Property.

                  C.  The  AWARD  for  said  property  or the  PROCEEDS  of such
         purchase;  provided,  however, that, in lieu of all or any part of such
         award or proceeds,  the Company  shall have the right to deliver to the
         Trustee a CERTIFICATE of the trustee or other holder of a Prior Lien on
         all or any part of the property to be released, stating that said award
         or proceeds,  or such specified  part thereon,  has been deposited with
         such trustee or other holder pursuant to the requirements of such Prior
         Lien.

                 D. AN OPINION OF COUNSEL,  complying  with the  provisions
         of Section 1.02, stating

                           (1) that such  property  has been  duly  taken by the
                  exercise  of the  power of  eminent  domain,  or has been duly
                  purchased  by a  State,  municipality  or  other  governmental
                  authority  in the exercise of a right which it had to purchase
                  such property, and that the instruments which have been or are
                  therewith delivered to the Trustee conform to the requirements
                  of this Restated Indenture and constitute sufficient authority
                  under this Restated  Indenture for the Trustees to execute and
                  deliver the release requested;



<PAGE>


                           (2) that the amount of the award for the  property so
                  taken by eminent  domain or the amount of the  proceeds of the
                  property  so  purchased,  is not less than the amount to which
                  the Company is entitled  under the  applicable  laws governing
                  such taking, or under the terms of such right to purchase,  as
                  the case may be; and

                           (3) in case,  pursuant to the preceding  Paragraph C,
                  the award for said property or the proceeds of such  purchase,
                  or any  portion  thereof,  shall  be  certified  to have  been
                  deposited  with the  trustee or other  holder of a Prior Lien,
                  that the  property  to be  released,  or a  specified  portion
                  thereof,  is or immediately before such taking or purchase was
                  subject to such Prior Lien,  and that such deposit is required
                  by such Prior Lien.

         In any  proceedings for the taking or purchase of any part of the Trust
Estate by the  exercise of eminent  domain or by virtue of any right of purchase
vested in any State,  municipality or other governmental authority,  the Trustee
may be represented by counsel, who may be counsel for the Company.

         Section 7.04.  Release under  Authority of Trustee or  Bondholder.  The
Company,  while in  possession,  of the Trust Estate (other than  securities and
cash held by the Trustee,  or the trustee, or other holder of a prior lien), may
do any of the things enumerated in Section 7.01 notwithstanding that an Event of
Default  shall have happened and shall not have been  remedied;  and the Company
may do any of the things enumerated in Section 7.02  notwithstanding  that it is
in default in the  performance  of a covenant on its part to be performed  under
this Restated Indenture, if the Trustee, in its discretion, or the holders of at
least a  majority  in  amount  of the  Bonds at the time  outstanding,  shall in
writing expressly authorize or consent to such action.

         Section 7.05. In Event of Receiver or Trustee  Possessing Trust Estate.
In case the Trust Estate (other than  securities and cash held by the Trustee or
the trustee or other  holder of a Prior Lien)  shall be in the  possession  of a
receiver or trustee  lawfully  appointed,  the powers in this Article  conferred
upon the Company  with respect to the sale or other  disposition  and release of
the Trust Estate may, to the extent permitted by applicable law, be exercised by
such receiver or trustee  (subject,  in the cases  specified in Section 7.04, to
authorization or consent of the Trustee or Bondholders as provided therein),  in
which case a written  request signed by said receiver or trustee shall be deemed
the  equivalent  of the Written  Order of the Company or Resolution of the Board
required by Section 7.02 or 7.03 and a  certificate  signed by such  receiver or
trustee  shall be  deemed  the  equivalent  of any  Certificate  of the  Company
required by any provision of this Restated  Indenture,  and no such  certificate
need  contain a  statement  to the  effect  that the  Company  is not in default
hereunder. If the Trustee shall be in possession of the Trust Estate (other than
securities  and cash held by the trustee or other  holder of a Prior Lien) under
any provision of this Restated  Indenture,  then such powers may be exercised by
the Trustee in its discretion.



<PAGE>


         Section 7.06.  Purchasers in Good Faith.  No purchaser in good faith of
property  purporting  to be released  herefrom  shall be bound to ascertain  the
authority  of the  Trustee  to  execute  the  release  or to  inquire  as to the
existence of any conditions  required by the provisions  hereof for the exercise
of such authority;  nor shall any purchaser or grantee of any property or rights
permitted  by this Article to be sold,  granted or otherwise  disposed of by the
Company,  be under any  obligation to ascertain or inquire into the authority of
the Company to make any such sale, grant or other disposition.

         Section  7.07.   Application  of  Cash.   Except  as  herein  otherwise
specifically  provided,  cash  received by the Trustee  pursuant to this Article
shall be held and paid over or applied by the  Trustee  as  provided  in Article
Eight,  and all purchase money  obligations  received by the Trustee pursuant to
this Article or pursuant to Section 9.07, shall be held by the Trustee as a part
of the Trust Estate.  The principal of and (subject to the provisions of Section
7.01) interest on all such  obligations  shall be received by the trustee as and
when the same shall become payable, and the Trustee may take any action which in
its judgment may be desirable or necessary for the collection thereof or for the
enforcement  of the  security  therefor.  Unless an Event of Default  shall have
occurred  and shall not have been  remedied,  or unless to the  knowledge of the
Trustee  the  Company  shall  be in  default  in the  performance  of any of the
covenants  on its  part to be  performed  under  this  Restated  Indenture,  all
interest  received by the Trustee on any such obligation shall be paid from time
to time to the Company upon its Written Order of the Company in accordance  with
Clause (d) of Section 7.01.

         Upon  payment  by or on behalf of the  Company  to the  Trustee  of the
principal  amount  of any such  obligation,  or the  portion  thereof  remaining
unpaid,  the Trustee shall release and surrender such  obligation to the Company
upon its Written Order of the Company.


                                  ARTICLE EIGHT

                   APPLICATION AND WITHDRAWAL OF TRUST MONEYS



<PAGE>


         Section 8.01. General  Provisions--Withdrawing Trust Moneys. All moneys
received  by the  Trustee  upon the  release of  property  from the Lien of this
Restated  Indenture,  including the principal of all purchase money  obligations
when paid, and all moneys received by the Trustee as  compensation  for any part
of the Trust  Estate  taken by the  exercise  of the power of eminent  domain or
purchased  by a public  authority,  and all moneys  received  by the  Trustee as
proceeds of the sale of or insurance upon any part of the Trust Estate,  and all
other moneys elsewhere herein provided to be held and applied as in this Article
provided,  and all moneys,  if any (but in no event including  Deposited Cash as
defined in Section  5.03),  received by the Trustee the  disposition of which is
not  elsewhere  herein  otherwise  specifically  provided for (herein  sometimes
called "Trust Moneys," whether the same be Bonded Cash or Unbonded Cash),  shall
be held by the Trustee as a part of the Trust  Estate,  and, upon default in the
payment of the  principal  of any of the Bonds when and as the same shall become
due and payable, whether by the terms thereof or by declaration or otherwise, as
herein  provided,  said moneys  shall,  unless and until such  default  shall be
remedied,  be  applicable  only to the purposes  specified in, and in accordance
with the  provision of,  Section  11.10;  but,  unless such a default shall have
happened and shall not have been remedied, all or any part of said Trust Moneys,
at the request and  election of the Company,  except as  otherwise  specifically
provided herein,  may be withdrawn from and shall be applied by the Trustee from
time to time as provided in Section 8.02, 8.03, 8.04, 8.05, 8.06 or 8.07.

         Section 8.02. Trust Moneys Withdrawn Against Gross Bondable  Additions.
Trust Moneys may be withdrawn  and shall be paid by the Trustee upon the Written
Order of the  Company  at any time and from  time to time  upon  receipt  by and
deposit with the Trustee of the following:

                  A. A RESOLUTION OF THE BOARD,  requesting  the  withdrawal and
         payment of a specified  amount of Trust  Moneys,  and  designating  the
         Trust Moneys so to be withdrawn.

                  B. A CERTIFICATE OF THE COMPANY, complying with the provisions
         of Section 1.02,  stating whether any part of the Trust Moneys so to be
         withdrawn is Bonded Cash.

                  C. The CERTIFICATES,  OPINIONS and OTHER INSTRUMENTS which the
         Company  would  be  required  to  furnish  to  the  Trustee,   upon  an
         application for the  authentication  and delivery of Bonds on the basis
         of  Property  Additions  under  Article  Four,  but with the  following
         variations and omissions of the instruments specified in Section 4.02:

                           (1) Clause (1) of the Property Additions  Certificate
                  shall  contain an  additional  statement to the effect that no
                  part of the  Property  Additions  therein  described  has been
                  acquired  by the  Company  more than 60 days prior to the date
                  when the Trustee  received the Trust Moneys the  withdrawal of
                  which  is  then  requested  (or in the  case of  Trust  Moneys
                  representing the proceeds of purchase money  obligations,  the
                  date when the Trustee received such proceeds);

                           (2) There shall be an additional  statement in Clause
                  (2) of the Property Additions Certificate,  to the effect that
                  no part of the Property Additions therein described has in any
                  other previous or then pending application been made the basis
                  for the release of any Unbonded Property from the Lien of this
                  Restated Indenture, or for the withdrawal of any Unbonded Cash
                  from the  Trustee  or from the  trustee  or other  holder of a
                  Prior  Lien  and  that  no part  of  said  Property  Additions
                  includes any property  acquired or  constructed by the Company
                  in the  performance  of its duty to replace  old,  inadequate,
                  obsolete or worn out Unbonded Property disposed of pursuant to
                  Paragraph  (b) of  Section  7.01,  or to repair,  replace,  or
                  restore  uninsured  Unbonded  Property  which  shall have been
                  damaged or  destroyed  but the  proceeds of the  insurance  on
                  which  shall not have been  required to be paid to the Trustee
                  pursuant to the  provisions  of Section  9.09;  said  Property
                  Additional Certificate shall include no Additions Credits; and
                  said  Property  Additions  Certificate  need not  contain  the
                  statements required by Clause (12) thereof;



<PAGE>


                           (3) It shall  not be  necessary  for the  Company  to
                  deliver to the Trustee the Resolution required by Paragraph A,
                  the  Retirements  Certificate  required  by  Paragraph  E, the
                  Earnings  Certificate  required by  Paragraph F, or any of the
                  certificates or parts of the Opinion of Counsel referred to in
                  Clauses (6) and (7) of Paragraph I of Section 4.02;

                           (4) The Summary  Certificate  required by Paragraph G
                  of Section 4.02 shall show only Gross  Bondable  Additions and
                  shall not include any Additions Credit.

                  D. An OPINION  or  OPINIONS  OF  COUNSEL,  complying  with the
         provisions of Section  1.02,  stating that the  instruments  which have
         been  or  are  therewith  delivered  to  the  Trustee  conform  to  the
         requirements  of this  Restated  Indenture  and  constitute  sufficient
         authority under this Restated Indenture for the Trustee to pay over the
         Trust Moneys applied for, and that upon the basis of the acquisition of
         the Property Additions described in the Property Additions  Certificate
         delivered to the Trustee  pursuant to Paragraph C of this Section,  the
         Trust Moneys the  withdrawal of which is then requested may be lawfully
         paid over under this Section.

         Subject to the  provisions of Section 8.08,  upon  compliance  with the
foregoing  provisions of this Section, the Company shall be entitled to withdraw
and the  Trustee  shall pay upon the  Written  Order of the Company an amount of
Trust Moneys equal to the amount of the Gross Bondable Additions so certified to
the Trustee pursuant to Paragraph C of this Section.

         Section 8.03.  Trust Moneys Withdrawn  Against Net Bondable  Additions.
Trust  Moneys may be  withdrawn  and shall be paid by the Trustee on the Written
Order of the  Company  at any time and from  time to time  upon  receipt  by and
deposit with the Trustee of the following:

                  A. A RESOLUTION OF THE BOARD  requesting  the  withdrawal  and
         payment of a specified  amount of Trust  Moneys,  and  designating  the
         Trust Moneys so to be withdrawn.

                  B. A CERTIFICATE OF THE COMPANY  complying with the provisions
         of Section 1.02 stating  whether any part of the Trust Moneys so to be
         withdrawn is Bonded Cash.

                  C. The CERTIFICATES,  OPINIONS and OTHER INSTRUMENTS which the
         Company  would  be  required  to  furnish  to  the  Trustee,   upon  an
         application for the  authentication  and delivery of Bonds on the basis
         of Net Bondable  Additions  under Article Four,  but with the following
         variations and omissions of the instruments specified in Section 4.02:

<PAGE>

                          (1) Clause (1) of the Property Additions  Certificate
                  shall  contain an  additional  statement to the effect that no
                  part of the  Property  Additions  therein  specified  has been
                  acquired  by the  Company  more than three  years prior to the
                  date when the Trustee received the Trust Moneys the withdrawal
                  of which  is then  requested  (or in the case of Trust  Moneys
                  representing the proceeds of purchase money  obligations,  the
                  date when the Trustee received such proceeds);

                           (2) There shall be an additional  statement in Clause
                  (2) of the Property  Additions  Certificate to the effect that
                  none of the Property  Additions  therein  described has in any
                  other previous or then pending application been made the basis
                  for the release of any Unbonded Property from the lien of this
                  Restated  Indenture or for the withdrawal of any Unbonded Cash
                  from the  Trustee  or from the  trustee  or other  holder of a
                  Prior  Lien  and  that  no part  of  said  Property  Additions
                  includes any property  acquired or  constructed by the Company
                  in the  performance  of its duty to replace  old,  inadequate,
                  obsolete or worn out Unbonded Property disposed of pursuant to
                  Paragraph  (b) of  Section  7.01,  or to  repair,  replace  or
                  restore  Unbonded  Property  which shall have been  damaged or
                  destroyed but the proceeds of the insurance on which shall not
                  have been  required to be paid to the Trustee  pursuant to the
                  provisions of Section 9.09; and a like additional statement in
                  Clause (12) with reference to Property Additions  reflected in
                  any  unused   Additions   Credit  included  in  said  Property
                  Additions Certificate;

                           (3) It shall  not be  necessary  for the  Company  to
                  deliver to the Trustee the Resolution required by Paragraph A,
                  the  Retirements  Certificate  required  by  Paragraph  E, the
                  Earnings  Certificate  required by  Paragraph F, or any of the
                  certificates or parts of the Opinion of Counsel referred to in
                  Clauses (6) and (7) of Paragraph I of Section 4.02;

                           (4) The Summary  Certificate  required by Paragraph G
                  of Section 4.02 shall show only Gross Bondable Additions,  and
                  shall not include any Additions Credit.

                  D. An OPINION  or  OPINIONS  OF  COUNSEL,  complying  with the
         provisions of Section  1.02,  stating that the  instruments  which have
         been  or  are  therewith  delivered  to  the  Trustee  conform  to  the
         requirements  of this  Restated  Indenture  and  constitute  sufficient
         authority under this Restated Indenture for the Trustee to pay over the
         Trust Moneys applied for, and that upon the basis of the acquisition of
         the Property Additions described in the Property Additions  Certificate
         delivered to the Trustee  pursuant to Paragraph C of this Section,  the
         Trust Moneys the  withdrawal of which is then requested may be lawfully
         paid over under this Section.

<PAGE>

         Subject to the  provisions of Section 8.08,  upon  compliance  with the
foregoing  provisions of this Section, the Company shall be entitled to withdraw
and the  Trustee  shall pay upon the  Written  Order of the Company an amount of
Trust Moneys equal to the amount of the Gross Bondable Additions so certified to
the Trustee pursuant to Paragraph C of this Section.

         Section 8.04. Trust Moneys Withdrawn Against Bonds. Trust Moneys may be
withdrawn and shall be paid by the Trustee upon the Written Order of the Company
at any time and from time to time,  upon receipt by and deposit with the Trustee
of the following:

                  A. A RESOLUTION OF THE BOARD,  requesting  the  withdrawal and
         payment of a specified  amount of Trust  Moneys,  and  designating  the
         Trust Moneys so to be withdrawn.

                  B. A CERTIFICATE OF THE COMPANY, complying with the provisions
         of Section 1.02,  stating whether any part of the Trust Moneys so to be
         withdrawn is Bonded Cash;

                  C. The BONDS,  CERTIFICATES,  OPINIONS  and OTHER  INSTRUMENTS
         which the Company  would be required to furnish to the Trustee  upon an
         application for the  authentication and delivery of Bonds under Article
         Six, but with the following  variations or omissions of the instruments
         specified in Section 6.01:

                           (1)  The  Certificate  of  the  Company  required  by
                  Paragraph  C of  Section  6.01  shall  contain  an  additional
                  statement  to the effect  that all of the Bonds which are then
                  made the basis of the  withdrawal  of such  Trust  Moneys  are
                  Bonds  which were  originally  issued by the Company by way of
                  bona fide sale,  other than to an Affiliate of the Company and
                  which were outstanding in the hands of holders thereof,  other
                  than the Company or an Affiliate of the Company, within the 60
                  days immediately  preceding the date when the Trustee received
                  the Trust Moneys whose withdrawal is then requested (or in the
                  case of Trust  Moneys  representing  the  proceeds of purchase
                  money  obligations,  the date when the Trustee  received  such
                  proceeds);

                           (2)  The  Certificate  of  the  Company  required  by
                  Paragraph  C of  Section  6.01  shall  contain  an  additional
                  statement to the effect that the Bonds which are then made the
                  basis for the  withdrawal of the Trust Moneys then applied for
                  do not  include  any Bond which in any other  previous or then
                  pending application has been made the basis for the withdrawal
                  of any  Unbonded  Cash  from the  Trustee  or  which  has been
                  purchased,  paid  or  redeemed  or  otherwise  retired  out of
                  Unbonded Cash  pursuant to the  provisions of Sections 8.05 or
                  8.08;

                           (3) It shall  not be  necessary  for the  Company  to
                  deliver to the Trustee the Resolution  required by Paragraph A
                  of  Section  6.01 or any of the  certificates  or parts of the
                  Opinion of Counsel  referred to in Clauses (2), (3) and (4) of
                  Paragraph  E of  Section  6.01  or  the  Earnings  Certificate
                  required by Paragraph F of Section 6.01.

<PAGE>

                  D. An OPINION  or  OPINIONS  OF  COUNSEL,  complying  with the
         provisions of Section  1.02,  stating that the  instruments  which have
         been  or  are  therewith  delivered  to  the  Trustee  conform  to  the
         requirements  of this  Restated  Indenture  and  constitute  sufficient
         authority under this Restated Indenture for the Trustee to pay over the
         Trust Moneys  applied for, and that,  upon the basis of the  retirement
         (or  provision  therefor)  of the  Bonds  then  made  the  basis of the
         withdrawal  of  such  Trust  Moneys  pursuant  to  Paragraph  C of this
         Section,  such  Trust  Moneys  may be  lawfully  paid over  under  this
         Section.

         Subject to the  provisions of Section 8.08,  upon  compliance  with the
foregoing  provisions of this Section, the Company shall be entitled to withdraw
and the  Trustee  shall pay upon the  Written  Order of the Company an amount of
Trust Moneys equal to the  principal  amount of the Bonds then made the basis of
such withdrawal of Trust Moneys pursuant to Paragraph C of this Section.

         Section 8.05. Trust Moneys Withdrawn to Redeem Bonds.  Trust Moneys may
be  applied by the  Trustee at any time and from time to time to the  payment of
the principal of Bonds upon redemption prior to maturity or upon the purchase of
Bonds  upon  tender  or in the  open  market  or at  private  sale or  upon  any
securities  exchange or in any one or more of said ways,  as the  Company  shall
determine, upon receipt by and deposit with the Trustee of the following:

                  A. A  RESOLUTION  OF THE  BOARD,  requesting  the  application
         pursuant to the  provisions  of this  Section of a specified  amount of
         Trust  Moneys,  designating  the  Trust  Moneys so to be  applied,  and
         specifying  the principal  amount of Bonds and the series thereof to be
         redeemed and the  redemption  price,  or, in case such moneys are to be
         applied to the purchase of Bonds,  prescribing  the method of purchase,
         the price or prices to be paid,  which price or prices shall not exceed
         such then current redemption price, and the maximum principal amount of
         Bonds and the series thereof to be purchased.

                  B. CASH  sufficient in the opinion of the Trustee to cover the
         amount of the accrued interest and premium, if any, required to be paid
         in connection with any such redemption or purchase, which cash shall be
         held by the Trustee in trust for such  purpose,  and, to the extent not
         required for such purpose, shall be repaid to the Company.

                  C. A CERTIFICATE OF THE COMPANY, complying with the provisions
         of Section 1.02,

                           (1)      Stating whether any part of the Trust Moneys
                  so to be applied is Bonded Cash;

                           (2)  Stating  that  all  Bonds so to be  redeemed  or
                  purchased were originally issued by the Company by way of bona
                  fide sale;


<PAGE>
                           (3) Either (i)  describing all Bonds of any series of
                  which Bonds are to be redeemed  owned  legally or equitably by
                  the Company or an Affiliate of the Company which were acquired
                  by the Company or by any  Affiliate  of the  Company  sixty or
                  more days  prior to the date  when the  Trustee  received  the
                  Trust Moneys whose  application to such redemption or purchase
                  is then requested (or in the case of Trust Moneys representing
                  the proceeds of purchase money obligations,  the date when the
                  Trustee  received such  proceeds) or (ii) stating that no such
                  Bonds are to be so redeemed or purchased; and

                           (4) Stating that the Company is not in default in the
                  performance  of  any  of  the  covenants  on  its  part  to be
                  performed under this Restated Indenture.

                  D. An OPINION OF COUNSEL,  complying  with the  provisions  of
         Section  1.02,  stating  that it is proper for the  Trustee,  under the
         provisions  of this Section,  to apply Trust Moneys in accordance  with
         such  Resolution of the Board,  and specifying the certificate or other
         evidence which will be sufficient to show the  authorization,  approval
         or  consent  of or to  such  payment,  redemption  or  purchase  by the
         Company, by any Federal, State or other governmental regulatory body or
         commission at the time having jurisdiction in the premises,  or stating
         that no such authorization, approval or consent is required.

                  E. THE CERTIFICATE OR CERTIFICATES AND OTHER EVIDENCE, if any,
         specified  in the  Opinion  of  Counsel as  provided  in the  foregoing
         Paragraph D.

         Subject to the  provisions of Section 8.08,  upon  compliance  with the
foregoing  provisions of this  Section,  the Trustee shall apply Trust Moneys as
requested  by said  Resolution  of the Board for the  purpose of  purchasing  or
redeeming  Bonds  (other  than  Bonds,  if any,  described  in  Item  (i) of the
foregoing  Clause  (3) of  Paragraph  C) using the cash  deposited  pursuant  to
Paragraph  B of this  Section,  to the  extent  necessary,  to pay  any  accrued
interest and premium or excess over the principal amount of the Bonds purchased,
in connection with any such redemption or purchase.

         Section 8.06.  Trust Moneys  Withdrawn for Repairs.  To the extent that
any Trust Moneys are proceeds of  insurance  upon any part of the Trust  Estate,
they may be paid over upon the Written  Request of the Company to reimburse  the
Company  for  expenditures  made for the  purpose  of  repairing,  restoring  or
replacing the property destroyed or damaged,  upon the receipt by the Trustee of
the following:

                  A. A CERTIFICATE  OF THE COMPANY,  complying  with the
         provisions of Section 1.02 signed also by an Engineer as to Clause (2)
         of this Paragraph A, stating:

                           (1)  Whether any part of the Trust Moneys so to be
                  withdrawn is Bonded Cash;

<PAGE>
                           (2)  That   expenditures  have  been  made  for  such
                  purpose,   and  the  amount   thereof,   and  giving  a  brief
                  description  of the nature of such repairs,  restorations  and
                  replacements and also stating the Fair Value to the Company of
                  such repairs,  restorations or replacements,  and also stating
                  that no part of such repairs, restorations or replacements has
                  in any  previous  or then  pending  application  been made the
                  basis  for the  authentication  and  delivery  of Bonds or the
                  withdrawal of any cash or the release of any property from the
                  lien of this Restated Indenture, or of a Prior Lien;

                           (3) That there is no outstanding  indebtedness of the
                  Company  known,  after due  inquiry,  to the  Company  for the
                  purchase  price or  construction  of, or for  labor,  wages or
                  materials  in  connection  with  the   construction  of,  such
                  repairs, restorations or replacements,  which could become the
                  basis of a Prior Lien thereon and which, in the opinion of the
                  signers  of  said  Certificate  might  materially  impair  the
                  security afforded thereby.

                  B. AN OPINION  OF COUNSEL  complying  with the  provisions  of
         Section  1.02,  to  the  effect  that  such  repairs,  restorations  or
         replacements are subject to the direct lien of this Restated  Indenture
         free from all other liens, charges or encumbrances prior to the lien of
         this Restated  Indenture,  except  Permitted  Encumbrances,  and except
         also, any Prior Liens,  charges,  or encumbrances to which the property
         so  destroyed  or damaged  shall have been  subject at the time of such
         destruction or damage.

         The amount of Trust  Moneys so to be paid shall be an amount up to, but
not exceeding,  the Fair Value to the Company of the expenditures stated in such
Certificate.

