ECOLAB INC. — Director's Dealing 2010

May 12, 2010

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: ECOLAB INC (ECL)
CIK: 0000031462
Period of Report: 2010-05-10

Reporting Person: LEVIN JERRY W (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2010-05-10	Common Stock	S	45000	$48.6417	Disposed	45006.81	Direct

Footnotes

F1: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $48.51 to $48.70, inclusive. The reporting person undertakes to provide to Ecolab Inc., any security holder of Ecolab Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (1) to this Form 4.