ECOLAB INC. — Director's Dealing 2005

May 9, 2005

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: ECOLAB INC (ECL)
CIK: 0000031462
Period of Report: 2005-05-06

Reporting Person: GRUNDHOFER JERRY A (Director)

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2005-05-06	Director Stock Option (Right to Buy)	$32.57	A	5600	Acquired	2015-05-06	Common Stock (5600)	Direct