         Section 8.07.  Trust Moneys  Withdrawn  for Taxes.  Trust Moneys may be
withdrawn  and shall be paid upon the Written  Order of the Company,  subject to
the provisions  set forth below,  at any time and from time to time upon receipt
by and deposit with the Trustee of the following:

                  A. A RESOLUTION OF THE BOARD,  requesting  the  withdrawal and
         payment of a specified  amount of Trust  Moneys,  and  designating  the
         Trust Moneys so to be withdrawn.

                  B. A CERTIFICATE OF THE COMPANY, complying with the provisions
         of Section 1.02, stating:

                           (1) Whether any part of the Trust Moneys so to be
                  withdrawn is Bonded Cash.

                           (2) That the  Company has  theretofore,  on a date or
                  dates  specified,  delivered to and deposited with the Trustee
                  the CASH and/or PURCHASE MONEY  OBLIGATIONS,  CERTIFICATES and
                  OPINIONS  required  upon  the  release  of  certain  specified
                  property  or  securities,  as the  case  may be,  pursuant  to
                  Article Seven.


<PAGE>
                           (3) That the Company has  theretofore,  paid  Federal
                  income taxes or other Federal taxes based on or measured by or
                  in  respect  of net  income  for a  specified  period,  in the
                  computation  of  which  taxes,   gains  or  profits  from  the
                  disposition   of  such  property  or   securities   have  been
                  reflected, and stating:

                                    (a)     the amount of such taxes so paid;

                                    (b) the  amount  of  taxable  gain or profit
                           from the  disposition  of such property or securities
                           reflected in the computation of said taxes,  provided
                           that  there   shall  not  be  included  in  any  such
                           Certificate,  any gain or profit in  connection  with
                           any particular  disposition of property or securities
                           if the  amount  of the gain or  profit  is less  than
                           $150,000;

                                    (c) the net  taxable  income of the  Company
                           from whatever source, including gains or profits upon
                           the disposition of property or securities  whether or
                           not  included  in the  foregoing  item  (b),  for the
                           period in respect of which such taxes were levied;

                                    (d) such other facts as, in the  judgment of
                           the  Trustee,  may  be  necessary  to  determine  the
                           taxable  gains,  profits or income  derived  from the
                           disposition  of such property or  securities  and the
                           net taxable income of the Company; and

                                    (e)  that the  amount  of  reimbursement  to
                           which the Company is entitled, in accordance with the
                           provisions of this Section, is a specified sum.

                           (4) That the  aforesaid  taxes were levied in respect
                  of income  for a tax year or other tax  period  ended not more
                  than twelve months prior to the date of the Certificate.

                  C. A COPY OF THE TAX RETURN OR RETURNS  covering  the taxes in
         respect of which reimbursement is sought.

                  D. A CERTIFICATE OF AN INDEPENDENT ACCOUNTANT, selected by the
         Company and approved by the Trustee in the exercise of reasonable care,
         complying  with  the  provisions  of  Section  1.02,  stating  that the
         computation  of the  amount of  reimbursement  to which the  Company is
         entitled  as  set  forth  in  subparagraph  (e)  of  Clause  (3) of the
         foregoing Paragraph B is, in the opinion of the signer, in all respects
         in accordance with the provisions of this Section.

                  E. An OPINION OF COUNSEL,  complying  with the  provisions  of
         Section 1.02 and stating that in his opinion all  conditions  precedent
         which relate to the  withdrawal  of cash, as set forth in this Section,
         have been complied with.



<PAGE>


         The  amount  of Trust  Moneys  so to be paid  shall be a sum equal to a
portion  (not  greater  than 100%) of any such taxes so  certified  to have been
paid,  bearing the same ratio to the  aggregate  amount of such taxes as (i) the
amount of taxable gains or income certified in Subparagraph (b) of Clause (3) of
the foregoing Paragraph B bears to (ii) the net taxable income of the Company as
certified in  Subparagraph  (c) of said Clause (3),  provided that the amount of
Trust Moneys so to be paid shall not exceed (x) the amount of cash  certified in
Clause (2) of the foregoing  Paragraph B or (y) 10% of the  aggregate  amount of
cash and purchase money obligation thus certified in said Clause (2),  whichever
shall be the lesser amount.

         The  Company  covenants  that,  in the event of the  refund of any such
taxes  so paid by  reason  of the  overpayment  thereof  or  otherwise,  it will
promptly  repay to the Trustee  such  portion of the sum  refunded as the amount
withdrawn by the Company in respect of reimbursement for such taxes bears to the
total amount of taxes so paid,  and sums so repaid to the Trustee  shall be held
by the Trustee subject to disposition under this Article Eight.

         Section  8.08.  Trust Moneys Held More Than Two Years Applied to Redeem
Bonds and  Application of Trust Moneys in Event of Eminent Domain or Purchase by
a Public Authority of the Entire Trust Estate.

                  (a) In the event  that at any time  there  shall be on deposit
         with the  Trustee,  Trust  Moneys in an  amount  in excess of  $25,000,
         exclusive of all moneys which represent  proceeds of insurance  subject
         to the  provisions  of  Section  8.06,  and if at all times  during the
         preceding  two years the amount of Trust  Moneys so on deposit with the
         Trustee shall have exceeded such amount,  then, and in every such case,
         the Trustee shall set aside all Trust  Moneys,  exclusive of all moneys
         which  represent  proceeds of insurance  subject to the  provisions  of
         Section  8.06,  then held by it and which have been held by it for more
         than two years,  and  thereafter  the Trust  Moneys so set aside may be
         applied only in accordance with the provisions of Section 8.05 pro rata
         as between the several series of Bonds then outstanding in the ratio of
         the  respective   aggregate  principal  amounts  of  each  such  series
         outstanding  at the aforesaid  time. In case such Trust Moneys shall be
         applied to  redemption of Bonds  pursuant to Section  8.05,  redemption
         shall be effected at such then applicable  redemption  prices,  in such
         manner  and upon such  notice as may be  specified  in  respect of said
         Bonds of each series in this  Restated  Indenture or in any  applicable
         indenture supplemental hereto.



<PAGE>

                  (b) In case of the sale  and  release  of,  or the  taking  by
         eminent  domain or of the purchase by a public  authority  (pursuant to
         any right which it may then have to make such  purchase)  of the entire
         Trust Estate,  then all Trust Moneys  representing the proceeds thereof
         received by the Trustee  shall be applied by the Trustee in  accordance
         with  the  provisions  of  Section  8.05  to the  redemption  of  Bonds
         outstanding  hereunder  (prorated  between or among the several series,
         according to the principal amount of Bonds  outstanding of each series,
         if  Bonds  of more  than  one  series  be  outstanding)  at  such  then
         applicable  redemption  prices,  in such  manner  and upon such  notice
         (which  shall be given by the Trustee for and on behalf of the Company,
         and in the name of the  Company) as may be specified in respect of said
         Bonds of each series in this  Restated  Indenture or in any  applicable
         indenture supplemental hereto.

                  (c) Whenever Bonds shall be redeemed  pursuant to this Section
         8.08,  the  Company  shall in each case  other  than in the case of the
         sale, taking, or purchase, as aforesaid, of all or substantially all of
         the Trust  Estate,  pay to the  Trustee  cash  sufficient  to cover the
         amount of the accrued interest and premium, if any, required to be paid
         in connection with any such redemption, which cash shall be held by the
         Trustee in trust for such purpose,  and, to the extent not required for
         such purpose, shall be repaid to the Company.

         Section 8.09. Possession After Default. In case the Company shall be in
default  hereunder  (other than a default in the payment of the principal of any
Bond),  the  Company,  while in  possession  of the  Trust  Estate  (other  than
securities  and cash held by the  Trustee or the  trustee  or other  holder of a
Prior  Lien),  may do any of the things  enumerated  in  Sections  8.02 to 8.07,
inclusive,  if the  Trustee,  in its  discretion,  or the  holders of at least a
majority  in  amount  of the  Bonds at the time  outstanding,  shall in  writing
expressly  authorize  or consent to such action,  in which event no  certificate
filed  pursuant to any of said  Sections  need contain a statement to the effect
that the Company is not in default hereunder.

         In case the Trust Estate  (other than  securities  and cash held by the
Trustee  or the  trustee  or  other  holder  of a Prior  Lien)  shall  be in the
possession of a receiver or trustee lawfully appointed,  the powers hereinbefore
in Sections 8.02, 8.03, 8.06 and 8.07 conferred upon the Company with respect to
the  withdrawal  of Trust Moneys may be  exercised  by such  receiver or trustee
(subject to similar  authorization  or consent of the Trustee or  Bondholders as
aforesaid),  in which case a written  request signed by said receiver or trustee
shall be deemed the  equivalent  of any  Resolution  of the Board or any Written
Request  of the  Company  required  by any  provision  of  this  Article,  and a
certificate signed by such receiver or trustee shall be deemed the equivalent of
any  Certificate  of the Company  required  by any  provision  of this  Restated
Indenture and such certificate  shall contain a statement to the effect that the
Company is not in default in payment of the principal of any Bond,  but need not
contain a statement  to the effect that the Company is not  otherwise in default
hereunder. If the Trustee shall be in possession of the Trust Estate (other than
securities  and cash held by the trustee or other  holder of a Prior Lien) under
any provision of this Restated  Indenture,  then such powers may be exercised by
the  Trustee  so  in  possession  of  the  Trust  Estate,  in  its  uncontrolled
discretion.

         Section 8.10.  Cancellation  of Bonds  Delivered.  All Bonds  delivered
uncanceled  to the Trustee and on the basis of which Trust Moneys are paid over,
or for whose  redemption  or  purchase  Trust  Moneys  are  applied,  under this
Article, when received by the Trustee, shall be immediately canceled.



<PAGE>


         Section 8.11.  Moneys Received by Trustee and Payment of Interest.  All
moneys received by the Trustee, including any moneys received for the payment of
Bonds,  pursuant to any provision of this Restated  Indenture,  shall be held in
trust for the purposes for which they were received,  but,  except to the extent
required by applicable  law, need not be segregated in any manner from any other
moneys,  and the  Trustee  shall not be under  any  obligation  to pay  interest
thereon  except  such,  if any, as during the period it may  generally  allow on
similar funds or as it may agree to pay. Unless an Event of Default has happened
and shall be  continuing,  any interest so allowed by the Trustee  shall be paid
over to the Company.

         Section 8.12.  Investment of Trust Funds. So long as the Company is not
in default in the  payment of interest on any Bonds  outstanding  hereunder  and
none of the  events of default  specified  in Section  11.01  hereof  shall have
occurred and be  continuing,  any Trust Moneys  deposited with the Trustee under
any of the provisions hereof (other than Trust Moneys deposited with the Trustee
for the purpose of effecting payment or redemption of any Bonds issued hereunder
or interest thereon or which the Trustee has been directed to hold and apply for
the purpose of such payment or redemption)  shall, at the Written Request of the
Company evidenced by a Resolution of the Board, be invested or reinvested by the
Trustee  in any bonds or other  obligations  of the  United  States  of  America
designated  by the  Company,  maturing not more than five years from the date of
their  purchase  by the  Trustee,  and until an event of  default  specified  in
Section 11.01 hereof shall have occurred and be continuing, any interest on such
bonds and obligations  which may be received by the Trustee,  shall be forthwith
paid to the Company.  Such bonds and obligations shall be held by the Trustee as
a part of the Trust  Estate  subject to the same  provisions  hereof as the cash
used to purchase the same, but upon a like Written Request of the Company (which
Written Request the Company agrees to make whenever notified by the Trustee that
Trust Moneys are  required to be applied  under one or more  provisions  of this
Restated  Indenture and that the Trustee does not hold  sufficient cash for such
purpose or purposes)  the Trustee shall sell all or any  designated  part of the
same and the  proceeds of such sale shall be held by the Trustee  subject to the
same  provisions  hereof  as the  cash  used by it to  purchase  the  bonds  and
obligations  so sold. If such sale shall produce a net sum less than the cost of
the bonds or other  obligations so sold, the Company  covenants that it will pay
promptly to the Trustee such amount of cash as with the net  proceeds  from such
sale will equal the cost of the bonds or other  obligations so sold, and if such
sale shall  produce a net sum greater than the cost of the bonds or  obligations
so sold,  the Trustee shall  promptly pay to the Company an amount in cash equal
to such excess.


                                  ARTICLE NINE

                       PARTICULAR COVENANTS OF THE COMPANY

         The Company hereby covenants, agrees and warrants as follows:



<PAGE>


         Section 9.01. Payment of Principal and Interest.  The Company will duly
and punctually  pay the principal of and interest and premium,  if any, on every
Bond issued under this Restated Indenture,  on the dates and at the place and in
the manner  specified  in the Bonds.  The  interest on Bonds shall be paid to or
upon the order of the registered  owners thereof by check of the Company,  or of
the Trustee or other paying agent.

         Money  deposited  with the  Trustee  or with any  paying  agent for the
purpose of paying the  principal  of or interest on Bonds,  shall  constitute  a
trust fund for such purpose and for no other  purpose  whatsoever.  Every paying
agent which may be appointed for the purpose of making payments of the principal
of or the  interest  on any Bond  shall be  required  to notify  the  Trustee in
writing  promptly  of any  default  by the  Company  in the  payment of any such
principal or interest.

         The Company  covenants and agrees that, if it should at any time act as
its own paying  agent,  it will, on or before each due date of the principal of,
and premium, if any or interest on any of the Bonds, set aside and segregate and
hold in trust for the benefit of the holders of such Bonds a sum  sufficient  to
pay such  principal  and premium,  if any, or interest so becoming due, and will
notify the Trustee of any failure to take such action.

         Section 9.02. Company  Prohibited from Extending Time for Payment.  The
Company will not, directly or indirectly, extend, or assent to the extension of,
the time for payment of any claim for interest  upon any Bond,  and it will not,
directly  or  indirectly,  take  part  in any  arrangement  therefor  or for the
purchasing  or funding of claims in any manner.  No such claim so extended,  nor
claim for interest upon any Bond which in any way at or after its maturity shall
have been  transferred  or pledged  separate and apart from the Bond to which it
belongs,  shall be  entitled,  in case of default  hereunder,  to the benefit or
security  of this  Restated  Indenture,  until the prior  payment in full of the
principal of all Bonds issued hereunder and outstanding and of all claims not so
extended or transferred or pledged.

         Section  9.03.  Warrants  and  Defends  Title.  The Company is lawfully
seized and  possessed  of and has good title to all of the Trust Estate which is
described  in the  Granting  Clauses  hereof as being  presently  mortgaged  and
pledged  hereunder,  and it has good right and lawful  authority to mortgage and
pledge the same as provided in and by this Restated Indenture;  said property is
free and clear of all liens and  encumbrances  except liens and encumbrances set
forth in the Granting Clauses and except Permitted Encumbrances, and the Company
warrants  and will defend the title to such  property  and every part thereof to
the Trustee,  its successors in the trust and assigns,  forever, for the benefit
of the  holders of the Bonds,  against  the  claims and  demands of all  persons
whomsoever.


<PAGE>

         Section 9.04.  Payment of Taxes and  Prohibition on Liens.  The Company
will pay or cause to be paid all taxes and  assessments  levied or assessed upon
the Company or upon the Trust  Estate or upon any income  therefrom  or upon the
interest of the Trustee or of the  Bondholders  in respect of the Trust  Estate,
when the same shall become due, provided, however, that nothing herein contained
shall constitute an agreement on the part of the Company to pay any taxes of the
mortgagee  upon or on account of the  mortgage  debt,  and will duly observe and
conform to all valid requirements of any governmental  authority relative to any
of the Trust Estate, and all covenants, terms and conditions upon or under which
any of the Trust  Estate is held;  it will not create or suffer to be  hereafter
created  any lien upon the Trust  Estate,  or any part  thereof,  or the  income
therefrom, prior to, or having equality with, the lien of these presents, except
Permitted  Encumbrances;  within  three  months after the accruing of any lawful
claims or demands for labor,  material,  supplies or other  objects,  which,  if
unpaid, might by law be given precedence over this Restated Indenture, as a lien
or charge upon the Trust Estate or the income thereof,  it will pay the same, or
make  adequate  provision to satisfy or discharge the same;  provided,  however,
that nothing in this Section  contained  shall require the Company to observe or
conform to any requirement of any  governmental  authority or to pay or cause to
be paid or discharged, or make provision for, any such tax, prior lien or charge
so long as the  validity  thereof  shall be contested by it in good faith and by
appropriate  legal  proceedings  and such security for the payment of such prior
lien or charge shall be given as the Trustee may require; and it will not suffer
to be done  any  matter  or thing  whereby  the  lien  hereof  might or could be
impaired;  provided,  however, that notwithstanding anything herein contained to
the  contrary the Company may acquire any  property  constructed  or acquired as
betterments,   extensions,   improvements,   repairs,  renewals,   replacements,
substitutions or alterations to, upon, for and of property subject to such Prior
Lien, but only to the extent that the  after-acquired  property  clause or other
provisions of such Prior Lien attaches  thereto,  but no such mortgage,  lien or
other  encumbrance  shall be  permitted  to exist  upon any such  after-acquired
property  which is made the basis of the  authentication  and  delivery of Bonds
under Article Four or the withdrawal of Deposited Cash under Section 5.03 or the
release of property  under Article Seven or the withdrawal of Trust Moneys under
Article Eight (except to the extent  expressly  permitted by Articles  Seven and
Eight).

         Section  9.05.  Repair and  Maintain.  The Company  covenants  that the
business of the Company will be carried on and conducted in an efficient manner;
all property,  plants,  appliances  and  equipment of the Company  useful in the
carrying  on of its  business  will be kept in  repair  and  maintained  in good
working  order and  condition,  and if worn or damaged  beyond  repair  shall be
replaced by other  property  suitable  to the  business of the Company and of at
least equal value.

         Whenever the holders of not less than a majority in amount of the Bonds
shall so request the Trustee in writing,  or whenever the Trustee shall elect so
to do, the Trustee  shall select in the  exercise of  reasonable  care,  and the
Company at its own expense shall  promptly  appoint an  Independent  Engineer to
make an  inspection  of the Trust Estate and within a reasonable  time after his
appointment to report to the Company and to the Trustee whether or not the Trust
Estate,  as an operating  system,  has been  maintained in good repair,  working
order and  condition;  provided  that the Company shall not be obligated to make
more than one such appointment within any period of sixty months.

         If such  Independent  Engineer shall report that the Trust Estate as an
operating  system has not been so  maintained he shall specify in his report the
character and extent of, and the estimated  cost of making good,  the deficiency
in such maintenance, and, if longer than one year, the time reasonably necessary
to make good such deficiency. Said report shall be placed on file by the Trustee
and shall be open to inspection by any Bondholder at any reasonable time.

<PAGE>

         The Company shall,  with all reasonable speed, do such maintenance work
as may be necessary to make good any such  maintenance  deficiency as shall have
been  specified  to  exist in such  report,  and upon  completion  thereof  such
Independent  Engineer  (or, in the case of his refusal or inability to act, some
other Independent Engineer selected by the Trustee in the exercise of reasonable
care) shall  report in writing to the Trustee that the  deficiency  specified in
said report has been made good.

         Unless the Trustee shall be so informed in writing by such  Independent
Engineer  within  one year  from  the date of the  report  with  respect  to the
maintenance deficiency (or such longer period as may be specified in such report
to be reasonably necessary for the purpose),  that such deficiency has been made
good,  the Company shall be deemed to have  defaulted in the due  performance of
the  covenants  of this Section  with  respect to the  maintenance  of the Trust
Estate; and in any proceedings consequent upon such default, said report of such
Independent  Engineer  shall be conclusive  evidence  against the Company of the
existence of the facts and  conditions  therein set forth,  and,  subject to the
provisions of Section  14.02,  the Trustee  shall be fully  protected in relying
thereon.

         All expenses  incurred  pursuant to this Section  shall be borne by the
Company.

         In the event that any regulatory authority having jurisdiction over the
Company  shall  determine  that the  expenditures  required by this  Section for
repairs  and  maintenance  are  excessive  or  shall,  by order  or  regulation,
prohibit,   in  whole  or  in  part,  any  such  expenditures  for  repairs  and
maintenance,  then,  upon filing with the Trustee a certified copy of such order
or a copy of such regulation,  as the case may be, the Company shall, so long as
such order or such  regulation  remains in effect,  be relieved from  compliance
with  the  covenants  contained  in  this  Section,  to  the  extent  that  such
expenditures for repairs and maintenance shall have been held excessive or shall
be prohibited.

         Section 9.06. Prior Lien  Obligations.  The Company will not permit any
increase of the aggregate principal amount of outstanding Prior Lien Obligations
secured by any Prior  Lien,  but the  Company  shall have the right to issue new
Obligations  under a Prior  Lien,  in place of, and in  substitution  for, or to
refund,  other  Obligations  secured by the same Prior  Lien,  if the  principal
amount of such new  Obligations  shall not  exceed the  principal  amount of the
Obligations  in place of which,  or to refund which,  such new  Obligations  are
being issued.

         The Company  will not permit any default to occur in the payment of any
principal of or any interest or premium,  if any, on any Prior Lien Obligations,
and will not permit any act or  omission,  which is or may be  declared  to be a
default under any mortgage securing Prior Lien  Obligations,  to occur hereafter
or to  continue  beyond  the  period of  grace,  if any,  specified  in any such
mortgage,  and will,  at all times,  protect  its title to the Trust  Estate and
every part thereof against loss by reason of any foreclosure or other proceeding
to enforce any Prior Lien thereon.

<PAGE>

         Section  9.07.  Use of  Property  Released  from Prior  Lien.  Upon the
cancellation  and discharge of any Prior Lien,  the Company will cause all cash,
obligations  or other  property then held by the trustee or other holder of such
Prior Lien, which were received by such trustee or other holder by reason of the
release of, or which  represent the proceeds of the taking by eminent  domain or
the purchase by a public authority or any other disposition of, or insurance on,
any of the Trust  Estate  (including  all  proceeds  of or  substitutes  for any
thereof), in case such cash,  obligations or other property was received by such
trustee or other holder  while the property  released was subject to the Lien of
this Restated  Indenture,  and not  otherwise,  to be paid and/or  deposited and
pledged with the trustee, subject to no lien or charge prior to the Lien of this
Restated Indenture, such cash to be held and paid over or applied by the Trustee
as provided in Article Eight and such  obligations  or other property to be held
by the Trustee as part of the Trust Estate;  provided,  however, that in lieu of
paying or delivering to the Trustee all or any part of such cash, obligations or
other  property,  the Company may  deliver to the Trustee a  certificate  of the
trustee or other holder of another Prior Lien,  stating that a specified  amount
thereof has been  deposited  with such trustee or other  holder  pursuant to the
requirements  of such  other  Prior  Lien,  in which  case  there  shall also be
delivered  to the  Trustee an Opinion of Counsel  stating  that such  deposit is
required by such other Prior Lien.

         Section 9.08.  Recording and Filing and Annual Opinion and Certificate.
At any and all times the Company will do, execute,  acknowledge,  deliver,  file
and/or record,  and will cause to be done,  executed,  acknowledged,  delivered,
filed and/or  recorded,  all and every such further  acts,  deeds,  conveyances,
mortgages,  transfers  and  assurances  in law as the Trustee  shall  reasonably
require for the better assuring, conveying, pledging, transferring,  mortgaging,
assigning and confirming unto the Trustee all and singular the hereditaments and
premises, estate and property hereby conveyed, pledged, transferred or assigned,
or intended so to be.

         The Company will cause this  Restated  Indenture  and every  instrument
amendatory  hereof or supplementary  hereto which shall be executed  pursuant to
the provisions hereof, forthwith upon execution, to be recorded as a real estate
mortgage and filed as a security  interest under the Uniform  Commercial Code as
required by law under the applicable state jurisdictions and will, to the extent
permitted by law, pay any mortgage  recording or filing or other tax legally due
upon such  recording  and  filing or the  issuing of Bonds  hereunder,  and will
punctually  and fully  comply with the  requirements  of any and every  mortgage
recording  tax law or other law, or direction of the Trustee,  affecting the due
recording and re-recording and filing and refiling of this Restated Indenture or
of such  additional  instruments  in such  manner as may be  necessary  fully to
preserve,  continue  and protect the  security  and  validity of the Bonds,  the
superior lien of this Restated  Indenture on the Trust Estate and the rights and
remedies of the Trustee.

         Promptly  after the execution and delivery of this Restated  Indenture,
the Company  will furnish to the Trustee an Opinion of Counsel,  complying  with
the  provisions  of Section  1.02,  either  stating  that in the opinion of such
counsel this Restated  Indenture  has been properly  recorded and filed so as to
make  effective the lien intended to be created hereby and that all other action
required  by the  preceding  paragraph  theretofore  to have been taken has been
taken,  and reciting the details of such action,  or stating that in the opinion
of such counsel no such  recording,  filing or other action is necessary to make
such lien effective.

<PAGE>
         The Company  agrees upon each and every  purchase or acquisition by the
Company  hereafter of property which under the terms hereof is upon  acquisition
to be subject to this Restated Indenture, to record and/or re-record and/or file
or refile this Restated  Indenture,  and/or a duplicate  hereof and/or a further
separate and supplemental mortgage, and/or assignment, if and to the extent that
such action may be required by law in order effectively to subject such property
to the lien  hereof and to  preserve  the  priority  of such lien,  or as may be
directed  by the  Trustee,  in the  proper  office or  offices  of the county or
counties or other recording districts in which such property is situated,  or in
any other  office,  and to do every other act and thing  necessary to effectuate
the lien hereof in respect thereof.

