LAIDLAW ENVIRONMENTAL SERVICES INC
10-K405, 1997-10-31
HAZARDOUS WASTE MANAGEMENT
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<PAGE>   1



                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549


                                    FORM 10-K


                  ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d)
                     OF THE SECURITIES EXCHANGE ACT OF 1934

                    For the Fiscal Year Ended August 31, 1997

                          Commission File Number 1-8368


                      LAIDLAW ENVIRONMENTAL SERVICES, INC.
- --------------------------------------------------------------------------------
             (Exact name of registrant as specified in its charter)


            Delaware                                  51-0228924
- --------------------------------------------------------------------------------
(State or other jurisdiction of                    (I.R.S. Employer
 incorporation or organization)                   Identification No.)

1301 Gervais Street, Columbia, South Carolina            29201
- --------------------------------------------------------------------------------
   (Address of principal executive offices)           (Zip Code)

       Registrant's telephone number, including area code: (803) 933-4200

     Title of each class      Name of each exchange on which registered 
        Common Stock                  New York Stock Exchange 
      Par Value $1.00                  Pacific Exchange, Inc.

        Securities registered pursuant to section 12(g) of the Act: None

Indicate by check mark whether the registrant (1) has filed all reports required
to be filed by Sections 13 or 15(d) of the Securities Exchange Act of 1934
during the preceding 12 months (or for such shorter period that the registrant
was required to file such reports), and (2) has been subject to such filing
requirements for the past 90 days. Yes   X    No 
                                       -----     -----

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405
of Regulation S-K is not contained herein, and will not be contained, to the
best of registrant's knowledge, in definitive proxy or information statements
incorporated by reference in Part III of this Form 10-K or any amendment to this
Form 10-K. [X]

The aggregate market value of the voting stock held by non-affiliates of the
registrant was $257,192,000 as of October 14, 1997.

The number of shares of the issuer's common stock outstanding as of October 14,
1997 was 180,549,911.

                       DOCUMENTS INCORPORATED BY REFERENCE

Portions of the Annual Report to Stockholders for the fiscal year ended August
31, 1997 are incorporated in Parts I and II of Form 10-K.

Portions of the Proxy Statement for the Annual Meeting of Stockholders to be
held November 25, 1997 are incorporated in Part III of Form 10-K.



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                                     PART I

ITEM 1. BUSINESS.

                                     GENERAL

         Laidlaw Environmental Services, Inc. (the "Company" or "Registrant")
provides hazardous and industrial waste management services throughout North
America. The Company collects, transports, treats and disposes of waste by
incineration, landfilling and other methods at its facilities located in the
United States and Canada. The Company also operates waste processing, recycling
and repackaging facilities and has analytical laboratories at its facilities in
several states.

         On May 15, 1997, pursuant to a February 6, 1997, stock purchase
agreement (the "Stock Purchase Agreement") between Rollins Environmental
Services, Inc. ("Rollins") and Laidlaw Inc. ("Laidlaw"), Rollins acquired the
hazardous and industrial waste operations of Laidlaw ("Old LESI" or the
"Accounting Acquirer") (the "Acquisition"). The business combination was
accounted for as a reverse acquisition using the purchase method of accounting.
Rollins issued 120 million common shares and a $350 million 5% subordinated
convertible debenture, and paid $349.1 million in cash ($400 million, less debt
of $50.9 million assumed), to Laidlaw to consummate the Acquisition. Coincident
with the closing of the Acquisition, the continuing legal entity changed its
name from Rollins Environmental Services, Inc. to Laidlaw Environmental
Services, Inc. As a result of the Acquisition, Laidlaw owns 67% of the issued
common shares of the Company. The Company accordingly adopted the Accounting
Acquirer's fiscal year-end of August 31.

         Old LESI consisted of all direct and indirect subsidiaries of Laidlaw
engaged in the hazardous and industrial waste business, other than JTM
Industries, Inc. and its subsidiary, KBK Enterprises, Inc. Prior to the
Acquisition, Old LESI provided hazardous and industrial waste services from 85
service locations in 26 states and seven Canadian provinces. Although Old LESI
was a conglomerate of separate entities, these entities conducted such services
primarily under the name "Laidlaw Environmental Services."

         The Registrant was incorporated in Delaware in 1968. Its principal
executive office is located at 1301 Gervais Street, Suite 300, Columbia, South
Carolina 29201 and its telephone number is 803-933-4200.

         The Company, in providing hazardous and industrial waste services, is
engaged in five primary lines, or classes, of business: (a) service center, (b)
landfill, (c) incineration, (d) transportation and (e) specialty services,
including polycholorinated biphenyl ("PCB") management, wastewater treatment and
other specialty services.

         The Company's revenues and income are derived from one industry segment
and principally in the United States, which includes the collection,
transportation, processing/recovery and disposal of hazardous and industrial
wastes. The segment renders services to a variety of commercial, industrial,
governmental and residential customers. Substantially all revenues represent
income from unaffiliated customers.

         The percentages of the Company's gross revenue contributed by its
business classes for the last three fiscal years ended August 31, were as
follows:

<TABLE>
<CAPTION>
                                        1997             1996             1995
                                        ----             ----             ----
<S>                                     <C>              <C>              <C> 
         Service Centers                 38%              39%              41%
         Landfill                        22%              25%              21%
         Incineration                    11%               4%               4%
         Transportation                  12%              12%              15%
         Specialty Services              17%              20%              19%
                                        ---              ---              ---

         Total Revenue                  100%             100%             100%
                                        ===              ===              ===
</TABLE>



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                                 SERVICE CENTER

         Service centers across the United States and Canada provide a link from
the customer to the final disposal or treatment facility. Waste materials are
transported from a customer site to a service center, where they are temporarily
stored or consolidated with compatible waste streams for more efficient
transportation to final treatment and/or disposal destinations. All of the
Company's service centers in the United States have Part B permits under the
United States Resource Conservation and Recovery Act ("RCRA") that, among other
things, allow the Company to store waste for up to one year for bulking and/or
transfer purposes. Additionally, the Company operates smaller satellite
locations which act as local collection points for the service centers. Through
its service center network, the Company can access its customers quickly in
order to collect their waste streams, thus enabling customers to remain in
compliance with on-site storage regulations.

         The Company typically sends one or more chemists to customer sites to
sample, segregate, prepare and package waste material for transportation. If the
amount of the material is large enough, the waste may be routed directly to one
of the Company's permitted treatment and disposal facilities. Customers with low
volume waste streams can have their streams transported to the nearest service
center and have it consolidated with compatible wastes from other generators
until there is sufficient material for treatment and disposal. After "profiling"
(chemically identifying) the waste materials, the Company's chemists inventory
the waste in such a manner as to ensure that the wastes are stored with other
chemically compatible waste. Each storage location is designed to separate
chemically incompatible material and to allow for easy access once a full
shipment of similar material has accumulated. Materials are then shipped to the
appropriate disposal sites. This collection and treatment system affords smaller
generators high levels of service and allows them to benefit from the economy of
scale normally available only to high volume customers.

         The Company also has on-site field operations headquartered at its
service centers, including lab-packing services, field services and household
hazardous waste collection programs.

         The Company performs a variety of resource recovery processes at many
of its service centers. Resource recovery involves the distillation of used
solvents to remove contaminants and then the return of the material to the
market as a solvent or for use as fuel. Most of these hazardous materials come
from the aerospace and transportation industries and the metals finishing
industries. Fuel substitution, mainly in the energy intensive cement
manufacturing process, is the most prevalent form of resource recovery.

         Service centers are the largest source of waste streams for the
Company's treatment and disposal facilities. In 1997, 68% of disposal was routed
to intercompany locations. A diverse mix of locations allows the service centers
also to serve as hubs for regional sales efforts, local community hazardous
material collection efforts and other geographically specific initiatives. The
Company provides hazardous waste services from 53 locations composed of 23
permitted sites and 30 satellite offices in 32 states, seven Canadian provinces
and Puerto Rico.


                                    LANDFILL

         The Company operates 12 landfills located throughout the United States
and Canada. A total of eight landfills are designed and permitted for the
disposal of hazardous wastes. Four landfills are operated for non-hazardous
industrial waste disposal, and to a lesser extent, municipal solid waste.

         The Company operates eight of the 23 permitted hazardous waste
landfills in North America, with 52 million cubic yards of remaining permitted
capacity (which at current fill rates represents in excess of 50 years of
capacity). Of these facilities, six are located in the United States and two in
Canada.

         In the United States, the Company's hazardous waste landfills have been
issued RCRA Subtitle C permits. The EPA's permitting process for RCRA Subtitle C
landfills is very rigorous. Before a permit can be issued, the applicant must
provide detailed waste analysis, spill prevention and control counter-measure
plans, detailed design specifications (which include liner design, leak
detection systems and rainwater removal systems), groundwater monitoring,
employee training and geologic/hydrogeologic investigations. Furthermore, the
applicant must post financial assurance instruments for landfill cell and site
closure and post-closure care. All six of the Company's United States hazardous
waste landfills have received Part B landfill permits and meet or exceed
Subtitle C requirements. These permits are generally issued for periods of five
or ten years, after which the permit must be reviewed by state and/or federal
regulators before the permit can be renewed for additional terms. Management is
not aware of any issues at any of the Company's sites that would 



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preclude the renewal of its Part B landfill permits. During the last 12 months,
approximately 0.9 million cubic yards of hazardous wastes were disposed of in
these landfills.

         In addition to its hazardous waste landfill sites, the Company operates
four non-hazardous industrial landfills with over 209 million cubic yards of
remaining permitted capacity. The Company's non-hazardous landfill facilities
are permitted to accept commercial industrial waste, including wastes from
foundries, demolition and construction, machine shops, automobile manufacturing,
printing, metal fabrications and recycling. The Company's facility in Carbon
County, Utah also accepts municipal solid waste. During the last 12 months, 1.4
million cubic yards of non-hazardous wastes were disposed of in these landfills.


                                  INCINERATION

         The Company offers a wide range of technological capabilities and
locations to customers through a collection of incineration facilities.
Incineration is the preferred method for the treatment of organic hazardous
waste, because it effectively destroys the contaminants at temperatures in
excess of 2,000 degrees Fahrenheit. High temperature incineration effectively
eliminates organic wastes such as herbicides, plastics, halogenated solvents,
pesticides, pharmaceutical and refinery wastes, regardless of whether they are
gases, liquids, sludges or solids. Federal and state incineration regulations
require a destruction and removal efficiency of 99.99% for most organic wastes
and 99.9999% for PCBs and dioxin.

         The Company operates four United States-based solids and liquids
capable incinerators with annual capacity of over 250,000 tons, two hazardous
waste liquid injection incinerators in Canada, and one in the United States, and
two lower volume specialty incineration facilities in the United States.

         The Company's incineration facilities in Bridgeport, New Jersey; Deer
Park, Texas; Coffeyville, Kansas; and Aragonite, Utah, are designed to process
liquid organic wastes, sludges, solids, soil and debris. The Deer Park facility
has two kilns and a rotary reactor. Additionally, the Deer Park facility has an
on-site landfill for the disposal of ash and other waste material produced as a
result of the incineration process. The landfill is built and permitted to RCRA
hazardous waste standards.

         The Company's incineration facilities in Roebuck, South Carolina,
Mercier, Quebec and Sarnia, Ontario are liquid injection incinerators, designed
primarily for the destruction of liquid organic waste. The Mercier facility also
has a system to blend and destroy pumpable sludges. Typical wastestreams include
wastewater containing concentrated organic levels not amenable to conventional
physical/chemical waste treatment, pesticide and herbicide waste, waste with
high chlorinated organic concentrations and flammable materials.

         All but one of the Company's United States incineration facilities have
received Part B permits under RCRA. The facility in Roebuck, South Carolina has
received EPA approval for that portion of the Part B permit under EPA authority;
however, the required state permit which was originally issued in 1987 is
currently under appeal. Part B permits are generally issued for periods of five
or ten years, after which the permit must be reviewed by state and/or federal
regulators before the permit can be renewed for additional terms. Management is
not aware of any issues at any of the Company's sites that would preclude the
renewal of any of its Part B permits.

         During fiscal year 1997, the Company closed its incinerators at Baton
Rouge, Louisiana, and Clive, Utah, reducing utilization of less efficient and
redundant facilities. During fiscal year 1998, the Company plans to close its
incinerators at Coffeyville, Kansas, and Roebuck, South Carolina, reducing
excess capacity. These four closures will eliminate approximately 244,000 tons
of practical capacity from the off-site commercial incineration market. The
industry's total off-site commercial incinerator practical capacity was
estimated at 1.26 million tons in 1996, according to EI Digest.


                                 TRANSPORTATION

         The Company's transportation operations facilitate the movement of
materials between locations, which is key to the operation of the Company's
network of hazardous and industrial waste facilities. Transportation may be
accomplished by truck, rail, or other mode, with company-owned assets or in
conjunction with third party transporters.


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<PAGE>   5

         Specially designed containment systems, vehicles and other equipment
permitted for hazardous waste transport, along with drivers trained in
transportation skills and hazardous waste procedures, provide for the movement 
of customer waste streams.


                               SPECIALTY SERVICES

         Other specialty services provided by the Company include PCB management
services, wastewater treatment, harbor and channel dredging, remedial
construction and consulting, industrial services, analytical services,
biological treatment, and paint and solvent recovery.

         The Company recycles PCB contaminated oils and reclaims metals from PCB
contaminated equipment. The Company accomplishes this recycling and reclamation
through a de-chlorination process operated from seven facilities mainly in the
eastern United States and Canada.

         The Company provides field services for industrial customers at their
sites and at government installations, federal and state Superfund sites,
laboratories and schools across North America. These activities range from
typical environmental remediation and construction to specialized services. The
Company recently adopted its INSITE program, an environmental outsourcing
program that allows companies to achieve their environmental goals while
focusing on their core business.

         The Company also offers a range of wastewater treatment technology,
facilities and customer services. Wastewater treatment is provided from four
facilities and consists of four basic business lines: hazardous wastewater
treatment, mobile treatment, sludge dewatering/drying and non-hazardous
wastewater treatment. These services include the reduction, treatment and
disposal of both hazardous and non-hazardous wastewater, sludges and solids for
both bulk and drummed waste. The Company removes hazardous components from
hazardous industrial liquids and/or chemically/physically makes hazardous
industrial liquids non-hazardous through blending and treatment technology.
Specialized techniques reduce residues by recycling/reusing spent products.
Batch treatment technologies also enable the Company to handle hard-to-treat
wastewater streams.

         Hazardous wastewater treatment involves the safe detoxification of
hazardous components from liquid waste streams. The hazardous properties are
neutralized (pH adjustment) and/or reduced to non-leachable state, through a
multi-step treatment process. The resulting treated effluent is tested prior to
discharge to ensure compliance with discharge limits, while the sludge is
dewatered and tested to ensure that it meets the requirements for off-site
disposal as a non-hazardous waste. Because certain wastes carry hazardous waste
designation throughout the treatment system, these wastes are treated separately
to minimize dewatered sludge disposal costs. The Company's wastewater treatment
facilities are fully-permitted and approved (as applicable) under the United
States Comprehensive Environmental Response, Compensation and Liability Act of
1980, as amended ("CERCLA").

         Mobile wastewater treatment and dewatering equipment is used to dewater
industrial sludges at the generators' sites. Turn-key services include
laboratory, trained operators, treatment supplies and equipment, dewatering and
stabilization technology--all designed to provide optimal treatment chemistry
that reduces the volume of sludge generated for off-site disposal.

         Sludge drying uses transportable equipment that reduces the amount of
entrained liquid in dewatered sludge. This process is particularly effective for
organic sludges that must be incinerated at high cost. Drying greatly reduces
ultimate disposal and transportation costs by minimizing the volume of waste
sent off-site for treatment.

         The Company treats non-hazardous waste streams at all of its hazardous
wastewater plants and operates a facility specifically designed for
non-hazardous wastewater and consumer goods destruction in Chattanooga,
Tennessee.

         In connection with the Acquisition, the Company's hazardous
wastewater facility in Nashville, Tennessee was closed in May of 1997.


                                       5
<PAGE>   6

                                   COMPETITION

         The hazardous and industrial waste management industry is highly
competitive. The sources of competition vary by locality and by type of service
rendered, with competition coming from the other major waste services companies
and thousands of privately owned firms in North America which offer waste
services. The Company also competes with municipalities and larger plants which
provide their own waste services. In acquiring new contracts and maintaining
business, the Company experiences competition primarily in the areas of pricing
and service.

         Total hazardous waste industry revenues for 1995 were estimated to have
been approximately $3 billion. Prior to the Acquisition, Old LESI, Rollins and
three other large waste management companies accounted for 65% of the hazardous
waste management industry's revenues in 1995, according to EI Digest (October
1996). The pro forma combined revenues of the Company for the year ended August
31, 1996, would have given the Company a 30% market share of the hazardous waste
industry revenues for 1995.

         Service center competition consists of two companies with national
coverage providing varying forms of waste collection assets or facilities. A
number of companies also compete on a local and regional basis.

         Ten of the 15 hazardous waste landfills not operated by the Company are
operated by three competitors with landfill facilities spread throughout the
United States.

         Competitors operate large-scale incinerators at eight locations
throughout North America. Other companies have applied for or received permits
to construct and operate hazardous waste incinerators. Competition is also
encountered from cement kilns, which use hazardous waste-derived fuel as a
supplemental fuel source.


                                    CUSTOMERS

         The Company conducts business with more than 18,000 customers. These
customers represent diverse industries, including automotive manufacturers and
suppliers, chemical and petrochemical, computer and micro-processor
manufacturers, primary metals, paper, furniture, aerospace and pharmaceutical,
and are located throughout the United States and Canada. During fiscal 1997 no
one customer accounted for more than six percent of the Company's consolidated
revenues.

         The hazardous waste management business is cyclical to the extent that
it is dependent upon a stream of waste from cyclical industries. If those
cyclical industries slow significantly, the business that the Company receives
from those industries is likely to slow.


