ECOLAB INC. — Director's Dealing 2011

May 3, 2011

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: ECOLAB INC (ECL)
CIK: 0000031462
Period of Report: 2011-05-01

Reporting Person: Berger Larry L (Senior VP & CTO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2011-05-01	Common Stock	F	437	$52.69	Disposed	2691	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	64.621	Indirect

Footnotes

F1: Reflects the reporting person's payment of minimum statutory tax obligations by withholding shares of Ecolab Common Stock incident to the vesting of a restricted stock award issued in accordance with Rule 16b-3.

F2: Number of UNITS in the Ecolab Stock Fund of the Ecolab Savings Plan (401(k) Plan) as of March 31, 2010. Includes 0.227 UNITS acquired since the reporting person's last report. (The 64.621 UNITS are the equivalent of approximtely 120 shares of the issuer's Common Stock.)