SECURITIES AND EXCHANGE COMMISSION
                        WASHINGTON, D.C. 20549

                              FORM 10-K/A
                            AMENDMENT NO. 1
                   FOR ANNUAL AND TRANSITION REPORTS
                PURSUANT TO SECTIONS 13 OR 15(d) OF THE
                    SECURITIES EXCHANGE ACT OF 1934

(Mark One)
[X]  ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE
     ACT OF 1934 FOR THE FISCAL YEAR ENDED DECEMBER 31, 2003 OR

[ ]  TRANSITION  REPORT  PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES
     EXCHANGE ACT OF 1934 FOR THE TRANSITION PERIOD FROM ___ TO ___

 COMMISSION         REGISTRANT, STATE OF INCORPORATION         IRS EMPLOYER
 FILE NUMBER           ADDRESS AND TELEPHONE NUMBER         IDENTIFICATION NO.
------------- --------------------------------------------- -------------------
  333-47647           American States Water Company              95-4676679
                        (Incorporated in California)
              630 East Foothill Boulevard, San Dimas 91773
                             (909) 394-3600

  000-01121          Southern California Water Company           95-1243678
                         (Incorporated in California)
              630 East Foothill Boulevard, San Dimas 91773
                             (909) 394-3600

        SECURITIES REGISTERED PURSUANT TO SECTION 12(B) OF THE ACT:

         Title of Each Class          Name of Each Exchange on Which Registered
American States Water Company Common
               Shares
                                               New York Stock Exchange
     Rights to Purchase Junior
   Participating Preferred Stock

       SECURITIES REGISTERED PURSUANT TO SECTION 12(G) OF THE ACT: NONE

Indicate by check mark whether Registrant (1) has filed all reports required to
be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during
the preceding 12 months (or for such shorter period that Registrant was required
to file such reports), and (2) has been subject to such filing requirements for
the past 90 days.

             American States Water Company       Yes [X]  No [ ]
             Southern California Water Company   Yes [X]  No [ ]

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405
of Regulation S-K is not contained herein, and will not be contained, to the
best of Registrant's knowledge, in definitive proxy or information statements
incorporated by reference in Part III of this Form 10-K or any amendment to this
Form 10-K. [ ]

Indicate by check mark whether the Registrant is an accelerated filer (as
defined in Rule 12b-2 of the Act.).

              American States Water Company       Yes [X]  No [ ]
              Southern California Water Company   Yes [ ]  No [X]

          The aggregate market value of the total voting common stock held by
non-affiliates of American States Water Company was approximately $415,019,000
on June 30, 2003. The closing price per Common Share on June 30, 2003, as quoted
in the Western Edition of THE WALL STREET JOURNAL, was $27.30. As of June 30,
003, the number of Common Shares of American States Water Company, outstanding
was 15,202,152. As of that same date, American States Water Company owned all
110 outstanding Common Shares of Southern California Water Company. The
aggregate market value of the total voting stock held by non-affiliates of
Southern California Water Company was zero on June 30, 2003.




DOCUMENTS INCORPORATED BY REFERENCE:
Portions of the Proxy Statement of American States Water Company has been filed
with the Securities and Exchange Commission as to Part III, Item Nos. 10, 11,
12, 13 and 14, in each case as specifically referenced herein.





                        AMERICAN STATES WATER COMPANY
                                     AND
                      SOUTHERN CALIFORNIA WATER COMPANY

                                 FORM 10-K/A
                               AMENDMENT NO. 1

                                    INDEX


PART I

Item 1:    Not applicable in this Amendment No. 1
Item 2:    Not applicable in this Amendment No. 1
Item 3:    Not applicable in this Amendment No. 1
Item 4:    Not applicable in this Amendment No. 1

PART II

Item 5:    Not applicable in this Amendment No. 1
Item 6:    Not applicable in this Amendment No. 1
Item 7:    Not applicable in this Amendment No. 1
Item 7A:   Not applicable in this Amendment No. 1
Item 8:    Not applicable in this Amendment No. 1
Item 9:    Not applicable in this Amendment No. 1
Item 9A    Not applicable in this Amendment No. 1

PART III

Item 10:   Not applicable in this Amendment No. 1
Item 11:   Not applicable in this Amendment No. 1
Item 12:   Not applicable in this Amendment No. 1
Item 13:   Not applicable in this Amendment No. 1
Item 14:   Not applicable in this Amendment No. 1
Item 15:   Exhibits

           Signature(s)





                               PART III


ITEM 15. EXHIBITS

3.1      By-Laws of American States Water Company incorporated herein by
         reference to Registrant's Form 8-K, dated November 2, 1998.