                                   SEASONALITY

         Adverse winter weather moderately affects some of the Company's
operations, particularly during the second fiscal quarter. The main reason for
this effect is reduced volumes of waste being received at the Company's
facilities and higher operating costs associated with operating in sub-freezing
weather and high levels of snowfall.


                                   REGULATIONS

         The collection and disposal of solid and hazardous wastes are subject
to laws and regulations promulgated by United States, Canadian or other foreign,
state, territorial, federal, provincial or local courts, executive offices,
legislatures, governmental agencies or ministries, commissions or
administrative, regulatory or self-regulatory authorities or instrumentalities
which regulate health, safety, the environment, zoning and land-use.
Environmental laws and regulations require hazardous waste disposal facilities
to obtain permits, which generally outline the procedures under which the
facilities must be operated. Governmental authorities have the power to enforce
compliance with these, regulations, and violations of permit conditions, or of
the regulations, even if unintentional, may result in fines, shutdowns, remedial
work or revocation of the permit. Regulations vary but generally govern
collection, storage and disposal activities and the location and use of
facilities and impose restrictions to prohibit or minimize air and water
pollution.


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<PAGE>   7

         The Company's business is significantly affected by federal, state,
provincial and local environmental law, including RCRA, the Toxic Substances
Control Act, CERCLA, the Clean Water Act and the Clean Air Act, and
corresponding state laws and related regulations and enforcement practices.
Safety standards under the Occupational Safety and Health Act are also
applicable to the Company's business.

         RCRA provides for the establishment of a national hazardous waste
management program through a comprehensive regulatory system. Among other
things, it defines hazardous wastes and provides standards for generators,
transporters and disposers of hazardous wastes, and for the issuance of permits
for sites where such material is treated, stored or disposed. These regulations
also require Company facilities to demonstrate financial assurance for sudden
and accidental and, in the case of land based treatment facilities, non-sudden
and gradual pollution occurrences. Financial assurance for future closure and
post-closure expenses must also be maintained. The Company believes that each
facility operating under interim status will be issued its final RCRA permit and
that each permit will be renewed at the end of its existing term. However, any
such issuance or renewal could include conditions requiring further capital
expenditures or corrective actions. Although the Company also believes that each
of its operating facilities complies in all material respects with the
applicable requirements of RCRA, it may be necessary to expend considerable
time, effort and money to keep existing or acquired facilities of the Company in
compliance with applicable requirements, including new regulations, to maintain
existing permits and approvals and to obtain the permits and approvals necessary
to increase their capacity.

         CERCLA, among other things, imposes financial liability for damages and
the cleanup of sites from which there is a release or threatened release of
hazardous substances into the environment. Present and past owners and operators
of sites which release hazardous substances, as well as generators and
transporters of the waste material, are jointly and severally liable for
remediation costs and environmental damages. Given the substantial costs
involved in a CERCLA cleanup and the difficulty of obtaining insurance for
environmental impairment liability, such liability could have a material impact
on the Company's business, financial condition and future prospects.

         The Clean Water Act regulates the discharge of pollutants into surface
waters and sewers from a variety of sources, including disposal sites and
treatment facilities. The Company is required to obtain discharge permits and
conduct sampling and monitoring programs. The Clean Air Act regulates the
emission of certain potentially harmful substances into the air. These
regulations also impact the Company's operations. The Company believes each of
its operating facilities complies in all material respects with the applicable
requirements.


               ENVIRONMENTAL LIABILITIES AND CAPITAL EXPENDITURES

         A portion of the Company's capital expenditures are related to
compliance with environmental laws and regulations. The Company estimates
capital spending of approximately $1 million for fiscal year 1998, and $3
million in the aggregate for the fiscal years 1999 through 2001 in order to
comply with RCRA, the Clean Air Act and other environmental laws and regulations
currently in effect.

         In addition to these capital expenditures, the Company may incur costs
in connection with closure activities at certain of its sites. When the Company
discontinues using or changes the use of a hazardous waste management unit,
formal closure procedures must be followed, and such procedures must be approved
by federal or state environmental authorities. In some cases, costs are incurred
to complete remedial cleanup work at the site. In addition at certain of the
Company's other operating sites, remedial cleanup work is required as part of
the RCRA Corrective Action Program or other state and federal programs. As shown
in the Company's Consolidated Balance Sheet and more fully described in Note 6
of the Notes to Consolidated Financial Statements, incorporated herein by
reference, the Company has recorded liabilities of $183.1 million as of August
31, 1997, for remedial cleanup work, Superfund site liability, closure
activities and certain other environmental expenses related to its operating and
previously closed sites.

         With respect to various operating facilities, the Company is required
to provide financial assurance with respect to certain statutorily required
closure and post-closure obligations totaling $450 million at August 31, 1997.
Historically, Laidlaw provided certain of these financial assurances in the form
of parental guaranties. As a result of the Acquisition, the Company will be
obligated to provide most of these financial assurances. The Company intends to
provide the required financial assurance through a combination of letters of
credit and insurance policies, as allowed by the applicable regulatory
authorities.


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<PAGE>   8



                                    EMPLOYEES

         As of August 31, 1997, 4,500 employees provided the Company's hazardous
waste services, of whom 1,500 were executive, supervisory, clerical and sales
personnel. Approximately 12% of the Company's employees were represented by
various collective bargaining groups. Management believes that its relations
with its employees are excellent.


                      EXECUTIVE OFFICERS OF THE REGISTRANT

         The following sets forth certain information with respect to the
executive officers and significant employees of the Company:

<TABLE>
<CAPTION>
           Name                          Age     Position Held
          --------------------------- ---------- ----------------------------------------------------------

<S>                                      <C>     <C>                                     
          Kenneth W. Winger              59      President and Chief Executive Officer
          Michael J. Bragagnolo          51      Executive Vice President and Chief Operating Officer
          Paul R. Humphreys              38      Senior Vice President, Finance and Chief Financial Officer
          Henry H. Taylor                53      Vice President, General Counsel and Secretary
</TABLE>

         Kenneth W. Winger became President and Chief Executive Officer on May
15, 1997 in connection with the Acquisition. Mr. Winger served as President and
Chief Operating Officer of Old LESI from July 1995 until May 1997. He served as
Executive Vice President for Business Development of Laidlaw Waste Systems,
Ltd., a former subsidiary of Laidlaw, from January 1995 until July 1995. Prior
to that, Mr. Winger served as Senior Vice President for Corporate Development
with Laidlaw from May 1991.

         Michael J. Bragagnolo became Executive Vice President and Chief
Operating Officer on May 15, 1997 in connection with the Acquisition. He joined
Old LESI in January of 1997 as the Executive Vice President after serving as
Executive Vice President of U.S. Operations for Laidlaw Waste Systems, Ltd.
since 1992.

         Paul R. Humphreys became Senior Vice President, Finance and Chief
Financial Officer on May 15, 1997 in connection with the Acquisition. He joined
Old LESI in January 1995 as Vice President of Finance. He previously served as
Manager of Finance for Laidlaw for more than five years.

         Henry H. Taylor became Vice President, General Counsel and Secretary on
May 15, 1997 in connection with the Acquisition. Prior to the Acquisition, he
had served as Vice President of Legal and Regulatory Affairs and Secretary of
Old LESI since September 1995. Mr. Taylor joined Old LESI in May 1990 as Vice
President of Legal Affairs.


ITEM 2. PROPERTIES.

         The Company operates in 32 states, seven Canadian provinces and Puerto
Rico. The Company provides hazardous waste services from 53 service centers and
satellite offices, operates 12 landfills, nine incinerators, eight
transportation centers and 24 other facilities. All facilities are owned except
two service centers, three transportation centers and seven other facilities. To
provide these services, the Company utilizes approximately 1,000 trucks and
tractors, 700 other vehicles, and 1,700 trailers.


ITEM 3. LEGAL PROCEEDINGS.

         The business of the Company's hazardous and industrial waste services
is continuously regulated by federal, state, provincial and local provisions
that have been enacted or adopted, regulating the discharge of materials into
the environment or primarily for the purpose of protecting the environment. The
nature of the Company's businesses results in its frequently becoming a party to
judicial or administrative proceedings involving all levels of governmental
authorities and other interested parties. The issues that are involved generally
relate to applications for permits and licenses by the Company and their
conformity with legal requirements and alleged technical violations of existing
permits and licenses. The Company does not believe that these issues will be
material to the Company's operations or financial condition. At August 31, 1997,
subsidiaries of the Company were involved in three proceedings of the latter




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<PAGE>   9

type relating primarily to activities at waste treatment, storage and disposal
facilities where the Company believes sanctions involved in each instance may
exceed $100,000.

         In the United States, CERCLA imposes financial liability on persons who
are responsible for the release of hazardous substances into the environment.
Present and past owners and operators of sites which release hazardous
substances, as well as generators and transporters of the waste material, are
jointly and severally liable for remediation costs and environmental damage. At
August 31, 1997, the Company had been notified that it was a potentially 
responsible party in connection with 22 locations in its hazardous waste
management and other businesses. The Company continually reviews its status with
respect to each location and the extent of its alleged contribution to the
volume of waste at the location, the available evidence connecting the Company
to that location and the numbers and financial soundness of other potentially
responsible parties at the location. Based upon presently available information,
the Company does not believe that potential liabilities arising from its
involvement with these locations will be material to the Company's operations or
financial condition.

         VILLE MERCIER FACILITY. On May 10, 1991, representatives of the
Ministry of the Environment of the Province of Quebec conducted a search on
property of a subsidiary of the Company in Ville Mercier pursuant to a search
warrant issued on the basis of allegations that the subsidiary, prior to its
acquisition, had during the years 1973, 1974 and 1975, illegally buried between
500 and 600 barrels of industrial waste in the ground on the site. As a result
of that search and the finding of barrels of industrial waste, the subsidiary
immediately undertook an investigation and submitted a restoration plan to the
Ministry of the Environment and in fact, commenced the restoration activity. On
May 24, 1991, the Minister of the Environment issued an order under the
provisions of the Environment Quality Act, ordering the subsidiary to collect
all the contaminants dumped, emitted, issued or discharged into the environment.
This order was issued without notice to the subsidiary at a time when the
subsidiary was already carrying out its restoration plan. The subsidiary has
filed a motion in the Superior Court in the Province of Quebec and the District
of Montreal seeking an order to, among other things, cancel and annul the order
on the basis, that the burial of the barrels between 1973 and 1975 did not
constitute an actual and current discharge, emission or deposit of contaminants
into the environment, justifying the 1991 order under the law and that the order
did not identify the contaminants that the subsidiary was required to remove,
their location, or a time frame in which this should be accomplished. Management
believes that the restoration plan submitted by the subsidiary as amended after
consultation with the Ministry of the Environment has been implemented and that
any contamination resulting from the barrels of industrial waste has been
remediated.

         By letter dated June 19, 1992, and unrelated to the barrels of
industrial waste referred to above, the Quebec Ministry of the Environment
requested the subsidiary to advise the Ministry, within 30 days of receipt of
the request, of its intentions concerning the carrying out of certain
characterization studies of soil and water and restoration work with respect to
certain areas of the Ville Mercier property. In 1968, the Quebec government
issued two permits to an unrelated company to dump organic liquids into lagoons
on the Ville Mercier property. By 1971, groundwater contamination had been
identified. In 1972, the Quebec government provided an alternate water supply to
Ville Mercier. In the same year, the permit authorizing the dumping of liquids
was terminated and a permit to operate an organic liquids incinerator on the
property was granted to an entity which was indirectly acquired by the Company
in 1989. In 1973, the Quebec government contracted with the incinerator operator
to incinerate the pumpable liquids in the lagoons. In 1980, the incinerator
operator removed, solidified and disposed of the non-pumpable material from the
lagoons in a secure cell and completed the closure of the lagoons at its own
expense. In 1983, the Quebec government constructed, and continues to operate, a
groundwater pumping and treatment facility near the lagoons. The Company
believes that its subsidiary is not the party responsible for the lagoon and
groundwater contamination. By letter dated July 17, 1992, the subsidiary
responded by first denying any responsibility for the decontamination and
restoration of its site and secondly by proposing that the Quebec Ministry of
the Environment and the subsidiary form a working group to find the most
appropriate technical solution to the contamination problem. On November 16 and
25, 1992, the Minister of the Environment, pursuant to the provisions of the
Environment Quality Act, served the subsidiary with two Notices alleging that
the subsidiary was responsible for the presence of contaminants on its property
and that of its neighbor and ordering the subsidiary to take all the necessary
measures to excavate, eliminate or treat all of the contaminated soils and
residues located within the areas defined in the Notices and to recover and
treat all of the contaminated waters resulting from the aforementioned measures.
The Notices further provided that failing the receipt by the Department of
Environment, within ten days of the date of service of the Notices, of an
undertaking by the subsidiary to carry out the aforementioned measures, the
Minister of the Environment would proceed to do the work and would claim from
the subsidiary the direct and indirect costs relating to such work. By letter
dated November 25, 1992, the subsidiary responded by reiterating its position
that it had no responsibility for the contamination associated with the
discharges of wastes into the former Mercier Lagoons between 1968 and 1972 and
proposing to submit the 



                                       9
<PAGE>   10

question of responsibility to the Courts for determination as expeditiously as
possible through the cooperation of the parties' respective attorneys.
Concurrently, the subsidiary undertook to prepare and submit to the Department
of the Environment a technical plan to address the contamination on the site
identified in the notices. This plan was developed with the assistance of highly
qualified experts from Quebec and elsewhere in North America drawing upon all
available information and was submitted to the Minister of the Environment. By
letter dated December 7, 1992, the subsidiary submitted to the Minister of the
Environment a document entitled "Detailed Scope of Work for the Groundwater
Contamination Panel Ville Mercier, Quebec." This proposal by the subsidiary was
refused by the Minister of the Environment by letter dated December 22, 1992 on
the grounds that it did not meet the terms of the above mentioned Notices issued
against the subsidiary. The Minister published a request for tenders for the
preparation of plans and specifications with respect to the excavation and
storage of the contaminated soils. The Minister also retained six independent
experts to review the subsidiary's technical plan. This panel of experts
subsequently submitted to the Minister of the Environment its recommended
methodology to address the contamination on the site.

         The Minister of the Environment convened a public hearing which
reviewed the report submitted to the Minister by the experts he retained and
recommended to the Minister what remedial plan should be instituted to address
the contamination on the site.

         The subsidiary filed legal proceedings seeking a court determination of
the liability associated with the contamination of the former Mercier lagoons.
The subsidiary asserted that it has no responsibility for the contamination on
the site. The Minister claimed that the subsidiary is responsible for the
contamination and should reimburse the Province of Quebec for costs incurred to
the present in the amount of $17.8 million Canadian and should be responsible
for future remediation costs.

         Pursuant to the Stock Purchase Agreement (as described in Part I Item 1
of this report), Laidlaw and Laidlaw Transportation, Inc. agreed to indemnify
and hold harmless the Company and its subsidiaries for any damages resulting
from the remediation of contaminated soils and water arising from the former
lagoon sites and operation of the incinerator at Mercier, Quebec but only to the
extent that the aggregate cash expenditure with respect to such damages exceeds
in the aggregate (i) $1 million during such year and (ii) since the Acquisition
(as described in Part I, Item 1, to this report) an amount equal to the product
of $1 million times the number of years that have elapsed since the Acquisition;
however, there shall be no indemnification for any cash expenditures incurred
more than six years after the Acquisition.

         LAIDLAW ENVIRONMENTAL SERVICES OF SOUTH CAROLINA, INC. FINANCIAL
ASSURANCE. A subsidiary of the Company, Laidlaw Environmental Services of South
Carolina, Inc. ("LESSC"), owns and operates a hazardous waste landfill near the
Town of Pinewood in Sumter County, South Carolina. South Carolina law requires
that hazardous waste facilities provide evidence of financial assurance for
potential environmental cleanup and restoration in form and amount to be
determined by the South Carolina Department of Health and Environmental Control
("DHEC").

         In its order dated May 19, 1994, the Board of DHEC (the "Board")
decided that over a ten year period LESSC must establish a cash funded trust in
the amount of $133 million adjusted for inflation as financial assurance for
potential environmental cleanup and restoration. In August 1994, LESSC paid
approximately $14 million cash into the trust fund as a first installment. The
cash funded trust now stands at approximately $17 million. LESSC appealed to the
South Carolina Circuit Court contesting the legality of the Board's
determination.

         In June 1995, DHEC promulgated, and the South Carolina legislature
approved, regulations governing financial assurance for environmental cleanup
and restoration giving owner/operators of hazardous waste facilities the right
to choose from among six options for providing financial assurance. The options
include insurance, a bond, a letter of credit, a cash trust fund and a corporate
guaranty with a financial test.

         In June 1995 under authority of the new regulations, LESSC submitted
financial assurance for potential environmental cleanup and restoration composed
of a combination of the existing State Permitted Sites Fund (this is a state of
South Carolina fund created by statute and funded by hazardous waste disposal
taxes) in the amount of approximately $8 million and the balance of a total
package of $135 million by way of a corporate guaranty by Laidlaw in the amount
of approximately $127 million. LESSC also left in place the existing cash trust
fund in the amount of approximately $17 million. DHEC accepted LESSC's financial
submittal. On September 15, 1995, DHEC issued a declaratory ruling finding the
new regulations applicable to financial assurance requirements for LESSC. A
group of parties opposed to the ruling appealed the declaratory ruling to the
South Carolina Circuit Court. The opposing parties 



                                       10
<PAGE>   11

include Citizens Asking for a Safe Environment, Energy Research Foundation,
County of Sumter, Sierra Club, County of Clarendon, The Sumter County
Legislative Delegation, the South Carolina Department of Natural Resources and
the South Carolina Public Service Authority. In June 1996, LESSC submitted and
DHEC accepted a similar financial assurance package for the state fiscal year
ended June 30, 1997. In June 1997, LESSC submitted a financial assurance package
consisting of the State Permitted Sites Fund (approximately $9 million), the
cash trust fund in the amount of approximately $17 million and the balance of a
total package of approximately $135 million in insurance coverage. This
submittal is pending acceptance by DHEC.