         Without  limiting the  generality  of the  foregoing  covenants of this
Section,  the Company  will  furnish to the Trustee on or before May 1st in each
year commencing with the year 1942, the following:

                  A. A CERTIFICATE OF THE COMPANY, complying with the provisions
         of Section  1.02,  briefly  describing  (or  referring to  descriptions
         thereof in other  Certificates  of the  Company)  each item of property
         which was acquired in the preceding calendar year at a cost of not less
         than  $100,000,  and which under the terms  hereof is  subjected to the
         Lien of this Restated Indenture, or required so to be;

                  B. AN OPINION OF COUNSEL,  complying  with the  provisions  of
         Section   1.02,   specifying   the   mortgages,   deeds,   conveyances,
         assignments,  transfers and instruments of further assurance which will
         be  sufficient  to subject such  property to the Lien of this  Restated
         Indenture  or  stating  that  no  such  mortgage,   deed,   conveyance,
         assignment,  transfer or instrument  of further  assurance is necessary
         for such purpose,  and that,  upon the  recordation  or filing,  in the
         manner stated in such opinion, of the instruments so specified, if any,
         and, upon the  recordation or filing of this Restated  Indenture or any
         supplemental indenture in the manner stated in such opinion, or without
         any such  recordation  or filing if such opinion  shall so state,  this
         Restated Indenture will constitute a valid lien upon such property;

                  C. THE MORTGAGES, DEEDS, CONVEYANCES,  ASSIGNMENTS,  TRANSFERS
         AND INSTRUMENTS OF FURTHER ASSURANCE, if any, specified in such Opinion
         of Counsel and not theretofore delivered to the Trustee;

                  D. AN OPINION OF COUNSEL,  complying  with the  provisions  of
         Section 1.02,  either  stating that in the opinion of such counsel such
         action  has  been  taken  with  respect  to  the   recording,   filing,
         re-recording and refiling of this Restated Indenture as is necessary to
         maintain the lien hereof,  and reciting the details of such action,  or
         stating that in the opinion of such counsel no such action is necessary
         to maintain such lien, and stating  whether,  under the then applicable
         law, such action will be necessary or advisable within the next ensuing
         period of twelve months.

<PAGE>

         Section  9.09.  Insurance  Requirements  and  Annual  Certificate.  The
Company will at all times keep the Trust Estate  insured with good and reputable
insurance  companies against loss or damage by fire or other risk, to the extent
that property of similar  character is usually insured by companies engaged in a
similar  business.  The Company will also at all times maintain proper insurance
against loss or damage from such hazards and risks to the person and property of
others  as are  usually  insured  against  by  companies  engaged  in a  similar
business.  All policies or other  contracts for insurance  upon the Trust Estate
shall  provide that any loss in excess of Five Million  Dollars shall be payable
to the Trustee as its interest may appear,  or to the trustee or other holder of
any Prior Lien if required by the terms thereof; and, if so requested in writing
by the Trustee,  the Company will,  subject to the provisions of any Prior Lien,
cause policies for such insurance to be delivered to the Trustee.

         Any such insurance moneys received by the Trustee shall, subject to the
requirements  of any Prior Lien, be held by the Trustee and be applied from time
to time as provided in Article Eight.

         There shall be deposited with the Trustee,  at such reasonable times as
it may  request,  and at least once in each year on or before May 1 without  any
such request,  a CERTIFICATE  OF THE COMPANY,  complying  with the provisions of
Section 1.02,  with respect to the  compliance by the Company with the covenants
contained in this Section 9.09, which certificate (i) shall include the names of
the issuing  companies,  the numbers and expiration  dates of the policies,  the
amounts of such  policies and the risks  covered  thereby,  and (ii) shall state
that it has been  prepared in  accordance  with the  provisions  of this Section
9.09.  In case the Trustee  shall at any time notify the Company in writing that
it disapproves of any insurance company with which the Company has taken out any
insurance,  or of the terms of any such policy, other insurance  satisfactory to
the Trustee shall forthwith be effected by the Company.

         Except as may be otherwise  required by Section 14.02,  the Trustee may
accept as conclusive  the  adjustment of any loss or losses  between the Company
and any insurance  company,  without the necessity of any further  action on the
part of the Trustee,  and the Trustee  shall be under no duty or  obligation  to
check or verify any insurance  policies or any list of insurance policies at any
time  filed with it  hereunder,  or to  ascertain  whether  the Trust  Estate is
adequately or properly  insured and may accept a  certificate  of the Company as
conclusive  evidence of any such adjustment and also as conclusive evidence that
the total amounts payable by insurance  companies with respect to any given loss
by the Company are or will be less than $5,000,000.

         Section 9.10.  Record Keeping.  The Company will keep full and complete
records and accounts showing the sale of all Bonds  authenticated  and delivered
hereunder, and the price or prices received therefor.

<PAGE>

         Section  9.11.  Accounting  and Audits.  The Company will keep books of
record and account,  in which full, true and correct entries will be made of all
dealings  or  transactions  relative  to the plants,  properties,  business  and
affairs of the Company,  and all books,  documents and vouchers  relative to the
plants, properties,  business and affairs of the Company shall at all reasonable
times be open to the inspection of such accountant or other agent as the Trustee
may from time to time designate,  and the Company will bear all expenses of such
inspections at intervals of not more than once every two years. Except as may be
otherwise required by Section 14.02, the Trustee shall be under no duty to cause
any such inspection to be made,  unless requested so to do by the holders of not
less than a majority in amount of the Bonds.

         Section  9.12.  Maintain  Existence.  Except  in the case of a  merger,
consolidation,  conveyance  or transfer  as in Article  Thirteen  provided,  the
Company will at all times maintain its corporate existence and right to carry on
business and will duly procure all renewals and extensions  thereof and shall do
or cause to be done all things  necessary to preserve and keep in full force and
effect  its  corporate  existence  and  rights and  franchises  of the  Company;
provided,  the  Company  shall not be  required  to  preserve  any such right or
franchise  if, in the good  faith  judgment  of the  Company,  the  preservation
thereof is no longer  desirable in the conduct of business of the  Company,  and
the loss thereof would not adversely  affect the interests of the Bondholders in
any  material   respect.   The  Company  will  not  enter  into  any  merger  or
consolidation,  or make any conveyance or lease of all or substantially  all the
Trust Estate as an entirety unless, in connection therewith,  the Company and/or
the successor  corporation  and/or the lessee, as the case may be, shall observe
and comply with the terms and conditions of Article Thirteen  applicable to such
transaction.

         Section 9.13. Advances by Trustee. If the Company shall fail to perform
any of the covenants contained in Section 9.09, the Trustee may make advances to
perform  the same in its behalf,  but,  except as may be  otherwise  required by
Section  14.02,  shall be under no obligation so to do; and all sums so advanced
shall be at once  repayable  by the  Company,  and shall  bear  interest  at six
percent  (6%) per annum  until  paid,  and shall be secured  hereby and have the
benefit of the lien hereby  created in priority to the Bonds  issued  hereunder,
but no such  advance  shall be deemed to relieve  the  Company  from any default
hereunder.

         Section  9.14.  Dividend  Restrictions.  Other than  dividends  payable
solely in shares of its common stock,  the Company may declare and pay dividends
in cash or property on any shares of its common stock only out of the unreserved
and  unrestricted  retained  earnings of the Company and shall not make any such
declaration  or payment  when the  Company  is  insolvent,  or when the  payment
thereof would render the Company insolvent.

         Section 9.15.  Governmental Reporting Requirements.  The Company
covenants and agrees

<PAGE>

                 (1) to file with the Trustee  within 15 days after the Company
         is  required  to  file  the  same  with  the  Securities  and  Exchange
         Commission,  copies  of the  annual  reports  and  of the  information,
         documents,  and other reports (or copies of such portions of any of the
         foregoing  as such  Commission  may  from  time to  time by  rules  and
         regulations  prescribe)  which the Company may be required to file with
         such  Commission  pursuant  to  Section  13 or  Section  15  (d) of the
         Securities  Exchange Act of 1934; or, if the Company is not required to
         file  information,  documents,  or reports  pursuant  to either of such
         sections, then to file with the Trustee and the Securities and Exchange
         Commission,  in accordance with rules and  regulations  prescribed from
         time to time by said Commission, such of the supplementary and periodic
         information,  documents,  and reports which may be required pursuant to
         Section  13 of the  Securities  Exchange  Act of 1934 in  respect  of a
         security listed and registered on a national securities exchange as may
         be prescribed from time to time in such rules and regulations;

                  (2) to file with the Trustee and the  Securities  and Exchange
         Commission,  in accordance  with the rules and  regulations  prescribed
         from  time to time by said  Commission,  such  additional  information,
         documents  and reports with respect to  compliance  by the Company with
         the conditions and covenants provided for in this Restated Indenture as
         may be required from time to time by such rules and regulations;

                  (3) to  transmit to the holders of the Bonds in the manner and
         to the extent  provided in Clause (c) of Section  14.05 with respect to
         reports pursuant to Clause (a) of Section 14.05,  such summaries of any
         information,  documents and reports required to be filed by the Company
         pursuant to Clauses (1) and (2) of this Section 9.15 as may be required
         by the  rules  and  regulations  prescribed  from  time  to time by the
         Securities and Exchange Commission.

         Section 9.16.  List of  Bondholders.  The Company  covenants and agrees
that it will furnish or cause to be furnished  to the Trustee  between  April 15
and April 30 and between October 15 and October 30 in each year,  beginning with
the month of April in the year 1942,  and at such other times as the Trustee may
request in writing,  a list in such form as the Trustee may  reasonably  require
containing all the information in the possession or control of the Company or of
its  paying  agents,  as to the  names and  addresses  of the  holders  of Bonds
obtained  since  the  date as of which  the  next  previous  list,  if any,  was
furnished.  Any such list may be dated as of a date not more than 15 days  prior
to the time such  information  is furnished or caused to be furnished,  and need
not include information received after such date.

         Section 9.17.  Preservation of List of Bondholders.

<PAGE>

                  (a) The  Trustee  shall  preserve,  in as current a form as is
         reasonably  practicable,  all information as to the names and addresses
         of the holders of Bonds (1) contained in the most recent list furnished
         to it as provided in Section  9.16,  (2) received by it in the capacity
         of paying agent  hereunder,  and (3) filed with it within two preceding
         years  pursuant to the  provisions  of  Paragraph  (2) of Clause (c) of
         Section 14.05.  The Trustee may (1) destroy any list furnished to it as
         provided in Section 9.16 upon receipt of a new list so  furnished;  (2)
         destroy any information  received by it as paying agent upon delivering
         to  itself as  Trustee,  not  earlier  than 45 days  after an  interest
         payment date of the Bonds, a list containing the names and addresses of
         the holders of Bonds obtained from such information  since the delivery
         of the next previous  list,  if any; (3) destroy any list  delivered to
         itself as Trustee which was compiled from information received by it as
         paying  agent  upon the  receipt  of a new list so  delivered;  and (4)
         destroy any  information  received by it pursuant to the  provisions of
         Paragraph (2) of Clause (c) of Section  14.05,  but not until two years
         after such information has been filed with it.

                  (b) In  case  three  or more  holders  of  Bonds  (hereinafter
         referred  to as  "applicants")  apply in  writing to the  Trustee,  and
         furnish to the Trustee  reasonable  proof that each such  applicant has
         owned a Bond for a period of at least six months  preceding the date of
         such  application,  and such  application  states  that the  applicants
         desire to communicate with other holders of Bonds with respect to their
         rights  under  this  Restated  Indenture  or under  the  Bonds,  and is
         accompanied by a copy of the form of proxy or other communication which
         such applicants propose to transmit,  then the Trustee shall,  within 5
         business days after the receipt of such  application,  at its election,
         either

                           (1)   afford  to  such   applicants   access  to  the
                  information preserved at the time by the Trustee in accordance
                  with the provisions of Clause (a) of this Section; or

                           (2)  inform  such  applicants  as to the  approximate
                  number of holders of Bonds whose names and addresses appear in
                  the  information  preserved  at the  time by the  Trustee,  in
                  accordance  with the provisions of Clause (a) of this Section,
                  and as to the approximate  cost of mailing to such Bondholders
                  the form of proxy or other communication, if any, specified in
                  such application.

                  If the Trustee  shall  elect not to afford to such  applicants
         access to such information, the Trustee shall, upon the written request
         of such  applicants,  mail to each  Bondholder  whose name and  address
         appears  in the  information  preserved  at the time by the  Trustee in
         accordance with the provisions of Clause (a) of this Section, a copy of
         the form of proxy or other  communication  which is  specified  in such
         request,  with reasonable  promptness  after a tender to the Trustee of
         the material to be mailed and of payment or  provision  for the payment
         of the reasonable expenses of mailing,  unless within 5 days after such
         tender  the  Trustee  shall mail to such  applicants  and file with the
         Securities and Exchange Commission together with a copy of the material
         to be mailed, a written statement to the effect that, in the opinion of
         the Trustee,  such mailing  would be contrary to the best  interests of
         the holders of Bonds,  or would be in violation of applicable law. Such
         written  statement  shall  specify the basis of such  opinion.  If said
         Commission,  after  opportunity  for  a  hearing  upon  the  objections
         specified  in the  written  statement  so filed,  shall  enter an order
         refusing to sustain any of such objections or if, after the entry of an
         order sustaining one or more of such objections,  said Commission shall
         find,  after  notice  and  opportunity  for a  hearing,  that  all  the
         objections  so  sustained  have  been met and  shall  enter an order so
         declaring,  the Trustee  shall mail copies of such material to all such
         Bondholders  with reasonable  promptness  after the entry of such order
         and the renewal of such tender; otherwise the Trustee shall be relieved
         of  any  obligation  or  duty  to  such  applicants   respecting  their
         application.

<PAGE>

                  (c) The Trustee shall not be held accountable by reason of the
         mailing of any  material  pursuant to any request made under Clause (b)
         of this Section.

         Section 9.18. Annual Compliance Certificate. On or before May 1 in each
calendar  year,  or on or before  such other date in each  calendar  year as the
Company and the Trustee may agree upon,  the Company will deliver to the Trustee
a Certificate  of the Company,  complying  with the  provisions of Section 1.02,
with respect to the  compliance by the Company with the  covenants  contained in
Sections 9.04, 9.05, 9.06, 9.07, 9.10, 9.11, and 9.12, and the Company covenants
and agrees to notify the Trustee  immediately  upon the  occurrence of any event
which  constitutes  an Event of Default (as defined in Section  11.01 hereof) or
which may constitute an Event of Default as the result of the giving of a notice
and/or expiration of a period of grace.


                                   ARTICLE TEN

                               REDEMPTION OF BONDS

         Section 10.01.  Redeemable Bonds. Such of the Bonds issued hereunder as
are by their  terms  redeemable  before  maturity  may,  at the  election of the
Company  evidenced by a  Resolution  of the Board  delivered to the Trustee,  be
redeemed at such times,  in such  amounts and at such prices as may be specified
therein, and in accordance with the provisions of this Article.

         Section 10.02.  Redemption Rights of Existing Bonds. The options of the
Company,  if any, to redeem any of the Existing  Bonds are set forth in Exhibits
B, C, D and E attached hereto.

         Section  10.03.  Notice and  Selection of Bonds.  If the Company  shall
elect to exercise  such right of  redemption,  it shall give  notice  thereof in
accordance with this Section.  Notice of redemption shall be sufficiently  given
if mailed,  postage prepaid, at least 30 days and not more than 50 days prior to
the date on which such  redemption  is to be made, to all  registered  owners of
Bonds to be  redeemed,  at their  addresses as the same shall appear on the Bond
register  of the  Company.  Failure to mail such  notice to any such  registered
owner or owners or any  imperfection  or defect in such notice  shall affect the
validity of the  proceedings  for  redemption.  Each notice of redemption  shall
state such election on the part of the Company and shall  specify,  in case less
than all of the Bonds of a series are to be redeemed, the distinctive numbers of
the Bonds to be redeemed, and shall also state that the interest on the Bonds in
such notice  designated for redemption  shall cease on such  redemption date and
that on said date there will become due and payable  upon each of said Bonds the
redemption  price therein  specified,  at the principal office of the Trustee in
the Borough of Manhattan, The City of New York.

         Any election of the Company  pursuant to Section  10.01 to redeem Bonds
may be  rescinded by the Company at any time prior to the first  publication  or
the mailing of the notice of redemption.

<PAGE>

         In case the  Company  shall have  elected  to redeem  less than all the
outstanding  Bonds of any series,  it shall, in each such instance,  at least 10
days before the date upon which the first  publication  or the mailing of notice
of  redemption  is  required  to be made,  notify the Trustee in writing of such
election  and of the  aggregate  principal  amount of Bonds of such series to be
redeemed.

         The selection of Bonds to be redeemed  shall,  in case less than all of
the outstanding  Bonds of any series are to be redeemed,  be made by the Trustee
either (a) in accordance with the provisions of any agreement,  duly executed by
the owners of all  outstanding  Bonds of such series,  provided that an executed
counterpart of such agreement shall have been filed with the Trustee on or prior
to the date on which the notice aforesaid is received by the Trustee,  or (b) if
the provisions of the preceding Clause (a) shall not be applicable,  the Trustee
shall determine by lot, in any manner in its  discretion,  the serial numbers of
the Bonds to be redeemed and shall certify to the Company the serial  numbers of
the Bonds so to be redeemed.  The Bond so  certified  shall be specified in such
notice by their serial numbers.  In any determination by lot under this Section,
(a) Bonds held by the Company  shall not be  considered  to be  outstanding  and
shall be excluded in making the  determination  of the Bonds to be redeemed  and
(b) each Bond shall be represented  by a separate  number for each $1,000 of its
principal amount. If less than the whole principal amount of any such Bond shall
be called for redemption,  said notice shall also specifically state the portion
of  the  principal  amount  thereof  which  is to be  redeemed  and  that,  upon
presentation of such Bond for partial redemption,  there will be issued, in lieu
of the unredeemed  portion of the principal amount thereof,  a new Bond or Bonds
of an aggregate  principal amount equal to such unredeemed portion, as requested
by the registered owner thereof;  and in such case the Company shall execute and
the Trustee shall  authenticate  and deliver to or upon the written order of the
registered  owner of any such Bond,  at the  expense of the  Company,  a Bond or
Bonds  of the  same  series  (but  only  in  authorized  denominations)  for the
principal  amount of the  unredeemed  portion  of such Bond or, at the option of
such registered owner, the Trustee shall, upon presentation of such Bond for the
purpose, make a notation thereon of the payment of the portion thereof so called
for partial redemption.

         Notice  having  been given as  aforesaid,  the Bonds so to be  redeemed
shall on the date  designated  in such  notice  become  due and  payable  at the
redemption  price so  specified;  and from and after the date of  redemption  so
designated  (unless  the  Company  shall  make  default  in the  payment  of the
redemption  price  of such  Bonds)  interest  on the  Bonds  so  designated  for
redemption  (or in the  case of  partial  redemption  of a Bond  on the  portion
thereof  to be  redeemed)  shall  cease to  accrue,  and upon  surrender  at the
principal  office of the  Trustee in the Borough of  Manhattan,  The City of New
York, in accordance with said notice, of any Bond specified  therein,  such Bond
(or the  portion  thereof to be  redeemed)  shall be paid by the  Company at the
redemption  price  aforesaid.  If the redemption price shall not be so paid upon
surrender thereof, said Bond shall continue to bear interest at the rate therein
specified.

         The Company shall deposit in trust with the Trustee,  prior to the date
designated for redemption,  an amount of money  sufficient to pay the redemption
price of all the Bonds which the Company has elected to redeem on such date.

<PAGE>

         Notwithstanding  the provisions of this Section  10.03,  payment of the
redemption price of a portion of any Bond of any series (for the sinking fund or
otherwise)  shall be made  directly  to the  registered  owner  thereof  without
surrender or presentation thereof to the Trustee if the Company shall have filed
with the Trustee a copy of an agreement  between the Company and such registered
owner providing that such payment will so be made,  that such  registered  owner
will make a notation on such Bond of the portion or portions thereof so redeemed
and that,  if such  registered  owner should sell or  otherwise  dispose of such
Bond,  such  registered  owner,  before  making any delivery of such Bond,  will
surrender  the  same to the  Trustee  for  confirmation  by the  Trustee  of the
notation thereon of the principal amount of such Bond theretofore paid.

         Section 10.04.  Method of Effecting Redemption.  If and so soon as

               A. The  Company  shall  have  duly  elected  to  redeem  any Bond
          pursuant to Section 10.01 and shall have delivered to the Trustee

                           (1) proof  satisfactory to the Trustee that notice of
                  redemption  thereof  has been  mailed as  required  by Section
                  10.03; or

                           (2) a Written  Order of the Company,  expressed to be
                  irrevocable,  authorizing  the  Trustee to give such notice on
                  behalf of the Company;

          and  shall  have  deposited  with  the  Trustee  an  amount  of  money
          sufficient to pay the redemption price of such Bond; or

                  B. The Trustee  shall have  selected  any Bond for  redemption
         pursuant  to  Section  8.08  pursuant  to  any  sinking,  amortization,
         improvement,  renewal  or  other  analogous  fund,  if any,  which  may
         hereafter be created as in Section  2.04  provided  (with  respect to a
         Bond of any other  series);  there being on deposit with the Trustee an
         amount of money sufficient to pay the redemption price of such Bond;

and in either such case

                  C.  The  Company  shall  have   deposited  with  the  Trustee,
         sufficient  funds  for the  payment  of all  interest  on any such Bond
         payable on or before the date  designated for redemption  thereof which
         is not included in the redemption price thereof;

then and in every such case the money held by the Trustee for the  redemption of
such Bond shall, without further act, be deemed forthwith to be reserved for the
benefit of, and shall  constitute a trust fund for, the holder of such Bond, but
no interest shall accrue thereon in his favor. Thereafter,  such Bond (or in the
case of partial  redemption of a Bond, the portion thereof to be redeemed) shall
be excluded from  participation in the lien of this Restated Indenture or in the
Trust Estate.  Money held in trust by the Trustee for the redemption of any Bond
shall not be deemed to be a part of the Trust Estate.


<PAGE>


         Section  10.05.  Cancellation  of Redeemed  Bonds.  All Bonds  redeemed
pursuant to Section 10.03 (except Bonds partially  redeemed and not surrendered,
as permitted by said Section 10.03) shall be canceled by the Trustee.


