Ownership Submission
FORM 4
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
JOHNSON JOEL W
  2. Issuer Name and Ticker or Trading Symbol
ECOLAB INC [ECL]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
__X__ Director _____ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
(Last)
(First)
(Middle)
THE HORMEL FOUNDATION, 301 N. MAIN STREET
3. Date of Earliest Transaction (Month/Day/Year)
05/04/2007
(Street)

AUSTIN, MN 55912
4. If Amendment, Date Original Filed(Month/Day/Year)
6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)
2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code
(Instr. 8)
4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)
5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4)
6. Ownership Form: Direct (D) or Indirect (I)
(Instr. 4)
7. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V Amount (A) or (D) Price
Common Stock 05/04/2007   M   7,600 A $ 20 51,432.37 D  
Common Stock 05/04/2007   F(1)   3,542 D $ 42.905 47,890.37 D  
Common Stock 05/04/2007   M   3,682 A $ 17.745 51,572.37 D  
Common Stock 05/04/2007   F(1)   1,522 D $ 42.905 50,050.37 D  
Common Stock 05/04/2007   M   6,800 A $ 22.6525 56,850.37 D  
Common Stock 05/04/2007   F(1)   3,590 D $ 42.905 53,260.37 D  
Common Stock 05/04/2007   M   4,076 A $ 22.6525 57,336.37 D  
Common Stock 05/04/2007   F(1)   2,152 D $ 42.905 55,184.37 D  
Common Stock 05/04/2007   M   3,442 A $ 24.035 58,626.37 D  
Common Stock 05/04/2007   F(1)   1,928 D $ 42.905 56,698.37 D  
Common Stock 05/04/2007   M   7,400 A $ 24.8325 64,098.37 D  
Common Stock 05/04/2007   F(1)   4,282 D $ 42.905 59,863.05 (2) D  

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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 3)
2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code
(Instr. 8)
5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4, and 5)
6. Date Exercisable and Expiration Date
(Month/Day/Year)
7. Title and Amount of Underlying Securities
(Instr. 3 and 4)
8. Price of Derivative Security
(Instr. 5)
9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 4)
10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)
11. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Stock Option (Right to Buy) $ 42.905 05/04/2007   A   4,300   05/04/2007 05/04/2017 Common Stock 4,300 $ 0 4,300 D  
Stock Option (Right to Buy) $ 20 (3) 05/04/2007   M     7,600 (3) 05/11/2001 05/11/2011 Common Stock 7,600 (3) $ 0 0 D  
Stock Option (Right to Buy) $ 17.745 (3) 05/04/2007   M     3,682 (3) 11/01/2001 11/01/2011 Common Stock 3,682 (3) $ 0 0 D  
Stock Option (Right to Buy) $ 22.6525 (3) 05/04/2007   M     6,800 (3) 05/10/2002 05/10/2012 Common Stock 6,800 (3) $ 0 0 D  
Stock Option (Right to Buy) $ 22.6525 (3) 05/04/2007   M     4,076 (3) 05/10/2002 05/10/2012 Common Stock 4,076 (3) $ 0 0 D  
Stock Option (Right to Buy) $ 24.035 (3) 05/04/2007   M     3,442 (3) 11/01/2002 11/01/2012 Common Stock 3,442 (3) $ 0 0 D  
Stock Option (Right to Buy) $ 24.8325 (3) 05/04/2007   M     7,400 (3) 05/09/2003 05/09/2013 Common Stock 7,400 (3) $ 0 0 D  
Stock Option (Right to Buy) $ 42.905 05/04/2007   A   3,542   05/04/2007 05/11/2011 Common Stock 3,542 $ 0 3,542 D  
Stock Option (Right to Buy) $ 42.905 05/04/2007   A   1,522   05/04/2007 11/01/2011 Common Stock 1,522 $ 0 1,522 D  
Stock Option (Right to Buy) $ 42.905 05/04/2007   A   3,590   05/04/2007 05/10/2012 Common Stock 3,590 $ 0 3,590 D  
Stock Option (Right to Buy) $ 42.905 05/04/2007   A   2,152   05/04/2007 05/10/2012 Common Stock 2,152 $ 0 2,152 D  
Stock Option (Right to Buy) $ 42.905 05/04/2007   A   1,928   05/04/2007 11/01/2012 Common Stock 1,928 $ 0 1,928 D  
Stock Option (Right to Buy) $ 42.905 05/04/2007   A   4,282   05/04/2007 05/09/2013 Common Stock 4,282 $ 0 4,282 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
JOHNSON JOEL W
THE HORMEL FOUNDATION
301 N. MAIN STREET
AUSTIN, MN 55912
  X      

Signatures

 /s/ David F. Duvick, Attorney-in-Fact for Joel W. Johnson   05/08/2007
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) Reflects the reporting person's payment of the exercise price of the stock options issued in accordance with Rule 16b-3 in each case by delivering shares of Ecolab common stock.
(2) Includes 46.68 shares acquired by dividend reinvestment under the Dividend Reinvestment Plan for shareholders of Ecolab sponsored by Computershare Trust Company, Inc.
(3) The exercise price for the stock options has been halved and the number of shares subject to the options doubled to reflect a 2-for-1 stock split paid June 6, 2003 subsequent to the original reporting of the options.

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