         LESSC's appeal of the May 19, 1994 DHEC order and the opposing parties'
appeal of the September 15, 1995, DHEC declaratory ruling were consolidated in
the South Carolina Circuit Court in the case captioned Laidlaw Environmental
Services of South Carolina, Inc. et. al., Petitioners vs. South Carolina
Department of Health and Environmental Control and South Carolina Board of
Health and Environmental Control, Respondents - Energy Research Foundation, et
al., Intervenors, Docket Numbers C/A 94-CP-43-175, 94-CP-43-178, 94-CP-40-1412
and 94-CP-40-1859. A decision was issued by the Circuit Court on August 19, 1997
finding the regulation legally valid and applicable to financial assurance
requirements of the Pinewood landfill. Opposing parties have appealed the
decision to the South Carolina Court of Appeals. A decision adverse to the
Company could result in the reinstatement of the May 19, 1994 DHEC order. The
Company believes that the regulations promulgated in June 1995 are legally valid
and applicable to financial assurance requirements for the Pinewood landfill.

         TAX MATTERS. The consolidated federal income tax returns of Laidlaw
Transportation, Inc. and its U.S. subsidiaries (collectively, "LTI") (which
until May 15, 1997, included certain of the subsidiaries of the Company) for the
fiscal years ended August 31, 1986, 1987 and 1988, have been under audit by the
Internal Revenue Service. In March 1994, LTI received a statutory notice of
deficiency proposing that LTI pay additional taxes relating to disallowed
deductions in those income tax returns. The principal issue involved, relates to
the timing and the deductibility for tax purposes of interest attributable to
loans owning to related foreign persons. LTI has petitioned the United States
Tax Court (captioned as Laidlaw Transportation, Inc. & Subsidiaries et al. vs.
Commissioner of Internal Revenue, Docket Nos. 9361-94 and 9362-94) for a
redetermination of claimed deficiencies of approximately $49.6 million (plus
interest of approximately $80.3 million as of August 31, 1997). In October 1997,
LTI received a statutory notice of deficiency proposing that the subsidiaries
pay additional taxes of approximately $143.5 million (plus interest of
approximately $121.0 million as of August 31, 1997) relating to disallowed
deductions in federal income tax returns for the fiscal years ended August 31,
1989, 1990 and 1991, based on the same issues. LTI intends to vigorously contest
these claimed deficiencies. The Company anticipates that the Internal Revenue
Service will propose adjustments for the same issue in subsequent taxation
years. Pursuant to the Stock Purchase Agreement (as described in Part I, Item 1
to this report), Laidlaw and Laidlaw Transportation, Inc. agreed to be
responsible for any tax liabilities resulting from these matters. The Company 
believes that the ultimate disposition of these issues will not have a 
materially adverse effect upon the Company's consolidated financial position or
results of operations.

ITEM 4. SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS.

         No matters were submitted to the Company's security holders during the
fourth quarter of fiscal 1997.


                                     PART II

ITEM 5. MARKET FOR REGISTRANT'S COMMON EQUITY AND RELATED STOCKHOLDER MATTERS.

         The section entitled "Common Stock and Dividend Information" appearing
in the Company's 1997 Annual Report to Stockholders is incorporated herein by
reference.

ITEM 6. SELECTED FINANCIAL DATA.

         The section entitled "Selected Financial Data" appearing in the
Company's 1997 Annual Report to Stockholders is incorporated herein by
reference.


                                       11
<PAGE>   12

ITEM 7. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS
        OF OPERATIONS.

         The section entitled "Management's Discussion and Analysis of Financial
Condition and Results of Operations" appearing in the Company's 1997 Annual
Report to Stockholders is incorporated herein by reference.


ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA.

         The financial statements and notes thereto set forth in the Company's
1997 Annual Report to Stockholders are incorporated herein by reference, and
indexed under Item 14(a)(1). See also the financial statement schedules
appearing herein, as indexed under Item 14(a)(2).


ITEM 9. CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND
        FINANCIAL DISCLOSURE.

         None.


                                    PART III


ITEM 10. DIRECTORS AND EXECUTIVE OFFICERS OF THE REGISTRANT.

         The section entitled "Executive Officers of the Registrant" in Part I,
Item 1 of this Annual Report on Form 10-K and the section entitled "Section
16(a) Beneficial Ownership Reporting Compliance" and "Proposal 1: Election of
Directors" in the Company's definitive proxy statement to be filed pursuant to
Regulation 14A for the Annual Meeting of Stockholders to be held on November 25,
1997 (the "Proxy Statement"), are incorporated herein by reference.


ITEM 11. EXECUTIVE COMPENSATION.

         The sections entitled "Compensation of Officers and Directors" and
"Compensation Committee Interlocks and Insider Participation" in the Proxy
Statement are incorporated herein by reference.

ITEM 12. SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT.

         The section entitled "Beneficial Ownership" in the Proxy Statement is
incorporated herein by reference.


ITEM 13. CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS.

         The section entitled "Certain Relationships and Related Transactions"
in the Proxy Statement is incorporated herein by reference.


                                       12
<PAGE>   13

                                     PART IV


ITEM 14. EXHIBITS, FINANCIAL STATEMENT SCHEDULES, AND REPORTS ON FORM 8-K.

(a). The following documents are filed as part of this report:

         (1). Financial statements and the notes thereto set forth in the
Company's 1997 Annual Report to Stockholders which are incorporated herein by
reference:

         Report of Independent Accountants to the Stockholders (page 31).

         Consolidated Statements of Income for the three fiscal years ended
         August 31, 1997, 1996 and 1995 (page 16). 

         Consolidated Balance Sheets as of August 31, 1997 and 1996 (page 17). 

         Consolidated Statements of Cash Flows for each of the three fiscal
         years ended August 31, 1997, 1996 and 1995 (page 18).

         Consolidated Statements of Stockholders' Equity for each of the three
         fiscal years ended August 31, 1997, 1996 and 1995 (page 19).
         
         Notes to Consolidated Financial Statements (pages 20 - 30).

         The Company's 1997 Annual Report to Stockholders is not to be deemed
filed as part of this report except for those parts thereof specifically
incorporated by reference herein.

         (2). Financial statement schedules required to be filed by Item 8 of
this form:

         Page 17 -- Schedule II -- Valuation and qualifying accounts.

         Page 18 -- Independent accountant's report on financial statement
                    schedules.

         All other schedules have been omitted since they are inapplicable or
not required, or the information has been included in the financial statements
or the notes thereto.

         (3). Exhibits:

         (3)(a) Restated Certificate of Incorporation of the Company dated May
         13, 1997, and Amendment to Certificate of Incorporation dated May 15,
         1997, filed as Exhibit 3(a) to the Registrant's Form 10-Q for the
         Quarter ended May 31, 1997, and incorporated herein by reference.

         (3)(a)(i) Certificate of Correction Filed to Correct a Certain Error in
         the Restated and Amended Certificate of Incorporation of the Company
         dated October 15, 1997.

         (3)(b) Bylaws of the Company filed as Exhibit 4(ii) to the
         Registrant's Current Report on Form 8-K dated July 29, 1997, and
         incorporated herein by reference.

         (4)(a) Rights Agreement dated as of June 14, 1989 between the Company
         and First Chicago Trust Company as successor to Registrar and 
         Transfer Company, as Rights Agent filed as an Exhibit to the 
         Registrant's Form 8-K filed on June 13, 1995 and incorporated herein 
         by reference.

         (4)(b) Amendment No. 1 dated as of March 31, 1995 to the Rights 
         Agreement between the Company and First Chicago Trust Company as 
         successor to Registrar and Transfer Company, as Rights Agent filed as 
         an Exhibit to the Registrant's Form 8-K filed on June 13, 1995 and 
         incorporated herein by reference.

         (4)(c) Credit Agreement among Laidlaw Chem-Waste, Inc., Laidlaw
         Environmental Services (Canada) Ltd., Toronto Dominion (Texas) Inc.,
         The Toronto-Dominion Bank, TD Securities (USA) Inc., the Bank of Nova
         Scotia, NationsBank, N.A. and The First National Bank of Chicago and
         NationsBank, N.A. as Syndication Agent dated as of May 9, 1997, filed
         as Exhibit 4(c) to the Registrant's Form 10-Q for the Quarter ended
         March 31, 1997, and incorporated herein by reference.

         (4)(d) $350,000,000 5% Subordinated Convertible Pay-In-Kind Debenture
         due 2009 issued by Registrant on May 15, 1997 to Laidlaw Inc. the form
         of which was included as an appendix to the Registrant's Definitive
         Proxy Statement on Form DEF 14A, filed on May 1, 1997 and incorporated
         herein by reference.

         (4)(e) Registration Rights Agreement dated May 15, 1997 between
         Registrant, Laidlaw Transportation, Inc. and Laidlaw Inc. included as
         an appendix to the Registrant's Definitive Proxy Statement on Form DEF
         14A, the form of which was filed on May 1, 1997 and incorporated herein
         by reference.


                                       13
<PAGE>   14

         (4)(f) Indenture dated as of May 1, 1993 between the Industrial
         Development Board of the Metropolitan Government of Nashville and
         Davidson County (Tennessee) and NationsBank of Tennessee, N.A., filed
         as Exhibit 4(f) to the Registrant's Form 10-Q for the Quarter ended May
         31, 1997, and incorporated herein by reference.

         (4)(g) Indenture of Trust dated as of February 1, 1995 between Carbon
         County, Utah and West One Bank, Utah, now known as U.S. Bank, as
         Trustee, filed as Exhibit 4(g) to the Registrant's Form 10-Q for the
         Quarter ended May 31, 1997, and incorporated herein by reference.

         (4)(h) Indenture of Trust dated as of August, 1995 between Tooele
         County, Utah and West One Bank, Utah, now known as U.S. Bank, as
         Trustee, filed as Exhibit 4(h) to the Registrant's Form 10-Q for the
         Quarter ended May 31, 1997, and incorporated herein by reference.

         (4)(i) Indenture of Trust dated as of July 1, 1997 between Carbon
         County, Utah and U.S. Bank, a national banking association, as Trustee,
         filed as Exhibit 4(i) to the Registrant's Form 10-Q for the Quarter
         ended May 31, 1997, and incorporated herein by reference.

         (4)(j) Indenture of Trust dated as of July 1, 1997 between Tooele
         County, Utah and U.S. Bank, a national banking association, as Trustee,
         filed as Exhibit 4(j) to the Registrant's Form 10-Q for the Quarter
         ended May 31, 1997, and incorporated herein by reference.

         (4)(k) Indenture of Trust dated as of July 1, 1997 between California
         Pollution Control Financing Authority and U.S. Bank, a national banking
         association, as Trustee, filed as Exhibit 4(k) to the Registrant's Form
         10-Q for the Quarter ended May 31,1997, and incorporated herein by
         reference.

         (4)(l) Stock Purchase Agreement between Westinghouse Electric
         Corporation (Seller) and Rollins Environmental Services, Inc. (Buyer)
         for National Electric, Inc. dated March 7, 1995, filed as an Exhibit to
         the Registrant's Form 8-K filed on June 13, 1995, and incorporated
         herein by reference.

         (4)(m) Second Amendment to Stock Purchase Agreement (as referenced in
         Exhibit (4)(l) above, dated May 15, 1997, among Westinghouse Electric
         Corporation, Rollins Environmental Services, Inc. and Laidlaw Inc.,
         filed as Exhibit 4(m) to the Registrant's Form 10-Q for the Quarter
         ended May 31, 1997, and incorporated herein by reference.

         (4)(n) Promissory Note dated May 15, 1997 for $60,000,000 from Laidlaw
         Environmental Services, Inc. to Westinghouse Electric Corporation,
         filed as Exhibit 4(n) to the Registrant's Form 10-Q for the Quarter
         ended May 31, 1997, and incorporated herein by reference.

         (4)(o) Guaranty Agreement dated May 15, 1997 by Laidlaw Inc. to
         Westinghouse Electric Corporation guaranteeing Promissory Note dated
         May 15, 1997 (as referenced in Exhibit (4)(n)) from Laidlaw
         Environmental Services, Inc. to Westinghouse Electric Corporation,
         filed as Exhibit 4(o) to the Registrant's Form 10-Q for the Quarter
         ended May 31, 1997, and incorporated herein by reference.

         (10)(a) Rollins Environmental Services, Inc. 1982 Incentive Stock
         Option Plan, filed with Amendment No. 1 to the Company's Registration
         Statement No. 2-84139 on Form S-1 dated June 24, 1983 and incorporated
         herein by reference.

         (10)(b) Rollins Environmental Services, Inc. 1993 Stock Option Plan,
         filed with the Company's Proxy Statement for the Annual Meeting of
         Stockholders held January 28, 1994 and incorporated herein by
         reference.

         (10)(c) Stock Purchase Agreement dated February 6, 1997, among the
         Registrant, Laidlaw Inc., and Laidlaw Transportation, Inc. included as
         an appendix to the Registrant's Definitive Proxy Statement on Form DEF
         14A, filed on May 1, 1997, and incorporated herein by reference.

         (10)(e) Management Incentive Plan for fiscal year 1996, filed as
         Exhibit 10(e) to the Registrant's Form 10-Q for the Quarter ended May
         31, 1997, and incorporated herein by reference.

         (12) Computation of ratio of earnings to fixed charges


                                       14
<PAGE>   15

         (13) The Company's 1997 Annual Report to Stockholders, certain portions
         of which have been incorporated herein.

         (21) Subsidiaries of the Registrant

         (23) Consent of Independent Accountants

         (27) Financial data schedule


(b). Reports on Form 8-K

         The Company filed a Current Report on Form 8-K on June 11, 1997, which
contained Item 4 related to the change in the Registrant's certifying
accountant, and Item 5 related to the appointment of two additional directors.

         The Company filed an Amended Current Report on Form 8-K/A, on July 28,
1997, amending the Form 8-K dated May 30, 1997, which contained Item 7 related
to the financial statements of businesses acquired and pro forma financial
information.

         The Company filed a Current Report on Form 8-K on July 29, 1997, which
contained Item 5 related to the amendment of its By-laws and Item 7 related to
the exhibits.



                                       15
<PAGE>   16

                                   SIGNATURES

         Pursuant to the requirements of Section 13 or 15(d) of the Securities
Exchange Act of 1934, the Registrant has duly caused this report to be signed on
its behalf by the undersigned, thereunto duly authorized.

DATE: October 14, 1997               LAIDLAW ENVIRONMENTAL SERVICES, INC.
      ----------------               ------------------------------------
                                                 (Registrant)

                                               /s/ K. W. Winger
                                     ------------------------------------
                                               Kenneth W. Winger
                                     President and Chief Executive Officer


         Pursuant to the requirements of the Securities Exchange Act of 1934,
this report has been signed below by the following persons on behalf of the
Registrant and in the capacities and on the dates indicated.

Signature                          Title                              Date
- ---------                          -----                              ----

/s/ J. R. Bullock           Chairman of the Board               October 14, 1997
- --------------------------  and Director
James R. Bullock            

/s/ K. W. Winger            President, Chief Executive Officer  October 14, 1997
- --------------------------  and Director
Kenneth W. Winger           

/s/ Paul R. Humphreys       Senior Vice President, Finance      October 14, 1997
- --------------------------  and Chief Financial Officer
Paul R. Humphreys           

/s/ J. R. Grainger          Director                            October 14, 1997
- --------------------------
John R. Grainger

/s/ L. W. Haworth           Director                            October 14, 1997
- --------------------------
Leslie W. Haworth

/s/ John W. Rollins, Sr.    Director                            October 14, 1997
- --------------------------
John W. Rollins, Sr.

/s/ John W. Rollins, Jr.    Director                            October 14, 1997
- --------------------------
John W. Rollins, Jr.

/s/ David E. Thomas, Jr.    Director                            October 14, 1997
- --------------------------
David E. Thomas, Jr.

/s/ Henry B. Tippie         Director                            October 14, 1997
- --------------------------
Henry B. Tippie

                            Director
- --------------------------
James L. Wareham

                            Director

- --------------------------
Grover C. Wrenn


                                       16

<PAGE>   17

ITEM 14 (2.)

                      LAIDLAW ENVIRONMENTAL SERVICES, INC.
                Schedule II - Valuation and Qualifying Accounts
                                ($ in Thousands)

<TABLE>
<CAPTION>
                                                         Additions
                                      Balance at   --------------------
                                      Beginning    Charged to                           Balance at
Description                           of Period     Expense    Other(1) Deductions(1) End of Period
- ---------------------------------------------------------------------------------------------------
<S>                                    <C>          <C>         <C>         <C>         <C>
Year ended August 31

1997
Allowance for doubtful accounts        $ 4,985      $1,633      $2,171      $1,553      $ 7,236
Amortization of intangible assets       12,962       2,216           0       3,509       11,669

1996
Allowance for doubtful accounts        $ 5,705      $1,306      $    0     $ 2,026      $ 4,985
Amortization of intangible assets       12,079       2,054           0       1,171       12,962

1995
Allowance for doubtful accounts        $ 1,719      $  214      $6,037     $ 2,265      $ 5,705
Amortization of intangible assets        9,854       2,225           0           0       12,079
</TABLE>

(1)    Represents balances of acquired and disposed business and holding gain
       (loss) on Canadian balances translated into U.S. dollars at the exchange
       rate prevailing at the end of the year.



