UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                    FORM 8-K



                                 CURRENT REPORT
     PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934


Date of report (Date of earliest event reported):    December 23, 2004
                                                 -------------------------------


                         CALIFORNIA WATER SERVICE GROUP
             (Exact name of registrant as specified in its charter)


            Delaware                  1-13883                77-0448994
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(State or other jurisdiction        (Commission           (I.R.S. Employer
     of Incorporation)               File Number)        Identification No.)


    1720 North First Street, San Jose, CA.                  95112
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   (Address of principal executive offices)              (Zip Code)

Registrant's telephone number, including area code             1-408-367-8200
                                                   -----------------------------


                                 Not Applicable
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          (Former name or former address, if changed since last report)


Check  the  appropriate  box  below  if the  form  8-K  filing  is  intended  to
simultaneously  satisfy the filing obligation of the registrant under any of the
following provisions (see General Instruction A.2. below):

[ ]   Written  communications  pursuant to Rule 425 under the Securities Act (17
      CFR 230.425)

[ ]   Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR
      240.14a-12)

[ ]   Pre-commencement  communications  pursuant  to  Rule  14d-2(b)  under  the
      Exchange Act (17 CFR 240.14d-2(b))

[ ]   Pre-commencement  communications  pursuant  to  Rule  13e-4(c)  under  the
      Exchange Act (17 CFR 240.13e-4(c))




Item 1.01 Entry into a Material Definitive Agreement

The response to this Item is  incorporated  by reference to the response to Item
1.02 of this report.

Item 1.02 Termination of a Material Definitive Agreement

Effective  December 23, 2004,  the Company  entered  into two  unsecured  credit
facilities  with Bank of America,  N.A. The first agreement is for a $45 million
credit facility for California  Water Service Company (Cal Water),  a 100% owned
subsidiary of the registrant.  The second  agreement is for a $10 million credit
facility for  California  Water Service  Group (Group) and its other  wholly-own
subsidiaries. Interest under both agreements is variable based on margin spreads
against  either the bank's  prime rate or the  London  Inter-Bank  Offered  Rate
(LIBOR).  Both  agreements  require a  consecutive  30-day  out- of- debt period
during any 24 month consecutive period. In addition, the Cal Water and the Group
agreements require the borrowing balance to be below $10 million and $5 million,
respectively,  for a 30-day  consecutive  period  for any 12  month  consecutive
period.  Both  agreements  have a covenant  requiring debt as a percent of total
capitalization  to be less than 67%. The agreements  include usual and customary
covenants for credit facilities of this type,  including  specific use of funds,
reporting  requirements,  limitations  on other debts,  limitations on liens and
maintenance  of assets.  Repayment of  borrowings  under the  agreements  may be
accelerated  in the event of  failure  to make  payment  and  breach of  certain
covenants. The agreements terminate April 30, 2007.

These new agreements  terminate and replace two credit  facilities,  as amended,
both  dated  February  28,  2003.  At the  time of the  termination,  the  first
agreement  was for $45  million for  California  Water  Service  Company and the
second was for $10  million for  California  Water  Service  Group and its other
wholly-owned subsidiaries.  These terminated agreements would have expired April
30, 2005. No borrowings were outstanding under the terminated  agreements at the
time of their termination and no early termination penalties were incurred.  The
first credit facility had a letter of credit of $0.5 million outstanding at time
of termination, which was transferred to the new facility.

The primary purpose of the credit agreements is to provide short-term  financing
to meet seasonal needs of the business. In addition,  the facilities are used to
provide  short-term  financing for capital  expenditures and acquisitions  until
long-term financing is obtained.

The  foregoing  summary of the terms of the  agreements  does not  purport to be
complete  and is  qualified  in its  entirety  by  reference  to the  agreements
attached hereto as exhibits.

Item 2.03 Creation of a Direct Financial Obligation

The registrant  incorporates by reference the  information  submitted under Item
1.01 above with respect to entry into the credit  agreements.  As no  borrowings
have yet been made under the credit  agreement,  no  material  direct  financial
obligation has arisen or been created under either facility.

Item 9.01 Financial Statements and Exhibits.

The exhibit list is incorporated by reference to the Exhibit Index included with
this report.

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                                   SIGNATURES

         Pursuant to the requirement of the Securities Exchange Act of 1934, the
registrant  has duly  caused  this  report  to be  signed  on its  behalf by the
undersigned hereunto duly authorized.


                          CALIFORNIA WATER SERVICE GROUP
                                  (Registrant)



Date: February 8, 2005                By: /s/ Richard D. Nye
                                          ------------------
                                           Richard D. Nye
                                           Vice President,
                                           Chief Financial Officer and Treasurer



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                                  EXHIBIT INDEX

    Exhibit
     Number                           Description of Exhibits
     ------                           -----------------------

      10.1                 $10,000,000  Business Loan Agreement  between Bank of
                           America, N.A. and California Water Service Group, CWS
                           Utility  Services,  New Mexico Water Service Company,
                           Washington  Water Service  Company,  and Hawaii Water
                           Service Company, Inc dated December 23, 2004.

      10.2                 $45,000,000  Business Loan Agreement  between Bank of
                           America,  N.A. and California  Water Service  Company
                           dated December 23, 2004.


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