                                 ARTICLE ELEVEN

                      REMEDIES OF TRUSTEES AND BONDHOLDERS

         Section  11.01.  Events of  Default.  In case one or more of the
following events (herein called "Events of Default") shall happen, that is to
say:

                  A. Default shall be made in the payment of any interest on any
         Bond  issued  hereunder  when  and as the  same  shall  become  due and
         payable,  and any such default shall have  continued for a period of 30
         days; or

                  B.  Default  shall be made in the payment of the  principal of
         any Bond  issued  hereunder  when and as the same shall  become due and
         payable,  whether by the terms thereof or otherwise as herein provided;
         or

                  C. Default shall be made in the due  performance or observance
         of any covenant or  condition  required by Section 9.14 to be performed
         or observed by the Company and any such  default  shall have  continued
         for a period of 30 days; or

                  D. Default shall be made in the due  performance or observance
         of any  covenant  or  condition  required  by the  provisions  for  any
         sinking,  amortization,  improvement,  renewal or other  analogous fund
         with respect to Bonds of any series,  and any such  default  shall have
         continued for a period of 30 days; or

                  E. Default shall be made in the due  performance or observance
         of any other covenant or condition  herein  required to be performed or
         observed  by  the   Company   (except  in  respect  of  the  refund  or
         reimbursement of taxes,  assessments or other governmental  charges for
         which the holders of Bonds may look only to the Company),  and any such
         default  shall have  continued  for a period of 60 days  after  written
         notice  thereof to the Company  from the Trustee or from the holders of
         at least 10% in amount of the Bonds at the time outstanding; or

<PAGE>

                  F.  If  the  Company  shall  be   adjudicated  a  bankrupt  or
         insolvent,  or shall  admit in writing its  inability  to pay its debts
         generally as they come due, or shall make a general  assignment for the
         benefit of creditors or shall file a voluntary  petition in  bankruptcy
         or  under  the  corporate  reorganization  provisions  of  the  Federal
         Bankruptcy Act (as now or hereafter amended) or an answer admitting the
         material allegations of a petition filed against the Company under such
         provisions,  or shall, by voluntary petition,  answer or consent,  seek
         relief  under  the  provisions  of any  other  now  existing  or future
         bankruptcy or other law providing for the reorganization,  dissolution,
         liquidation or winding up of  corporations on the ground of insolvency;
         or

                  G. If the Company shall consent to the  appointment,  upon the
         application  of a creditor or creditors,  of a receiver of itself or of
         the whole or any part of the Trust Estate; or if an order,  judgment or
         decree  shall  be  entered,  upon  the  application  of a  creditor  or
         creditors, by any court of competent jurisdiction  appointing,  without
         the consent of the  Company,  a receiver of the Company or of the whole
         or any  substantial  part of the  Trust  Estate,  and the  receiver  so
         appointed  shall not have been  removed  or  discharged  within 90 days
         thereafter; or

                  H. If a petition against the Company in proceedings  under the
         corporate  reorganization  provisions of the Federal Bankruptcy Act (as
         now or hereafter  amended)  shall be approved by any court of competent
         jurisdiction and such approval shall not be withdrawn or the proceeding
         dismissed within 90 days thereafter,  or if under the provisions of any
         other now existing or future  bankruptcy or other law providing for the
         reorganization,  dissolution, liquidation or winding up of corporations
         on the ground of insolvency,  any court of competent jurisdiction shall
         assume jurisdiction,  custody or control of the Company or of the whole
         or any part of the  Trust  Estate  and such  jurisdiction,  custody  or
         control  shall  not  be  relinquished  or  terminated  within  90  days
         thereafter; or

                  I. If  final  judgment  for the  payment  of  money  shall  be
         rendered  against  the  Company,  and the same shall not be  discharged
         within 60 days from the entry  thereof or an appeal  therefrom  or from
         the order,  decree or  process  upon  which or  pursuant  to which said
         judgment was granted, based or entered, or other appropriate proceeding
         for the appellate review thereof, shall not be taken within said period
         and a stay of execution pending such appeal shall be secured or if such
         appeal be taken and on such appeal such order,  decree or process shall
         be  affirmed  and the  Company  shall not  discharge  said  judgment or
         provide for its  discharge  in  accordance  with its terms within sixty
         days after the entry of the order or decree or affirmance; or

                  J. If any governmental  agency or any court at the instance of
         any governmental agency shall assume,  other than under the exercise of
         eminent domain, custody or control of the whole or any substantial part
         of the Trust Estate, or shall assume control over the Company's affairs
         or operations to the exclusion of management by the Company;


<PAGE>

then,  and in every such case,  if such default or defaults  shall not have been
remedied,  the Trustee  may,  and upon the written  request of the holders of at
least a majority in amount of the Bonds then outstanding  shall, and the holders
of at least 25% in amount of the Bonds may, by notice in writing to the Company,
declare  the  principal  of and  interest on all the Bonds to be due and payable
immediately, and upon any such declaration the same shall become immediately due
and payable,  anything in this Restated  Indenture or in the Bonds  contained to
the  contrary  notwithstanding.  This  provision  is  subject,  however,  to the
condition  that if, at any time after such  declaration,  but before any sale of
the Trust Estate, or any part thereof,  shall have been made under this Article,
all overdue  installments of interest upon all the bonds,  with interest (to the
extent that payment of such interest is  enforceable  under  applicable  law) on
overdue installments of interest at the rate of 6% per annum,  together with all
sums  paid or  advanced  by the  Trustee  under  any  provision  hereof  and the
reasonable and proper  charges,  expenses and  liabilities  of the Trustee,  its
agents,  attorneys  and  counsel,  and all other  sums  payable  by the  Company
hereunder,  except  the  principal  of,  and  interest  accrued  since  the next
preceding  interest date on, the Bonds due and payable  solely by virtue of such
declaration,  shall  either  be paid by or for the  account  of the  Company  or
provision  satisfactory  to the Trustee shall be made for such payment,  and all
Events of Default hereunder shall be remedied, then, and in every such case, the
holders  of at least a  majority  in amount of the Bonds  then  outstanding,  by
written  notice to the  Company and to the  Trustee,  may rescind and annul such
declaration  in its  entirety;  but no such action shall extend to or affect any
subsequent default or impair any right consequent thereon.

         The  Trustee  shall give to the  Bondholders,  in the manner and to the
extent  provided in Clause (c) of Section 14.05,  notice of the happening of any
of the events set forth in the  preceding  Paragraphs  A to J which are known to
it, within 90 days  (exclusive  of days of grace) after the  happening  thereof;
provided,  however,  that,  except in the case of a default  in the  payment  of
principal of or interest on any Bonds outstanding hereunder or in the payment of
any sinking,  purchase or analogous fund  installment,  the Trustee may withhold
the giving of such notice if, and so long as, the withholding of such notice is,
in the judgment of the board of directors,  the  executive  committee or a trust
committee of directors and/or responsible officers of the Trustee,  made in good
faith in the interests of the Bondholders.


<PAGE>

         Section  11.02.  Possession of Trust Estate by Trustee.  In case one or
more of the Events of  Default  shall  happen and shall not have been  remedied,
then,  and in every such case,  to the extent  permitted  by law,  the  Trustee,
personally or by agents or attorneys, may enter into and upon all or any part of
the Trust  Estate  (including  the books,  papers and  financial  records of the
Company,  but excluding money,  securities and property deposited or pledged, or
required  by the terms  hereof to be  deposited  or pledged,  with the  trustee,
mortgagee or other holder of some Prior Lien), and may exclude the Company,  its
agents and  servants,  and all persons  claiming  under the  Company,  wholly or
partly therefrom;  and having and holding the same, may use, operate, manage and
control the Trust Estate and conduct the business thereof,  by  superintendents,
managers,  receivers,  agents, servants and/or attorneys. Upon every such entry,
the Trustee may, from time to time, at the expense of the Trust Estate, make all
such  repairs,  renewals,  replacements  and  useful  or  required  alterations,
additions, betterments and improvements to and on the Trust Estate, as to it may
seem necessary,  proper or judicious.  In each such case, the Trustee shall have
the  right to  manage  the  Trust  Estate  and to carry on the  business  and to
exercise  all  rights  and  powers  of the  Company,  either  in the name of the
Company, or otherwise,  as the Trustee shall deem best, and the Trustee shall be
entitled to collect and receive all earnings,  income, rents, issues and profits
of the same and every part thereof, without prejudice,  however, to any right of
the Trustee as provided in Article  Seven to collect and receive all income from
money,  obligations or other property  deposited or pledged,  or required by the
terms  hereof to be  deposited  or pledged,  with the  Trustee.  Such  earnings,
income,  rents,  issues and  profits  shall be applied  to pay the  expenses  of
holding and operating the Trust Estate and of conducting  the business  thereof,
and of all maintenance, repairs, renewals, replacements, alterations, additions,
betterments and improvements,  and to make all payments which the Trustee may be
required or may elect to make,  if any, for taxes,  assessments,  insurance  and
other  prior  or  proper  charges  upon the  Trust  Estate  or any part  thereof
(including  interest on and principal of Prior Lien Obligations),  and to set up
such  reasonable   reserves  as  the  Trustee  may  deem  advisable  for  taxes,
assessments,  interest and other prior or proper charges,  and to make all other
payments  which the  Trustee may be  required  or  authorized  to make under any
provision  of  this  Restated   Indenture,   as  well  as  just  and  reasonable
compensation  for  the  services  of the  Trustee,  and of all  superintendents,
managers,  receivers,  agents, attorneys,  counsel, servants and other employees
engaged and employed in  conducting  the business of the Company,  and to employ
engineers or accountants  to investigate  and make reports upon the business and
affairs of the Company. The remainder of such income,  rents, issues and profits
shall be applied as follows:

                  In case the principal of the Bonds then outstanding  shall not
         have  become  due and be unpaid,  to the  payment  of the  interest  in
         default,  in the  order of the  maturity  of the  installments  of such
         interest, with interest (to the extent that payment of such interest is
         enforceable  under applicable law) on overdue  installments of interest
         at the rate of 6% per annum;  such  payments to be made  ratably to the
         persons entitled thereto without discrimination or preference, subject,
         however, to the provisions of Section 9.02.

                  In case the  principal  of any of the Bonds  then  outstanding
         shall have  become  due,  by  declaration  or  otherwise,  and shall be
         unpaid,  first to the payment of the  accrued  interest in the order of
         the maturity of the  installments  of such interest  (treating for this
         purpose  each  semiannual  accrual of interest  on overdue  Bonds as an
         installment of interest),  with interest (to the extent that payment of
         such  interest  is  enforceable   under   applicable  law)  on  overdue
         installments  of interest at the rate of 6% per annum,  and then to the
         payment of the whole  amount due and unpaid upon the  principal  of the
         Bonds;  in every  instance  such  payments  to be made  ratably  to the
         persons  entitled  to  such  payments  without  any  discrimination  or
         preference, subject, however, to the provisions of Section 9.02.

<PAGE>

         If and  whenever,  prior to any sale of the Trust  Estate,  or any part
thereof,  all overdue installments of interest upon all the Bonds, with interest
(to the extent that payment of such  interest is  enforceable  under  applicable
law) on overdue  installments of interest at the rate of 6% per annum,  together
with all sums paid or advanced by the Trustee under any provision hereof and the
reasonable and proper  charges,  expenses and  liabilities  of the Trustee,  its
agents,  attorneys  and counsel,  and all other sums then payable by the Company
hereunder,  including  the principal of and all accrued  unpaid  interest on all
Bonds which shall then be payable, by declaration (unless such declaration shall
have been  annulled,  pursuant to Section  11.01) or otherwise,  shall either be
paid by or for the  account of the  Company  or  provision  satisfactory  to the
Trustee  shall be made for such  payment,  and all Events of  Default  hereunder
shall be remedied, the Trustee shall surrender to the Company, its successors or
assigns,  the  possession  of the Trust  Estate  (except  money,  securities  or
property  deposited or pledged,  or required by the terms hereof to be deposited
or pledged, with the Trustee),  and shall pay over upon the Written Order of the
Company the amount, if any there be, of any earnings,  income, rents, issues and
profits  of the  Trust  Estate  then  remaining  unexpended  in the hands of the
Trustee and  thereupon  the  Company and the Trustee  shall be restored to their
former  positions and rights  hereunder in respect of the Trust  Estate,  but no
such surrender  shall extend to or affect any  subsequent  default or impair any
right consequent thereon.

         In case one or more Events of Default  shall  happen and shall not have
been remedied,  the Trustee shall collect and receive all dividends on any stock
and all sums payable for interest on any obligations or indebtedness held by the
Trustee  hereunder,  and the Trustee shall cancel and revoke all assignments and
orders in respect thereof in favor of the Company or its nominee, and all moneys
so received by the Trustee  shall,  prior to any sale of the Trust  Estate under
this Restated Indenture,  be applied to any one or more of the purposes to which
income from the Trust Estate may be applied as provided in this  Section  11.02,
and upon any such sale any  moneys so  received  by the  trustee  and  remaining
unexpended  in its hands  shall be held and  applied  in the same  manner as the
proceeds of such sale; but in every such case,  after the Company's rights shall
have been restored as in this Section 11.02  provided,  the right of the Company
to receive and collect interest and dividends to the extent set forth in Section
7.01, and the duty of the Trustee to execute and deliver  assignments  and order
for the same as provided in Section 7.01, shall revive and continue as though no
Event of Default had  occurred;  and the Trustee shall pay over upon the Written
Order of the  Company  the  amount,  if any there be,  of any such  interest  or
dividends collected or received by the Trustee and then remaining  unexpended in
its hands.

         Section 11.03. Additional Power of Trustee in Event of Default. In case
one or more of the  Events  of  Default  shall  happen  and  shall not have been
remedied,  the Trustee,  by agents or attorneys,  with or without entry,  if the
Trustee shall deem it advisable

                  (a) may sell to the highest  bidder all and singular the Trust
         Estate (if such sale be  permitted by the laws of the  jurisdiction  or
         jurisdictions wherein the Trust Estate shall be located),  such sale to
         be made at public  auction  at such place or places and at such time or
         times and upon such terms as the Trustee may fix in compliance with law
         and  briefly  specify  in the  notice  of sale to be  given  as  herein
         provided or as may be required by law; or

                  (b) may  proceed to  protect  and  enforce  its rights and the
         rights of the Bondholders under this Restated  Indenture,  by a suit or
         suits in equity or at law, whether for the specific  performance of any
         covenant  herein  contained,  or in aid of the  execution  of any power
         herein granted,  or for the  foreclosure of this Restated  Indenture or
         for the  enforcement  of any other  legal or  equitable  right,  as the
         Trustee, being advised by counsel, shall deem most effectual to enforce
         any of its rights or to perform any of its duties hereunder.


<PAGE>

         Section 11.04.  Bondholders'  Right to Direct Action.  Upon the written
request  of the  holders  of at least a  majority  in amount  of the Bonds  then
outstanding, in case of the happening of any Event of Default, if the same shall
not  have  been  remedied,  it  shall be the  duty of the  Trustee,  upon  being
indemnified  as  provided  in Section  14.02,  if under the  provisions  of said
Section  it is  entitled  to demand  indemnity,  to take all such  steps for the
protection  and  enforcement  of its rights and the rights of the holders of the
Bonds, or to take such appropriate  judicial  proceedings as the Trustee,  being
advised by counsel,  shall deem most expedient in the interest of the holders of
the Bonds.

         Section 11.05. Notice of Sale by Trustee.  Notice of any sale under the
power of sale herein  granted  shall state the time when and the place where the
same is to be made, and shall contain a brief  description of the property to be
sold,  and  shall  be  sufficiently  given  if  published  once  in each of four
successive calendar weeks prior to such sale in an Authorized Newspaper,  in the
Borough of Manhattan,  The City of New York (upon any day of the week and in any
such newspaper,  the first publication to be made not less than 30 days nor more
than 40 days prior to such sale), and in such other manner as may be required by
law.

         Section  11.06.  Adjournment of Sale. The Trustee may from time to time
adjourn  any sale to be made under the power of sale  granted  by this  Restated
Indenture,  by announcement at the time and place appointed for such sale or for
any adjournment  thereof;  and without further notice or publication except such
as may be required by  applicable  law, may make such sale at the time and place
to which the same shall have been so adjourned.

         Section  11.07.  Conveyance to  Purchasers.  Upon the completion of any
sale or sales  under this  Restated  Indenture,  the Trustee  shall  execute and
deliver to the accepted  purchaser or purchasers a good and  sufficient  deed or
deeds of  conveyance,  and such  other  instruments  as in the  judgment  of the
Trustee may be desirable or proper,  conveying,  assigning and  transferring the
properties  and rights sold;  and the Trustee  hereunder at such time, is hereby
irrevocably  appointed the true and lawful attorney of the Company,  in its name
and stead,  to make all  necessary  deeds and  conveyances  of the property thus
sold;  and for that  purpose the Trustee  may  execute all  necessary  deeds and
instruments  of  assignment  and  transfer,  the Company  hereby  ratifying  and
confirming all that its said attorneys shall lawfully do by virtue hereof.

         Any  such  sale or  sales  made  under or by  virtue  of this  Restated
Indenture,  whether  under  the  power of sale  herein  granted  or by virtue of
judicial  proceedings,  shall, to the full extent  permitted by law,  operate to
divest all right, title, interest, claim and demand whatsoever, either at law or
in equity,  of the  Company of, in and to the  property so sold,  and shall be a
perpetual  bar, both at law and in equity,  against the Company,  its successors
and  assigns,  and  against  any and all  persons  claiming or who may claim the
property  sold, or any part  thereof,  from,  through or under the Company,  its
successors or assigns.


<PAGE>

         The receipt of the Trustee or of the court officer  conducting any such
sale shall be a full and  sufficient  discharge to any purchaser of any property
sold as  aforesaid,  for the  purchase  money;  and no  such  purchaser,  or his
representatives,  grantees or assigns,  after  paying  such  purchase  money and
receiving  such  receipt,  shall  be  bound  to see to the  application  of such
purchase money upon or for any trust or purpose of this Restated  Indenture,  or
in  any  manner  whatsoever  be  answerable  for  any  loss,  misapplication  or
nonapplication  of any such purchase  money or any part thereof,  or be bound to
inquire as to the authorization, necessity, expediency or regularity of any such
sale.

         Section 11.08.  Sale as an Entirety Unless Holders Otherwise Direct. In
the event of any sale under this  Article,  whether made under the power of sale
herein  granted  or by virtue of  judicial  proceedings,  the whole of the Trust
Estate shall (if permitted under applicable law) be sold in one parcel and as an
entirety,  unless the holders of at least a majority in amount of the Bonds then
outstanding  shall in writing  request the Trustee to cause said  property to be
sold in parcels,  in which case (to the extent  permitted by applicable law) the
sale  shall be made in such  parcels as may be  specified  in such  request,  or
unless such sale as an entirety is  impracticable  by reason of some  statute or
other cause.

         Section  11.09.  Accrual of Interest  Upon Sale. In case of any sale of
the Trust Estate,  or any part thereof,  under this Article,  whether made under
the power of sale  herein  granted,  or by virtue of judicial  proceedings,  the
principal  of and  accrued  interest on all the Bonds then  outstanding,  if not
already due, shall immediately become due and payable,  anything in the Bonds or
in this Restated Indenture to the contrary notwithstanding.

         Section  11.10.  Application of Proceeds of Sale.  The purchase  money,
proceeds and avails of any such sale shall be applied as follows:

                  First:  To the payment of the costs and expenses of such sale,
         including  a  reasonable  compensation  to  the  Trustee,  its  agents,
         attorneys  and counsel,  and of all charges,  expenses and  liabilities
         incurred (and all advances made) without negligence or bad faith by the
         Trustee in managing  and  maintaining  the Trust Estate or in executing
         any trust or power  hereunder,  and, if in conformity  with  applicable
         law,  to the  payment of all taxes,  assessments  or liens prior to the
         Lien of this Restated Indenture, except any taxes, assessments or other
         superior liens subject to which such sale shall have been made;

                  Second: To the payment of the whole amount then due and unpaid
         upon the Bonds then  outstanding,  for  principal  and  interest,  with
         accrued  interest on the  principal,  and with  interest (to the extent
         that payment of such interest is enforceable  under  applicable law) on
         the overdue  installments of interest at the rate of 6% per annum;  and
         in cash such proceeds  shall be  insufficient  to pay in full the whole
         amount so due and unpaid  upon the Bonds,  then to the  payment of such
         principal  and  interest,  without  preference or priority of principal
         over interest or of interest over  principal or of any  installment  of
         interest over any other  installment  of interest,  or of any series of
         the Bonds over any other series of the Bonds,  ratably according to the
         aggregate  so due  for  such  principal  and  the  accrued  and  unpaid
         interest, at the date fixed by the Trustee for the distribution of such
         moneys, subject, however, to the provisions of Section 9.02; and

<PAGE>
                  Third: The surplus, if any, shall be paid to the Company,  its
         successors  or assigns,  or to whomsoever  may be lawfully  entitled to
         receive the same or as a court of competent jurisdiction may direct.

         Any other  sums  which may be held by the  Trustee as part of the Trust
Estate at the time of such  application  of the  purchase  money,  proceeds  and
avails of any such  sale,  as  aforesaid,  shall be applied  together  with such
purchase money,  proceeds,  and avails,  in the manner provided in the foregoing
Paragraphs First, Second and Third, but shall not be separately so applied.

         Section 11.11. Use of Bonds to Pay for Property. In case of any sale as
aforesaid  of the  Trust  Estate  or any part  thereof  any  purchaser  shall be
entitled,  for the  purpose of making  settlement  or payment  for the  property
purchased,  to use and apply any Bonds then outstanding and claims for interest,
in order that there may be  credited  thereon  the sums  payable  out of the net
proceeds  of such sale to the  holder of such  Bonds and  claims  for  interest,
subject to the  provisions  of Section  9.02,  as his ratable  share of such net
proceeds;  and thereupon  such purchaser  shall be credited,  on account of such
purchase  price,  with the portion of such net proceeds that shall be applicable
to the payment of, and that shall have been credited  upon, the Bonds and claims
for interest so used and applied;  and at any such sale,  any  Bondholder or the
Trustee may bid for and purchase the property offered for sale, may make payment
on account thereof as aforesaid, and upon compliance with the terms of sale, may
hold,  retain  and  dispose  of such  property  without  further  accountability
therefor.

         Section 11.12. Other Rights of Trustee in Event of Default. Upon filing
a bill in equity or upon  other  commencement  of  judicial  proceedings  by the
Trustee to enforce any right under this Restated Indenture, the Trustee shall be
entitled to exercise any and all other rights and powers  herein  conferred  and
provided to be  exercised  by the  Trustee  upon the  occurrence  of an Event of
Default.

         Section 11.13.  Recovery of Judgment.  The Company covenants that

                  (1) in  case  default  shall  be made  in the  payment  of any
         interest on any Bond when and as the same shall become due and payable,
         and any such default shall have continued for a period of 30 days, or

                  (2) in  case  default  shall  be made  in the  payment  of the
         principal  of any  Bond  when  and as the  same  shall  become  due and
         payable, whether by the terms thereof or otherwise as herein provided,

<PAGE>

then,  and upon demand of the  Trustee,  the Company will pay to the Trustee for
the benefit of the holders of the Bonds in respect of which such  default  shall
be made,  the whole amount due and payable on all such Bonds,  for principal and
interest,  including the  redemption  price of any Bonds called for  redemption,
with  interest  upon the overdue  principal  and, to the extent that the same is
enforceable  under  applicable  law,  interest  upon  overdue   installments  of
interest,  in each  case at the rate of 6% per  annum;  and in case the  Company
shall fail to pay the same forthwith upon such demand,  the Trustee,  in its own
name, and as trustee of an express trust,  shall be entitled to recover judgment
for the whole amount so due and unpaid.

         To the  extent  permitted  by  applicable  law,  the  Trustee  shall be
entitled to recover  judgment as aforesaid  either  before,  after or during the
pendency of any  proceedings  for the  enforcement  of the lien of this Restated
Indenture,  and the right of the Trustee to recover such  judgment  shall not be
affected by any entry or sale  hereunder  or by the exercise of any other right,
power or remedy for the enforcement of the provisions of this Restated Indenture
or the foreclosure of the lien hereof. In case of a sale of the Trust Estate and
the  application  of the  proceeds  of sale to the  payment  of the  Bonds,  the
Trustee,  in its own name and as trustee of an express trust,  shall be entitled
to enforce payment of, and to receive, all amounts then remaining due and unpaid
upon any and all of the Bonds then  outstanding,  for the benefit of the holders
thereof,  and shall be entitled to recover  judgment for any portion of the same
remaining unpaid, with interest. No recovery of any such judgment by the Trustee
shall in any manner or to any extent  affect  the lien of the  Trustee  upon the
Trust  Estate or any part  thereof  or any  rights,  powers or  remedies  of the
Trustee hereunder or any rights, powers or remedies of the holders of the Bonds;
but such lien, rights, powers and remedies shall continue unimpaired as before.

         All moneys collected by the Trustee under this Section shall be applied
as follows:

                  First:  To  the  payment  of the  costs  and  expenses  of the
         proceedings  resulting  in the  collection  of such  moneys,  including
         counsel fees, and of the charges, expenses and liabilities incurred and
         all advances made by the Trustee,  without  negligence or bad faith, in
         theretofore  managing and  maintaining the Trust Estate or in executing
         any trust or power hereunder; and

                  Second: To the payment of the amounts then due and unpaid upon
         the Bonds in  respect  of which or for the  benefit of which or for the
         benefit of which such  moneys  shall have been  collected,  ratably and
         without any  preference  or priority of any kind (except as provided in
         Section 9.02)  according to the amounts due and payable upon such Bonds
         at the date fixed by the Trustee for the distribution of such moneys.

         Section 11.14.  Restrictions on Rights of Bondholders and Unconditional
Obligation  of Company.  No holder of any Bond issued  hereunder  shall have any
right to institute  any suit,  action or  proceeding at law or in equity for the
foreclosure  of this  Restated  Indenture  or for the  execution  of any  trusts
hereunder  or for  the  appointment  of a  receiver  or  for  any  other  remedy
hereunder, unless

                  (a) such  holder  shall have  previously  given to the Trustee
         written  notice  of  the   occurrence  of  an  Event  of  Default,   as
         hereinbefore provided; and

<PAGE>

                  (b) the  holders of at least a majority in amount of the Bonds
         then outstanding shall have filed a written request with the Trustee to
         exercise the powers  hereinbefore  granted or to institute such action,
         suit or proceeding in the name of the Trustee; and

                  (c) said holders shall have tendered to the Trustee reasonable
         security or indemnity against the costs, expenses and liabilities to be
         incurred by compliance  with such  request,  if the Trustee is entitled
         under the provisions of Section  14.02,  to such security or indemnity;
         and

                  (d) the Trustee  shall have  refused or omitted to comply with
         such request for a period of 90 days after such written  request  shall
         have been filed with,  and said tender of indemnity  (if the Trustee is
         entitled thereto as aforesaid) shall have been made to, the Trustee.

         Such  notification,  request and tender of indemnity (if the Trustee is
entitled thereto as aforesaid) are hereby declared, in every case, at the option
of the Trustee, but subject to the provisions of Section 14.02, to be conditions
precedent to any action or cause of action for  foreclosure or for the execution
of any trusts  hereunder or for the  appointment  of a receiver or for any other
remedy  hereunder;  it being understood and intended that no one or more holders
of Bonds shall have any right in any manner  whatever by his or their  action to
affect,  disturb or prejudice the lien of this Restated  Indenture or to enforce
any  right  hereunder,  except  in the  manner  herein  provided;  and  that all
proceedings  at law or in equity  to  enforce  any  provision  of this  Restated
Indenture shall be instituted,  had and maintained in the manner herein provided
and for the equal benefit of all holders of the  outstanding  Bonds  (subject to
the provisions of Section 9.02).