3.2      By-laws of Southern California Water Company incorporated by reference
         to Registrant's Form 10-Q with respect to the quarter ended June 30,
         2001.

3.3      Amended and Restated  Articles of  Incorporation  of American  States
         Water Company, as amended. (1)

3.4      Restated Articles of Incorporation of Southern California Water Company
         incorporated herein by reference to Southern California Water Company's
         Form 8-K, dated January 20, 1999.

4.1      Amended and Restated Rights Agreement, dated January 25, 1999, by and
         between American States Water Company and ChaseMellon Shareholder
         Services, L.L.C., as Rights Agent incorporated by reference to
         Registrant's Form 10-K for the year ended December 31, 1998.

4.2      Indenture, dated September 1, 1993 between Southern California Water
         Company and Chemical Trust Company of California incorporated herein by
         reference to Registrant's Form 8-K.

10.1     Agreement of Merger dated as of June 25, 1998 by and among Southern
         California Water Company, SCW Acquisition Corp. and American States
         Water Company incorporated herein by reference to Registrant's Form
         8-K, dated July 1, 1998.

10.2     Deferred Compensation Plan for Directors and Executives incorporated
         herein by reference to Registrant's Registration Statement on Form S-2,
         Registration No.
         33-5151. (2)

10.3     Second Sublease dated October 5, 1984 between Southern California Water
         Company and Three Valleys Municipal Water District incorporated herein
         by reference to Registrant's Registration Statement on Form S-2,
         Registration No. 33-5151.

10.4     Note Agreement dated as of May 15, 1991 between Southern California
         Water Company and Transamerica Occidental Life Insurance Company
         incorporated herein by reference to Registrant's Form 10-Q with respect
         to the quarter ended June 30, 1991.

10.5     Schedule of omitted Note Agreements, dated May 15, 1991, between
         Southern California Water Company and Transamerica Annuity Life
         Insurance Company, and Southern California Water Company and First
         Colony Life Insurance Company incorporated herein by reference to
         Registrant's Form 10-Q with respect to the quarter ended June 30, 1991.

10.6     Loan Agreement between California Pollution Control Financing Authority
         and Southern California Water Company, dated as of December 1, 1996
         incorporated by reference to Registrant's Form 10-K for the year ended
         December 31, 1998.

10.7     Agreement for Financing Capital Improvement dated as of June 2, 1992
         between Southern California Water Company and Three Valleys Municipal
         Water District incorporated herein by reference to Registrant's Form
         10-K with respect to the year ended December 31, 1992.

10.8     Water Supply Agreement dated as of June 1, 1994 between Southern
         California Water Company and Central Coast Water Authority incorporated
         herein by reference to Registrant's Form 10-K with respect to the year
         ended December 31, 1994.

10.9     Amended and Restated Retirement Plan for Non-Employee Directors of
         American States Water Company, dated as of October 25, 1999,
         incorporated herein by reference to Registrant's Form 10-K with respect
         to the year ended December 31, 1999. (2)

10.10    Dividend Reinvestment and Common Share Purchase Plan incorporated
         herein by reference to American States Water Company Rule 424 (b) (3)
         filing dated October 27, 1999.

10.11    Amended and Restated Change in Control Agreements, dated as of October
         25, 1999, between American States Water Company, Southern California
         Water Company and certain executives incorporated herein by reference
         to Registrant's Form 10-K with respect to the year ended December 31,
         1999. (2)

10.12    Amended and Restated Change in Control Agreements, dated as of October
         25, 1999, between Southern California Water Company and certain
         executives incorporated by reference to Registrant's Form 10-K with
         respect to the year ended December 31, 1999. (2)

10.13    Southern  California Water Company Pension  Restoration Plan
         incorporated  herein by reference  to  Registrant's  Form 10-K with
         respect to the year ended  December 31, 1999. (2)

