ECOLAB INC. — Director's Dealing 2011

May 13, 2011

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: ECOLAB INC (ECL)
CIK: 0000031462
Period of Report: 2011-05-13

Reporting Person: Inchaustegui Roberto (EVP-Global Specialty Sector)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2011-05-13	Common Stock	S	1485	$52.61	Disposed	0	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	6.047	Indirect

Footnotes

F1: Number of UNITS in the Ecolab Stock Fund of the Ecolab Savings Plan (401(k) Plan) as of May 4, 2011. (The 6.047 UNITS are the equivalent of approximately 11 shares of the issuer's Common Stock.)