                                       17


<PAGE>   1

                                Exhibit 3(a)(i)


                            CERTIFICATE OF CORRECTION
                       FILED TO CORRECT A CERTAIN ERROR IN
              THE RESTATED AND AMENDED CERTIFICATE OF INCORPORATION
                     OF LAIDLAW ENVIRONMENTAL SERVICES, INC.
                  FILED IN THE OFFICE OF THE SECRETARY OF STATE
                           OF DELAWARE ON MAY 13, 1997

Laidlaw Environmental Services, Inc., a corporation organized and existing under
and by virtue of the General Corporation Law of the State of Delaware,

         DOES HEREBY CERTIFY:

          1.   The name of the corporation is Laidlaw Environmental Services,
                                              Inc.
                                              ----------------------------------

          2.   That a Restated and Amended Certificate of Incorporation
                      -------------------------------------------------
                           (Title of Certificate Being Corrected)

was filed by the Secretary of State of Delaware on May 13, 1997 and that said
Certificate requires correction as permitted by Section 103 of the General
Corporation Law of the State of Delaware.

          3. The inaccuracy or defect of said Certificate to be corrected is as
     follows:

           There were several typographical errors in Article Seventh
                     of the Certificate as originally filed.
- --------------------------------------------------------------------------------
            (Make a general statement as to the inaccuracy or defect)

          4. Article SEVENTH of the Certificate is corrected to read as follows:
                     -------

                             SEE ATTACHED EXHIBIT A.



<PAGE>   2



     IN WITNESS WHEREOF, said Laidlaw Environmental Services, Inc. has caused
this Certificate to be signed by Henry H. Taylor, its Vice President, General
Counsel and Secretary, this 15th day of October, 1997.

                                   Laidlaw Environmental Services, Inc.

                                   By:  /s/ Henry H. Taylor
                                        --------------------------------------
                                        Henry H. Taylor, Vice President,
                                        General Counsel and Secretary


<PAGE>   3


                                    EXHIBIT A

     "SEVENTH: The property and business of this corporation shall be managed by
a Board of up to ten (10) directors. The directors shall be divided into three
classes. The first class (Class I) shall consist of four (4) directors and the
term of office of such class shall expire at the next Annual Meeting of
Stockholders. The second class (Class II) shall consist of three (3) directors
and the term of office of such class shall expire at the Annual Meeting of
Stockholders one year thereafter. The third class (Class III) shall consist of
three (3) directors and the term of office of such class shall expire at the
Annual Meeting of Stockholders two years thereafter. At each annual election,
commencing at the next Annual Meeting of Stockholders, the successors of the
class of directors whose term expires at that time shall be elected to hold
office for the term of three years to succeed those whose term expires, so that
the term of office of one class of directors shall expire in each year. Each
director shall hold office for the term for which he is elected or appointed or
until his successor shall be elected and qualified, or until his death or until
he shall resign. Directors need not be stockholders nor residents of the State
of Delaware.

     Notwithstanding any of the provisions of this Certificate of Incorporation
or the by-laws of the Corporation (and notwithstanding the fact that some lesser
percentage may be specified by law, this Certificate of Incorporation or the
by-laws of the Corporation), any director or the entire Board of Directors of
the Corporation may be removed at any time, but only for cause, and only at a
meeting of the stockholders called for that purpose by the affirmative vote of
the holders of 75% or more of the shares of the Corporation entitled to vote at
an election of directors.

     Nominations for the election of directors may be made by the Board of
Directors or by any stockholder entitled to vote for the election of directors.
Such nominations shall be made by notice in writing, delivered or mailed by
first class United States mail, postage prepaid, to the secretary of the
Corporation not less than 14 days nor more than 50 days prior to any meeting of
the stockholders called for the election of directors; provided, however, that
if less than 21 days' notice of the meeting is given to stockholders, such
written notice shall be delivered or mailed, as prescribed, to the Secretary of
the Corporation not later than the close of business on the seventh day
following the day on which notice of the meeting was mailed to stockholders.
Notice of nominations which are proposed by the Board of Directors shall be
given by the Chairman on behalf of the Board.

     Each such notice shall set forth (i) the name, age, business address and,
if known, residence address of each nominee proposed in such notice, (ii) the
principal occupation or employment of each such nominee and (iii) the number of
shares of stock of the Corporation which are beneficially owned by each such
nominee.

     The Chairman of the meeting may, if the facts warrant, determine and
declare to the meeting that a nomination was not made in accordance with the
foregoing procedure, and, if he should so determine, he shall so declare to the
meeting and the defective nomination shall be disregarded."



<PAGE>   1



                      LAIDLAW ENVIRONMENTAL SERVICES, INC.
                 Schedule of Ratio of Earnings to Fixed Charges
                                   Exhibit 12
                                ($ in Thousands)

<TABLE>
<CAPTION>
For the Fiscal Years Ended August 31,                             1997          1996         1995         1994         1993
- -----------------------------------------------------------------------------------------------------------------------------
<S>                                                            <C>             <C>          <C>          <C>          <C>    
Income (loss) from continuing operations
       before income tax                                       ($306,122)      $11,860      $21,684      $25,731      $17,066

Add back:
       Fixed charges (excluding interest capitalized)             56,306        58,817       52,942       42,577       37,478
                                                             ----------------------------------------------------------------

             Adjusted income                                    (249,816)       70,677       74,626       68,308       54,544
                                                             ----------------------------------------------------------------


Ratio of earnings to fixed charges                                 (4.44)         1.20         1.41         1.60         1.46
                                                             ================================================================

Fixed charges:
       Interest expense (excluding interest capitalized)       $  44,273       $46,850      $41,142      $34,000      $30,679
       Rental expense (representative of interest factor)         12,033        11,967       11,800        8,577        6,799
                                                             ----------------------------------------------------------------

             Total fixed charges                               $  56,306       $58,817      $52,942      $42,577      $37,478
                                                             ================================================================
</TABLE>


                                       19


<PAGE>   1


                        REPORT OF INDEPENDENT ACCOUNTANTS



To the Stockholders and Directors of
    Laidlaw Environmental Services, Inc.

Our report on the consolidated financial statements of Laidlaw Environmental
Services, Inc. has been incorporated by reference in this form 10-K from page 31
of the 1997 Annual Report to Stockholders of Laidlaw Environmental Services,
Inc. In connection with our audits of such financial statements, we have also
audited the related financial statement schedule listed in the exhibit index on
page 13 of this Form 10-K.

In our opinion, the financial statement schedule referred to above, when
considered in relation to the basic financial statements taken as a whole,
presents fairly, in all material respects, the information required to be
included therein.


                                           COOPERS & LYBRAND L.L.P.


Charlotte, North Carolina
October 7, 1997




                                       18

<PAGE>   2
10

                                                                         LAIDLAW
                                                          ENVIRONMENTAL SERVICES

Selected Financial Data

<TABLE>
<CAPTION>
($ in thousands, except per share amounts)
Year Ended August 31                   1997             1996          1995           1994           1993
- -----------------------------------------------------------------------------------------------------------
<S>                                <C>             <C>            <C>            <C>            <C>        
Revenues                           $   678,619     $   652,973    $   599,241    $   517,804    $   511,554

Operating income before
   restructuring                   $    66,983     $    57,319    $    59,859    $    45,548    $    52,400
   Applicable margin                       9.9%            8.8%          10.0%           8.8%          10.2%

Income (loss) from continuing
   operations                      $  (183,452)    $     6,714    $    16,765    $    22,531    $    11,654

Net income (loss) per share from
   continuing operations           $    (1.329)    $     0.056    $     0.140    $     0.188    $     0.097

Dividends per common share         $        --     $        --    $        --    $        --    $        --

Total assets                       $ 1,610,878     $ 1,491,294    $ 1,367,411    $   974,053    $   947,976

Long-term debt                     $   540,096     $    55,838    $    64,256    $    18,454    $    24,253

Weighted average common
   and common stock equivalents
   outstanding (000's)                 138,033         120,000        120,000        120,000        120,000
</TABLE>





<PAGE>   3




11

                                                                         LAIDLAW
                                                          ENVIRONMENTAL SERVICES



Management's Discussion and Analysis of Financial Condition and Results of
Operations

The following discussion and analysis of the Company's operations, financial
performance and results for each of the three fiscal years in the period ended
August 31, 1997, should be read in conjunction with the Company's consolidated
financial statements and related notes thereto included elsewhere herein. As a
result of the reverse acquisition of Rollins Environmental Services, Inc. (the
"Acquisition"), the historical financial information included herein is that of
the hazardous and industrial waste operations ("Old LESI" or the "Accounting
Acquirer") of Laidlaw Inc. ("Laidlaw"). The results of operations of Rollins
have been included from the date of acquisition, May 15, 1997.

The following discussion and analysis of the Company's operations, financial
performance and results includes statements that are considered forward-looking
based on the Company's expectations and, as such, these statements are subject
to uncertainty and risk. See "Factors That May Influence Future Results" below.

RESULTS OF OPERATIONS:
Fiscal Year Ended August 31, 1997 compared with Fiscal Year Ended August 31,
1996

<TABLE>
<CAPTION>
Operating results, before the restructuring charge, are as follows ($ in
millions):
Year Ended August 31                                   1997               1996
- -----------------------------------------------------------------------------------
<S>                                             <C>        <C>    <C>         <C>   
Revenue                                         $  678.6   100.0% $  653.0    100.0%
Operating expense                                  485.1    71.5%    473.6     72.5%
Depreciation and amortization                       53.5     7.9%     48.3      7.4%
Selling, general and administrative                 73.1    10.7%     73.8     11.3%
                                                ------------------------------------
Operating income                                $   66.9     9.9%  $  57.3      8.8%
                                                ====================================

Revenues
Components of Revenue ($ in millions):
Year Ended August 31                                    1997                1996
- -----------------------------------------------------------------------------------
Service Center                                  $  301.6     38%    $  294.8    39%
Landfill                                           177.1     22%       190.3    25%
Incinerator                                         89.8     11%        31.4     4%
Transportation                                      95.4     12%        89.9    12%
Specialty Services                                 140.4     17%       148.0    20%
                                                -----------------------------------
                                                   804.3    100%       754.4   100%
Less: Intercompany eliminations                   (125.7)             (101.4)
                                                -----------------------------------
   Total revenue                                $  678.6            $  653.0
                                                ===================================
</TABLE>

Revenues increased by $25.6 million, or 3.9%, during the fiscal year ended
August 31, 1997, compared to the fiscal year ended August 31, 1996, supported
primarily by increases in the incinerator and service center lines of business.
Revenue for incinerators increased 186.0% from fiscal year 1996 reflecting the
inclusion of the acquired Rollins' incineration facilities effective May 15,
1997. Service center revenue increased 2.3% over the prior year, also reflecting
the Acquisition. Landfill revenue decreased 6.9% primarily due to non-recurring
event projects performed in the prior year period by the Company's industrial
landfill in Utah, the most significant of which included management and disposal
activities related to dredging in the New York/New Jersey harbor area.
Transportation revenue increased 6.1%, while specialty services decreased 5.1%
from the prior year. Processing of intercompany streams increased 24.0% over the
prior year, reflecting the increased utilization of the Company's acquired
Rollins' incineration facilities. As a result, the Company increased the
internalization of waste disposal activities to 68.0% in fiscal 1997, up from
50.0% in fiscal 1995. Management anticipates increasing the internalization of
waste disposal activities to 75.0% with a full 12 month's contribution from the
Acquisition.

Management's estimates of the components of changes in the Company's
consolidated revenue are as follows:
<TABLE>
<CAPTION>
                                                 Percentage Increase (Decrease)
- -------------------------------------------------------------------------------
<S>                                                         <C>  
Expansion of customer base by acquisition                    6.7%
Other, primarily through volume and price changes           (2.7)%
Foreign exchange rate changes                               (0.1)%
                                                            ----
   Total                                                     3.9%
                                                            ====
</TABLE>

The comparative increase in revenue for the year ended August 31, 1997, was
primarily due to the inclusion of acquired operations, the majority of which
related to the Acquisition. The increase was partially offset by lower pricing
and volumes received in the early portion of fiscal 1997. Lower volumes were
primarily related to dredging activities performed throughout the prior year by
the Company's landfill in Utah. Revenue also decreased due to pricing and volume
reductions at the Company's government services locations, the closure of a
wastewater facility in May 1997 and the Company's planned downsizing of its Gulf
Coast remedial

<PAGE>   4



12

                                                                         LAIDLAW
                                                          ENVIRONMENTAL SERVICES



Management's Discussion and Analysis of Financial Condition and Results of
Operations


operations. The negative effect of these price and volume reductions were
diminished in the aggregate due to improvements, primarily in the fourth quarter
of the year, related to increased activity at certain of the Company's landfills
and at its PCB management operations. Additional harbor dredging project work
begun in the fourth quarter was also a positive factor.

The Company continues to focus on developing its sales force in order to expand
the customer base in the core markets in which it operates. While the Company
has taken action to protect its market share in existing regions and has
established new business relationships, significant price competition has
impacted revenue growth. The Company continues to take pricing actions in
response to industry conditions as it attempts to maintain a competitive mix of
price, performance and customer support services while managing profitability
and growth. The Company strives to mitigate the effects of price reductions by
reducing operating costs.

Operating Expenses
Operating expenses for the year ended August 31, 1997 increased $11.5 million,
or 2.4%, from the year ended August 31, 1996. The increase was mainly due to the
Acquisition. Operating expense, as a percentage of revenue, decreased to 71.5%
from 72.5% in the prior year, due to economies of scale gained through the
Acquisition and ongoing cost reduction initiatives.

The Company believes that its ability to manage operating costs is an important
factor in its ability to remain price competitive. During fiscal 1997, the
Company continued its process of consolidating common functions to reduce
redundant costs and improve the Company's ability to deliver its services.

Depreciation and Amortization Expense
Depreciation and amortization expense increased $5.2 million, or 10.8%, during
the year ended August 31, 1997, compared to the year ended August 31, 1996. The
increase was associated with increased hazardous landfill cell consumption and
related amortization during the period as well as the inclusion of the Clive,
Utah incineration facility's depreciation expense as of September 1, 1996 and
inclusion of depreciation and amortization related to the Acquisition as of May
15, 1997. As a percentage of revenue, depreciation and amortization expense
increased to 7.9% from 7.4% during the prior year period due in part to the
higher hazardous landfill disposal as a proportion of total revenue and the
inclusion of the Clive facility.

Selling, General and Administrative Expenses
Selling, general and administrative expenses decreased $0.7 million, or 1.0%,
during the current fiscal year versus the prior year period. The decrease was
attributable to a number of cost reduction initiatives implemented and completed
during the current period. As a percentage of revenue, selling, general and
administrative expenses decreased to 10.7% from 11.3% in the prior year, due to
the cost reduction measures and economies of scale gained through the
Acquisition.

Restructuring Charge
A one-time restructuring charge of $331.7 million ($200 million after tax, or
$1.45 per share) impacted the current year earnings. The charge reflected the
closing of certain of the operating facilities that have become redundant, and
an impairment in the carrying value of certain operating facilities due to lower
expected future cash flows, as a result of the Acquisition. Management
anticipates that the Company can achieve cost reductions related to the
Acquisition of approximately $90 million annually, within six months of the
Acquisition, based on the historical operating levels for Rollins and Old LESI.
Reductions of $18 million relate to depreciation and amortization expense
savings, primarily due to the restructuring charge. The cash expense reductions
of $72 million relate to planned personnel reductions and lower operating and
administrative costs due to facility closures.

Allocated Interest Expense
Allocated interest expense decreased $17.5 million primarily as a result of the
recapitalization related to the Acquisition. Prior to May 15, 1997 interest
expense was allocated to Old LESI from the parent corporation, Laidlaw.

Interest Expense
Interest expense increased by $14.9 million from the prior fiscal year primarily
as a result of recapitalization related to the Acquisition. Effective May 15,
1997 interest expense includes financing costs associated with the Bank Credit
Facility, other long-term debt and the Subordinated Convertible Debenture, as
described in Note 4 and Note 5, respectively of the Notes to Consolidated
Financial Statements.

Other Income
Other income increased by $1.5 million from the prior fiscal year primarily as a
result of recapitalization related to the Acquisition and a resultant increase
in funds available for short-term investment.

Income Tax Expense (Benefit)
Prior to May 15, 1997, income tax expense was allocated by the parent
corporation using applicable income tax rates on income for tax purposes on a
separate return basis. Effective May 15, 1997 the Company is subject to full
federal and state income tax rates.


<PAGE>   5

13

                                                                         LAIDLAW
                                                          ENVIRONMENTAL SERVICES



Management's Discussion and Analysis of Financial Condition and Results of
Operations


RESULTS OF OPERATIONS:
Fiscal Year Ended August 31, 1996 compared with Fiscal Year Ended August 31,
1995

<TABLE>
<CAPTION>
Operating results are as follows ($ in millions):
Year Ended August 31                              1996              1995
- ------------------------------------------------------------------------------
<S>                                        <C>        <C>    <C>        <C>   
Revenue                                    $  653.0   100.0% $  599.2   100.0%
Operating expense                             473.6    72.5%    428.9    71.6%
Depreciation and amortization                  48.3     7.4%     48.3     8.0%
Selling, general and administrative            73.8    11.3%     62.1    10.4%
                                           ----------------------------------
Operating results                          $   57.3     8.8% $   59.9    10.0%
                                           ==================================

<CAPTION>
Revenues
Components of Revenue ($ in millions):
Year Ended August 31                               1996              1995
- -----------------------------------------------------------------------------
<S>                                        <C>        <C>    <C>        <C>   
Service Center                             $  294.8    39%   $  279.2    41%
Landfill                                      190.4    25%      139.1    21%
Incinerator                                    31.4     4%       30.1     4%
Transportation                                 89.9    12%       99.1    15%
Specialty Services                            148.0    20%      131.0    19%
                                           ----------------------------------
                                              754.5   100%      678.5   100%
Less: Intercompany eliminations              (101.5)            (79.3)
                                           ----------------------------------
   Total revenue                           $  653.0          $  599.2
                                           ==================================
</TABLE>

Revenues increased $53.8 million, or 9.0%, during the fiscal year ended August
31, 1996, compared to the fiscal year ended August 31, 1995, supported primarily
by the increased landfill activity. Landfill revenue for 1996 increased 36.9%
over 1995 primarily due to the full-year results of landfill operations acquired
from USPCI. Service center revenue increased 5.6%, while incinerator revenue
increased 4.3% over the previous fiscal year. Transportation revenue decreased
9.3% from the prior year period. Specialty services revenue increased $17.0
million, or 13.0%. Processing of intercompany streams during 1996 increased
$22.2 million, or 28.0%, over the prior year.

