SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person* RWE Aqua Holdings GmbH (Last) (First) (Middle) OPERNPLATZ 1 (Street) ESSEN 2M 45128 (City) (State) (Zip)	2. Date of Event Requiring Statement (Month/Day/Year) 04/22/2008	3. Issuer Name and Ticker or Trading Symbol American Water Works Company, Inc. [ AWK ]
		4. Relationship of Reporting Person(s) to Issuer (Check all applicable) Director X 10% Owner Officer (give title below) Other (specify below)	5. If Amendment, Date of Original Filed (Month/Day/Year)
			6. Individual or Joint/Group Filing (Check Applicable Line) Form filed by One Reporting Person X Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Stock	160,000,000	D(1)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

1. Name and Address of Reporting Person* RWE Aqua Holdings GmbH (Last) (First) (Middle) OPERNPLATZ 1 (Street) ESSEN 2M 45128 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* RWE AKTIENGESELLSCHAFT (Last) (First) (Middle) OPERNPLATZ 1 (Street) ESSEN 2M 45128 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

Explanation of Responses:

1. RWE Aqua Holdings GmbH, a direct wholly-owned subsidiary of RWE Aktiengesellschaft, is the direct beneficial owner of these shares. RWE Aktiengesellschaft owns these shares through its ownership of RWE Aqua Holdings GmbH.

Remarks:

Exhibit 24.1: Power of Attorney of RWE Aqua Holdings GmbH Exhibit 24.2: Power of Attorney of RWE Aktiengesellschaft

	/s/ Christian Ring, by power of attorney, for RWE Aqua Holdings GmbH	04/22/2008
	/s/ Jens Gemmecke, by power of attorney, for RWE Aqua Holdings GmbH	04/22/2008
	/s/ Christian Ring, by power of attorney, for RWE Aktiengesellschaft	04/22/2008
	/s/ Jens Gemmecke, by power of attorney, for RWE Aktiengesellschaft	04/22/2008
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (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).
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