         It is,  however,  expressly  provided  that  nothing  in this  Restated
Indenture or in the Bonds contained shall affect or impair the obligation of the
Company, which is absolute and unconditional,  to pay at the respective dates of
maturity and places therein expressed the principal of and interest on the Bonds
to the respective  holders of the Bonds or affect or impair the right of action,
which is also  absolute  and  unconditional,  of such  holders to  enforce  such
payment.  Neither  enforcement  by any such  holder  of such  right of action in
respect of any Bond nor entry of any judgment  thereon shall in any manner or to
any extent  affect  the lien of the  Trustee  upon the Trust  Estate or any part
thereof,  or any rights,  powers or remedies  hereunder of the Trustee or of the
holders of the Bonds,  except to the  extent if any that the  rights,  powers or
remedies of such holder with  respect to such Bond may under  applicable  law be
affected thereby.

         Section 11.15. Remedies Cumulative. Except as herein expressly provided
to the contrary,  no remedy herein  conferred upon or reserved to the Trustee or
to the holders of Bonds is intended to be  exclusive  of any other  remedy,  but
each and every such remedy shall, to the extent  permitted by applicable law, be
cumulative and shall be in addition to every other remedy given hereunder or now
or hereafter existing at law or in equity or by statute.

<PAGE>

         Section  11.16.  No  Waiver  for  Delay.  No delay or  omission  of the
Trustee,  or of any holder of Bonds to exercise any right or power  arising upon
the  happening of any Event of Default  shall impair any right or power or shall
be construed to be a waiver of any such default or an acquiescence  therein; and
every  power  and  remedy  given  by  this  Article  to  the  Trustee  or to the
Bondholders,  may, subject to the provisions of Section 11.14, be exercised from
time to time and as often as may be deemed  expedient  by the  Trustee or by the
Bondholders.

         All rights of action under this  Restated  Indenture may be enforced by
the Trustee without the possession of any of the Bonds or the production thereof
on the trial or other proceedings,  and any such suit or proceedings  instituted
by the Trustee shall be brought in its name.

         The Trustee shall be entitled and empowered  either in its own name and
as trustee of an express trust,  or as  attorney-in-fact  for the holders of the
Bonds,  or in any one or more  such  capacities,  to file  such  proof  of debt,
amendment  of  proof of  debt,  claim,  petition  or  other  document  as may be
necessary  or  advisable  in order to have the  claims of the  holders  of Bonds
allowed  in  any  equity  receivership,   insolvency,  bankruptcy,  liquidation,
readjustment,  reorganization or other similar  proceedings,  or in any judicial
proceedings,  relative  to the Company or its  creditors  or its  property.  The
Trustee is hereby irrevocably  appointed (and the successive  respective holders
of the Bonds by taking and holding  the same,  shall be  conclusively  deemed to
have so  appointed  the  Trustee)  the true and lawful  attorney-in-fact  of the
respective  holders  of the  Bonds,  with  authority  to  make  or  file  in the
respective  names of the holders of the Bonds as a class  (subject to  deduction
from any such claim of the  amounts of any claim  filed by any of the holders of
the Bonds  themselves),  any proof of debt,  amendment of proof of debt,  claim,
petition or other document in any such proceedings and to receive payment of any
sums becoming  distributable on account thereof, and to execute and other papers
and  documents  and do and perform any and all acts and things for and on behalf
of such holders of the Bonds, as may be necessary or advisable in the opinion of
the Trustee,  in order to have the respective claims of the holders of the Bonds
against the Company and/or its property allowed in any such  proceeding,  and to
receive payment of or on account of such claims; provided, however, that nothing
herein  contained shall be deemed to authorize or empower the Trustee to consent
to or accept or adopt, on behalf of any Bondholder,  any plan of  reorganization
or readjustment of the Company affecting the Bonds.

         Section 11.17.  Trustee's  Power to Institute  Legal  Proceedings.  The
Trustee shall have power to institute and to maintain such suits and proceedings
as it may be advised by counsel  shall be  necessary or expedient to prevent any
impairment  of the  security  hereunder  by any acts which may be unlawful or in
violation of this Restated  Indenture,  and such suits and proceedings as it may
be advised by counsel shall be necessary or expedient to preserve or protect its
interests  and the interests of the  Bondholders  in respect of the Trust Estate
and in respect of the income,  earnings,  issues and profits arising  therefrom,
but nothing herein contained shall be deemed to limit the duties and obligations
of the Trustee set forth in Section 14.02.

<PAGE>

         Section 11.18.  Failure of Remedy Restores Rights.  In case the Trustee
shall have  proceeded  to enforce any right  under this  Restated  Indenture  by
foreclosure,   entry  or  otherwise,   and  such  proceeding   shall  have  been
discontinued or abandoned for any reason or shall have been determined adversely
to the Trustee,  then, and in every such case, the Company and the Trustee shall
without further act be restored to their former  positions and rights  hereunder
in respect  of the Trust  Estate,  and all  rights,  remedies  and powers of the
Trustee shall continue as though no such proceedings had been taken.

         Section  11.19.  Holders of Majority May Direct  Proceedings.  Anything
contained  in this  Restated  Indenture  to the  contrary  notwithstanding,  the
holders  of at least a majority  in amount of the Bonds at the time  outstanding
shall have the right,  at any time,  by  instrument  or  instruments  in writing
executed and delivered to the Trustee,  to direct the method,  time and place of
conducting  all  proceedings to be taken for any sale of the Trust Estate or for
the foreclosure of this Restated  Indenture or for the appointment of a receiver
or any other proceedings hereunder; provided, however, that such direction shall
not be otherwise than in accordance with law and the provisions of this Restated
Indenture,  and that the  Trustee  shall have the right to decline to follow any
such direction which in its opinion would be unjustly prejudicial to Bondholders
not parties to such direction,  but, subject to the provisions of Section 14.02,
shall be fully  protected  with  respect to any action taken or omitted by it in
good faith in accordance with such direction.

         Section 11.20.  Company's Waiver of Certain Rights. The Company agrees,
to the full extent that it may  lawfully so agree,  that it will not at any time
insist  upon or plead or in any manner  whatever,  claim or take the  benefit or
advantage of any appraisement,  valuation, stay, extension or redemption law now
or  hereafter  in force,  in order to  prevent  or  hinder  the  enforcement  or
foreclosure of this Restated  Indenture or the absolute sale of the Trust Estate
or the  possession  thereof by any  purchaser  at any sale made  pursuant to any
provision  hereof,  or  pursuant  to  the  decree  of  any  court  of  competent
jurisdiction; but the Company, for itself and all who may claim through or under
it, so far as it now or hereafter lawfully may, hereby waives the benefit of all
such laws.  The  Company,  to the full  extent  that it may  lawfully do so, for
itself and all who may claim  through  or under it,  waives any and all right to
have the property included in the Trust Estate marshaled upon any foreclosure of
the lien hereof, and agrees that any court having jurisdiction to foreclose such
lien may sell the Trust Estate as an entirety.

         If any law in this Section  referred to and now in force,  of which the
Company  or its  successor  or  successors  might  take  advantage  despite  the
provisions hereof, shall hereafter be repealed or cease to be in force, such law
shall not  thereafter  be deemed to constitute  any part of the contract  herein
contained or to preclude the operation or  application of the provisions of this
Section.

<PAGE>

         Section  11.21.  No  Recourse  Against   Stockholders,   Directors  and
Officers.  No  recourse  under or upon any  obligation,  covenant  or  agreement
contained in this Restated Indenture or in any Bond issued hereunder or under or
upon any indebtedness  hereby secured or arising out of this Restated Indenture,
shall be had against any  incorporator,  stockholder,  officer or  director,  as
such, past, present or future, of the Company or of any predecessor or successor
corporation,  either directly or through the Company or any such  predecessor or
successor corporation, whether by virtue of any constitution, statute or rule of
law or by the  enforcement  of any  assessment  or  penalty  or by any  legal or
equitable  proceeding  or  otherwise  howsoever.  It  is  expressly  agreed  and
understood  that this  Restated  Indenture  and the Bonds are  solely  corporate
obligations and that no personal  liability  whatever does or shall attach to or
be incurred by the  incorporators,  stockholders,  officers or  directors of the
Company or of any predecessor or successor corporation,  or any of them, because
of the indebtedness  represented by the Bonds or implied therefrom; and that any
and all personal liability of every name and nature,  either at common law or in
equity or by statute or constitution,  of every such incorporator,  stockholder,
officer or director,  is hereby expressly waived and released as a condition of,
and as part of the consideration  for, the execution of this Restated  Indenture
and the issuance of the Bonds; provided,  however, that nothing herein contained
shall be taken to prevent  recourse to and the enforcement of the liability,  if
any, of any  shareholder  or any  stockholder or any subscriber to capital stock
upon or in respect of shares of capital stock not fully paid up.

         Section 11.22. Obligor Not Entitled to Distribution.  No Bonds owned or
held by,  for the  account  of or for the  benefit  of the  Company or any other
obligor on the Bonds (other than Bonds pledged to secure an obligation) shall be
deemed  entitled to share in any payment or  distribution  provided  for in this
Article Eleven.


                                 ARTICLE TWELVE

                        EVIDENCE OF RIGHTS OF BONDHOLDERS

         Section 12.01. Bondholder Concurrent Writings. Any request,  consent or
other instrument  required by this Restated  Indenture to be signed and executed
by  Bondholders  may be in any number of  concurrent  writings of  substantially
similar tenor and may be signed or executed by such  Bondholders in person or by
agent or agents duly  appointed in writing.  Proof of the  execution of any such
request or other  instrument or of a writing  appointing  any such agent,  or of
holding by any person of Bonds transferable by delivery, shall be sufficient for
any purpose of this  Restated  Indenture and shall be conclusive in favor of the
Company and,  subject to the provisions of Sections 9.17 and 14.02,  in favor of
the Trustee, if made in the manner provided in this Article.

         Section 12.02.  Proof of Execution by Bondholder.  The fact and date of
the execution by any person of any such request,  consent or other instrument or
writing may be proved by the affidavit of a witness of such  execution or by the
certificate  of  any  notary  public  or  other  officer  of  any  jurisdiction,
authorized by the laws thereof to take acknowledgments of deeds, certifying that
the person signing such request, consent or other instrument acknowledged to him
the execution thereof.

         Section 12.03.  Register Proves Ownership of Bond.  The ownership of
Bonds shall be proved by the register of such Bonds.

         The foregoing  provisions of this Article are subject to the provisions
of Article  Seventeen  with  respect to the calling of and voting at meetings of
Bondholders.

<PAGE>

         Any request, consent or vote of the holder of any Bond shall bind every
future  holder of the same Bond and the holder of every Bond  issued in exchange
therefor or in lieu thereof,  in respect of anything done or suffered to be done
by the Trustee or the Company in pursuance of such request, consent or vote.


                                ARTICLE THIRTEEN

                    MERGER, CONSOLIDATION, TRANSFER OR LEASE

         Section 13.01. Conditions of Merger. Nothing in this Restated Indenture
contained shall prevent any  consolidation or merger of the Company with or into
any other  corporation or  corporations,  or any conveyance,  transfer or lease,
subject to the Lien of this Restated Indenture,  of all or substantially all the
Trust Estate as an entirety to any corporation  lawfully  entitled to acquire or
lease and operate the same;  provided,  however,  and the Company  covenants and
agrees, that such consolidation,  merger, conveyance, transfer or lease shall be
upon terms as fully to preserve and in no respect to impair the lien or security
of this Restated  Indenture or any of the rights or powers of the Trustee or the
Bondholders  hereunder;  provided  further,  that every such lease shall be made
expressly  subject to  termination  by the Company or by the Trustee at any time
upon the happening of an Event of Default  hereunder,  and also by the purchaser
at any sale hereunder of the property so leased, whether such sale be made under
the power of sale hereby conferred or pursuant to judicial proceedings; provided
further,  that,  upon and in  connection  with any such  consolidation,  merger,
conveyance  or transfer,  the due and punctual  payment of the  principal of and
interest on all the Bonds  according  to their  tenor,  and the due and punctual
performance  and observance of all the covenants and conditions of this Restated
Indenture to be  performed  or observed by the Company,  shall be assumed by the
successor  corporation  formed by such  consolidation  or into which such merger
shall  have  been  made or which  acquires  by  conveyance  or  transfer  all or
substantially  all  the  Trust  Estate  as  an  entirety;   and  such  successor
corporation shall execute and deliver to the Trustee,  simultaneously  with such
consolidation,  merger, conveyance or transfer, an indenture supplemental hereto
containing

                           (1)  an  agreement  on the  part  of  such  successor
                  corporation punctually to make all the payments and to perform
                  and observe all the covenants and  conditions of this Restated
                  Indenture which are to be made or performed or observed by the
                  Company, with the same effect and to the same extent as if the
                  maker of such  agreement  had been the party of the first part
                  hereto, and

                           (2) a grant, conveyance, transfer and mortgage of the
                  character  described  in Paragraph A or Paragraph B of Section
                  13.02;

<PAGE>

provided  further,  that, upon and in connection with any such lease, the lessee
under such lease shall execute and deliver to the Trustee,  simultaneously  with
such lease, an indenture  supplemental  hereto  containing a grant,  conveyance,
transfer and mortgage  subjecting to the direct Lien of this Restated  Indenture
all  properties  and  franchises  of the  character  described in Paragraph B of
Section 13.02 which may be acquired by such lessee after the date of such lease.

         Section 13.02. Conditions of Successor to Succeed to Rights of Company.
In case the Company,  pursuant to Section 13.01,  shall be consolidated  with or
merged into any other  corporation or  corporations or shall convey or transfer,
subject to the Lien of this Restated Indenture,  all or substantially all of the
Trust  Estate  as  an  entirety,   the  successor  corporation  formed  by  such
consolidation  or into which the  Company  shall have been merged or which shall
have received a conveyance or transfer as aforesaid, upon causing to be recorded
the supplemental  indenture  referred to in said Section 13.01, shall succeed to
and be substituted  for the Company with the same effect as if it had been named
herein  as the party of the  first  part,  subject,  however,  to the  following
limitations and restrictions:

                  A. If said  supplemental  indenture  shall  contain  a  grant,
         conveyance,  transfer and mortgage in terms  sufficient  to include and
         subject  to the  Lien of  this  Restated  Indenture  all  property  and
         franchises  then  owned and which may be  thereafter  acquired  by such
         successor  corporation  (other than Excepted  Property),  thereupon and
         thereafter such successor corporation may cause to be executed,  either
         in its own name or in the name of the  Company,  and  delivered  to the
         Trustee for authentication,  any Bonds issuable hereunder; and upon the
         order of such successor corporation in lieu of the Company, and subject
         to  all  the  terms,  conditions  and  restrictions  in  this  Restated
         Indenture prescribed, the Trustee shall authenticate and deliver any of
         the Bonds which shall have been  previously  executed and  delivered by
         the Company to the Trustee  for  authentication,  and any of such Bonds
         which such successor  corporation shall thereafter,  in accordance with
         the  provisions  of this Restated  Indenture,  cause to be executed and
         delivered to the Trustee for such purpose.  Such changes in phraseology
         and form  (but not in  substance)  may be made in such  Bonds as may be
         appropriate  in view of such  consolidation  or merger or conveyance or
         transfer.  All such Bonds  when  issued by such  successor  corporation
         shall in all  respects  have the same  legal rank and  security  as the
         Bonds   theretofore  or  thereafter   authenticated  and  delivered  in
         accordance  with the terms of this Restated  Indenture  and issued,  as
         though all of said Bonds had been  issued at the date of the  execution
         hereof.

<PAGE>

                  B. If said supplemental indenture shall not contain the grant,
         conveyance,  transfer and mortgage described in the preceding Paragraph
         A, then such successor corporation shall not be entitled to procure the
         authentication  and  delivery  of Bonds  hereunder  pursuant to Article
         Four, Five or Six, and  (notwithstanding the generality of the Granting
         Clauses)  this  Restated   Indenture  shall  not,  by  virtue  of  such
         consolidation,  merger,  conveyance  or transfer,  or by virtue of said
         supplemental  indenture,  become a lien upon any of the  properties  or
         franchises  of such  successor  corporation  owned by it at the time of
         such  consolidation,   merger,  conveyance  or  transfer  (unless  such
         successor corporation, in its discretion, shall subject the same to the
         lien hereof),  but this Restated  Indenture  shall become and be a lien
         upon the following, and only the following, properties acquired by such
         successor  corporation  after the date of such  consolidation,  merger,
         conveyance or transfer, to wit:

                           (1)  all   betterments,   extensions,   improvements,
                  additions, repairs, renewals, replacements,  substitutions and
                  alterations  to,  upon,  for and of the Trust  Estate  and all
                  property constituting appurtenances of the Trust Estate;

                           (2) all  Property  Additions  made  the  basis of the
                  withdrawal  of cash  from the  Trustee  or from  the  trustee,
                  mortgagee or other  holder of a Prior Lien,  or the release of
                  property  from the Lien of this  Restated  Indenture;  and all
                  property  acquired  or  constructed  with the  proceeds of any
                  insurance on any part of the Trust Estate; and

                           (3) all  property  acquired in  pursuance  of Section
                  9.05 or of any other  covenants  herein  contained to maintain
                  and  preserve  and keep the Trust  Estate  in good  condition,
                  repair  and  working  order,  or in  pursuance  of some  other
                  covenant or agreement  herein contained to be performed by the
                  Company;

         and in such event said  supplemental  indenture  shall contain a grant,
         conveyance,  transfer and mortgage subjecting the property described in
         the preceding  Clauses (1), (2) and (3) of this Paragraph to the direct
         Lien of this Restated Indenture.


                                ARTICLE FOURTEEN

                             CONCERNING THE TRUSTEE

         Section 14.01. Qualification of Trustee. The Trustee shall at all times
be a corporation  eligible  under Section 14.07 and have a combined  capital and
surplus  of not less  than  $1,000,000.  If the  Trustee  publishes  reports  of
condition  at least  annually,  pursuant  to law or to the  requirements  of any
supervising or examining  authority  referred to in Section 14.07,  then for the
purposes of this Section the combined capital and surplus of the Trustee,  shall
be deemed to be its combined capital and surplus as set forth in its most recent
report of condition so published.

         Section 14.02.  Trustee's Duties and Obligations.

                  (a) The Trustee for itself and its  successors  hereby accepts
         the  trusts of this  Restated  Indenture.  In case an Event of  Default
         shall happen and shall not be remedied, the Trustee shall exercise such
         of the rights and powers  vested in it by this  Restated  Indenture and
         use the same  degree of care and skill in their  exercise  as a prudent
         man would exercise or use under the circumstances in the conduct of his
         own affairs.



<PAGE>


                  (b) None of the provisions of this Restated Indenture shall be
         construed as relieving the Trustee from liability for its own negligent
         action, its own negligent failure to act, or its own wilful misconduct,
         except that

                           (1)  Unless an Event of Default  shall have  happened
                  and shall not have been  remedied,  the Trustee shall be under
                  no duty with respect to the  performance  of any duties except
                  such as are specifically set forth in this Restated Indenture,
                  and no implied  covenant or obligation shall be read into this
                  Restated  Indenture  against the  Trustee,  but the duties and
                  obligations  of the Trustee shall be determined  solely by the
                  express provisions of this Restated Indenture.

                           (2)  Unless an Event of Default  shall have  happened
                  and shall not have been  remedied,  the  Trustee  may,  in the
                  absence  of  bad  faith  on the  part  of  the  Trustee,  rely
                  conclusively,  as to the  truth  of  the  statements  and  the
                  correctness  of  the  opinions  expressed  therein,  upon  any
                  certificate  or  opinion  furnished  to  it  pursuant  to  and
                  conforming to the  requirements  of this  Restated  Indenture;
                  provided,   however,   that  the  trustee  shall  examine  any
                  certificate  or opinion  required to be furnished to it by the
                  Company  under any  provision  of this  Restated  Indenture to
                  determine  whether such certificate or opinion conforms to the
                  requirements of this Restated Indenture.

                           (3) The Trustee  shall not be liable for any error of
                  judgment  made in  good  faith  by a  responsible  officer  or
                  officers  of the  Trustee,  unless it shall be proved that the
                  Trustee was negligent in ascertaining the pertinent facts.

                           (4)  None  of  the  provisions  in  this  Restated
                  Indenture  contained  shall  require the Trustee to advance or
                  expend  or risk its own  funds  or  otherwise  incur  personal
                  financial liability in the performance of any of its duties or
                  in the  exercise  of any of its  rights  or powers if there is
                  reasonable  ground for  believing  that the  repayment of such
                  funds or liability is not reasonably  assured to it (i) by the
                  security  afforded  to  it  by  the  terms  of  this  Restated
                  Indenture,   or  (  ii  )  by  other  reasonable  security  or
                  indemnity.

                           (5) The  recitals  herein and in the Bonds  contained
                  shall be taken as the  statements of the Company and shall not
                  be  considered  as made by,  or  imposing  any  obligation  or
                  liability  upon,  the  Trustee,  and the  Trustee  assumes  no
                  responsibility  for the  correctness  of the same. The Trustee
                  makes no  representations  as to the value or condition of the
                  Trust  Estate or any part  thereof,  or as to the title of the
                  Company  thereto  or as to the  validity  or  adequacy  of the
                  security afforded thereby, or hereby, or as to the validity of
                  this  Restated  Indenture  or of the Bonds or  coupons  issued
                  hereunder.

<PAGE>
                           (6) The Trustee shall not be under any responsibility
                  or duty with respect to the  disposition by the Company of the
                  Bonds  or the  application  by  the  Company  of the  proceeds
                  thereof or of any moneys paid to the Company  under any of the
                  provisions hereof.

                  (c) The Trustee  may, at the  expense of the  Company,  advise
        with legal counsel to be selected and employed by it.

                  To the  extent  permitted  by  Paragraphs  (a) and (b) of this
         Section 14.02,  the Trustee shall not be liable for any action taken or
         suffered  by it in good  faith in  accordance  with the  advice of such
         counsel, and the Trustee shall not be under any responsibility,  except
         for the  exercise  of  reasonable  care,  in respect of the  selection,
         appointment  or approval of any  engineer,  appraiser or counsel or any
         other person or firm for any of the purposes expressed in this Restated
         Indenture.

                  (d) The Company shall pay to the Trustee, from time to time on
         demand,  reasonable  compensation  for  all  services  rendered  by the
         Trustee  hereunder  (which shall not be limited to the  compensation of
         trustees  of any  express  trust  as  provided  by law)  and  also  all
         reasonable expenses,  charges, counsel fees and other disbursements and
         those  of  its  agents,  attorneys  and  employees,   incurred  in  the
         administration  and  execution of the trusts  hereby  created,  and the
         Company agrees to indemnify and save the Trustee  harmless  against and
         from any  liability  or  damages  which it may incur or  sustain in the
         exercise and performance,  without  negligence or bad faith on the part
         of the Trustee, of any of its powers and duties hereunder.  The Trustee
         shall have a lien for such compensation,  expenses and indemnity on the
         Trust Estate and the proceeds thereof prior to the lien of the Bonds.

                  (e) The Trustee  shall not be  personally  liable for any debt
         contracted or for any expenditure  made by it in operating the business
         of the  Company or for any damage to  persons  or  property  or for any
         salary or  nonfulfillment  of any  contract in managing the property of
         the Company or any part thereof, upon entry as herein provided, and the
         Trust Estate is hereby  charged  with a paramount  lien in favor of the
         Trustee as security and indemnification against any such liability.

                  (f) To the extent  permitted by the  provisions  of Paragraphs
         (a) and (b) of this Section 14.02:

                           (1) The Trustee may rely upon and shall be  protected
                  in  acting  upon any  notice,  resolution,  request,  consent,
                  order,   certificate,   report,  opinion,   statement,   Bond,
                  obligation,  appraisal or other paper or document  believed by
                  it to be genuine and to have been signed or  presented  by the
                  proper  party or parties or by a person or persons  authorized
                  to act on his or their behalf.

<PAGE>

                           (2) The  Trustee may accept a  certificate  signed by
                  the  Secretary  (or an  Assistant  Secretary)  of the Company,
                  under its  corporate  seal,  as  conclusive  evidence that any
                  resolution  has been duly adopted by the Board of Directors of
                  the  Company  and/or  that the same is still in full force and
                  effect,  and such certificate shall constitute full protection
                  to the Trustee for any action  taken or omitted to be taken by
                  it in reliance thereon.

                           (3)  The  Trustee  shall  not be  under  any  duty to
                  examine into or pass upon the validity or  genuineness  of any
                  obligations  or  other  securities  at any  time  pledged  and
                  deposited  hereunder,  and the  Trustee  shall be  entitled to
                  assume that any obligations or other securities  presented for
                  pledge and  deposit  hereunder  are genuine and valid and what
                  they  purport to be, and that any  endorsement  or  assignment
                  thereon is genuine and legal.