Management's estimates of the components of changes in the Company's
consolidated revenue are as follows:

<TABLE>
<CAPTION>
                                                  Percentage Increase (Decrease)
- -------------------------------------------------------------------------------
<S>                                               <C>   
Expansion of customer base by acquisition                     17.2% 
Other, primarily through volume and price changes             (8.4)% 
Foreign exchange rate changes                                  0.2%
                                                             -----
   Total                                                       9.0%
                                                             =====
</TABLE>

Growth in revenue in fiscal year 1996, was primarily attributable to the
inclusion of approximately $103 million from the acquired operations of USPCI
and Greenfield Services Corporation. Revenue from existing operations was lower,
primarily due to the reduced activity at the Company's remedial services
locations in the Gulf Coast and Western regions of the United States and a
decline in one-time, project work at the Company's landfills. Lower pricing
within the hazardous waste management industry was a component of lower revenue
for most areas of the Company.


Operating Expenses
Operating expenses increased $44.7 million, or 10.4%, during the year ended
August 31, 1996, compared to the year ended August 31, 1995. The increase was
primarily attributable to additional business obtained as part of the
acquisition of USPCI. As a percentage of revenue, operating expense increased to
72.5% from 71.6% in the comparable prior year, primarily due to downward pricing
pressure on revenue.

Depreciation and Amortization Expense
Depreciation and amortization expense for fiscal 1996 was essentially unchanged
from fiscal year 1995. As a percentage of revenue, depreciation and amortization
expense decreased to 7.4% from 8.0% in the prior year also due to the decline in
landfill cell amortization rates.

Selling, General and Administrative Expenses
Selling, general and administrative expenses of $73.8 million during fiscal
1996, increased 18.9% over the prior year. As a percentage of revenue, selling,
general and administrative expenses increased to 11.3% from 10.4% in the prior
year due to higher selling costs related to the acquired USPCI customer
accounts.

<PAGE>   6



14

                                                                         LAIDLAW
                                                          ENVIRONMENTAL SERVICES



Management's Discussion and Analysis of Financial Condition and Results of
Operations

Allocated Interest Expense
Allocated interest expense increased 12.6% during the year ended August 31, 1996
over the prior year primarily related to an increase in allocated interest
expense from its parent, Laidlaw, associated with the acquisition of USPCI.

Interest Expense
Interest expense increased 24.4%, during 1996 compared to 1995 primarily as a
result of the acquisition of USPCI.

EARNINGS PER SHARE
Net income (loss) per common share is computed by dividing net income (loss) by
the weighted average number of common shares deemed outstanding for each period
presented. Shares of stock issuable pursuant to stock options, have not been
considered as their effect is anti-dilutive. Earnings (loss) per share were
$(1.329), $0.068 and $0.147 for the years ended August 31, 1997, 1996 and 1995,
respectively.

FACTORS THAT MAY AFFECT FUTURE RESULTS
This report contains various forward-looking statements under the safe harbor
provided within the meaning of the Private Securities Litigation Reform Act of
1995, relating to anticipated financial performance, business prospects, new
services, market forces, commitments, technological developments and other
matters. These statements are based on current plans and expectations of the
Company and involve risks and uncertainties that could cause actual future
activities and results of operations to be materially different from those set
forth in the forward-looking statements.

Forward looking statements typically contain words such as "anticipates,"
"believes," "estimates," "expects," "forecasts," "predicts" or "projects," or
variations of these words, suggesting that future outcomes are uncertain.

The risks and uncertainties that may cause actual results to differ include,
among others, general economic conditions, risks associated with acquisitions,
fluctuations in operating results because of acquisitions and variations in
stock prices, changes in applicable federal, state and local laws and
regulations, especially environmental regulations, alternate and emerging
technologies, competition and pricing pressures, overcapacity in the industry,
seasonal fluctuations due to weather, uncertainties of litigation and risks
associated with the operations and growth of the newly acquired business of
Rollins. As a result of these factors, the Company's revenue and income could
vary significantly from quarter to quarter, and past financial performance
should not be considered a reliable indicator of future performance.

CAPITALIZATION
Prior to May 15, 1997, Laidlaw provided the majority of the financing for Old
LESI's operating and investing activities through a combination of intercompany
equity and debt investments. The total investment in the Company by Laidlaw is
included in stockholders' equity prior to May 15, 1997. At August 31, 1996, the
Company's capital consisted of $55.8 million of long-term debt and $1,094.8
million of stockholders' equity.

On May 15, 1997, Rollins issued 120 million common shares and a $350 million 5%
Subordinated Convertible Debenture ("PIK"), and paid $349.1 million in cash
($400 million, less debt of $50.9 million assumed), to Laidlaw to consummate the
Acquisition. This recapitalization resulted in the use of external financing
from the Bank Credit Facility and a reduction in stockholders' equity related to
the payments to Laidlaw. At August 31, 1997 the Company's capital consisted of
$540.1 million of long-term debt, a $350 million PIK and $328 million of
stockholders' equity.

LIQUIDITY
The cash provided by continuing operations during fiscal years 1997, 1996 and
1995 was $37 million, $21.9 million and $39.8 million, respectively. In 1997,
accounts payable, accrued liabilities and deferred liabilities decreased by
$52.6 million, excluding cash spending on acquisitions, which includes costs
related to landfill cell closures, site remediation and facility closures.
Deferred income taxes increased by $37.5 million. Cash provided by discontinued
operations was $0.4 million, $3.2 million and $0.3 million, in 1997, 1996 and
1995, respectively.

As a direct result of the personnel reductions and facility closures, related to
the Rollins acquisition, the Company plans incurring cash severance and closure
costs. With respect to the former Rollins' operations, approximately $17 million
of severance costs and $40 million of closure costs related to dismantling,
decontamination and regulatory approval are planned to be incurred. With respect
to the Old LESI operations, approximately $25 million of costs are scheduled to
be incurred. Of such costs, management expects to incur between $20 million and
$25 million within 12 months of the Acquisition.

The Company believes that the existing level of working capital of $76.1 million
is adequate for normal growth and operating needs. Trade and other accounts
receivable continues to represent the largest portion of current assets,
totaling $210.9 million at August 31, 1997. The average days sales outstanding
reduced to 93 days, from 99 days at August 31, 1996. The Company's primary
sources of liquidity are cash flows from operations, existing cash and
short-term investments of $11.2 million, short-term unused working capital


<PAGE>   7

15

                                                                         LAIDLAW
                                                          ENVIRONMENTAL SERVICES



Management's Discussion and Analysis of Financial Condition and Results of
Operations


bank lines of $14.6 million and the unused cash portion of the Bank Credit
Facility's revolver tranche of $100 million. Interest payments for the Company's
PIK are due semiannually, on November 15 and May 15 until its maturity on May
15, 2009. Interest payments due during the first two years after issuance of the
PIK are required to be satisfied by the issuance of the Company's common shares,
based on the market price of the common shares at the time the interest payments
are due. At the Company's option, any other interest or principal payments
(other than optional early redemption) may be satisfied by issuing common
shares, based on the market price at the time such payments are due.

The Company expects to fund the debt repayment requirements outlined in Note 4
of the Notes to Consolidated Financial Statements from cash flows from
operations. The $365.7 million due past fiscal 2002 includes approximately $125
million of industrial revenue bonds with maturities ranging primarily from 10 to
30 years.

The Company has not paid dividends during the reported periods, and does not
intend to pay dividends in the foreseeable future. Additionally, the credit
agreement pursuant to the Bank Credit Facility prohibits the payment of
dividends (unless a given percentage of lenders otherwise agree).

CAPITAL EXPENDITURES AND CAPITAL RESOURCES
Investing activities from continuing operations used cash of $21.9 million,
$114.9 million and $300.8 million in 1997, 1996 and 1995, respectively. Net
expenditures for the purchase of fixed assets for normal replacement
requirements, and increases in services were $36.1 million, $104.3 million and
$68.7 million in 1997, 1996 and 1995, respectively. The Company's projected
capital expenditures for fiscal 1998 are approximately $40 million. The Company
believes that it has adequate resources to finance these expenditures.

Net cash provided by (used in) financing activities was $(2.5) million, $94.8
million and $263.8 million in 1997, 1996 and 1995, respectively.

Significant non-recurring items that affected cash flows during the past three
years included the acquisition of Rollins in 1997.

The Bank Credit Facility also contains negative, affirmative and financial
covenants customarily found in credit agreements for financings similar to the
financing provided under the Bank Credit Facility, including covenants limiting
annual capital expenditures, restricting debt, guaranties, liens, mergers and
consolidations, sales of assets and payment of dividends. The Company was in
compliance with its covenants at August 31, 1997.

INFLATION
The Company's business has not been, during the periods presented herein, and is
not expected in the near future to be, significantly affected by inflation.

RECENT ACCOUNTING PRONOUNCEMENTS
In October 1996, the American Institute of Certified Public Accountants issued
Statement of Position 96-1 "Environmental Remediation Liabilities" ("SOP 96-1")
for fiscal years beginning after December 15, 1996. SOP 96-1 provides that
environmental remediation liabilities should be accrued when the criteria of
Statement of Financial Accounting Standards ("SFAS") No. 5, "Accounting for
Contingencies" are met and it includes benchmarks to aid in the determination of
when environmental remediation liabilities should be recognized. SOP 96-1 also
provides guidance with respect to the measurement of the liability and the
display and disclosure of environmental remediation liabilities in the financial
statements. The Company believes that the adoption of this SOP will not have a
material impact on the Company's financial condition or results of operations.

In February 1997, the Financial Accounting Standards Board ("FASB") issued SFAS
No. 128 "Earnings Per Share". This standard is effective for financial
statements issued for periods ending after December 15, 1997, and will be
adopted for the interim period ended February 28, 1998, with restatement of
all prior-period earnings per share ("EPS") data presented. This statement
requires the presentation of basic and diluted EPS. Basic EPS excludes dilution
and is computed by dividing income available to common stockholders by the
weighted average number of common shares outstanding for the period. Diluted EPS
is computed similarly to fully diluted EPS under the existing rules. The Company
does not expect that SFAS No. 128 will have a material impact on the earnings
per share computation.


<PAGE>   8

16

                                                                         LAIDLAW
                                                          ENVIRONMENTAL SERVICES



Consolidated Statements of Income

<TABLE>
<CAPTION>
($ in thousands, except per share amounts)
Year Ended August 31                                  1997         1996         1995
- --------------------------------------------------------------------------------------
<S>                                                <C>          <C>          <C>      
Revenues                                           $ 678,619    $ 652,973    $ 599,241
- --------------------------------------------------------------------------------------

Expenses:
   Operating                                         485,062      473,563      428,932
   Depreciation and amortization                      53,506       48,291       48,386
   Selling, general and administrative                73,068       73,800       62,064
   Restructuring charge                              331,697           --           --
- --------------------------------------------------------------------------------------
      Total expenses                                 943,333      595,654      539,382
- --------------------------------------------------------------------------------------
Operating income (loss)                             (264,714)      57,319       59,859
Allocated interest expense                            24,030       41,506       36,846
Interest expense                                      20,243        5,344        4,296
Other income                                           2,865        1,391        2,967
- --------------------------------------------------------------------------------------
Income (loss) from continuing operations
   before income tax                                (306,122)      11,860       21,684
Income tax expense (benefit)                        (122,789)       2,500        4,769
- --------------------------------------------------------------------------------------
Income (loss) from continuing operations
   before minority interest                         (183,333)       9,360       16,915
Minority interest (net of tax)                          (119)      (2,646)        (150)
- --------------------------------------------------------------------------------------
Income (loss) from continuing operations            (183,452)       6,714       16,765
Income from discontinued operations (net of tax)          20        1,496          819
- --------------------------------------------------------------------------------------
   Net income (loss)                               $(183,432)   $   8,210    $  17,584
======================================================================================
Per share data:
   Net income (loss) from continuing operations    $  (1.329)   $   0.056    $   0.140
   Income from discontinued operations                    --        0.012        0.007
- --------------------------------------------------------------------------------------
Net income (loss) per share                        $  (1.329)   $   0.068    $   0.147
======================================================================================

Weighted average common and common
   stock equivalents outstanding (000's)             138,033      120,000      120,000
</TABLE>


See accompanying Notes to Consolidated Financial Statements.


<PAGE>   9





17

                                                                        LAIDLAW
                                                         ENVIRONMENTAL SERVICES



Consolidated Balance Sheets

<TABLE>
<CAPTION>
($ in thousands)
August 31                                              1997            1996
- -------------------------------------------------------------------------------
ASSETS
Current assets
<S>                                               <C>                 <C>      
Cash and cash equivalents                         $    11,160         $       -
   Trade and other accounts receivable 
    (net of allowance for doubtful 
    accounts of $7,236 in 1997; 
    $4,985 in 1996)                                   210,914           184,626
   Inventories                                          7,927             7,956
   Income taxes recoverable                                 -             5,017
   Deferred income taxes                               13,027                 -
   Other current assets                                 8,512             5,871
- -------------------------------------------------------------------------------
     Total current assets                             251,540           203,470
- -------------------------------------------------------------------------------
Long-term investments                                  51,909            37,093
- -------------------------------------------------------------------------------
Land, landfill sites and improvements                 499,680           564,934
Buildings                                             423,712           397,165
Machinery and equipment                               610,274           431,077
Construction in process                                 6,357            42,732
- -------------------------------------------------------------------------------
   Property, plant and equipment                    1,540,023         1,435,908
     Less: Accumulated depreciation 
           and amortization                          (303,454)         (323,180
- -------------------------------------------------------------------------------
Net property, plant and equipment                   1,236,569         1,112,728
- -------------------------------------------------------------------------------
Net assets of discontinued operations                       -            55,827
Goodwill, at cost (net of 
  accumulated amortization
  of $11,669 in 1997; $12,962 in 1996)                 70,527            81,579
Deferred charges                                          333               597
- -------------------------------------------------------------------------------
  Total assets                                     $1,610,878        $1,491,294
===============================================================================

LIABILITIES
Current liabilities
   Accounts payable                                $   48,148        $   88,806
   Accrued liabilities                                115,211            66,705
   Current portion of long-term debt                   12,086             7,282
- -------------------------------------------------------------------------------
     Total current liabilities                        175,445           162,793
- -------------------------------------------------------------------------------
Deferred items 
   Income taxes                                        49,790            86,985
   Other                                              179,668            98,183
Long-term debt                                        528,010            48,556
Subordinated convertible debenture                    350,000                 -
- -------------------------------------------------------------------------------
   Total liabilities                                1,282,913           396,517
- -------------------------------------------------------------------------------

Commitments and contingencies

STOCKHOLDERS' EQUITY 
  Common stock, par value $1.00 per 
  share; authorized 350,000,000,    
    issued and outstanding 180,435,311 in 
    1997, 120,000,000 in 1996                         180,435           120,000
   Additional paid-in capital                         385,200         1,028,309
   Accumulated deficit                               (237,670)          (53,532
- -------------------------------------------------------------------------------
     Total stockholders' equity                       327,965         1,094,777
- -------------------------------------------------------------------------------
  Total liabilities and stockholders' equity       $1,610,878        $1,491,294
===============================================================================
</TABLE>

See accompanying Notes to Consolidated Financial Statements.




<PAGE>   10

18

                                                                         LAIDLAW
                                                          ENVIRONMENTAL SERVICES



CONSOLIDATED STATEMENTS OF CASH FLOWS

<TABLE>
<CAPTION>
($ in thousands)       
Year Ended August 31                                        1997                1996           1995
- ----------------------------------------------------------------------------------------------------
<S>                                                      <C>                  <C>          <C>      
Cash flow from operating activities:
Net Income (loss)                                        $(183,432)           $   8,210    $  17,584
   Adjustments to reconcile net income
     (loss) to net cash provided by (used in)
     continuing operations:
   Income from discontinued operations                         (20)              (1,496)        (819)
   Restructuring charge, net of
     applicable income taxes                               200,000                   --           --
   Depreciation and amortization                            53,506               48,291       48,386
   Deferred income taxes                                    37,507                  783        4,298
   Change in accounts receivable                            (8,151)              (1,719)      (6,896)
   Change in accounts payable, accrued
     liabilities and deferred liabilities                  (52,632)             (30,692)     (21,741)
   Decrease in liabilities assumed
     upon acquisition                                      (17,945)                  --           --
   Change in other, net                                      8,126               (1,428)        (984)
- ----------------------------------------------------------------------------------------------------
Net cash provided by continuing operations                  36,959               21,949       39,828
Net cash provided by discontinued operations                   425                3,199          276
- ----------------------------------------------------------------------------------------------------
     Net cash provided by operating activities              37,384               25,148       40,104
- ----------------------------------------------------------------------------------------------------

Cash flow from investing activities:
   Cash acquired (expended) on acquisition of business      15,451               (8,000)    (229,186)
   Purchase of property, plant and equipment               (36,097)            (104,284)     (68,650)
   Increase in long-term investments                        (2,837)                  --       (1,238)
   Proceeds from sales of equipment                          1,596                3,319        1,176
   Other                                                        --               (5,984)      (2,859)
- ----------------------------------------------------------------------------------------------------
Net cash used in continuing operations                     (21,887)            (114,949)    (300,757)
Net cash used in discontinued operations                    (1,887)              (5,026)      (3,173)
- ----------------------------------------------------------------------------------------------------
     Net cash used in investing activities                 (23,774)            (119,975)    (303,930)
- ----------------------------------------------------------------------------------------------------
Cash flows from financing activities:
   Issuance of debt under Bank Credit Facility             375,000                   --           --
   Additional debt issuances                                76,622                   --       32,251
   Debt financing fees and expenses                        (18,788)                  --           --
   Bank overdraft                                          (32,188)              21,880        7,311
   Repayment of long-term debt                             (61,542)              (7,548)     (27,049)
   Payment to Laidlaw Inc.                                (349,116)                  --           --
   Advances from Laidlaw Inc.                                7,562               82,913      243,614
- ----------------------------------------------------------------------------------------------------
Net cash provided by (used in)
 continuing operations                                      (2,450)              97,245      256,127
Net cash provided by (used in)
 discontinued operations                                        --               (2,418)       7,699
- ----------------------------------------------------------------------------------------------------
     Net cash provided by (used in)
      financing activities                                  (2,450)              94,827      263,826
- ----------------------------------------------------------------------------------------------------

Net increase in cash and cash equivalents                   11,160                   --           --
Cash and cash equivalents at:
   Beginning of period                                          --                   --           --
====================================================================================================
   End of period                                         $  11,160            $      --    $      --
====================================================================================================

CASH FLOW INFORMATION
Cash paid during the year for:
   Interest (net of amounts capitalized)                 $  26,660            $  34,050    $  35,242
====================================================================================================
   Income taxes                                          $      --            $      --    $      --
====================================================================================================

NONCASH INVESTING AND FINANCING ACTIVITIES:
  Acquisition of Rollins
     Fair value of assets acquired                       $ 495,168            $      --    $      --
     Fair value of liabilities assumed                     329,134                   --           --
- ----------------------------------------------------------------------------------------------------
     Fair value of stock issued                          $ 166,034            $      --    $      --
====================================================================================================
     Issuance of subordinated convertible
      debenture to Laidlaw Inc.                          $ 350,000
====================================================================================================
     Accounts payable related to fixed assets            $      --            $   8,992    $      --
====================================================================================================
</TABLE>


See accompanying Notes to Consolidated Financial Statements.


