ECOLAB INC. — Director's Dealing 2007

Oct 30, 2007

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: ECOLAB INC (ECL)
CIK: 0000031462
Period of Report: 2007-10-26

Reporting Person: Snedeker C William (EVP-Global Services Sector)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2007-10-26	Common Stock	M	40000	$24.34	Acquired	41106.725	Direct
2007-10-26	Common Stock	S	600	$47.01	Disposed	40506.725	Direct
2007-10-26	Common Stock	S	39400	$47.00	Disposed	1106.999	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2007-10-26	Employee Stock Option (Right to Buy)	$24.34	M	40000	Disposed	2012-12-05	Common Stock (40000)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	2659.475	Indirect

Footnotes

F1: Includes 0.068 shares acquired on 01/19/07, 0.070 shares acquired on April 19, 2007, 0.070 shares acquired on July 19, 2007 and 0.066 shares acquired by reporting person on October 18, 2007 under the Ecolab Dividend Reinvestment Plan.

F2: Number of UNITS owned by the reporting person in the Ecolab Stock Fund of the Ecolab Savings Plan (401(k) Plan) as of September 30, 2007. Includes 138.116 UNITS acquired since the reporting person's last report. (The 2,659.475 UNITS are equivalent to approximately 4,965 SHARES of the issuer's Common Stock.)

F3: Option granted under the Ecolab Inc. 2002 Stock Incentive Plan on December 5, 2002. The option became exercisable, on a cumulative basis, as to one-third of the option shares (excluding any fractional portion less than one share), on each of the first and second anniversaries of the date of grant and as to the remaining option shares on the third anniversary of the date of grant.