<PAGE>
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
SCHEDULE 13G/A
(AMENDMENT NO. 4)
Under the Securities Exchange Act of 1934
HACH COMPANY
-------------------------
(Name of Issuer)
COMMON STOCK
-----------------------------
(Title of class of securities)
404504 10 2
-----------------------------
(CUSIP Number)
Check the following box if a fee is being paid with this statement: / /
Page 1 of 6 Pages
<PAGE>
Page 2 of 6 Pages
CUSIP NO. 404504 10 2
- --------------------------------------------------------------------------------
(1) Names of Reporting Person Hach Company Employee
S.S. or I.R.S. Identifica- Stock Ownership Plan and
tion Nos. of Above Person Trust
F.E.I.N. 84-1126463
- -------------------------------------------------------------------------------
(2) Check the appropriate Box (a)
if a Member of a Group -----------------
(b)
- --------------------------------------------------------------------------------
(3) SEC Use Only
- --------------------------------------------------------------------------------
(4) Citizenship or Place of United States of America
Organization
- --------------------------------------------------------------------------------
Number of Shares (5) Sole Voting Power
Beneficially Owned -0-
by Each Reporting ---------------------------------------
Person With (6) Shared Voting -0-
---------------------------------------
(7) Sole Dispositive 677,633
---------------------------------------
(8) Shared Dispositive -0-
Power
- --------------------------------------------------------------------------------
(9) Aggregate Amount Beneficially 677,633
Owned by Each Reporting Person
- --------------------------------------------------------------------------------
(10) Check if the Aggregate Amount
in Row (9) Excludes Certain Shares
- --------------------------------------------------------------------------------
(11) Percent of Class Represented
by Amount in Row (9) 5.95%
- --------------------------------------------------------------------------------
(12) Type of Reporting Person EP
- --------------------------------------------------------------------------------
<PAGE>
Page 3 of 6 Pages
SCHEDULE 13G
(AMENDMENT NO. 4)
ITEM 1.
(a) Name of Issuer: Hach Company
(b) Address of Issuer's Principal Executive Office:
5600 Lindbergh Drive
Loveland, Colorado 80537
ITEM 2.
(a) Name of Persons Filing: Hach Company Employee Stock Ownership Plan
and Trust (referred to herein as the
"Reporting Person" or the "Plan")
(b) Address of Principal Business Office or, if none, Residence:
5600 Lindbergh Drive
Loveland, Colorado
(c) Citizenship: United States of America
(d) Title of Class of Securities: Common Stock
(e) CUSIP Number: 404504 10 2
ITEM 3. If this statement is filed pursuant to Rule 13d-1(b), or 13d-2(b),
check whether the person filing is a:
(a) _____Broker or Dealer registered under Section 15 of the Act;
(b) _____Bank as defined in Section 3(a)(6) of the Act;
(c) _____Insurance Company as defined in Section 3(a)(19) of the Act;
(d) _____Investment Company registered under Section 8 of the
Investment Company Act;
<PAGE>
Page 4 of 6 Pages
(e) _____Investment Adviser registered under Section 203 of the
Investment Advisers Act of 1940;
(f) __X__Employee Benefit Plan, Pension Fund which is subject to the
provisions of the Employee Retirement Income Security
Act of 1974 or Endowment Fund; see Rule 13d-
1(b)(1)(ii)(F);
(g) _____Parent Holding Company, in accordance with Rule 13d-
1(b)(ii)(G);
(h) _____Group, in accordance with Rule 13d-1(b)(1)(ii)(H).
ITEM 4. OWNERSHIP.
(a) Amount Beneficially Owned:
677,633
(b) Percent of Class
5.95%
(c) The number of shares which the Reporting Person owns and the nature
of the Reporting Person's beneficial ownership is as follows:
(i) Sole power to vote or direct the vote: 0
(ii) Shared power to vote or direct the vote: 0*
(iii) Sole power to dispose or direct the disposition: 0
(iv) Shared power to dispose or direct the disposition: 0
* Excluded from the number of shares which the Plan has the power of vote
are 677,633 shares which are allocated to the accounts of individual account
holders of the Plan, and as to which the individual account holders have the
right to vote. The Plan's Trustees have only contingent voting rights with
respect to these shares, which are imposed by ERISA. On December 31, 1995, no
matters were submitted to the vote of shareholders, and therefore no account
beneficiaries had failed to exercise their voting rights or otherwise triggered
the contingent voting obligations imposed on the Trustees of the Plan 1 by
ERISA.
<PAGE>
Page 5 of 6 Pages
ITEM 5. OWNERSHIP OF FIVE PERCENT OR LESS OF A CLASS.
Not applicable.
ITEM 6. OWNERSHIP OF MORE THAN FIVE PERCENT ON BEHALF OF ANOTHER PERSON.
Dividends and proceeds from the sales of any shares owned are allocated to
the accounts of the beneficiaries of the Plan on a regular basis throughout the
year.
ITEM 7. IDENTIFICATION AND CLASSIFICATION OF THE SUBSIDIARY WHICH ACQUIRED THE
SECURITY BEING REPORTED ON BY THE PARENT HOLDING COMPANY.
Not applicable.
ITEM 8. IDENTIFICATION AND CLASSIFICATION OF MEMBERS OF THE GROUP.
Not applicable.
ITEM 9. NOTICE OF DISSOLUTION OF GROUP.
Not applicable.
ITEM 10. CERTIFICATION.
By signing below we certify that, to the best of our knowledge and belief,
the securities referred to above were acquired in the ordinary course of
business and were not acquired for the purpose of and do not have the effect of
changing or influencing the control of the issuer of such securities and were
not acquired in connection with or as a participant in any transaction having
such purposes or effect.
<PAGE>
Page 6 of 6 Pages
SIGNATURES
After reasonable inquiry and to the best of our knowledge and belief, we
certify that the information set forth in this Statement is true, complete and
correct.
HACH COMPANY EMPLOYEE STOCK
OWNERSHIP PLAN AND TRUST
BY:
/s/ Loel J. Sirovy
-------------------------------------
Loel J. Sirovy, Co-Trustee
/s/ Randall A. Peterson
-------------------------------------
Randall A. Peterson
Co-Trustee
/s/ Gary R. Dreher
-------------------------------------
Gary R. Dreher, Co-Trustee
February 13, 1996