<PAGE>   11
19


                                                                         LAIDLAW
                                                          ENVIRONMENTAL SERVICES



Consolidated Statements of Stockholders' Equity

<TABLE>
<CAPTION>
                                                                                                     Total
                                                          Common      Additional    Accumulated  Stockholders'
($ in thousands)                                          Stock    Paid-in Capital     Deficit       Equity
- --------------------------------------------------------------------------------------------------------------
<S>                                                   <C>            <C>            <C>            <C>        
Balance at September 1, 1994                          $   120,000    $   757,923    $   (79,326)   $   798,597
Net income                                                     --             --         17,584         17,584
Net additional investment by Laidlaw Inc.                      --        240,085             --        240,085
- --------------------------------------------------------------------------------------------------------------
Balance at August 31, 1995                                120,000        998,008        (61,742)     1,056,266
Net income                                                     --             --          8,210          8,210
Net additional investment by Laidlaw Inc.                      --         30,301             --         30,301
- --------------------------------------------------------------------------------------------------------------
Balance at August 31, 1996                                120,000      1,028,309        (53,532)     1,094,777
Net loss                                                       --             --       (183,432)      (183,432)
Net additional investment by Laidlaw Inc.                      --          7,562             --          7,562
Issuance of subordinated convertible
   debenture to Laidlaw Inc.                                   --       (350,000)            --       (350,000)
Cash paid to Laidlaw Inc.                                      --       (349,116)            --       (349,116)
Issuance of additional shares on acquisition               60,376        105,658             --        166,034
Exercise of stock options                                      59             96             --            155
Transfer of JTM Industries, Inc. to Laidlaw Inc.               --        (57,309             --        (57,309)
Cumulative foreign currency translation adjustments            --             --           (706)          (706)
- --------------------------------------------------------------------------------------------------------------
Balance at August 31, 1997                            $   180,435    $   385,200    $  (237,670)   $   327,965
==============================================================================================================
</TABLE>

See accompanying Notes to Consolidated Financial Statements.


<PAGE>   12




20


                                                                         LAIDLAW
                                                          ENVIRONMENTAL SERVICES



Notes to Consolidated Financial Statements

NOTE 1 - BUSINESS COMBINATION
On May 15, 1997, pursuant to a February 6, 1997 stock purchase agreement (the
"Stock Purchase Agreement") between Rollins Environmental Services, Inc.
("Rollins") and Laidlaw Inc. ("Laidlaw"), Rollins acquired the hazardous and
industrial waste operations of Laidlaw ("Old LESI" or the "Accounting Acquirer")
(the "Acquisition"). The business combination was accounted for as a reverse
acquisition using the purchase method of accounting. Rollins issued 120 million
common shares and a $350 million 5% subordinated convertible debenture, and paid
$349.1 million in cash ($400 million, less debt of $50.9 million assumed), to
Laidlaw to consummate the Acquisition. Coincident with the closing of the
Acquisition, the continuing legal entity changed its name from Rollins
Environmental Services, Inc. to Laidlaw Environmental Services, Inc. (the
"Company"). As a result of the Acquisition, Laidlaw owns 67% of the issued
common shares of the Company. Accordingly, the Company adopted the Accounting
Acquirer's fiscal year-end of August 31.

The reverse acquisition purchase price is the fair market value of the Rollins
common shares outstanding prior to completion of the Acquisition. As the only
remaining conditions to close the Acquisition after signing the Stock Purchase
Agreement involved stockholder and regulatory approvals, the date of signing is
the appropriate determination date for the market price of the Rollins common
shares. The average closing market price per share on the NYSE - Composite
Transactions for the five trading days before and after February 6, 1997, was
$2.75. Applying this price per share to the 60,375,811 common shares outstanding
on February 6, 1997, resulted in a purchase price of approximately $166 million.

As a direct result of the personnel reductions and facility closures related to
the Rollins acquisition, the Company plans incurring cash severance and closure
costs. With respect to the former Rollins' operations, approximately $17 million
of severance costs and $40 million of closure costs related to dismantling,
decontamination and regulatory approval are planned to be incurred. With respect
to the Old LESI operations, approximately $25 million of costs are scheduled to
be incurred. Of such costs, management expects to incur between $20 million and
$25 million within 12 months of the Acquisition. (See Note 9.)

As a result of the Acquisition, the historical financial information included in
these consolidated financial statements is that of the Accounting Acquirer. The
results of operations of Rollins have been included from the date of
acquisition, May 15, 1997.

Condensed unaudited pro forma statements of operations data, as if the
Acquisition had occurred at the beginning of the previous year, are as follows
($ in thousands, except per share amounts):

<TABLE>
<CAPTION>
Fiscal Year                                           1997         1996
- -------------------------------------------------------------------------
<S>                                               <C>           <C>      
Revenue                                           $  825,505    $ 885,741
Loss from continuing operations                     (222,162)     (23,981)
Income from discontinued operations                       20        1,496
                                                  -----------------------
Net loss                                          $ (222,142)   $ (22,485)
                                                  =======================

Per share data:
Loss from continuing operations                   $   (1.204)   $   (.131)
Income from discontinued operations                     .000         .008
                                                  -----------------------
Net loss                                          $   (1.204)   $   (.123)
                                                  =======================
Weighted average common and common stock 
 equivalents outstanding (000's)                     184,444      182,787
</TABLE>


NOTE 2 - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
The accompanying consolidated financial statements have been prepared in
accordance with generally accepted accounting principles requiring the Company
to make estimates and assumptions that affect reported amounts of assets,
liabilities, revenue and expenses, and disclosure of contingencies. Future
events could alter such estimates in the near term.

Certain figures as of August 31, 1996, and for the years ended August 31, 1996
and 1995 have been reclassified to conform to the current period's
presentations. The Company has revised its statement of cash flows for the years
ended August 31, 1996 and 1995 to reclassify certain long term liability amounts
from financing activities to operating activities and to reclassify bank
overdraft amounts from operating activities to financing activities.
Additionally, the amount reported as the change in Net Investment by Laidlaw
Inc. has been reclassified as a financing cash flow activity. Accordingly, cash
flows from operations decreased by $37,604 and $13,478 for the years ended
August 31, 1996 and 1995, respectively, and cash flows from financing activities
decreased by $907 and $244,191 for the years ended August 31, 1996 and 1995,
respectively, from the amounts previously reported. 


<PAGE>   13

21

                                                                         LAIDLAW
                                                          ENVIRONMENTAL SERVICES



Notes to Consolidated Financial Statements


A summary of the significant accounting policies followed in the preparation of
these consolidated financial statements is as follows:

Consolidation
The consolidated financial statements include the accounts of the Company and
all of its subsidiary companies. All significant intercompany transactions are
eliminated. The purchase method of accounting for business combinations has been
used.

Cash and Cash Equivalents
Cash and cash equivalents consist of cash on deposit and term deposits in
investments with maturities of less than three months.

Inventories
Inventories are valued at the lower of cost, determined on a first-in, first-out
basis, or replacement cost.

Long-term investments
Long-term investments, held to maturity, are carried at cost, which approximates
fair market value, and consist primarily of long-term trust fund deposits with
government authorities to support closure and post-closure activities at several
of the Company's facilities.

Property, plant and equipment
Property, plant and equipment is recorded at cost.

Landfill sites, preparation costs and improvements are amortized on the basis of
landfill capacity utilized during the year. Landfill capacity represents total
permitted airspace which is measured in the form of cubic yards. Effective in
1996, the Company commenced capitalizing interest on landfill capacity under
development to the cost of the landfill. The effect of the adoption of this
policy was immaterial in the current and prior years.

During the construction and development period of an asset, the costs incurred,
including applicable interest costs, are classified as construction in process.
Once an asset has been completed and put into use, it is transferred to the
appropriate category and depreciation commences.

During fiscal years 1997, 1996 and 1995, the Company capitalized interest of
$6.7 million, $12.8 million and $5.9 million, respectively.

The cost of permits directly related to property, plant and equipment is
capitalized with the related asset and depreciated over the expected permit
life.

Depreciation and amortization of other property, plant and equipment is provided
substantially on a straight-line basis over their estimated useful lives which
are as follows:
               Buildings - 20 to 40 years
               Machinery and equipment - 5 to 30 years.

Goodwill
Goodwill is amortized on a straight-line basis over forty years.

Impairment
The Company periodically reviews the carrying values of its fixed assets and
intangibles to determine whether such values are recoverable. Accordingly, when
indicators of impairment are present, the Company evaluates the carrying value
of property, plant and equipment and intangibles in relation to the operating
performance and future undiscounted cash flows of the underlying business. The
Company adjusts the book value of the underlying asset if the sum of expected
future cash flows is less than book value. Any resulting write downs are charged
to depreciation and amortization expense.

Deferred charges
Deferred charges are amortized on a straight-line basis over a two- to five-year
period depending on the nature of the deferred costs.

Deferred financing costs
Deferred financing costs are amortized over the life of the related debt
instrument and included in long-term debt.



<PAGE>   14


22

                                                                         LAIDLAW
                                                          ENVIRONMENTAL SERVICES



Notes to Consolidated Financial Statements

Environmental liabilities
Environmental liabilities include accruals for costs associated with closure and
post-closure monitoring and maintenance of the Company's landfills, remediation
at certain of the Company's facilities and corrective actions at Superfund
sites. The Company accrues for closure and post-closure costs over the life of
the landfill site as capacity is consumed.

Financial instruments
The Company's cash and cash equivalents, accounts receivable, certain long-term
investments, accounts payable, long-term debt and the subordinated convertible
debenture constitute financial instruments. Concentration of credit risks in
accounts receivable are limited due to the large number of customers comprising
the Company's customer base throughout North America. The Company performs
ongoing credit evaluations of its customers, but does not require collateral to
support customer accounts receivable. The Company establishes an allowance for
doubtful accounts based on the credit risk applicable to particular customers,
historical trends and other relevant information.

Derivative financial instruments
The Company uses interest rate swap agreements to minimize the impact of
interest rate fluctuations on floating interest rate long-term borrowings. The
differential paid or received on interest rate swap agreements is recognized as
an adjustment to interest expense. See Note 4 for fair value information
pertaining to long-term debt and derivative financial instruments.

Revenue recognition
Revenues, along with the related costs of treatment, disposal and
transportation, at the Company's service center operations, which primarily
collect, transport and prepare waste material for transfer to disposal
facilities are recognized when the waste material is accepted at the service
center. Pursuant to contracts with its customers, the Company accepts title to
waste material at such time and provides contractual indemnification to its
customers against future liability with respect to the waste materials.

Revenues from the Company's treatment and disposal operations, primarily
landfill and incineration facilities, are recognized when the waste material is
disposed of, whether burned, landfilled or treated.

Income taxes
Deferred income taxes reflect the tax consequences on future years of
differences between the tax bases of assets and liabilities and their financial
reporting amounts. Future tax benefits, such as net operating loss
carryforwards, are recognized to the extent that realization of such benefits
are more likely than not. Prior to May 15, 1997, the Company filed consolidated
tax returns with Laidlaw. Income taxes for the periods prior to May 15, 1997
have been calculated using applicable income tax rates on income for tax
purposes on a separate return basis.

Foreign currency translation
The Company's foreign operations are all of a self-sustaining nature. The
functional currency of the Company's foreign subsidiaries is its respective
local currency. Assets and liabilities are translated to U. S. Dollars at the
exchange rate in effect at the balance sheet date and revenue and expenses at
weighted monthly average exchange rates for the year. Gains and losses from the
translation of the financial statements of the foreign subsidiaries are included
in stockholders' equity.


NOTE 3 - ACCRUED LIABILITIES
Accrued liabilities consist of the following ($ in thousands):

<TABLE>
<CAPTION>
August 31                                                 1997       1996
- ---------------------------------------------------------------------------
<S>                                                     <C>        <C>     
Current portion of environmental liabilities            $ 27,376   $ 26,327
Interest payable                                          12,643        938
Accrued severance pay                                     12,911         --
Accrued disposal costs                                    10,039      9,147
Other                                                     52,242     30,293
                                                        -------------------
   Total                                                $115,211   $ 66,705
                                                        ===================
</TABLE>



NOTE 4 - LONG-TERM DEBT
Prior to May 15, 1997, Laidlaw provided the majority of the financing for Old
LESI's operating and investing activities through a 


<PAGE>   15
23

                                                                         LAIDLAW
                                                          ENVIRONMENTAL SERVICES



Notes to Consolidated Financial Statements

combination of intercompany equity and debt investments. The total investment in
the Company by Laidlaw is included in stockholders' equity prior to May 15,
1997. Interest expense associated with this intercompany financing has been
allocated to the Company based on its share of Laidlaw's consolidated net
assets.

The Company financed the cash consideration portion of the Acquisition and
certain fees related thereto with proceeds of a bank credit facility (the "Bank
Credit Facility") arranged pursuant to a credit agreement between the Company
and a syndicate of banks and other financial institutions. The Bank Credit
Facility consists of five parts: (i) a $275 million six-year senior revolving
credit facility with a $200 million letter of credit sublimit ("Revolving Credit
Facility"), (ii) a $165 million six-year senior amortizing term loan, (iii) a
$60 million six-year senior amortizing Canadian term loan, (iv) a $75 million
minimally amortizing seven-year senior term loan and (v) a $75 million minimally
amortizing eight-year senior term loan. The term loans referred to in clauses
(ii), (iii), (iv) and (v) are collectively referred to herein as the "Term
Loans".

The Term Loans were drawn upon in full May 15, 1997, the closing date of the
Acquisition. The Revolving Credit Facility has $200 million available for
letters of credit and $100 million available for loans, subject to the aggregate
limit of $275 million. As of August 31, 1997, $23.3 million of letters of credit
were issued and none was used for loans.

The Bank Credit Facility also contains negative, affirmative and financial
covenants customarily found in credit agreements for financings similar to the
financing provided under the Bank Credit Facility, including covenants limiting
annual capital expenditures, restricting debt, guaranties, liens, mergers and
consolidations, sales of assets and payment of dividends. The Company was in
compliance with its covenants at August 31, 1997.

The Bank Credit Facility is collateralized by certain tangible assets of the
Company. All of the capital stock of the Company's subsidiaries are pledged to
the lenders, and such subsidiaries guaranty the obligations of the Company to
the lenders.

Interest costs on the Bank Credit Facility are reset periodically, at least
annually, and vary depending on the particular facility and whether the Company
chooses to borrow under Eurodollar or non-Eurodollar loans. Interest costs on
the promissory note is based on U.S. Dollar London Interbank Offered Rate
("LIBOR"), determined on a semi-annual basis.

Long-term debt consisted of the following ($ in thousands):

<TABLE>
<CAPTION>
August 31                                                1997         1996
- -----------------------------------------------------------------------------
<S>                                                    <C>           <C>   
Bank Credit Facility:
   Term loans, U. S., with interest 
    rates from 8.095% to 9.225%                        $315,000      $      -
   Term loans, Canadian, with interest 
    rates from 5.881% to 6.141%                          60,000             -
Promissory note, due May 2003, with 
 an interest rate of 5.98%                               60,000             -
Industrial Revenue Bonds, due 2003 - 2027, 
 with fixed interest rates from 6.0% to 9.0%            123,314        46,991 
Other                                                       948         9,717
                                                       ----------------------
                                                        559,262        56,708
Less: current portion                                    12,086         7,282
Less: unamortized deferred financing costs               19,166           870
                                                       ----------------------
   Total                                               $528,010      $ 48,556
                                                       ======================
</TABLE>

The aggregate amount of minimum payments required on long-term debt in each of
the years indicated is as follows ($ in thousands):

<TABLE>
<CAPTION>
Year ending August 31
- ------------------------------------------------------------------------------
<S>                                                                   <C>     
1998                                                                  $ 12,086
1999                                                                    26,827
2000                                                                    36,658
2001                                                                    51,500
2002                                                                    66,500
Thereafter                                                             365,691
                                                                      --------
     Total minimum payments due                                       $559,262
                                                                      ========
</TABLE>

In management's view, due to the long-term debt being primarily based on
floating rates, the carrying amounts approximate fair value.


