X0304 4 2011-12-31 0 0000031462 ECOLAB INC ECL 0001189430 LEVIN JERRY W J. W. LEVIN PARTNERS, LLC 9 WEST 57TH STREET, 26TH FLOOR NEW YORK NY 10019 1 0 0 0 Common Stock 2011-12-31 4 A 0 183.84 0.00 A 36435.65 D Includes 88.15 shares acquired pursuant to a dividend reinvestment feature of the Ecolab Inc. 2001 Non-Employee Director Stock Option and Deferred Compensation Plan. /s/David F. Duvick, Attorney-in-Fact for Jerry Levin 2012-01-04