ECOLAB INC. — Director's Dealing 2010

Mar 3, 2010

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: ECOLAB INC (ECL)
CIK: 0000031462
Period of Report: 2010-03-01

Reporting Person: LUMPKINS ROBERT L (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2010-03-01	Common Stock	M	16000	$20.2344	Acquired	36820.60	Direct
2010-03-01	Common Stock	F	7672	$42.195	Disposed	29148.60	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2010-03-01	Stock Option (Right to Buy)	$20.2344	M	16000	Disposed	2010-05-12	Common Stock (16000)	Direct

Footnotes

F1: Reflects the reporting person's payment of the exercise price and withholding taxes for a stock option issued in accordance with Rule 16b-3 by delivering or withholding shares of Ecolab Common Stock.

F2: The exercise price for the stock option has been halved and the number of shares subject to the option doubled to reflect a 2-for-1 stock split paid June 6, 2003 subsequent to the original reporting of the option.