<PAGE>   16

24

                                                                         LAIDLAW
                                                          ENVIRONMENTAL SERVICES



Notes to Consolidated Financial Statements

The promissory note and $39 million of the Industrial Revenue Bonds are
guaranteed by Laidlaw.

In July 1997, the Company entered into interest rate swap agreements to alter
interest rate exposures. These agreements, with a principal notional amount of
$160 million, expire in periods ranging from 1.5 to 2.5 years, with a weighted
average of 2.1 years. The Company pays fixed rates ranging from 5.945% to 6.07%,
and receives floating rates based on U.S. Dollar LIBOR, determined on a
quarterly basis of 5.719% at August 31, 1997.

Credit risk arises from the possible inability of counterparties to meet the
terms of their contracts on a net basis. All of the Company's interest rate swap
agreements have been entered into with major financial institutions which are
expected to fully perform under the terms of the agreements. The Company's
credit exposure on swaps is related not to the notional balances of the interest
rate swaps, but to the current and potential replacement costs of all profitable
contracts at year end. At August 31, 1997 this credit exposure is immaterial.
Credit exposure will increase along with the market value of the swaps, if
interest rates increase, and decrease if interest rates decline.

Derivative financial instrument fair values represent an approximation of
amounts the Company would have paid to or received from counterparties to
terminate its positions prior to maturity, and are based on capital market rates
prevailing at August 31, 1997. The Company's fair value benefit for all interest
rate derivative contracts as of August 31, 1997, was approximately $0.3 million.
At August 31, 1997, the Company had no plans to terminate these positions prior
to maturity.


NOTE 5 - SUBORDINATED CONVERTIBLE DEBENTURE
Pursuant to the Acquisition described in Note 1, the Company issued a $350
million 5% subordinated convertible, pay-in-kind debenture ("PIK") due May 15,
2009 to Laidlaw.

Interest on the PIK is payable semiannually, on November 15 and May 15 until
maturity. Beginning on May 15, 2002, and continuing until maturity, the PIK is
convertible, at the option of the holder into common shares of the Company based
on a conversion price per share of $3.75 (the "Conversion Price"). Beginning on
May 15, 2002, and continuing until maturity, the Company has the option to
redeem the PIK in cash if the common shares are trading at a market price
greater than or equal to 120% of the Conversion Price. The PIK ranks junior in
right of payment (principal and interest) to all other long-term debt, including
the Bank Credit Facility.

The estimated fair value of the PIK is based on quoted market prices, where
available, along with present value calculations which are calculated using
current rates for similar debt with the same remaining maturity. The Company
estimates that the fair value of the PIK at August 31, 1997 was $493.6 million.

Interest payments due during the first two years after issuance of the PIK are
required to be satisfied by the issuance of the Company's common shares, based
on the market price of the common shares at the time the interest payments are
due. At the Company's option, any other interest or principal payments, other
than optional early redemption, may be satisfied by issuing common shares, based
on the market price at the time such payments are due.

NOTE 6 - COMMITMENTS AND CONTINGENCIES 
Lease Commitments:
Rental expense incurred under operating leases was $36.1 million, $35.9 million
and $35.4 million in 1997, 1996 and 1995, respectively. Minimum future rental
amounts required under operating leases for premises and equipment having
non-cancelable terms in excess of one year as of August 31, 1997, are as follows
($ in thousands):

<TABLE>
<CAPTION>
Year ending August 31
- --------------------------------------------------------------------------------
<S>                                                                     <C>     
1998                                                                    $ 18,163
1999                                                                      13,007
2000                                                                       9,853
2001                                                                       5,664
2002                                                                       3,454
Thereafter                                                                 9,365
                                                                        --------
    Total                                                               $ 59,506
                                                                        ========
</TABLE>


<PAGE>   17

25

                                                                         LAIDLAW
                                                          ENVIRONMENTAL SERVICES



Notes to Consolidated Financial Statements

Closure, Post-Closure and Environmental Liabilities:
The Company has recorded liabilities for closure and post-closure monitoring and
environmental remediation costs as follows ($ in thousands):

<TABLE>
<CAPTION>
August 31                                                       1997       1996
- --------------------------------------------------------------------------------
<S>                                                           <C>        <C>    
Current portion, included in accrued liabilities              $ 27,376   $26,327
Non-current portion, included in deferred items-other          155,685    70,478
                                                              ------------------
    Total                                                     $183,061   $96,805
                                                              ==================
</TABLE>

The business of the Company's hazardous and industrial waste services is
continuously regulated by federal, state, provincial and local provisions that
have been enacted or adopted, regulating the discharge of materials into the
environment or primarily for the purpose of protecting the environment. The
nature of the Company's businesses results in its frequently becoming a party to
judicial or administrative proceedings involving all levels of governmental
authorities and other interested parties. The issues that are involved generally
relate to applications for permits and licenses by the Company and their
conformity with legal requirements and alleged technical violations of existing
permits and licenses. The Company does not believe that these matters will be
material to its operations or financial condition.

The Company, in the normal course of its business, expends funds for
environmental protection and remediation, but does not expect these expenditures
to have a materially adverse effect on its financial condition or results of
operations, since its business is based upon compliance with environmental laws
and regulations.

Closure and post-closure monitoring and maintenance costs for U.S. landfills are
estimated based on the technical requirements of Subtitle C and D Regulations of
the U. S. Environmental Protection Agency or the applicable state requirements,
whichever is stricter, and the air emissions standards under the Clean Air Act.
The costs include such items as final capping of the site, methane gas and
leachate management, groundwater monitoring and operation and maintenance costs
to be incurred during the period after the facility closes and ceases to accept
waste. Closure and post-closure costs for the Company's landfills in Canada are
based upon the local landfill regulations governing the facility.

The Company has also established procedures to routinely evaluate potential
remedial liabilities at sites which it owns or operates, or to which it
transports waste, including 22 sites listed on the Superfund National Priority
List ("NPL"). In the majority of situations, the Company's connection with NPL
sites relates to allegations that its subsidiaries, or their predecessors,
transported waste to the facilities in question, often prior to the acquisition
of such subsidiaries by the Company. The Company routinely reviews and evaluates
sites requiring remediation, including NPL sites, giving consideration to the
nature (i.e., owner, operator, transporter or generator), and the extent (i.e.,
amount and nature of waste hauled to the location, number of years of site
operations or other relevant factors), of the Company's alleged connection with
the site, the accuracy and strength of evidence connecting the Company to the
location, the number, connection and financial ability of other named and
unnamed potentially responsible parties and the nature and estimated cost of the
likely remedy. Where the Company concludes that it is probable that a liability
has been incurred, provision is made in the financial statements, based upon
management's judgment and prior experience, for the Company's best estimate of
the liability. If no amount within the range appears to be a better estimate
than any other amount, then the Company provides for the minimum amount within
the range in accordance with SFAS No. 5, "Accounting for Contingencies". Such
estimates are subsequently revised as deemed necessary as additional information
becomes available. The Company believes that it is more than remotely possible
but less than likely, that its potential liability could be at the high end of
such ranges, which would be approximately $26 million higher in the aggregate
than the estimate that has been recorded in the financial statements as of
August 31, 1997.

Estimates of the extent of the Company's degree of responsibility for
remediation of a particular site and the method and ultimate cost of remediation
require a number of assumptions and are inherently difficult to evaluate, such
that the ultimate outcome may differ from current estimates. However, the
Company believes that its extensive experience in the environmental services
business, as well as its involvement with a large number of sites, provides a
reasonable basis for estimating its aggregate liability. As additional
information becomes available, estimates are adjusted as necessary. While the
Company does not anticipate that any such adjustment would be material to its
financial statements, it is reasonably possible that technological, regulatory
or enforcement developments, the results of environmental studies or other
factors could necessitate the recording of additional liabilities which could be
material. The impact of such future events cannot be estimated at the current
time.

Where the Company believes that both the amount of a particular environmental
liability and the timing of the payments are reliably determinable, the cost in
current dollars is discounted to present value assuming inflation of 3.6% and a
risk free discount rate of 


<PAGE>   18
26

                                                                         LAIDLAW
                                                          ENVIRONMENTAL SERVICES



Notes to Consolidated Financial Statements


8.5%. Had the Company not discounted any portion of its liability, the amount
recorded would have been increased by approximately $9 million at August 31,
1997 (1996 - $9 million).

The majority of the Company's active landfill sites have estimated remaining
lives ranging from two to more than 100 years based upon current site plans and
anticipated annual volumes of waste. As of August 31, 1997, the Company
estimates that during this remaining site life, it will provide for an
additional $97 million (1996 - $72 million) of closure and post-closure costs,
including accretion for the discount recognized to date.

Anticipated payments of environmental liabilities for each of the next five
years and thereafter are as follows ($ in thousands):

<TABLE>
<CAPTION>
Year ending August 31
- --------------------------------------------------------
<S>                                            <C>      
1998                                           $  27,376
1999                                              32,365
2000                                              22,735
2001                                              15,972
2002                                              10,926
Thereafter                                       170,687
                                               ---------
    Total                                      $ 280,061
                                               =========
</TABLE>

In conjunction with the acquisitions of certain facilities, the Company has
obtained varying amounts and types of indemnification from potential
environmental liabilities existing at the time of acquisition. Such indemnities
typically cover all or a portion of the costs associated with the remediation of
pre-existing environmental liabilities, and may be available for a limited
period of time.

Financial Assurance Obligations:
As of August 31, 1997, the Company was obligated to provide financial assurances
to the applicable regulatory authorities, totalling approximately $450 million,
in connection with the closure and post-closure requirements of certain facility
operating permits. The majority of these financial assurances have been provided
by Laidlaw at August 31, 1997. The Company is obligated to assume these
financial assurances from Laidlaw during fiscal 1998. The Company intends to
provide the required financial assurances through a combination of letters of
credit and insurance policies.

Legal Proceedings:
The consolidated federal income tax returns of Laidlaw Transportation, Inc. and
its U.S. subsidiaries (collectively "LTI") (which until May 15, 1997, included
certain of the subsidiaries of the Company) for the fiscal years ended August
31, 1986, 1987 and 1988, have been under audit by the Internal Revenue Service.
In March 1994, LTI received a statutory notice of deficiency proposing that LTI
pay additional taxes relating to disallowed deductions in those income tax
returns. The principal issue involved relates to the timing and the
deductibility for tax purposes of interest attributable to loans owing to
related foreign persons. LTI has petitioned the United States Tax Court
(captioned as Laidlaw Transportation, Inc. & Subsidiaries et al v. Commissioner
of Internal Revenue, Docket Nos. 9361-94 and 9362-94) for a redetermination of
claimed deficiencies of approximately $49.6 million (plus interest of
approximately $80.3 million as of August 31, 1997).

In October 1997, LTI received a statutory notice of deficiency proposing that
LTI pay additional taxes of approximately $143.5 million (plus interest of
approximately $121 million as of August 31, 1997) relating to disallowed
deductions in federal income tax returns for the fiscal years ended August 31,
1989, 1990 and 1991, based on the same issues. LTI intends to vigorously contest
these claimed deficiencies. The Company anticipates that the Internal Revenue
Service will propose adjustments for the same issue in subsequent taxation
years.

Pursuant to the Stock Purchase Agreement referred to in Note 1, Laidlaw and
Laidlaw Transportation, Inc. agreed to be responsible for any tax liabilities,
including the costs to defend the subsidiaries, resulting from these matters.
The Company believes that the ultimate disposition of these issues will not have
a materially adverse effect upon the Company's consolidated financial position
or results of operations.



NOTE 7 - STOCKHOLDERS' EQUITY
Prior to May 15, 1997, the Company's total stockholders' equity consisted of the
intercompany investment by Laidlaw. The 120 million shares of common stock
received by Laidlaw to consummate the Acquisition described in Note 1, are
deemed, for accounting purposes, to have been issued and outstanding in all
prior periods presented in these consolidated financial statements. 

<PAGE>   19


27
                                                                         LAIDLAW
                                                          ENVIRONMENTAL SERVICES



Notes to Consolidated Financial Statements

Authorized and issued capital stock:
Since the former Rollins is the continuing legal entity, its authorized and
issued capital stock constitutes that of the Company.

The Company is authorized to issue 350 million shares of its $1 par value common
stock and one million shares of its $1 par value preferred stock. The terms and
conditions of each issue of preferred stock are determined by the Board of
Directors.

At August 31, 1997, the Company had issued and outstanding 180,435,311 shares of
its $1 par value common stock. For accounting purposes, 120 million of these
shares were deemed outstanding in all periods prior to the Closing and
60,375,811 were deemed to have been issued on May 15, 1997, at $2.75 per share,
as consideration ($166,034,000) for the acquisition of the former Rollins by the
Company.

No preferred stock has been issued.

Each share of common stock outstanding includes one common stock purchase right
(a "Right") which is non-detachable and non-exercisable until certain defined
events occur, including certain tender offers or the acquisition by a person or
group of affiliated or associated persons of 15% or more of the Company's common
stock. Upon the occurrence of certain defined events, the Right entitles the
holder to purchase additional stock of the Company or stock of an acquiring
company at a 50% discount. The Right expires on June 30, 1999, unless earlier
redeemed by the Company at a price of $.01 per Right.


NOTE 8 - STOCK OPTION PLANS
The Company has the following stock option plans:
1. The 1982 Stock Option Plan of the former Rollins Environmental Services, Inc.
2. The 1993 Stock Option Plan of the former Rollins Environmental Services, Inc.
3. The 1997 Directors Stock Option Plan
4. The 1997 Stock Option Plan

All outstanding employee stock options granted by the former Rollins were fully
vested on May 15, 1997, in accordance with the terms of the Stock Purchase
Agreement referred to in Note 1.

Option activity is as follows:

<TABLE>
<CAPTION>
August 31                                                         1997
- ---------------------------------------------------------------------------
<S>                                                         <C>      
Number of options
   Outstanding at May 15, 1997                                    1,106,555
   Granted                                                        1,187,500
   Exercised                                                        (59,500)
   Expired or canceled                                             (194,510)
                                                                 ----------
Outstanding at end of year                                        2,040,045
                                                                 ==========

August 31                                                           1997
- ---------------------------------------------------------------------------
   Options available for grant                                    5,352,500
   Options exercisable                                              852,545
Per share prices
   Options granted                                                    $3.19
   Options exercised                                        $2.25 to $ 2.88
   Options outstanding                                      $2.63 to $12.25
</TABLE>

Effective July 9, 1997, the directors of the Company set aside six million
shares of its $1 par value common stock for issuance under a 1997 stock option
plan. All options under this plan are for a term of ten years from the date of
grant and become exercisable with respect to 20% of the total number of shares
subject to the option, one year after the date of grant, and with respect to an
additional 20% at the end of each 12 month period thereafter on a cumulative
basis during the succeeding four years. The plan provides for the granting of
stock options to certain senior employees and officers of the Company at the
discretion of the Board of Directors. The plan will be submitted to the
Company's stockholders for approval at the next annual meeting. All options are
subject to certain conditions of service.




<PAGE>   20
28

                                                                         LAIDLAW
                                                          ENVIRONMENTAL SERVICES



Notes to Consolidated Financial Statements

Effective July 9, 1997, the directors of the Company set aside 540,000 shares of
its $1 par value common stock for issuance under a 1997 directors stock option
plan. All options under this plan are for a term of ten years from the date of
grant and become exercisable with respect to 20% of the total number of shares
subject to the option, one year after the date of grant, and with respect to an
additional 20% at the end of each 12 month period thereafter on a cumulative
basis during the succeeding four years. The plan will be submitted to the
Company's stockholders for approval at the next annual meeting. All options are
subject to certain conditions of service.

On July 9, 1997, the Board of Directors granted 1,097,500 shares from the stock
option plan and 90,000 shares from the directors stock option plan, both at an
exercise price of $3.188, subject to stockholder approval of the plans.

The Company applies Accounting Principles Board ("APB") 25 in accounting for its
stock option plans. Accordingly, no compensation cost has been recognized for
the plans in fiscal 1997 or 1996. Statement of Financial Accounting Standards
("SFAS") No. 123, "Accounting for Stock-Based Compensation," defines a fair
value method of accounting for stock options and other equity instruments. Under
the fair value method, compensation cost is measured at the grant date based on
the fair value of the award and is recognized over the service period, which is
usually the vesting, or exercise period.

During fiscal year 1996, the Accounting Acquirer had no stock option plan.
Accordingly, no pro forma disclosures are required. As a result of the exercise
terms of the Company's 1997 stock option plan effective July 9, 1997, pro forma
disclosure is immaterial for fiscal year 1997.


NOTE 9 - RESTRUCTURING CHARGE
The integration related to the Acquisition described in Note 1 resulted in the
closure and consolidation of certain operations formerly owned by Rollins or by
Old LESI. Such actions are expected to produce substantial cost savings.

With respect to the Old LESI operations, the Company recorded a one-time charge
of $331.7 million ($200 million after tax, or $1.52 per share) against income in
the quarter ended May 31, 1997, to reflect the closing of certain of the
operating facilities that had become redundant, and an impairment in the
carrying value of certain operating facilities due to lower expected future cash
flows, as a result of the Acquisition.


NOTE 10 - DISCONTINUED OPERATIONS
On May 1, 1997, in contemplation of the Acquisition described in Note 1, the
Company transferred, in a non-cash transaction, JTM Industries, Inc., its coal
combustion by-products management operations to Laidlaw. Accordingly, no gain or
loss was recognized on this transfer. These operations were retained by Laidlaw
and are not part of the Company's ongoing operations.

The Company has classified these operations as discontinued. Historically these
operations have been included in Laidlaw's Hazardous Waste Services segment for
financial reporting purposes.

