Exhibit (99)

CERTFICATIONS

OF

CHIEF EXECUTIVE OFFICER AND CHIEF FINANCIAL OFFICER

Pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, each of the undersigned officers of Ecolab Inc. does hereby certify that:

a)the Annual Report on Form 10-K of Ecolab Inc. for the year ended December 31, 2002 (the “Report”) fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

b)information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of Ecolab Inc.

Dated:  March 7, 2003	s/Allan L. Schuman
	Allan L. Schuman
	Chairman of the Board and Chief Executive Officer
Dated:  March 7, 2003	/s/Steven L. Fritze
	Steven L. Fritze
	Senior Vice President and Chief Financial Officer