                           (4) The Trustee shall not be under any  obligation to
                  see to the  delivery  or payment to it of any  obligations  or
                  evidences of indebtedness or other securities or cash required
                  to be  delivered  or paid to it,  hereunder,  except  in those
                  cases  where it is  specifically  herein  provided  that  such
                  delivery or payment is a condition  precedent  to the granting
                  of an  application  hereunder,  or to  see  that  any  of  the
                  property  hereby  intended  to  be  conveyed  or  assigned  is
                  properly and legally subjected to the lien hereof. The Trustee
                  need not take any action to secure the conveyance to it of any
                  property  acquired  by  the  Company  after  the  date  of the
                  execution   hereof,   except  in  those   cases  where  it  is
                  specifically   herein   provided   that  the   delivery  of  a
                  supplemental  indenture or other instrument of conveyance is a
                  condition   precedent  to  the  granting  of  an   application
                  hereunder.

                  (g) The Trustee may act as  depositary  for the Company or any
         committee formed to protect the rights of holders of Bonds or any other
         securities  of the  Company  or to effect or aid in any  reorganization
         growing out of the enforcement of the Bonds or this Restated Indenture,
         whether or not any such  committee  shall  represent  the  holders of a
         majority in amount of the Bonds at the time outstanding.

                  (h) The  Trustee  and any paying  agent or other  agent of the
         Company may each acquire and hold Bonds and,  subject to the provisions
         of Sections 14.03, 14.04 and 14.05, may otherwise deal with the Company
         in the same  manner  and to the same  extent  and with  like  effect as
         though it were not Trustee or as though it were not such agent.

                  (i) Whenever it is provided in this  Restated  Indenture  that
         the  Trustee  shall  take any action  either  upon the  happening  of a
         specified  event or upon the  fulfillment  of any condition or upon the
         request of the Company or the Bondholders,  the Trustee shall have full
         power to give any and all notices and to do any and all acts and things
         incidental to such action.

<PAGE>
         Section 14.03.  Removal, Resignation and Discharge of Trustee.

                  (a) If the Trustee has or acquires any conflicting interest as
         defined by Clause (d) of this Section, the Trustee shall within 90 days
         after  ascertaining  that it has such a  conflicting  interest,  either
         eliminate such conflicting  interest or resign by giving written notice
         to the Company,  but such resignation  shall not become effective until
         the appointment of a successor trustee and such successor's  acceptance
         of such appointment. The Company covenants to take prompt steps to have
         a successor  appointed  in the manner  hereinafter  provided in Section
         14.07.  Upon giving such notice of resignation,  the resigning  Trustee
         shall publish notice thereof, once a week for three successive calendar
         weeks in one  Authorized  Newspaper  in the City of Rapid  City,  South
         Dakota and one in the  Borough of  Manhattan,  the City of New York (in
         each instance upon any day of the week). If the resigning Trustee fails
         to publish  notice  within 10 days after giving  written  notice of its
         resignation to the Company, the Company shall publish such notice.

                  ( b ) In the event that the Trustee  shall fail to comply with
         the provisions of the preceding Clause (a) of this Section, the Trustee
         shall  within  10 days  after  the  expiration  of such  90-day  period
         transmit notice of such failure to the Bondholders in the manner and to
         the extent  provided  in Clause (c) of  Section  14.05 with  respect to
         reports pursuant to Clause (a) of Section 14.05.

                  (c) Any  Bondholder  who has been a bona fide holder of a Bond
         or Bonds for at least six  months  may,  on behalf of  himself  and all
         others similarly situated, petition any court of competent jurisdiction
         for the removal of the Trustee and the  appointment  of a successor  if
         the Trustee fails,  after written request  therefor by such holder,  to
         comply with the provisions of Clause (a) of this Section.

                  (d) The Trustee shall be deemed to have a conflicting interest
         if the  Bonds  are in  default  (exclusive  of any  period  of grace or
         requirement of notice) and--

                           (1) the Trustee is trustee  under  another  indenture
                  under which any other  securities or  certificates of interest
                  or  participation  in any other  securities of the Company are
                  outstanding, unless such other indenture is a collateral trust
                  indenture  under which the only  collateral  consists of Bonds
                  issued  under this  Restated  Indenture,  provided  that there
                  shall be excluded from the operation of this Paragraph another
                  indenture  or  indentures  under  which  other  securities  or
                  certificates of interest or  participation in other securities
                  of the  Company  are  outstanding  if the  Company  shall have
                  sustained  the  burden  of  proving  on   application  to  the
                  Securities and Exchange  Commission and after  opportunity for
                  hearing  thereon,  that the  trusteeship  under this  Restated
                  Indenture and such other indenture is not so likely to involve
                  a material conflict of interest as to make it necessary in the
                  public   interest  or  for  the  protection  of  investors  to
                  disqualify  the Trustee  from acting as such under one of such
                  indentures;

<PAGE>
                           (2) the Trustee or any of its  directors or executive
                  officers is an obligor  upon the Bonds or an  underwriter  for
                  the Company;

                           (3) the Trustee directly or indirectly controls or is
                  directly or indirectly controlled by or under direct or common
                  control with the Company or an underwriter for the Company;

                           (4) the Trustee or any of its  directors or executive
                  officers is a director, officer, partner, employee,  appointee
                  or representative of the Company,  or of an underwriter (other
                  than the Trustee  itself)  for the  Company  who is  currently
                  engaged in the business of  underwriting,  except that (A) one
                  individual may be a director and/or  executive  officer of the
                  Trustee  and  a  director  and/or  executive  officer  of  the
                  Company,  but may not be at the same time an executive officer
                  of both the Trustee and the Company; (B) if and so long as the
                  number  of  directors  of the  trustee  in office is more than
                  nine,  one additional  individual may be a director  and/or an
                  executive  officer  of  the  Trustee  and a  director  of  the
                  Company;  and (C) the Trustee may be designated by the Company
                  or by an underwriter for the Company to act in the capacity of
                  transfer agent,  registrar,  custodian,  paying agent,  fiscal
                  agent,  escrow  agent or  depositary  or in any other  similar
                  capacity or subject to the provisions of Paragraph (1) of this
                  Clause (d), to act as trustee  whether  under an  indenture or
                  otherwise;

                           (5) 10 per centum or more of the voting securities of
                  the Trustee is beneficially  owned either by the Company or by
                  any director,  partner or executive officer thereof, or 20 per
                  centum  or more  of such  voting  securities  is  beneficially
                  owned, collectively, by any two or more of such persons; or 10
                  per centum or more of the voting  securities of the Trustee is
                  beneficially owned either by an underwriter for the Company or
                  by any director,  partner or executive officer thereof,  or is
                  beneficially  owned,  collectively,  by any two or  more  such
                  persons;

                           (6) the Trustee is the  beneficial  owner of or holds
                  as collateral  security for an obligation which is in default,
                  (A) 5 per  centum or more of the voting  securities  or 10 per
                  centum or more of any other class of security of the  Company,
                  not including  the Bonds issued under this Restated  Indenture
                  and securities  issued under any other  indenture  under which
                  the Trustee is also  trustee,  or (B) 10 per centum or more of
                  any class of security of an underwriter for the Company;

                           (7) the Trustee is the  beneficial  owner of or holds
                  as collateral  security for an obligation which is in default,
                  5 per  centum or more of the voting  securities  of any person
                  who, to the  knowledge of the  Trustee,  owns 10 per centum or
                  more of the voting  securities  of, or  controls  directly  or
                  indirectly or is under direct or indirect common control with,
                  the Company;

<PAGE>

                           (8) the Trustee is the  beneficial  owner of or holds
                  as collateral  security for an obligation which is in default,
                  10 per centum or more of any class of  security  of any person
                  who, to the  knowledge of the  Trustee,  owns 50 per centum or
                  more of the voting securities of the Company; or

                           (9) the Trustee owns on May 15 in any  calendar  year
                  in the capacity of executor,  administrator,  testamentary  or
                  inter vivos trustee, guardian, committee or conservator, or in
                  any other  similar  capacity an  aggregate of 25 per centum or
                  more of the voting securities, or of any class of security, of
                  any person, the beneficial ownership of a specified percentage
                  of which would have  constituted a conflicting  interest under
                  Paragraph  (6), (7), or (8) of this Clause (d). As to any such
                  securities  of which the Trustee  acquired  ownership  through
                  becoming executor, administrator or testamentary trustee of an
                  estate,  which  included them, the provisions of the preceding
                  sentence  shall not  apply for a period of two years  from the
                  date of such  acquisition,  to the extent that such securities
                  included  in such  estate do not  exceed 25 per centum of such
                  voting  securities  or 25 per  centum  of any  such  class  of
                  security.  Promptly  after May 15, in each calendar  year, the
                  Trustee shall make a check of its holdings of such  securities
                  in any of the above-mentioned capacities as of such May 15. If
                  the  Company  fails to make  payment in full of  principal  or
                  interest  upon the Bonds  when and as the same  become due and
                  payable,  and such failure  continues for 30 days  thereafter,
                  the Trustee  shall make a prompt check of its holdings of such
                  securities in any of the above-mentioned  capacities as of the
                  date of the  expiration  of such 30-day  period and after such
                  date,   notwithstanding  the  foregoing   provisions  of  this
                  Paragraph  (9),  all such  securities  so held by the Trustee,
                  with sole or joint control over such securities  vested in it,
                  shall,  but only so long as such failure  shall  continue,  be
                  considered as though beneficially owned by the Trustee for the
                  purposes of Paragraphs (6), (7) and (8) of this Clause (d).

                           The specification of percentages in Paragraphs (5) to
                  (9),  inclusive,  of this Clause (d) shall not be construed as
                  indicating  that  the  ownership  of such  percentages  of the
                  securities of a person is or is not necessary or sufficient to
                  constitute  direct or  indirect  control  for the  purposes of
                  Paragraph (3) or (7) of this Clause (d).


<PAGE>
                           For the purposes of Paragraphs  (6), (7), (8) and (9)
                  of this Clause (d), (A) the term  "security" and  "securities"
                  shall include only such  securities as are generally  known as
                  corporate securities,  but shall not include any note or other
                  evidence of  indebtedness  issued to evidence an obligation to
                  repay  monies  lent to a person  by one or more  banks,  trust
                  companies or banking firms or any  certificate of interests or
                  participation  in any such note or evidence  of  indebtedness;
                  (B) an  obligation  shall be  deemed to be in  default  when a
                  default in payment of principal  shall have  continued  for 30
                  days or more  and  shall  not  have  been  cured;  and (C) the
                  Trustee  shall  not be deemed to be the owner or holder of (i)
                  any security which it holds as collateral security (as trustee
                  or  otherwise)  for an  obligation  which is not in default as
                  above  defined,  or  (ii)  any  security  which  it  holds  as
                  collateral    security   under   this   Restated    Indenture,
                  irrespective of any default  hereunder;  or (iii) any security
                  which  it  holds as agent  for  collection,  or as  custodian,
                  escrow agent or depositary,  or in any similar  representative
                  capacity.

         The percentages of voting securities and other securities  specified in
this Section shall be calculated in accordance with the following provisions:

                  (a) A specified  percentage  of the voting  securities  of the
         Trustee,  the Company or any other  person  referred to in this Section
         (each of whom is  referred to as a "person"  in this  Paragraph)  means
         such  amount of the  outstanding  voting  securities  of such person as
         entitled  the  holder  or  holders   thereof  to  cast  such  specified
         percentage  of the  aggregate  votes  which  the  holders  of  all  the
         outstanding  voting  securities  of such person are entitled to cast in
         the direction or management of the affairs of such person.

                  (b) A  specified  percentage  of a class  of  securities  of a
         person means such  percentage of the aggregate  amount of securities of
         the class outstanding.

                  (c) The term  "amount,"  when used in  regard  to  securities,
         means the  principal  amount if relating to evidences of  indebtedness,
         the number of shares if relating to capital  shares,  and the number of
         units if relating to any other kind of security.

                  (d) The term "outstanding" means issued and not held by or for
         the account of the issuer. The following securities shall not be deemed
         outstanding within the meaning of this definition:

                           (1)  Securities  of an issuer held in a sinking fund
                  relating to  securities  of the issuer of the same class;

                           (2)  Securities  of an issuer held in a sinking  fund
                  relating to another class of securities of the issuer,  if the
                  obligation  evidenced by such other class of securities is not
                  in default as to principal or interest or otherwise;

                           (3)  Securities  pledged  by the  issuer  thereof  as
                  security for an  obligation of the issuer not in default as to
                  principal or interest or otherwise;

                           (4)  Securities held in escrow if placed in escrow
                  by the issuer thereof;

         provided,  however,  that any voting  securities  of an issuer shall be
         deemed  outstanding  if any person other than the issuer is entitled to
         exercise the voting rights thereof.

<PAGE>

                  (e) A  security  shall be  deemed  to be of the same  class as
         another  security if both securities  confer upon the holder or holders
         thereof  substantially  the  same  rights  and  privileges;   provided,
         however, that, in the case of secured evidences of indebtedness, all of
         which are issued under a single indenture,  differences in the interest
         rates or maturity  dates of various  series thereof shall not be deemed
         sufficient to constitute such series different  classes;  and provided,
         further,  that,  in the case of unsecured  evidences  of  indebtedness,
         differences  in the interest  rates or maturity dates thereof shall not
         be  deemed  sufficient  to  constitute  them  securities  of  different
         classes, whether or not they are issued under a single indenture.

                  The term "voting  securities"  means and includes any security
         presently  entitling  the  owner  or  holder  thereof  to  vote  in the
         direction  or  management  of the affairs of a person,  or any security
         issued  under or  pursuant  to any  trust,  agreement,  or  arrangement
         whereby  a trustee  or  trustees  or agent or  agents  for the owner or
         holder of such security are presently entitled to vote in the direction
         or management of the affairs of a person.

                  The term  "director"  means any director of a corporation,  or
         any  individual  performing  similar  functions  with  respect  to  any
         organization whether incorporated or unincorporated.

                  The  term  "executive  officer"  means  the  president,  every
         vice-president,  every trust officer, the cashier,  the secretary,  and
         the  treasurer  of  a  corporation,   and  any  individual  customarily
         performing  similar functions with respect to any organization  whether
         incorporated or  unincorporated,  but shall not include the chairman of
         the board of directors.

                  The term "underwriter" when used with reference to the Company
         means every  person,  who,  within  three years prior to the time as of
         which the  determination is made, has purchased from the Company with a
         view  to,  or  has  sold  for  the  Company  in  connection  with,  the
         distribution of any security of the Company which is outstanding at the
         time the determination is made, or has participated or has had a direct
         or  indirect  participation  in any  such  direct  undertaking,  or has
         participated  or has had a  participation  in the  direct  or  indirect
         underwriting of any such undertaking, but such term shall not include a
         person whose  interest was limited to a commission  from an underwriter
         or dealer  not in excess of the usual and  customary  distributors'  or
         sellers' commission.

                  The  provisions  of this  Section  14.03  which have been made
         specifically  applicable  to  the  Trustee,  shall  also  apply  to any
         co-Trustee appointed pursuant to Section 14.09.

                  In the event that any person  other than the Company  shall at
         any time  become  an  obligor  upon any of the  Bonds,  so long as such
         person shall continue to be such obligor the provisions of this Section
         14.03,  in  addition  to  being  applicable  to  the  Trustee,  to  any
         co-Trustee and to the Company, shall be applicable to the Trustee, such
         co-Trustee,  and such  obligor  with the same  effect as if the name of
         such  obligor  were  substituted  for  that  of  the  Company  in  said
         provisions.



<PAGE>


         Section 14.04.  Special Account in Case of Default.

                  (a) Subject to the  provisions  of Clause (b) of this Section,
         if the Trustee shall be or become a creditor,  directly or  indirectly,
         secured or  unsecured,  of the Company  within  three months prior to a
         default,  as defined in Clause (e) of this  Section,  or  subsequent to
         such a default, then, unless and until such default shall be cured, the
         Trustee  shall set apart and hold in a special  account for the benefit
         of the Trustee individually,  the holders of the Bonds, and the holders
         of other  indenture  securities  ( as  defined  in  Clause  (e) of this
         Section):

                           (1) an amount equal to any and all  reductions in the
                  amount  due and  owing  upon  any  claim as such  creditor  in
                  respect of principal or interest, effected after the beginning
                  of such  three-month  period and valid as against  the Company
                  and its other creditors,  except any such reduction  resulting
                  from the receipt or disposition  of any property  described in
                  Paragraph  (2) of this Clause (a), or from the exercise of any
                  right of setoff  which the Trustee  could have  exercised if a
                  petition  in  bankruptcy  had  been  filed by or  against  the
                  Company upon the date of such default; and

                           (2) all  property  received by the Trustee in respect
                  of any claim as such creditor, either as security therefor, or
                  in satisfaction or composition  thereof,  or otherwise,  after
                  the beginning of such three-month  period,  or an amount equal
                  to the proceeds of any such property, if disposed of, subject,
                  however,  to the rights,  if any, of the Company and its other
                  creditors in such property or such proceeds.

                  (b) Nothing  contained in this Section  14.04 shall affect the
         right of the Trustee:

                           (1) to retain for its own account (i)  payments  made
                  on account of any such  claim by any  person  (other  than the
                  Company) who is liable  thereon,  and (ii) the proceeds of the
                  bona fide  sale of any such  claim by the  Trustee  to a third
                  person, and (iii)  distributions  made in cash,  securities or
                  other  property in respect of claims filed against the Company
                  in  bankruptcy  or   receivership   or  in   proceedings   for
                  reorganization  pursuant  to  the  Federal  Bankruptcy  Act or
                  applicable State law;

                           (2)  to  realize,  for  its  own  account,  upon  any
                  property  held by it as security  for any such claim,  if such
                  property   was  so  held  prior  to  the   beginning  of  such
                  three-month period;

<PAGE>
                           (3) to realize,  for its own account, but only to the
                  extent of the claim hereinafter  mentioned,  upon any property
                  held by it as security  for any such claim,  if such claim was
                  created  after the  beginning of such  three-month  period and
                  such property was received as security therefor simultaneously
                  with the creation  thereof;  and if the Trustee  shall sustain
                  the burden of proving  that at the time such  property  was so
                  received the Trustee had no reasonable cause to believe that a
                  default, as defined in Clause (e) of this Section 14.04, would
                  occur within three months; or

                           (4) to receive  payment on any claim  referred  to in
                  Paragraph (2) or (3) of this Clause (b) against the release of
                  any  property  held as security  for such claim as provided in
                  said  Paragraph  (2) or (3), as the case may be, to the extent
                  of the Fair Value of such property.

                  For the purposes of Paragraphs (2), (3) and (4) of this Clause
         (b),  property  substituted  after the  beginning  of such  three-month
         period for property  held as security at the time of such  substitution
         shall, to the extent of the Fair Value of the property  released,  have
         the same status as the property  released,  and, to the extent that any
         claim referred to in any of such Paragraphs is created in renewal of or
         in  substitution  for or for the purpose of repaying or  refunding  any
         preexisting  claim of the  Trustee as such  creditor,  such claim shall
         have the same status as such preexisting claim.

                  (c) If the Trustee  shall be  required to account,  as in this
         Section  14.04  provided,  the funds and property  held in such special
         account  and the  proceeds  thereof  shall be  apportioned  between the
         Trustee,  the  Bondholders,  and the  holders  of any  other  indenture
         securities in such manner that the Trustee,  the  Bondholders,  and the
         holders of other indenture  securities realize, as a result of payments
         from such  special  account,  and payments of dividends on claims filed
         against the Company in bankruptcy or receivership or in proceedings for
         reorganization  pursuant to the Federal  Bankruptcy  Act or  applicable
         State law, the same  percentage  of their  respective  claims,  figured
         before crediting to the claim of the Trustee anything on account of the
         receipt  by it from the  Company  of the  funds  and  property  in such
         special  account and before  crediting to the respective  claims of the
         Trustee, the Bondholders, and the holders of other indenture securities
         dividends  on  claims  filed  against  the  Company  in  bankruptcy  or
         receivership  or in  proceedings  for  reorganization  pursuant  to the
         Federal  Bankruptcy  Act or applicable  State law, but after  crediting
         thereon  receipts on account of the  indebtedness  represented by their
         respective  claims from all sources other than such  dividends and from
         the funds and property so held in such special account. As used in this
         Clause  (c),  with  respect to any claim,  the term  "dividends"  shall
         include any  distribution  with respect to such claim in  bankruptcy or
         receivership  or in  proceedings  for  reorganization  pursuant  to the
         Federal   Bankruptcy  Act  or  applicable   State  law,   whether  such
         distribution is made in cash, securities,  or other property, but shall
         not include any such  distribution with respect to the secured portion,
         if any, of such claim.

<PAGE>
                  The  court  in  which   such   bankruptcy,   receivership   or
         proceedings for  reorganization  is pending shall have jurisdiction (1)
         to apportion between the Trustee,  the Bondholders,  and the holders of
         other indenture  securities,  in accordance with the provisions of this
         Clause (c), the funds and property held in such special account and the
         proceeds thereof, or (2) in lieu of such apportionment,  in whole or in
         part, to give to the provisions of this Clause (c) due consideration in
         determining  the  fairness  of  the  distributions  to be  made  to the
         Trustee,   the   Bondholders,   and  the  holders  of  other  indenture
         securities,  with respect to their respective claims, in which event it
         shall not be  necessary  to  liquidate  or to appraise the value of any
         securities  or  other  property  held in  such  special  account  or as
         security  for any such claim or to make a specific  allocation  of such
         distributions  as between the secured  and  unsecured  portions of such
         claims or  otherwise  to apply the  provisions  of this Clause (c) as a
         mathematical formula.

                  (d) Any Trustee who has  resigned  or been  removed  after the
         beginning of such three-month period shall be subject to the provisions
         of this  Section  14.04 as though such  resignation  or removal had not
         occurred.  If any Trustee has  resigned  or been  removed  prior to the
         beginning  of such  three-month  period,  it  shall be  subject  to the
         provisions of this Section 14.04 if and only if--

                           (i) the  receipt of property  or  reduction  of claim
                  which would have given rise to the  obligation to account,  if
                  such  Trustee had  continued  as Trustee,  occurred  after the
                  beginning of such three months' period; and

                            (ii) such  receipt of property or reduction of claim
                  occurred  within  three  months  after  such   resignation  or
                  removal.

                  (e) As used in this Section 14.04,  the term  "default"  means
         any  failure to make  payment in full of the  principal  of or interest
         upon the Bonds or upon the other indenture  securities when and as such
         principal  or  interest  becomes due and  payable;  and the term "other
         indenture  securities"  means  securities  upon which the Company is an
         obligor (as  defined in the Trust  Indenture  Act of 1939)  outstanding
         under any other  indenture (1) under which the Trustee is also trustee,
         (2) which is qualified  under the Trust  Indenture  Act of 1939 and (3)
         under which a default  exists at the time of the  apportionment  of the
         funds and property held in said special account.

                  (f) None of the  foregoing  provisions  of this Section  14.04
         shall be  applicable  in  respect of a  creditor  relationship  arising
         from--

                           (1) the ownership or acquisition of securities issued
                  under any  indenture,  or any security or securities  having a
                  maturity of one year or more at the time of acquisition by the
                  Trustee;

                           (2)  advances   authorized  by  a   receivership   or
                  bankruptcy  court  of  competent  jurisdiction,   or  by  this
                  Restated Indenture, for the purpose of preserving the property
                  subject  to  the  lien  of  this  Restated   Indenture  or  of
                  discharging  tax liens or other prior liens or encumbrances on
                  the  Trust  Estate,  if  notice  of  such  advance  and of the
                  circumstances  surrounding  the making thereof is given to the
                  Bondholders as provided in Clauses (a), (b) and (c) of Section
                  14.05 with respect to advances by the Trustee as such;

<PAGE>
                           (3)  disbursements  made in the  ordinary  course  of
                  business  in the  capacity  of  trustee  under  an  indenture,
                  transfer agent,  registrar,  custodian,  paying agent,  fiscal
                  agent or depositary, or other similar capacity;

                           (4) an  indebtedness  created as a result of services
                  rendered or premises rented;  or an indebtedness  created as a
                  result of goods or securities sold in a cash  transaction,  as
                  defined in this Clause (f);

                           (5) the  ownership of stock or other  securities of a
                  corporation  organized  under the provisions of Section 25 (a)
                  of the Federal  Reserve Act, as amended,  which is directly or
                  indirectly a creditor of the Company; or

                           (6)  the  acquisition,   ownership,   acceptance,  or
                  negotiation of any drafts,  bills of exchange,  acceptances or
                  obligations   which   fall   within  the   classification   of
                  self-liquidating paper as defined in this Clause (f).

                  The term "security" or "securities" as used in this Clause (f)
         shall have the same meaning as the definition of the word "security" in
         the Securities Act of 1933, as amended.

                  The term "cash  transaction"  as used in this Clause (f) means
         any  transaction in which full payment for goods or securities  sold is
         made within  seven days after  delivery of the goods or  securities  in
         currency or in checks or other  orders  drawn upon banks or bankers and
         payable upon demand.