Revenue for the discontinued operations for 1997, 1996 and 1995, was $41.5
million, $62.9 million and $43.6 million, respectively.


NOTE 11 - INCOME TAXES
The income tax benefit is comprised as follows ($ in thousands):

<TABLE>
<CAPTION>
Year ended August 31                                           1997
- ----------------------------------------------------------------------
<S>                                                          <C>       
Current:
   Federal                                                   $ (30,236)
   State                                                         1,000
   Foreign                                                      (2,064)
Deferred:
   Federal                                                     (87,086)
   State                                                       (12,440)
   Foreign                                                       8,037
                                                             ---------
     Income tax benefit                                      $(122,789)
                                                             =========
</TABLE>
<PAGE>   21
29

                                                                         LAIDLAW
                                                          ENVIRONMENTAL SERVICES



Notes to Consolidated Financial Statements


A reconciliation of the income tax benefit, calculated by applying the statutory
federal income tax rate to the loss before income taxes is as follows ($ in
thousands):


<TABLE>
<CAPTION>
Year ended August 31                                                 1997
- -------------------------------------------------------------------------
<S>                                                                  <C>  
Federal income tax benefit at statutory rate                         35.0%
State income tax benefit                                              5.2%
Other                                                                (0.1)%
                                                                     ----
   Income tax benefit                                                40.1%
                                                                     ====
</TABLE>

The tax effect of temporary differences which comprise the current and
non-current deferred income tax amounts shown on the balance sheet are as
follows ($ in thousands):

<TABLE>
<CAPTION>
August 31                                                   1997        1996
- -----------------------------------------------------------------------------
<S>                                                       <C>        <C>     
Deferred tax assets:
   Accrued liabilities                                    $122,051   $ 35,372
   Tax attribute carryovers                                 62,865     69,601
   Interest                                                 15,358         --
   Other                                                     7,016      1,858
                                                          -------------------
     Total gross deferred tax assets                       207,290    106,831
       Less: valuation allowance                            14,066         --
                                                          -------------------
Net deferred tax assets                                   $193,224   $106,831

Deferred tax liabilities:
   Excess of tax over book depreciation                   $223,732   $187,934
   Other                                                     6,255      5,882
                                                          -------------------
     Total gross deferred tax liabilities                  229,987    193,816
                                                          -------------------
Net deferred tax liability                                $ 36,763   $ 86,985
                                                          ===================
</TABLE>

The Company has net operating loss carryforwards for federal income taxes
expiring in the years 2008 to 2112 of $80.3 million. A valuation allowance of
$14.1 million has been recorded against $46.9 million of the loss carryforwards
which are subject to limitations of both Treasury Regulation 1.1502-21 and
Internal Revenue Code ("IRC") Section 382. Foreign net operating losses expiring
in the years 1999 to 2004 are $44.1 million. Interest carryovers of $27.1
million limited by IRC Section 163 (j) are available against federal tax without
expiration.


NOTE 12 - EARNINGS PER SHARE
Primary earnings per share amounts are computed based on the weighted average
number of shares actually outstanding. In 1997, the shares considered to be
common stock equivalents that would be outstanding, assuming the exercise of
dilutive stock options, have not been included as the effect of such inclusion
would be to increase earnings per share, and thus be anti-dilutive.
Additionally, fully diluted earnings per share amounts, which would include the
dilutive effect of the subordinated convertible debenture, have not been
included as the effect of such inclusion would be to increase earnings per
share, and thus be anti-dilutive.


NOTE 13 - RELATED PARTY TRANSACTIONS
Included in selling, general and administrative expenses are management fees
paid to Laidlaw in the amounts of $2.6 million, $4.6 million and $3.6 million
during 1997, 1996 and 1995, respectively.

Management fees have been allocated to the Company, prior to May 15, 1997, based
upon the Company's share of Laidlaw's consolidated revenue. Management fees are
charged by Laidlaw to each of its operating groups in order to recover its
general and administrative costs. The services provided by Laidlaw include
treasury, taxation and insurance.

Related party insurance transactions totalled $7.2 million, $7.2 million and
$7.7 million in 1997, 1996 and 1995, respectively.

Certain directors and officers of the Company are also directors and officers of
Laidlaw.
<PAGE>   22
30
                                                                         LAIDLAW
                                                          ENVIRONMENTAL SERVICES



Notes to Consolidated Financial Statements

NOTE 14 - SEGMENT AND GEOGRAPHIC INFORMATION
The Company's revenues and income are derived from one industry segment and
principally in the United States, which includes the collection, transportation,
processing, recovery and disposal of hazardous and industrial wastes. The
segment renders services to a variety of commercial, industrial, governmental
and residential customers.


NOTE 15 - RECENT ACCOUNTING DEVELOPMENTS
In October 1996, the American Institute of Certified Public Accountants issued
Statement of Position 96-1 "Environmental Remediation Liabilities" ("SOP 96-1")
for fiscal years beginning after December 15, 1996. SOP 96-1 provides that
environmental remediation liabilities should be accrued when the criteria of
SFAS No. 5, "Accounting for Contingencies" are met and it includes benchmarks to
aid in the determination of when environmental remediation liabilities should be
recognized. SOP 96-1 also provides guidance with respect to the measurement of
the liability and the display and disclosure of environmental remediation
liabilities in the financial statements. The Company believes that the adoption
of this SOP will not have a material impact on the Company's financial condition
or results of operations.

In February 1997, the Financial Accounting Standards Board ("FASB") issued SFAS
No. 128 "Earnings Per Share". This standard is effective for financial
statements issued for periods ending after December 15, 1997, and will be
adopted for the interim period ended February 28, 1998, with restatement of all
prior period earnings per share ("EPS") data presented. This statement requires
the presentation of basic and diluted EPS. Basic EPS excludes dilution and is
computed by dividing income available to common stockholders by the weighted
average number of common shares outstanding for the period. Diluted EPS is
computed similarly to fully diluted EPS under the existing rules. The Company
does not expect that SFAS No. 128 will have a material impact on the earnings
per share computation.


NOTE 16 - QUARTERLY FINANCIAL DATA - UNAUDITED

<TABLE>
<CAPTION>
($ in thousands)                               First       Second       Third*        Fourth       Total*
- ---------------------------------------------------------------------------------------------------------
<S>                                          <C>         <C>          <C>          <C>          <C>      
1997
Revenues                                     $ 172,565   $ 140,627    $ 155,330    $ 210,097    $ 678,619
Income (loss) from operations                   14,899       9,169     (316,760)      27,978     (264,714)
Income (loss) from continuing operations         3,588       1,750     (197,155)       8,365     (183,452)
Income (loss) from discontinued operations         703        (917)         234           --           20
Net income (loss)                                4,291         833     (196,921)       8,365     (183,432)
Earnings per share:
Continuing operations:
   Before restructuring                      $   0.030   $   0.015    $   0.022    $   0.046    $   0.120
   Restructuring charge                             --          --       (1.525)          --       (1.449)
                                             ------------------------------------------------------------
                                                 0.030       0.015       (1.503)       0.046       (1.329)
Discontinued operations                          0.006      (0.008)       0.002           --           --
                                             ------------------------------------------------------------
Net  income (loss) per share                 $   0.036   $   0.007    $  (1.501)   $   0.046    $  (1.329)
                                             ============================================================
1996
Revenues                                     $ 179,793   $ 150,362    $ 153,139    $ 169,679    $ 652,973
Income from operations                          18,636      11,987       13,217       13,479       57,319
Income from continuing operations                3,791         365          739        1,819        6,714
Income (loss) from discontinued operations         579        (378)         622          673        1,496
Net income (loss)                                4,370         (13)       1,361        2,492        8,210
Net income (loss) per share                  $   0.036   $  (0.000)   $   0.011    $   0.021    $   0.068
</TABLE>

* 1997 includes restructuring charge of $331.7 million ($200 million net of tax)
Results for the quarters include the results of operations of acquired companies
for the periods in which they were owned by the Company.



<PAGE>   23
31

                                                                         Laidlaw
                                                          Environmental Services


Report of Independent Accounts


To the Stockholders and Directors
Laidlaw Environmental Services, Inc.

We have audited the accompanying consolidated balance sheets of Laidlaw
Environmental Services, Inc. and Subsidiaries, as of August 31, 1997 and 1996,
and the related consolidated statements of income, cash flows, and changes in
stockholders' equity for each of the three years in the period ended August 31,
1997. These financial statements are the responsibility of the Company's
management. Our responsibility is to express an opinion on these financial
statements based on our audits.

We conducted our audit in accordance with generally accepted auditing standards.
Those standards require that we plan and perform the audit to obtain reasonable
assurance about whether the financial statements are free of material
misstatement. An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements. An audit also includes
assessing the accounting principles used and significant estimates made by
management, as well as evaluating the overall financial statement presentation.
We believe that our audit provides a reasonable basis for our opinion.

In our opinion, the financial statements referred to above present fairly, in
all material respects, the consolidated financial position of Laidlaw
Environmental Services, Inc. and Subsidiaries as of August 31, 1997 and 1996,
and the consolidated results of their operations and their cash flows for each
of the three years in the period ended August 31, 1997, in accordance with
generally accepted accounting principles.

As discussed in Note 2, the statement of cashflows has been revised for the
years ended August 31, 1996 and 1995.


Charlotte, North Carolina                         /s/ Coopers & Lybrand LLP
October 7, 1997

<PAGE>   24

COMMON STOCK AND DIVIDEND INFORMATION
The following table sets forth the reported high and low sales price information
for the common shares listed on the New York Stock Exchange and the Pacific
Exchange for the periods concurrent with that of the Accounting Acquirer:

<TABLE>
<CAPTION>
                             Stock Price
1996 Fiscal Year         High              Low
- -----------------------------------------------
<S>                     <C>              <C>  
First Quarter           $5.13            $3.00
Second Quarter          $3.25            $2.13
Third Quarter           $3.63            $2.25
Fourth Quarter          $4.13            $2.75

1997 Fiscal Year        High              Low
- ----------------------------------------------
First Quarter           $3.13            $1.88
Second Quarter          $3.13            $1.63
Third Quarter           $3.38            $2.63
Fourth Quarter          $4.63            $2.88
</TABLE>


As of October 7, 1997, Laidlaw Environmental Services, Inc. had approximately
22,200 holders of the common stock. Of that total, 6,234 were stockholders of
record.

Since September 1993, the Registrant has not declared nor paid any cash
dividends on its common stock.



<PAGE>   1


                      LAIDLAW ENVIRONMENTAL SERVICES, INC.
                                   EXHIBIT 21


The following list sets forth the subsidiaries of Laidlaw Environmental
Services, Inc. as of September 20, 1997. Parent subsidiary relations are
indicated by indentations. Unless otherwise indicated, 100% of the voting
securities of each subsidiary is owned by the indicated parent of such
subsidiary.


<TABLE>
<CAPTION>
                                                                                                        State of
                                                                                                     Incorporation
                                                                                               -----------------------
<S>                                                                                            <C>
Laidlaw Environmental Services, Inc.                                                                    Delaware
    LES, Inc.                                                                                           Delaware
         Laidlaw Environmental Services de Mexico, S.A. de C.V. (90%)                                   Delaware
         Laidlaw Environmental Services (Puerto Rico), Inc.                                             Delaware
         Laidlaw Environmental Services (Bridgeport), Inc.                                              Delaware
         Laidlaw Environmental Services (Deer Park), Inc.                                               Delaware
         Laidlaw Environmental Services (Baton Rouge), Inc.                                             Delaware
         Laidlaw Environmental Services (Plaquemine), Inc.                                              Delaware
         Laidlaw Environmental Services (Custom Transport), Inc.                                        Delaware
         Laidlaw Environmental Services (Los Angeles), Inc.                                             California
         Laidlaw Environmental Services (Tipton), Inc.                                                  Delaware
         Laidlaw Environmental Services (Gloucester County), Inc.                                       Delaware
         Laidlaw Environmental Services (Deer Trail), Inc.                                              Colorado
         Laidlaw Environmental Services (Mt. Pleasant), Inc.                                            Tennessee
         Laidlaw Environmental Services (Minneapolis), Inc.                                             Minnesota
               Laidlaw Environmental Services (Aragonite), Inc.                                         Delaware
         Laidlaw Environmental Services (Sussex), Inc.                                                  Delaware
         Laidlaw Environmental, Inc.                                                                    Delaware
         Laidlaw Environmental Services (US), Inc.                                                      Delaware
               Laidlaw Environmental Services (Lone and Grassy Mountain), Inc.                          Oklahoma
                    Laidlaw Environmental Services (Tulsa), Inc.                                        Oklahoma
                          Laidlaw Environmental Services (San Antonio), Inc.                            Texas
                          Laidlaw Environmental Services (Wichita), Inc.                                Kansas
                    USPCI of Mississippi, Inc. (50%)                                                    Mississippi
                    Laidlaw Environmental Services of Delaware, Inc.                                    Delaware
                         ECDC Environmental, L.C. (80%)                                                 Utah
               Laidlaw Environmental Services (Rosemount), Inc.                                         Minnesota
               Laidlaw Environmental Services (Sawyer), Inc.                                            Oklahoma
               Laidlaw Environmental Services (Tucker), Inc.                                            Georgia
                    Ninth Street Properties, Inc.                                                       Missouri
               Laidlaw Environmental Services (San Jose), Inc.                                          California
               Chemclear, Inc. of Los Angeles                                                           Delaware
               USPCI, Inc. of Georgia                                                                   Delaware
               McDuffie County Environmental Facility, Inc.                                             Delaware
               East Carbon Development Financial Partners, Inc.                                         Utah
               Laidlaw Environmental Services (Imperial Valley), Inc. (50%)                             California
               Laidlaw Environmental Services (Lokern), Inc. (23%)                                      California
               Laidlaw Environmental Services (North East), Inc.                                        New Hampshire
               Laidlaw Environmental Services (Recovery), Inc.                                          Louisiana
</TABLE>

                                       20

<PAGE>   2

<TABLE>
<CAPTION>
                                                                                                        State of
                                                                                                     Incorporation
                                                                                               -----------------------
<S>                                                                                            <C>
               Laidlaw Environmental Services (TES), Inc.                                               Texas
                    Corsan Trucking, Inc. (25%)                                                         Louisiana
               Laidlaw Environmental Services (TG), Inc.                                                Delaware
               Laidlaw Environmental Services (TOC), Inc.                                               South Carolina
               Laidlaw Environmental Services (TS), Inc.                                                Delaware
               Laidlaw Environmental Services (Thermal Treatment), Inc.                                 Delaware
               Corsan Trucking, Inc. (75%)                                                              Louisiana
               GSX Chemical Services of Ohio, Inc.                                                      Ohio
               LEMC, Inc.                                                                               Delaware
               Laidlaw Chemical Services, Inc.                                                          Massachusetts
               Laidlaw Environmental Services (Altair), Inc.                                            Texas
                    Laidlaw Environmental Services (FS), Inc. (13%)                                     Delaware
               Laidlaw Environmental Services (BDT), Inc.                                               New York
               Laidlaw Environmental Services (FS), Inc. (86%)                                          Delaware
               Laidlaw Environmental Services (GS), Inc.                                                Tennessee
               Laidlaw Environmental Services (Clive), Inc.                                             Oklahoma
               Laidlaw Environmental Services (WT), Inc.                                                Ohio
               Laidlaw OSCO Holdings, Inc.                                                              Delaware
                    Laidlaw Environmental Services of Nashville, Inc.                                   Tennessee
                    OSCO Treatment Systems of Mississippi, Inc. (50%)                                   Tennessee
                    Bryson Industrial Services, Inc.                                                    South Carolina
               Laidlaw Environmental Services of Bartow, Inc.                                           Florida
               Laidlaw Environmental Services of California, Inc.                                       California
                    Laidlaw Environmental Services (Lokern), Inc. (77%)                                 California
                    Laidlaw Environmental Services (Imperial Valley), Inc. (50%)                        California
               Laidlaw Environmental Services of Chattanooga, Inc.                                      Tennessee
               Laidlaw Environmental Services of Illinois, Inc.                                         Illinois
               Laidlaw Environmental Services of South Carolina, Inc.                                   South Carolina
               Laidlaw Environmental Services of White Castle, Inc.                                     Colorado
         Laidlaw Environmental Services (Canada) Ltd.                                                   Canada
               Laidlaw Environmental Services Ltd.                                                      Ontario
                  Laidlaw Environmental Services (B.C.) Inc.                                            Canada
                      I.W.M. Disposal Inc.                                                              British Columbia
                 Laidlaw Environmental Services (Sarnia) Ltd.                                           Ontario
                      1197296 Ontario Inc.                                                              Ontario
                 Laidlaw Environmental Services (Quebec) Ltd.                                           Quebec
                      Laidlaw Environmental Services (Mercier) Ltd.                                     Quebec
                      Les Entreprises D'Incineration Industrielle Tricil Inc.                           Quebec
                 Laidlaw Environmental Services (Ryley) Ltd.                                            Alberta
                 Laidlaw Environmental Services (Atlantic) Limited                                      Nova Scotia
                 Laidlaw Environmental Services (Guelph), Inc.                                          Ontario
</TABLE>

                                       21


<PAGE>   1

                                   EXHIBIT 23


                       CONSENT OF INDEPENDENT ACCOUNTANTS



We consent to the incorporation by reference in the registration statement of
Laidlaw Environmental Services, Inc. on Form S-8 (July 9, 1997) of our report,
which includes an explanatory paragraph relating to the revised statement of
cash flows for the years ended August 31, 1996 and 1995, dated October 7, 1997
on our audits of the consolidated financial statements and financial statement
schedule of Laidlaw Environmental Services, Inc. as of August 31, 1997 and 1996,
and for each of the three years in the period ended August 31, 1997, which
report is included (or incorporated by reference) in this Annual Report on Form
10-K


                                            COOPERS & LYBRAND L.L.P.

Charlotte, North Carolina
October 27, 1997






                                       22



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