<PAGE>
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
SCHEDULE 13G
(AMENDMENT NO. 14)
UNDER THE SECURITIES EXCHANGE ACT OF 1934
HACH COMPANY
----------------------------
(Name of Issuer)
COMMON STOCK
----------------------------
(Title of class of securities)
404504 10 2
----------------------------
(CUSIP Number)
N/A
----------------------------
(Date of event which requires
filing of this statement)
Check the appropriate box to designate the rule pursuant to which this
Schedule is filed:
[ ] Rule 13d-1(b)
[ ] Rule 13d-1(c)
[x] Rule 13d-1(d)
<PAGE>
Page 2 of 6
CUSIP No. 404504 10 2
(1) Names of Reporting Person Kathryn C. Hach-Darrow
S.S. or I.R.S. Identifica- ###-##-####
tion Nos. of Above Person
(2) Check the appropriate Box if a Member of a Group (a) / /
Not Applicable (b) / /
(3) SEC Use Only
(4) Citizenship or Place of
Organization United States of America
Number of Shares (5) Sole Voting Power 4,426,208
Beneficially Owned
by Each Reporting (6) Shared Voting 120,782
Person With
(7) Sole Dispositive 4,426,208
(8) Shared Dispositive Power 120,782
(9) Aggregate Amount Beneficially
Owned by Each Reporting Person 4,546,990
(10) Check if the Aggregate Amount / /
in Row (9) Excludes Certain Shares
(11) Percent of Class Represented
by Amount in Row (9) 50.50%
(12) Type of Reporting Person IN
<PAGE>
Page 3 of 6
SCHEDULE 13G
(AMENDMENT NO. 14)
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: Kathryn C. Hach-Darrow
(b) Address of Principal Business Office or, if none,
Residence:
5600 Lindbergh Drive
Loveland, Colorado 80537
(c) Citizenship: United States of America
(d) Title of Class of Securities: Common Stock
(e) CUSIP Number: 404504 10 2
ITEM 3. Not Applicable
ITEM 4. OWNERSHIP.
(a) Amount Beneficially Owned:
4,546,990
(b) Percent of Class
50.50%
(c) The number of shares of Common Stock which Mrs. Kathryn C.
Hach-Darrow owns and the nature of her beneficial ownership is as follows:
(i) Sole power to vote or direct the vote:
4,426,208(1)
<PAGE>
Page 4 of 6
(ii) Shared power to vote or direct the vote:
120,782(2)
(iii) Sole Power to dispose or direct the disposition:
4,426,208(1)
(iv) Shared power to dispose or direct the disposition:
120,782(2)
(1) These shares consist of (a) 927,543 shares of Common Stock which
Mrs. Hach-Darrow owns individually and has the sole power to vote and dispose
of, (b) 1,987,250 shares of Common Stock which are held in three trusts created
by the late Clifford C. Hach (the "Hach Trusts")and which Mrs. Hach-Darrow has
the power as trustee to vote and dispose of, and (c) 1,511,415 shares of Common
Stock held by C&K Enterprises, Ltd.("C&K"), of which Mrs. Hach-Darrow, both
individually and as trustee under the marital trust established under her
deceased husband's estate, has the power to direct the vote and to direct the
disposition.
(2) These shares include 120,782 shares of Common Stock owned by the
Hach Scientific Foundation (the "Hach Foundation"), a charitable foundation.
Kathryn C. Hach-Darrow is president and a trustee of the Hach Foundation, and
she shares the voting and investment power with respect to such shares of Common
Stock.
Mrs. Hach-Darrow is also the beneficial owner of 4,541,647 shares of Class A
Common Stock, $1.00 par value, of the Issuer ("Class A Stock"), a class of
non-voting equity securities. These shares consist of (a) 927,550 shares of
Class A Stock which Mrs. Hach-Darrow owns individually and has the sole power
to vote and dispose of, (b) 1,981,900 shares of Class A Stock which are held
by the Hach Trusts, (c) 1,511,415 shares of Class A Stock held by C&K, and
(d) 120,782 shares of Class A Stock owned by the Hach Foundation. Neither the
Common Stock nor the Class A Stock will be convertible into another class of
common stock or any other security of the Issuer. However, the holders of
outstanding Class A Stock will be entitled to one vote per share of Class A
Stock on all matters presented to the stockholders of the Issuer
automatically (i) at any time when the number of outstanding shares of Common
Stock falls below 10% of the aggregate number of outstanding Common Stock and
Class A Stock; and (ii) upon resolution of the Board of Directors of the
Issuer if, as a result of the existence of the Class A Stock, either the
Common Stock or Class A Stock or both, are excluded from trading on The
NASDAQ Stock Market National Market System and other comparable quotation
systems then in use, and are excluded from trading by the New York Stock
Exchange, American Stock Exchange and all other principal national securities
exchanges then in use.
ITEM 5. OWNERSHIP OF FIVE PERCENT OR LESS OF A CLASS.
Not applicable.
<PAGE>
Page 5 of 6
ITEM 6. OWNERSHIP OF MORE THAN FIVE PERCENT ON BEHALF OF ANOTHER PERSON.
The stockholders of C&K, who are currently Mrs. Hach-Darrow and her
three children , Paul Hach, Bruce Hach and Mary Hach, as stockholders in C&K,
are entitled to share in the dividends and proceeds from the sale of the Hach
Company stock being held by C&K.
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.
Not applicable.
<PAGE>
Page 6 of 6
SIGNATURES
After reasonable inquiry and to the best of my knowledge and
belief, I certify that the information set forth in this Statement is true,
complete and correct.
/s/ Kathryn Hach-Darrow
------------------------------------------------
Kathryn C. Hach-Darrow
February 11, 1999