ECOLAB INC. — Director's Dealing 2007

Dec 8, 2007

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: ECOLAB INC (ECL)
CIK: 0000031462
Period of Report: 2007-12-05

Reporting Person: MILLER JAMES A (EVP - Institutional Sector NA)

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2007-12-05	Employee Stock Option (Right to Buy)	$49.42	A	53800	Acquired	2017-12-05	Common Stock (53800)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	5057.362	Direct
Common Stock	927.801	Indirect

Footnotes

F1: Includes 6.674 shares acquired on 01/19/07, 6.774 shares acquired on April 19, 2007, 6.791 shares acquired on July 19, 2007 and 6.418 shares acquired by reporting person on October 18, 2007 by dividend reinvestment under the Dividend Reinvestment Plan for shareholders of Ecolab sponsored by Computershare Trust Company, Inc.

F2: Number of UNITS in the Ecolab Stock Fund of the Ecolab Savings Plan (401(k) Plan) as of October 31, 2007. Includes 123.135 UNITS acquired since the reporting person's last report. (The 927.801 UNITS are the equivalent of approximtely 1,732 shares of the issuer's Common Stock.)

F3: The option will be 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 shares on the third anniversary of the date of grant; provided, however, that if a Change in Control (as that term is defined in the 2005 Ecolab Inc. Stock Incentive Plan) will occur, then the option, if it has been outstanding for at least six months from the date of grant, will become immediately exercisable in full.