                  The term "self-liquidating  papers" as used in this Clause (f)
         means any draft,  bill of exchange,  acceptance or obligation  which is
         made,  drawn,  negotiated or incurred by the Company for the purpose of
         financing the purchase, processing,  manufacture,  shipment, storage or
         sale of goods,  wares or merchandise  and which is secured by documents
         evidencing title to, possession of, or a lien upon, the goods, wares or
         merchandise  or the  receivables  or proceeds  arising from the sale of
         goods,  wares or  merchandise  previously  constituting  the  security,
         provided  the security is received by the Trustee  simultaneously  with
         the creation of the creditor relationship with the obligor arising from
         the making,  drawing,  negotiating  or incurring of the draft,  bill of
         exchange, acceptance or obligation.

                  The term "Trustee" as used in this Section 14.04 shall include
any co-Trustee appointed pursuant to Section 14.09.

                  In the event that any person  other than the Company  shall at
         any time  become  an  obligor  upon any of the  Bonds,  so long as such
         person shall continue to be such obligor the provisions of this Section
         14.04, in addition to being  applicable to the Trustee,  any co-Trustee
         and the Company,  shall be applicable to the Trustee,  and  co-Trustee,
         and such  obligor  with the same effect as if the name of such  obligor
         were substituted for that of the Company in said provisions.

<PAGE>

         Section 14.05.  Trustee's Annual Report to Bondholders.

                  (a)  The  Trustee  shall   transmit  to  the   Bondholders  as
         hereinafter  provided,  on or  before  August 1 of each  year,  a brief
         report as of May 15 with respect to any of the  following  events which
         may have  occurred  within the previous 12 months (but if no such event
         has occurred within such period, no report need be transferred)

                           (1)  any change to its  eligibility and its
                  qualifications  under Sections 14.01 and Sections 14.03 and
                  14.07;

                           (2)  the  creation  of or any  material  change  to a
                  relationship  specified in Section  310(b)(1)  through Section
                  310(b)(10) of the Trust Indenture Act;

                           (3) the  character and amount of any advances (and if
                  the Trustee elects so to state, the circumstances  surrounding
                  the making  thereof) made by it as Trustee which remain unpaid
                  on the date of such report, and for the reimbursement of which
                  it claims or may claim a lien or charge,  prior to that of the
                  Bonds,  on the Trust  Estate or on  property  or funds held or
                  collected  by it as Trustee,  if such  advances  so  remaining
                  unpaid  aggregate more than 1/2 of 1% of the principal  amount
                  of the Bonds outstanding on such date;

                           (4) any  change  of the  amount,  interest  rate  and
                  maturity  date of all other  indebtedness  owing to it, in its
                  individual  capacity,  on the  date  of  such  report,  by the
                  Company and by any other person who may be an obligor upon any
                  of the Bonds, with a brief description of any property held as
                  collateral  security  therefor,  except an indebtedness  based
                  upon a creditor  relationship  arising in any manner described
                  in  Paragraph  (2),  (3),  (4) or (6) of Clause (f) of Section
                  14.04;

                           (5) any change of the property  and funds  physically
                  in the  possession of the Trustee in such capacity on the date
                  of such report;

                           (6) any  release,  or release  and  substitution,  of
                  property  subject to the lien of this Restated  Indenture (and
                  the  consideration   therefor,   if  any)  which  it  has  not
                  previously  reported,  provided,  however,  that to the extent
                  that the aggregate value as shown by the release papers of any
                  or all of such released  properties  does not exceed an amount
                  equal to one per cent  (1%) of the  principal  amount of Bonds
                  then outstanding,  the report need only indicate the number of
                  such releases,  the total value of property  released as shown
                  by the release papers,  the aggregate  amount of cash received
                  and the aggregate  value of property  received in substitution
                  therefor as shown by the release papers;

                           (7)  any additional issue of Bonds which it has not
                  previously reported; and

<PAGE>
                           (8)  any   action   taken  by  the   Trustee  in  the
                  performance of its duties under this Restated  Indenture which
                  it has  not  previously  reported  and  which  in its  opinion
                  materially  affects  the  Bonds or the  Trust  Estate,  except
                  action in respect of a default, notice of which has been or is
                  to  be  withheld  by  the  Trustee  in  accordance   with  the
                  provisions of Section 11.01.

                  (b)  The  Trustee  shall  transmit  to  the  Bondholders,   as
         hereinafter provided, a brief report with respect to--

                           (1) the  release,  or release  and  substitution,  of
                  property  subject to the Lien of this Restated  Indenture (and
                  the consideration  therefor,  if any) unless the Fair Value of
                  such  property,  as set forth in the  Certificate  required by
                  Section 7.02 or Section  7.08,  is less than (i) 10 per centum
                  of the principal  amount of Bonds  outstanding  at the time of
                  such  release,  or such  release  and  substitution  and  (ii)
                  $100,000,  such report to be transmitted  within 90 days after
                  such time; and

                           (2) the  character and amount of any advances (and if
                  the Trustee elects so to state, the circumstances  surrounding
                  the making  thereof) made by it as Trustee,  since the date of
                  the last  report  transmitted  pursuant to the  provisions  of
                  Clause  (a) of this  Section  14.05 (or if no such  report has
                  been transmitted, since the date of execution of this Restated
                  Indenture),  for the  reimbursement  of which it claims or may
                  claim a lien or  charge,  prior to that of the  Bonds,  on the
                  Trust  Estate or on property or funds held or  collected by it
                  as Trustee and which it has not previously  reported  pursuant
                  to this  Paragraph (2), if such advances  remaining  unpaid at
                  any time  aggregate  more than 10 per centum of the  principal
                  amount of the Bonds  outstanding at such time,  such report to
                  be transmitted within 90 days after such time.

                  (c)      Reports pursuant to this Section 14.05 shall be
         transmitted by mail--

                           (1) to all  registered  holders of the Bonds,  as the
                  names  and   addresses  of  such   holders   appear  upon  the
                  registration books of the Company;

                           (2) to such holders of Bonds as have,  within the two
                  years  preceding  such  transmission,  filed  their  names and
                  addresses with the Trustee for that purpose; and

                           (3) except in the case of reports  pursuant to Clause
                  (b) of this Section 14.05, to each  Bondholder  whose name and
                  address is preserved  at the time by the Trustee,  as provided
                  in Clause (a) of Section 9.17.

                  (d) The Trustee shall, at the time of the  transmission to the
         Bondholders of any report  pursuant to this Section 14.05,  file a copy
         of such report with each stock exchange upon which the Bonds are listed
         and with the Securities and Exchange Commission.

<PAGE>

         Section 14.06.  Removal and Resignation of Trustee.  The Trustee may at
any time  resign  and be  discharged  from the trusts  created by this  Restated
Indenture  by giving  written  notice  thereof  to the  Company  and  thereafter
publishing  notice thereof,  specifying a date when such resignation  shall take
effect,  once a week for  three  successive  calendar  weeks  in one  Authorized
Newspaper in the City of Rapid City,  South Dakota and one Authorized  Newspaper
in the Borough of Manhattan, The City of New York (in each instance upon any day
of the week, and in any such newspaper),  and such resignation shall take effect
upon the day  specified in such notice  unless  previously  a successor  Trustee
shall have been  appointed  in the manner  provided in Section  14.07,  in which
event such  resignation  shall take effect  immediately  upon the appointment of
such  successor  Trustee and its  acceptance of such  appointment.  This Section
shall not be applicable to resignations pursuant to Section 14.03.

         The  Trustee  may be removed  at any time with or without  cause by the
holders of a majority in amount of the Bonds then outstanding,  by an instrument
or concurrent  instruments in writing,  signed in triplicate by such holders, of
which one copy shall be filed with the Company and one with the Trustee.

         Section 14.07.  Disqualification  and Appointment of Successor Trustee.
In case at any time the Trustee  shall cease to be a  corporation  organized and
doing  business  under the laws of the United  States of America or of any State
which (a) is authorized  under such laws to exercise  corporate trust powers and
(b) is subject to supervision or examination by Federal or State  authority,  or
shall cease to have a combined  capital and surplus of at least  $1,000,000 then
the Trustee  shall resign  immediately;  and, in the event that the Trustee does
not resign  immediately  in such case,  then it may be removed  forthwith  by an
instrument  or  concurrent  instruments  in writing  filed with the  Trustee and
either (i) signed and sealed by the President or a Vice-President of the Company
with its corporate seal attested by a Secretary or an Assistant Secretary of the
Company,  or (ii)  signed and  acknowledged  by the  holders  of a  majority  in
principal  amount  of  the  Bonds  then   outstanding   hereunder  or  by  their
attorneys-in-fact duly authorized.

         In case at any time the Trustee shall resign or be removed  (unless the
Trustee  shall be removed as  provided  in Clause (c) of Section  14.03 in which
event the vacancy  shall be filed as  provided in said Clause (c)) or  otherwise
become  incapable of acting,  a successor to the Trustee may be appointed by the
holders of at least a majority  in amount of the Bonds  then  outstanding  by an
instrument or concurrent  instruments in writing signed by such  Bondholders and
delivered to such  successor  Trustee,  notification  thereof being given to the
Company and the retiring Trustee; but until a success Trustee shall be appointed
by the  Bondholders  as herein  authorized,  the Company,  by an  instrument  in
writing  executed by order of its Board of Directors,  shall appoint a successor
Trustee  to fill such  vacancy  and the  Company  shall  publish  notice of such
appointment  once in each of two  successive  calendar  weeks in one  Authorized
Newspaper  in the City of Rapid  City,  South  Dakota and one in the  Borough of
Manhattan,  The City of New York, in each instance upon any day of the week. Any
successor  Trustee so appointed  by the Company  shall  immediately  and without
further act be superseded by a successor  Trustee  appointed in the manner above
provided  by the  holders  of at least a  majority  in amount of the Bonds  then
outstanding.

<PAGE>

         If in a proper case no appointment of a successor Trustee shall be made
pursuant to the foregoing  provisions of this Section  within six months after a
vacancy  shall have  occurred  in the  office of Trustee  the holder of any Bond
outstanding  hereunder  or any  retiring  Trustee  may  apply  to any  court  of
competent  jurisdiction to appoint a successor Trustee. Said court may thereupon
after such notice, if any, as said court may deem proper and prescribe,  appoint
a successor Trustee.

         Every Trustee appointed under the provisions of this Section shall be a
trust company or bank  organized and doing  business under the laws of the State
of New York or under  the laws of the  United  States  of  America,  having  its
principal  office for the  transaction  of business in the Borough of Manhattan,
The City of New York, and (a) which shall be a corporation  having a capital and
surplus  aggregating  at least  $1,000,000 on the date of its  appointment,  (b)
which shall be authorized  under such laws to exercise  corporate  trust powers,
and (c) which shall be subject to supervision or examination by Federal or State
authority.

         Any successor Trustee  appointed  hereunder shall execute an instrument
accepting such appointment  hereunder and shall deliver one counterpart  thereof
to the Company and one  counterpart  thereof to the retiring  Trustee.  Upon the
execution and delivery of such instrument of acceptance,  such successor Trustee
shall,  without any further act, deed or conveyance,  become vested with all the
estate,  properties,  rights,  powers and trusts of its predecessor in the trust
hereunder  with like effect as if originally  named as Trustee  herein;  but the
Trustee retiring shall, nevertheless, if and when requested in writing by either
the successor Trustee or by the Company,  and upon payment of its lawful charges
and  disbursements  then unpaid,  if any,  execute and deliver an  instrument or
instruments conveying and transferring to the successor trustee, upon the trusts
herein expressed,  all the estate,  properties,  rights, power and trusts of the
Trustee  so  retiring,  and shall  duly  assign,  transfer  and  deliver  to the
successor  Trustee so  appointed  in its place all property and money held by it
hereunder. Should any deed, conveyance or instrument in writing from the Company
be required by any successor Trustee for more fully and certainly vesting in and
confirming to it the said estates,  properties,  rights, powers and trusts, then
any and all such deeds, conveyances and instruments in writing shall, on request
of such successor Trustee, be made, executed,  acknowledged and delivered by the
Company.

         Section  14.08.  Merger of  Trustee.  Any  corporation  into  which the
Trustee  hereunder  may be merged or with  which it may be  consolidated  or any
corporation  resulting  from any merger or  consolidation  to which the  Trustee
shall be a party,  or any corporation  which shall  otherwise  become the lawful
successor  to  the  assets  and  business  of  the  Trustee  as an  entirety  or
substantially  as an entirety,  shall be the successor of the Trustee  hereunder
without the execution or filing of any instrument or any further act on the part
of any  of  the  parties  hereto,  anything  herein  contained  to the  contrary
notwithstanding,  provided such corporation shall be a corporation organized and
doing business under the laws of the State of New York, or under the laws of the
United States of America,  having its principal  office for the  transaction  of
business  in the  Borough  of  Manhattan,  The City of New  York,  and  shall be
authorized  under  such laws to  exercise  corporate  trust  powers and shall be
subject to supervision  or  examination by Federal or State  authority and shall
have a combined capital and surplus of at least $1,000,000.

<PAGE>

         Section  14.09.  Appointment of  Co-Trustee.  At any time or times,  in
order to conform to any legal  requirements,  the Trustee and the Company  shall
have power to appoint,  and upon request of the Trustee,  the Company shall join
with the  Trustee in the  execution  and  delivery  of all  instruments  and the
performance of all acts necessary or proper to appoint, another trust company or
bank  or  one  or  more  persons,  approved  by the  Trustee,  either  to act as
co-trustee or  co-trustees  of all or any part of the trust estate  jointly with
the  Trustee,  or to act as  substitute  trustee or  trustees of any part of the
same, and in any case with all such of the powers, rights,  duties,  obligations
and immunities hereby conferred or imposed on the Trustee, and for such term, if
any  limitation  is placed  thereon,  as may be specified in the  instrument  of
appointment,  the same to be exercised  jointly with the Trustee,  except to the
extent that under any law of any  jurisdiction  in which any  particular  act or
acts are to be performed  the Trustee shall be  incompetent  or  unqualified  to
perform  such act or acts,  in which  event  such  rights,  powers,  duties  and
obligations  shall be exercised and performed by such  co-trustee or co-trustees
or  substitute  trustee or  trustees;  and,  if an event of  default  shall have
happened and shall not have been  remedied or if the Company  shall fail to join
with the Trustee in any such appointment  within five days after being requested
by the Trustee so to do, the Trustee shall have power, without any action on the
part of the  Company  and without the  necessity  of the  execution  of any such
instrument  of  appointment  by the  Company,  to  appoint  such  co-trustee  or
co-trustees or substitute  trustee or trustees as aforesaid,  and to execute all
instruments  and perform all acts  necessary or  convenient  and proper for such
purpose.  The  Trustee may  receive  the  opinion of any  counsel  selected  and
approved  by it as  to  the  necessity  or  propriety  of  appointing  any  such
co-trustee  or  substitute  trustee  and as to the form and  effect  of any such
instrument to be executed or any act to be taken to effect such  appointment and
as to  any  other  matter  arising  under  this  Section,  and,  subject  to the
provisions of Section  14.02,  such opinion shall be full  protection to Trustee
for any action taken or omitted to be taken by it pursuant thereto.

         Section 14.10.  Notice. Any notice to or demand upon the Trustee may be
served or presented,  and such demand shall be made, at the principal  office of
the  Trustee.  Any notice to or demand upon the Company  shall be deemed to have
been  sufficiently  given or  served  by the  Trustee  on the  Company,  for all
purposes, by being sent by overnight delivery service addressed as follows:

                             BLACK HILLS CORPORATION
                                625 Ninth Street
                              Rapid City, SD 57701

or addressed to the Company at such other  address as may be filed in writing by
the Company with the Trustee.




<PAGE>


                                 ARTICLE FIFTEEN

                                   DEFEASANCE

         Section 15.01. Conditions to Discharge Restated Indenture.  The Trustee
shall forthwith cause  satisfaction and discharge of this Restated  Indenture to
be entered upon the record at the cost and charge of the  Company,  upon receipt
by and deposit with the Trustee of the following:

                  A. A RESOLUTION OF THE BOARD, requesting the satisfaction and
         discharge of the Restated Indenture.

                  B. CASH, in trust, at or before maturity, sufficient under the
         provisions of Section 1.05, among other provisions hereof, to discharge
         the entire indebtedness on all Bonds outstanding hereunder or to redeem
         all such  Bonds  outstanding  hereunder  or to redeem  all such  Bonds,
         provided,  however,  that in lieu of all or any part of such cash,  the
         Company  shall  have  the  right to  deliver  to and  deposit  with the
         Trustee:

                           (1) BONDS outstanding hereunder,  for cancellation by
                  the Trustee, such Bonds to be deemed to be paid and retired.

                  C.  A  WRITTEN   ORDER  OF  THE   COMPANY,   expressed  to  be
         irrevocable,  authorizing  the Trustee to give notice of  redemption of
         the Bonds,  if any, to be redeemed as  aforesaid,  in  compliance  with
         Section 10.03,  or proof  satisfactory  to the Trustee that said notice
         has been given.

                  D. CASH, sufficient to pay all other sums payable hereunder by
         the Company (except in respect of the refund or reimbursement of taxes,
         assessments  or other  governmental  charges,  for which the holders of
         Bonds shall look only to the Company).

                  E. A CERTIFICATE OF THE COMPANY, complying with the provisions
         of Section 1.02,  stating that the cash and/or Bonds, if any, deposited
         with the Trustee  pursuant to Paragraph B of this Section 15.01 and the
         cash,  if any,  deposited  with the Trustee  pursuant to Paragraph D of
         this Section 15.01 are  sufficient to comply with the  requirements  of
         the  respective  Paragraphs  and that all  conditions  precedent  which
         relate to the  satisfaction  and discharge of this  Restated  Indenture
         have been complied with.

                  F. AN OPINION OF COUNSEL,  complying  with the  provisions  of
         Section 1.02, stating that all conditions precedent which relate to the
         satisfaction  and  discharge  of  this  Restated  Indenture  have  been
         complied with, and that the resolutions,  cash, Bonds, certificates and
         other  instruments  which have been or are  therewith  delivered to the
         Trustee  conform to the  requirements  of this  Restated  Indenture and
         constitute  sufficient  authority under this Restated Indenture for the
         Trustee to satisfy and discharge the Restated Indenture, and that, upon
         the basis thereof,  the Trustee may lawfully  satisfy and discharge the
         Indenture.

<PAGE>

         The Company may at any time  surrender to the Trustee for  cancellation
by it any Bonds  previously  authenticated  and  delivered  hereunder  which the
Company may have acquired in any manner  whatsoever,  and such Bonds,  upon such
surrender and cancellation, shall be deemed to be paid and retired.

         Section 15.02. Discharge of Restated Indenture.  Upon compliance by the
Company with the  provisions of Section 15.01 these presents and the estates and
rights hereby granted shall cease,  determine and be void, and the Trustee shall
forthwith  cause  satisfaction  and discharge of this  Restated  Indenture to be
entered upon the record at the cost and expense of the Company and shall execute
and deliver such  instruments  of  satisfaction  as may be  necessary  and shall
deliver and pay to or upon the Written Order of the Company all securities, cash
(except cash  deposited  under Section 15.01 and other cash held for the payment
or  redemption  of Bonds)  and other  personal  property  held by it under  this
Restated Indenture.


                                 ARTICLE SIXTEEN

                             SUPPLEMENTAL INDENTURES

         Section 16.01.  Modification of Restated Indenture Through Supplemental
Indentures.  Without any consent or other  action of  Bondholders,  the Company,
when authorized by a Resolution of the Board, and the Trustee, from time to time
and at any  time,  subject  to  the  restrictions  in  this  Restated  Indenture
contained,  may, and when so required by this Restated  Indenture,  shall, enter
into  such  indentures  supplemental  hereto  as may or shall by them be  deemed
necessary or desirable, for one or more of the following purposes:

                  A. To correct the  description of any property  hereby
         conveyed or pledged or intended so to be, or to assign, convey,
         mortgage, pledge, transfer and set over unto the Trustee, additional
         property of the Company;

                  B. To add to the conditions,  limitations and  restrictions on
         the  authentication  and  delivery  of, and on the  authorized  amount,
         terms,  provisions  and  purposes  of issue of,  Bonds or any series of
         Bonds,  as  herein  set  forth,   other  conditions,   limitations  and
         restrictions thereafter to be observed;

                  C. To add to the  covenants  and  agreements of the Company in
         this  Restated  Indenture  contained  other  covenants  and  agreements
         thereafter to be observed by the Company, and/or to surrender any right
         or power herein reserved to or conferred upon the Company;

                  D. To provide for the  creation of any series of Bonds  (other
         than  Existing  Bonds),  designating  the  series  to  be  created  and
         specifying  the form and  provisions  of the  Bonds of such  series  as
         hereinbefore provided or permitted;


<PAGE>


                  E. To provide a sinking,  amortization,  improvement  or other
         analogous fund for the benefit of all or any of the Bonds or any one or
         more  series,  of such  character  and of such  amount  (subject to the
         provisions of Section 2.04) and upon such terms and conditions as shall
         be contained in such supplemental indenture;

                  F. To provide  the terms and  conditions  of the  exchange  of
         Bonds of one series for Bonds of  another  or other  series,  or of the
         exchange  of Bonds of one  denomination  or kind for  Bonds of  another
         denomination or kind, of the same series;

                  G. To provide  that the  principal  of the Bonds of any series
         may be converted at the option of the holders into capital stock, bonds
         and/or  other  securities,   and  the  terms  and  conditions  of  such
         conversion;

                  H. To change,  alter,  modify,  vary or  eliminate  any of the
         terms,   provisions,   restrictions  or  conditions  of  this  Restated
         Indenture  except as  otherwise  in this  Section  provided;  provided,
         however, that any such changes, alterations,  modifications, variations
         or  eliminations  made in a  supplemental  indenture  pursuant  to this
         Paragraph  (unless said  supplemental  indenture is made in  compliance
         with  Section  17.09) shall be  expressly  stated in such  supplemental
         indenture to become, and shall become, effective only when there are no
         Bonds  outstanding of any series  authenticated  and delivered prior to
         the execution of such supplemental  indenture;  provided further,  that
         such  supplemental  indenture shall be specifically  referred to in the
         text of all Bonds of any series  authenticated  and delivered after the
         execution of such supplemental  indenture;  provided further,  that the
         Trustee may, in its uncontrolled discretion,  decline to enter into any
         such  supplemental  indenture  which,  in its  opinion,  may not afford
         adequate   protection  to  the  Trustee  when  the  same  shall  become
         operative;

                  I. For any other  purpose not  inconsistent  with the terms of
         this Restated  Indenture and which shall not impair the security of the
         same,  or for  the  purpose  of  curing  any  ambiguity  or of  curing,
         correcting or  supplementing  any defective or inconsistent  provisions
         contained herein or in any supplemental indenture;

                  J.  To provide for the procedures  required to permit the
         Company to utilize,  at its option, a  noncertificated system of
         registration for all or any series of the Bonds; and/or

                  K.  To  enter  into a  restatement  of the  Indenture  without
         material  modifications  and  including  all  amendments  contained  in
         supplements  that  remain  in  effect,  with  authority  to  reorganize
         material,  renumber and letter,  include reference  headings and remove
         language  no longer  applicable  and  clarify  any  ambiguities  in the
         Indenture as amended.

<PAGE>

         No  such  Supplemental  Indenture  shall  eliminate,  nor  contain  any
provision in contravention of, any provision of this Restated Indenture required
to be included herein by any provision of Sections 310 to 317, inclusive, of the
Trust  Indenture  Act of 1939,  insofar as such  provision  affects the Existing
Bonds or any other  series of Bonds to which the  provisions  of this  paragraph
have been made applicable by specific  provision of the  Supplemental  Indenture
creating them.

         Section 16.02.  Authority of Trustee. The Trustee is authorized to join
with the Company in the execution of any such  supplemental  indenture,  to make
the further agreements and stipulations  which may be therein contained,  and to
accept the conveyance,  transfer and assignment of any property thereunder.  Any
supplemental indenture executed in accordance with any of the provisions of this
Article shall  thereafter  form a part of this Restated  Indenture;  and all the
terms and  conditions  contained  in any such  supplemental  indenture as to any
provision  authorized to be contained  therein shall be and be deemed to be part
of the terms and conditions of this Restated Indenture for any and all purposes,
and, if deemed  necessary  or  desirable  by the  Trustee,  any of such terms or
conditions may be set forth in reasonable  and customary  manner in the Bonds of
the series to which such  supplemental  indenture  shall  apply.  In case of the
execution and delivery of any supplemental  indenture,  express reference may be
made thereto in the text of the Bonds of any series  authenticated and delivered
thereafter, if deemed necessary or desirable by the Trustee.

         Section 16.03.  Trustee's  Discretion.  In each and every case provided
for in this Article, the Trustee shall be entitled to exercise its discretion in
determining whether or not any proposed supplemental  indenture,  or any term or
provision therein contained, is proper or desirable, having in view the purposes
of such instrument, the needs of the Company, and the rights and interest of the
Bondholders,  and the Trustee shall, subject to the provisions of Section 14.02,
be under no  responsibility  or liability to the Company or to any Bondholder or
to anyone  whomsoever,  for any act or thing which it may do or decline to do in
good faith,  subject to the provisions of this Article,  in the exercise of such
discretion.  Subject to the  provisions of Section  14.02,  the Trustee shall be
entitled to receive, and shall be fully protected in relying upon, an Opinion of
Counsel,  complying with the provisions of Section 1.02, as conclusive  evidence
that any such  supplemental  indenture  complies  with  the  provisions  of this
Restated Indenture,  and that it is proper for the Trustee, under the provisions
of this Article, to join in the execution of such supplemental indenture.