10.14    American  States  Water  Company  Annual  Incentive  Plan as amended
         April 29, 2002 incorporated  by reference  to  Registrant's  Form 10-Q
         for the quarter  ended March 31, 2002. (2)

10.15    American  States  Water  Company  amended  2000 Stock  Incentive  Plan
         incorporated herein by reference to  Registrant's  Form 10-Q for the
         quarter ended  September 30, 2003. (2)

10.16    Loan and Trust Agreement between The Industrial Development Authority
         of The County of Maricopa, Chaparral City Water Company and Bank One,
         Arizona, NA,, dated as of December 1, 1997 incorporated by reference to
         Registrant's Form 10-K with respect to the year ended December 31,
         2000.

10.17    Delivery Agreement between Central Arizona Water Conservation District
         and Chaparral City Water Company, dated as of December 6, 1984
         incorporated by reference to Registrant's Form 10-K with respect to the
         year ended December 31, 2000.

10.18    Repayment Contract between the United States Bureau of Reclamation and
         Chaparral City Water Company, dated as of December 6, 1984 for
         construction of a delivery and storage system to transport CAP water
         incorporated by reference to Registrant's Form 10-K with respect to the
         year ended December 31, 2000.

10.19    Energy Transaction Confirmation with Mirant Americas Energy Marketing,
         LP incorporated by reference to Registrant's Form 10-Q with respect to
         the quarter ended March 31, 2001.

10.20    Power Purchase Agreement in June 2001 between Southern California Water
         Company and Pinnacle West Capital Corporation incorporated by reference
         to Registrant's Form 10-Q with respect to the quarter ended June 30,
         2001.

10.21    Western Systems Power Pool Agreement incorporated by reference to
         Registrant's Form 10-Q with respect to the quarter ended June 30, 2001.

10.22    Automated Power Exchange Master Service and Participation Agreement
         incorporated by reference to Registrant's Form 10-K with respect to the
         year ended December 31, 2001.

10.23    American States Water Company  Three-Year  Dividend  Equivalent Right
         Certificate incorporated  by reference  to  Registrant's  Form 10-Q for
         the quarter  ended March 31, 2002. (2)





10.24    Power Purchase Agreement dated September 3, 2002 between Southern
         California Water Company and Pinnacle West Capital Corporation
         incorporated by reference to Registrant's Form 10-K for the year ended
         December 31, 2002.

10.25    Amendment to the Credit Agreement between American States Water Company
         dated June 6, 2002 with Wells Fargo Bank, N.A., as Administrative Agent
         incorporated by reference to Registrant's Form 10-K for the year ended
         December 31, 2003.

21.      Subsidiaries of Registrant (1)

23.      Consent of Independent Public Accountants incorporated herein by
         reference to Registrant's Form 10-K for the year ended December 31,
         2003.

31.1     Certification   of  Chief  Executive   Officer   pursuant  to  Section
         302  of  the Sarbanes-Oxley Act of 2002 (1)

31.2     Certification   of  Chief  Financial   Officer   pursuant  to  Section
         302  of  the Sarbanes-Oxley Act of 2002 (1)

32.1     Certification of Chief Executive Officer pursuant to Section 906 of the
         Sarbanes-Oxley Act of 2002 incorporated herein by reference to
         Registrant's Form 10-K for the year ended December 31, 2003.

32.2     Certification of Chief Financial Officer pursuant to Section 906 of the
         Sarbanes-Oxley Act of 2002 incorporated herein by reference to
         Registrant's Form 10-K for the year ended December 31, 2003.
---------------------
(1) Filed concurrently herewith
(2) Management contract or compensatory arrangement





                                 SIGNATURES

        Pursuant to the requirements of the Securities Exchange Act of 1934,
Registrant has duly caused this amendment to be signed on its behalf by the
undersigned, thereunto duly authorized.

                                            AMERICAN STATES WATER COMPANY
                                            and its subsidiary
                                            SOUTHERN CALIFORNIA WATER COMPANY


                                        By: /s/ McClellan Harris III
                                            -----------------------------------
                                            Senior Vice President-Finance,
                                            Chief Financial Officer, Treasurer
                                            and Secretary

                                      Date: April 28, 2004
                                            -----------------------------------