Exhibit 23.1




CONSENT OF INDEPENDENT AUDITORS



The Board of Directors
California Water Service Group


We consent to incorporation  by reference in the  registration  statements (Nos.
333-46447  and  333-103721  on  Form  S-3  and No.  333-60810  on  Form  S-8) of
California Water Service Group of our reports dated January 29, 2003,  except as
to Note 16, which is as of February 28, 2003,  with respect to the  consolidated
balance sheet of California  Water Service Group and subsidiaries as of December
31, 2002 and 2001,  and the related  consolidated  statements of income,  common
stockholders'  equity and comprehensive  income,  and cash flows for each of the
years  in the  three-year  period  ended  December  31,  2002,  and the  related
schedule,  which  reports  appear in or are  incorporated  by  reference  in the
December 31, 2002, annual report on Form 10-K of California Water Service Group.


                                                  /s/ KPMG LLP


Mountain View, California
March 20, 2003





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