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 * Monica Laura L.   2. Issuer Name and Ticker or Trading Symbol American Water Works Company, Inc. [AWK] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) SVP, Corp. Communications (Last) (First) (Middle) 1025 LAUREL OAK ROAD 3. Date of Earliest Transaction (Month/Day/Year) 02/19/2010 (Street) VOORHEES, NJ 08043 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 02/19/2010 02/19/2010 A   1,990 (1) A $ 0 11,712 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

Employee Stock Option (right to buy)

$ 21.5

02/19/2010

02/19/2010

A

15,140 (2)

01/01/2011

12/31/2014

Common Stock

15,140

$ 0

58,704

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Monica Laura L. 1025 LAUREL OAK ROAD VOORHEES, NJ 08043			SVP, Corp. Communications

Signatures

/s/ Karen K. Pettiford-Wilson by Power of Attorney previously filed		02/23/2010
**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)	Represents the earned portion of performance-based restricted stock units awarded in connection with the Issuer's initial public offering. The number of restricted stock units earned was determined based upon a comparison of (a) the sum of American Water's actual audited net income for 2008 (as adjusted) and American Water's actual audited net income for 2009 (as adjusted) to (b) the sum of American Water's target net income for 2008 (as adjusted) and American Water's target net income for 2009 (as adjusted) at the time of the initial public offering. The number of restricted stock units earned equaled 43.13% of the units initially granted (which would have been fully earned if maximum performance metrics were achieved) and was based on the amount referenced in (a) above equaling 93.46% of the amount referenced in (b) above. The earned restricted stock units will vest on January 1, 2011.
(2)	Represents the earned portion of performance-based nonqualified stock options awarded in connection with the Issuer's initial public offering. The number of shares underlying the earned portion of the nonqualified stock options equaled 43.13% of the shares underlying the nonqualified stock options initially granted and was determined based upon the formula described in footnote 1 above.

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