                                ARTICLE SEVENTEEN

                             MEETING OF BONDHOLDERS

         Section  17.01.  Modification  of Restated  Indenture  by  Bondholders.
Modifications and alterations of this Restated Indenture and/or of any indenture
supplemental  hereto and/or of the rights and  obligations of the Company and/or
of the holders of outstanding  Bonds issued hereunder may be made as provided in
Sections 17.02 to 17.11, inclusive.

<PAGE>

         Sections 17.02. Calling Meetings of Bondholders and Notice. The Trustee
may at any time call a meeting of the Bondholders affected by the business to be
submitted to the meeting and it shall call such a meeting on the Written Request
of the Company,  given pursuant to a Resolution of the Board,  or on the written
request of the  holders of not less than a majority in  principal  amount of the
Bonds affected by the business to be submitted to the meeting and outstanding at
the time of such  request.  In the event the  trustee  shall fail for 10 days to
call a  meeting,  after  being  thereunto  requested  by  the  company  or  such
Bondholders  as aforesaid,  the holders of not less than a majority in principal
amount of the Bonds affected by the business to be submitted to the meeting,  or
the Company pursuant to a Resolution of the Board, may call such meeting.  Every
such meeting shall be held in the Borough of Manhattan, The City of New York, or
such other place as the Company,  with the written  consent of the Trustee,  may
appoint.  In the case of every such meeting called by the Trustee written notice
thereof, stating the place and time thereof and in general terms the business to
be  submitted,  shall be mailed by the Trustee not less than 30 days before such
meeting to each registered  holder of outstanding Bonds affected by the business
to be submitted to the meeting, addressed to him at his address appearing on the
Bond  register of the Company,  (b) to each other holder of any Bond affected by
the business to be submitted  to the meeting  whose name and address  appears in
the  information  preserved  at the time by the  Trustee as  provided in Section
9.17, and (c) to the Company, and shall be published by the Trustee once in each
of the four successive  calendar weeks  immediately  preceding the week in which
the meeting is to be held, in at least one  Authorized  Newspaper in the Borough
of Manhattan,  The City of New York (such publication to be made upon any day of
the week and in any such  newspaper,  but the  publication in the first calendar
week to be made  not  less  than 28 days  prior  to the  date of such  meeting);
provided, however, that the mailing of such notice to any Bondholder affected by
the business to be  submitted  to the  meeting,  shall in no case be a condition
precedent to the holding of such  meeting,  and neither  failure so to mail such
notice to any such holder or holders nor any defect in such notice  shall affect
the validity of the proceedings taken at such meeting. If such meeting is called
by the Company or  Bondholders  affected by the  business to be submitted to the
meeting,  notice of such meeting shall be sufficient for all purposes  hereof if
given by newspaper  publication as aforesaid,  stating the place and time of the
meeting  and in general  terms the  business  to be  transacted.  Any meeting of
Bondholders,  including any adjourned meeting,  shall be valid without notice if
the holders of all outstanding Bonds affected by the business to be submitted to
the meeting are present in person or by proxy and if the Company and the Trustee
are  present  by duly  authorized  representatives,  or if  notice  is waived in
writing  before  or  after  the  meeting  by the  Company,  the  holders  of all
outstanding Bonds affected by the business to be submitted to the meeting, or by
such as are not present in person or by proxy, and by the Trustee.

<PAGE>

         Section 17.03.  Qualifications  of  Bondholders  to Vote.  Officers and
nominees of the  Company  may attend  such  meeting but shall not be entitled to
vote  thereat.  Officers and nominees of the Trustee may attend such meeting and
may vote thereat Bonds held by them in their  individual  or any other  capacity
but not Bonds held by the Trustee as such  hereunder.  Attendance by Bondholders
may be in person or by proxy.  In order  that the  holders  of Bonds  payable to
bearer and their proxies may attend and vote without  producing their Bonds, the
Trustee,  with respect to any such meeting  called by the Trustee,  may make and
from time to time vary such regulations as it shall think fit for the deposit of
Bonds with or the exhibition of Bonds to any banks,  bankers or trust companies,
and for the issue,  to the persons  depositing  or  exhibiting  such  Bonds,  of
certificates  by such  depositaries  entitling the holders thereof to be present
and vote at any such meeting and to appoint  proxies to represent  them and vote
for them at any such  meeting in the same way as if the  persons so present  and
voting,  either  personally or by proxy, were the actual bearers of the Bonds in
respect of which such certificates shall have been issued,  notwithstanding  any
transfer of such Bonds subsequent to the issuance of such certificates,  and any
regulations so made shall be binding and effective.  Each such certificate shall
state the date on which the Bond or bonds in respect  of which such  certificate
was issued  were  deposited  with or  exhibited  to such  bank,  banker or trust
company and the series,  maturities and serial  numbers of such Bonds.  Any such
certificate which does not require such Bond or Bonds to be deposited and remain
on deposit until after the meeting or until surrender of such certificate, shall
either  (a) recite  that the Bond or Bonds in respect of which such  certificate
was issued have been  endorsed by any such bank,  banker or trust company with a
notation as to the issuance of such  certificate (and all such Bonds shall be so
endorsed  and no Bond so  endorsed  may be voted at the  meeting  except  by the
holder of the certificate or the duly authorized  proxy of such holder),  or (b)
shall entitle the holder thereof or his proxy to vote at any meeting only if the
Bond or Bonds in respect of which it was issued are not  produced at the time of
the meeting by any person and are not at the time of the meeting  registered  in
the name of any person.  In the event that two or more such  certificates of the
kind referred to in (b) above shall be issued with respect to the same Bond, the
certificate  bearing  the  latest  date  shall be  recognized  and be  deemed to
supersede any such certificate or certificates  previously  issued in respect of
such Bond. If any such meeting shall have been called by Bondholders affected by
the business to be submitted to the meeting, or by the Company as aforesaid upon
failure of the  Trustee to call the same after  having been so  requested  to do
under the  provisions  of Section  17.02,  regulations  to like  effect for such
deposit  of  Bonds  with,  or  such  exhibition  of  Bonds  to,  and  issues  of
certificates  by,  any bank or trust  company  organized  under  the laws of the
United States of American or of any State thereof,  having a capital of not less
than $250,000,  shall be similarly binding and effective for all purposes hereof
if adopted or approved by the Bondholders  calling such meeting, or by the Board
of  Directors  of the  Company if such  meeting  shall  have been  called by the
Company,  provided that in either such case copies of such regulations  shall be
filed with the Trustee.  Modifications of any such regulations,  whether made by
the Trustee, the Company or the Bondholders, shall not be made during the period
from the date of first  publication  of notice of any such  meeting to the final
adjournment thereof.

         Section  17.04.  Proxy  Voting  Allowed.  Subject  to the  restrictions
specified in Sections  17.03 and 17.07,  any  registered  holder of  outstanding
Bonds affected by the business to be submitted to the meeting, and any holder of
a certificate  provided for in Section 17.03 for bonds  affected by the business
to be  submitted,  shall be entitled in person or by proxy to attend and vote at
such meeting as holder of the Bonds  registered or certified in the name of such
holder,  without  producing such Bonds.  all others seeking to attend or vote at
such  meeting  in  person or by  proxy,  must,  if  required  by any  authorized
representative of the Trustee or the Company or by any other bondholder entitled
to vote at such meeting, produce the Bonds claimed to be owned or represented at
such  meeting,  and  everyone  seeking to attend or vote  shall,  if required as
aforesaid,  produce such further proof of Bond ownership or personal identity as
shall be satisfactory to the authorized  representative  of the Trustee,  or, if
none be present,  then to the  Inspectors  of Votes  hereinafter  provided  for.
Proxies   shall  be   acknowledged   before  an  officer   authorized   to  take
acknowledgments  of  instruments to be recorded in the  jurisdiction  where such
acknowledgment  is taken,  and all proxies  and  certificates  presented  at any
meeting  shall be  delivered  to said  Inspectors  of Votes and  filed  with the
Trustee.


<PAGE>


         Section  17.05.  Conduct of Meeting.  Persons named by the Trustee,  if
represented  at the  meeting,  shall act as temporary  Chairman  and  Secretary,
respectively  of the meeting,  but if the Trustee  shall not be  represented  or
shall fail to nominate  such persons or if any person so nominated  shall not be
present,  the  Bondholders  and proxies present and entitled to vote shall, by a
majority vote, irrespective of the amount of their holdings, elect other persons
from those present to fill such vacancy or vacancies. A permanent Chairman and a
permanent  Secretary of such meeting  shall be elected from those present by the
Bondholders  and  proxies  present  and  entitled  to vote,  by a majority  vote
irrespective of the amount of their holdings. The Trustee, if represented at the
meeting, shall appoint two Inspectors of Votes who shall count all votes cast at
such  meeting,  except votes on the election of a Chairman and  Secretary,  both
temporary  and  permanent,  as  aforesaid,  and who shall make and file with the
permanent Secretary of the meeting their verified written report in duplicate of
all such votes so cast at said meeting.  If the Trustee shall not be represented
at the meeting or shall fail to nominate  such  Inspectors of Votes or if either
Inspector of Votes fails to attend the meeting,  the vacancy  shall be filled by
appointment by the permanent Chairman of the meeting.

         Section  17.06.  Quorum for Meeting.  Subject to the provisions of this
Section and Section 17.10, the persons entitled to vote with respect to not less
than  66_% in  principal  amount of the Bonds  outstanding  hereunder  when such
meeting is held must be  present at such  meeting in person or by proxy in order
to  constitute a quorum for the  transaction  of  business,  less than a quorum,
however,  having power to adjourn;  provided,  however, that in case one or more
series of Bonds outstanding under this Restated Indenture,  but less than all of
the series of Bonds outstanding, are affected thereby, then the persons entitled
to vote with respect to not less than 66_% in  principal  amount of the Bonds of
each series affected  thereby shall also be present to constitute a quorum.  The
determination  of the  Trustee  as to which  series of Bonds are to be  affected
shall be conclusive. If such meeting is adjourned by less than a quorum for more
than 30 days,  notice  thereof shall  forthwith be mailed by the Trustee if such
meeting shall have been called by it (a) to the Company,  (b) to each registered
holder of outstanding Bonds entitled to notice,  addressed to him at his address
appearing  on the Bond  register of the  Company,  and (c) to each holder of any
such Bond payable to bearer who shall have filed with the Trustee an address for
notices,  addressed to him at such address, or whose name and address appears in
the  information  preserved  at the time by the  Trustee as  provided in Section
9.17,  and  shall be  published  at least  once in each  30-day  period  of such
adjournment in one Authorized Newspaper in the Borough of Manhattan, The City of
New  York  (upon  any day of the  week  and in any  such  newspaper);  provided,
however,  that the  mailing of such  notice to any  Bondholder  affected  by the
business  to be  considered  at such  adjourned  meeting  shall  in no case be a
condition  precedent to the holding of such meeting,  and neither  failure so to
mail such  notice to any such  holder or holders  nor any defect in such  notice
shall  affect the validity of the  proceedings  taken at such  meeting.  If such
meeting  shall  have been  called by  Bondholders  or by the  Company  after the
failure  of the  Trustee  to all the  same  after  being  requested  so to do in
accordance  with the  provisions of Section  17.02,  notice of such  adjournment
shall be published by the permanent Chairman and the permanent  Secretary of the
meeting in the newspaper  and for the number of times  specified in this Section
and shall be sufficient if so published.

<PAGE>

         Section 17.07. Vote Required. Subject to the provisions of this Section
and of Sections 17.06 and 17.10, any modification or alteration of this Restated
Indenture and/or of any indenture  supplemental  hereto and/or of the rights and
obligations  of the Company  and/or of the holders of Bonds issued  hereunder in
any particular (including, without limitation, waiver of a default in compliance
with  provisions  of  this  Restated  Indenture  or  of  any  such  supplemental
indenture)  may be made at a meeting of  Bondholders  duly  convened and held in
accordance  with the  provisions  of this Article,  but only by resolution  duly
adopted by the affirmative  vote of the persons entitled to vote with respect to
at least 66_% in principal  amount of the Bonds then outstanding and entitled to
consent and of the persons  entitled to vote with  respect to not less than 66_%
in  principal  amount of the Bonds then  outstanding  and entitled to consent of
each  series  affected  in case one or more but less  than all of the  series of
Bonds issued under this  Restated  Indenture  are to be affected,  or adopted as
provided  in  Section  18.11,  and  approved  by a  Resolution  of the  Board as
hereinafter  specified;   provided,   however,  that  so  such  modification  or
alteration shall

                  (A)  postpone  the date  fixed  herein or in the Bonds for the
         payment of the  principal  of, or any  installment  of interest on, the
         Bonds,

                  (B) reduce the principal of, or the rate of interest payable
         on, the Bonds, or

                  (C) reduce the  percentage  of the  principal  amount of Bonds
         required for the  authorization of any such modification or alteration,
         or

                  (D) modify,  without the written  consent of the Trustee,  the
         rights, duties or immunities of the Trustee.

         For all purposes of this  Article,  the Trustee  shall,  subject to the
provisions of Section 14.02, be entitled to rely upon an Opinion of Counsel with
respect to the  extent,  if any, as to which any action to be  submitted  to, or
taken at, such meeting affects the rights under this Restated Indenture or under
any  indenture  supplemental  hereto of any  holders of Bonds of any series then
outstanding hereunder.

         No  such  Supplemental  Indenture  shall  eliminate,  nor  contain  any
provision in contravention of, any provision of this Restated Indenture required
to be included herein by any provision of Sections 310 to 317, inclusive, of the
Trust  Indenture  Act of 1939,  insofar as such  provision  affects the Existing
Bonds,  or any other series of Bonds to which the  provisions of this  paragraph
have been made applicable by specific  provision of the  Supplemental  Indenture
creating them.

<PAGE>
         Section 17.08.  Records of Meetings and Notices.  A record in duplicate
of the  proceedings  of each  meeting of  Bondholders  shall be  prepared by the
permanent  Secretary of the meeting and shall have attached thereto the original
reports of the Inspectors of Votes, and affidavits by one or more persons having
knowledge  of the facts,  showing a copy of the notice of the meeting and a copy
of the notice of  adjournment  thereof,  if  required  under the  provisions  of
Section  17.06,  and showing  that said  notices  were mailed and  published  as
provided in Section 17.02,  and, in a proper case, as provided in Section 17.06.
Such record  shall be signed and  verified by the  affidavits  of the  permanent
Chairman and the permanent  Secretary of the meeting,  and one duplicate thereof
shall be delivered to the Company and the other to the Trustee for  preservation
by the Trustee.  Any record so signed and verified shall be proof of the matters
therein  stated until the  contrary is proved,  and if such record shall also be
signed and verified by the affidavit of a duly authorized  representative of the
Trustee,  such meeting shall be deemed  conclusively  to have been duly convened
and held and such record shall be  conclusive,  and any resolution or proceeding
stated  in  such  record  to  have  been  adopted  or  taken,  shall  be  deemed
conclusively to have been duly adopted or taken by such meeting.  A true copy of
any  resolution  adopted by such meeting  shall be mailed by the Trustee to each
registered  holder  of  outstanding  Bonds  entitled  to vote  at  such  meeting
addressed to him at his address  appearing  on the Bond  register of the Company
and to each other holder of any such Bond whose name and address  appears in the
latest  information  furnished  to or  received  by the  trustee as  provided in
Section  9.17;  and proof of such mailing by the affidavit of some person having
knowledge  of the fact shall be filed with the Trustee,  but neither  failure to
mail copies of such  resolution  as  aforesaid,  nor any defect  therein,  shall
affect the validity  thereof.  No such  resolution  shall be binding  unless and
until such  resolution  is  approved by a  Resolution  of the Board filed by the
Company with the  Trustee,  but if such  Resolution  of the Board is adopted and
filed with the Trustee, the resolution so adopted at such meeting of Bondholders
shall be binding  upon the  Company,  the  Trustee  and the holders of all Bonds
issued hereunder,  at the expiration of 60 days after such filing, except in the
event of a final decree of a court of competent  jurisdiction setting aside such
resolution, or annulling the action taken thereby in a legal action or equitable
proceeding  for such purposes  commenced  within such 60-day  period;  provided,
however,  that no such  resolution of the Bondholders or of the Company shall in
any manner be so construed as to change or modify any of the rights,  immunities
or obligations of the Trustee  without its written  assent  thereto.  Nothing in
this Article  contained shall be deemed or construed to authorize or permit,  by
reason of any call of a meeting  of  Bondholders  or of any right  expressly  or
impliedly conferred hereunder to make such a call, any hindrance or delay in the
exercise of any right or rights  conferred upon or reserved to the Trustee or to
the Bondholders under any of the provisions of this Restated Indenture or of the
Bonds.

<PAGE>

         Section  17.09.   Actions  Noted  on  Bonds.  Bonds  authenticated  and
delivered after the date of any Bondholders' meeting may bear a notation in form
approved  by the  Trustee  as to the action  taken at  meetings  of  Bondholders
theretofore  held, and, upon demand of the holder of any Bond outstanding at the
date of any such meeting and affected thereby and upon  presentation of his Bond
for the purpose at the principal office of the Trustee,  the Company shall cause
suitable  notation to be made on such Bond, by endorsement or otherwise,  of any
action taken at any meeting of Bondholders  theretofore  held. If the Company or
the Trustee shall so determine,  new Bonds so modified as, in the opinion of the
Trustee  and  the  Board  of  Directors  of the  company,  to  conform  to  such
Bondholders' resolution,  shall be executed,  authenticated and delivered,  and,
upon demand of the holders of any Bonds then  outstanding  and  affected by such
resolution,  shall be issued, without cost to such Bondholders,  in exchange for
such outstanding  Bonds upon surrender of such Bonds. The Company or the Trustee
may  require  Bonds  outstanding  to be  presented  for  notation or exchange as
aforesaid  if  either  shall  see fit to do so.  An  instrument  or  instruments
supplemental to this Restated Indenture embodying any modification or alteration
of this Restated Indenture or of any indenture  supplemental  hereto made at any
Bondholders' meeting and approved by Resolution of the Board, as aforesaid,  may
be executed by the Trustee and the Company,  and,  upon demand of the Trustee or
if so  specified in any  resolution  adopted by any such  Bondholders'  meeting,
shall be executed by the Company and the Trustee.  The Trustee shall, subject to
the provisions of Section 14.02,  be fully  protected in relying upon an Opinion
of Counsel as conclusive evidence that any such supplemental  indenture complies
with the  provisions  of this  Restated  Indenture and that it is proper for the
Trustee, under the provisions of this Article to join in the execution thereof.

         Section 17.10.  Nullification  of Article  Seventeen.  Anything in this
Article contained to the contrary notwithstanding,  the Company may at any time,
or from  time to time,  by  Resolution  of the  Board  filed  with the  Trustee,
stipulate  that,  from and after the date of the filing of such  Resolution with
the Trustee,  none of the  provisions  of this Article  shall be of any force or
effect whatever either with respect to (1) all Bonds  theretofore  authenticated
and  delivered by the Trustee  hereunder  and then  outstanding,  and/or (2) any
Bonds and/or all Bonds  thereafter  authenticated  and  delivered by the Trustee
hereunder,  and in any such event a supplemental indenture setting out in detail
the stipulations contained in such Resolution of the Board shall be made.

         Section  17.11.  Written  Consent in Lieu of Meeting.  Anything in this
Article contained to the contrary notwithstanding, the Trustee shall receive the
written  consent or consents of the holders of 66_% or more in principal  amount
of the Bonds then outstanding and entitled to consent and of the holders of 66_%
or more in  principal  amount of the Bonds  then  outstanding  and  entitled  to
consent  of each  series  affected  in case one or more but less than all of the
series of Bonds issued under this Restated Indenture are to be affected, in lieu
of the holding of a meeting pursuant to this Article Eighteen and in lieu of all
action at such a meeting.

         Section 17.12.  Trustee's Expenses.  The Company covenants to reimburse
the  Trustee for any expense  incurred  by it in the  performance  of its duties
under the provisions of this Article.


                                ARTICLE EIGHTEEN

                            MISCELLANEOUS PROVISIONS

         Section  18.01.  Binding on  Successors  and Assigns.  Whenever in this
Restated  Indenture  either of the parties  hereto is named or referred to, this
shall be deemed to include  (unless  the context  indicates  the  contrary)  the
successors  or assigns of such party,  and except as  expressly  provided to the
contrary all the covenants and agreements in this Restated  Indenture  contained
by or on behalf of the Company or by or on behalf of the Trustee  shall bind and
enure to the benefit of the  respective  successors and assigns of such parties,
whether so expressed or not.

<PAGE>

         Section  18.02.  Rights  Limited to Company,  Bondholders  and Trustee.
Nothing in this Restated  Indenture,  expressed or implied, is intended or shall
be  construed to confer upon,  or to give to, any person or  corporation,  other
than the parties hereto and the holders of the Bonds outstanding hereunder,  any
right,  remedy,  or claim under or by reason of this  Restated  Indenture or any
covenant, condition or stipulation hereof; and all the covenants,  stipulations,
promises and agreements in this Restated Indenture  contained by or on behalf of
the Company shall be for the sole and exclusive  benefit of the parties  hereto,
and of the holders of the Bonds outstanding hereunder.

         Section 18.03.  Trust Indenture Act Controls.  If any provision of this
Restated  Indenture  limits,  qualifies,  or conflicts  with  another  provision
required to be included herein by any of Sections 310 to 317, inclusive,  of the
Trust  Indenture  Act of 1939,  as  amended,  the  provision  required  so to be
included shall control, and the Restated Indenture shall be deemed to be amended
accordingly.

         Section  18.04.  Headings.  The headings to Articles  and  Sections
are only for ease of reference  and are not to be asserted or used to interpret
this Restated Indenture.

         Section 18.05.  Complete Agreement.  This Restated Indenture completely
restates and amends the Indenture  without any  interruption  of the Lien of the
Indenture, which continues under the Restated Indenture against the Trust Estate
described herein.  This Restated  Indenture states the complete agreement of the
parties  hereto  without  any  reference  to  the  Original  Indenture  and  the
thirty-one supplemental indentures thereto.

         Section  18.06.  Receipt of Copy.  The  Company,  by the  execution
hereof,  acknowledges  that a true copy of this  Restated Indenture has been
delivered to and received by it.

         Section  18.07.  Executed in  Counterparts.  This Restated  Indenture
may be executed in several  counterparts,  all or any of which may be treated
for all purposes as one original and shall constitute and be one and the same
instrument.

<PAGE>

         IN WITNESS  WHEREOF,  BLACK HILLS  CORPORATION has caused its corporate
name to be hereunto affixed,  and this instrument to be signed and sealed by its
President  or a  Vice-President,  and its  corporate  seal to be attested by its
Secretary  or an  Assistant  Secretary  for and in its  behalf,  and  THE  CHASE
MANHATTAN  BANK in evidence of its acceptance of the trust hereby  created,  has
caused its  corporate  name to be hereunto  affixed,  and this  instrument to be
signed and sealed by one of its Vice-Presidents or Assistant Vice-Presidents and
attested by its Secretary or an Assistant Secretary.

                                               BLACK HILLS CORPORATION


                                               By /s/ Gary R. Fish
Attest:


/s/ Roxann R. Basham
Secretary

Signed, sealed and delivered by
BLACK HILLS CORPORATION
in the presence of:


/s/ Rhonda R. Lingle
/s/ Lorna Zacher
----------------------------

                                                THE CHASE MANHATTAN BANK


                                                By /s/ Glenn McKeever
                                                   Vice-President
Attest:


Trust Officer

Signed, sealed and delivered by
THE CHASE MANHATTAN BANK
in the presence of:

/s/ William G. Keenan
----------------------------
/s/ N. Rodngnez
----------------------------


<PAGE>


STATE OF NEW YORK

COUNTY OF NEW YORK

         On this 17th day of September,  1999,  before me, the undersigned
officer, personally appeared  Glenn G. McKeever who acknowledged himself
to be the Vice President of The Chase  Manhattan  Bank, a New York  corporation,
and that he, as such  Vice-President  being  authorized  so to do,  executed the
foregoing  instrument for the purposes therein  contained by signing the name of
the corporation by himself as Vice-President.

         IN WITNESS WHEREOF, I hereunto set my hand and official seal.



                                    /s/ Emily Laye
                                    Notary Public
(SEAL)                              My commission expires: December 31, 1999

STATE OF SOUTH DAKOTA

COUNTY OF PENNINGTON

         On this 8th day of September, 1999, before me, the undersigned
officer,  personally  appeared Gary R. Fish, who acknowledged  himself to be the
President  and Chief  Operating  Officer of  Nonregulated  Energy Group of Black
Hills Corporation,  a corporation,  and that he, as such corporate officer being
authorized so to do, executed the foregoing  instrument for the purposes therein
contained by signing the name of the corporation by himself as such officer.

         IN WITNESS WHEREOF, I hereunto set my hand and official seal.



                                         /s/ Barbara Rask
                                         Notary Public
(SEAL)                                   My commission expires:  July 25, 2005



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