CONSENT OF INDEPENDENT REGISTERED
Published on March 15, 2005
Exhibit 23.1
CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
The Board of Directors and Stockholders
California Water Service Group
We consent to incorporation by reference in the registration statements (No.
333-103721) on Form S-3 and (No. 333-60810) on Form S-8 of California Water
Service Group of our reports dated February 22, 2005, with respect to the
consolidated balance sheets of California Water Service Group and subsidiaries
as of December 31, 2004 and 2003, 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, 2004, management's
assessment of the effectiveness of internal control over financial reporting as
of December 31, 2004, and the effectiveness of internal control over financial
reporting as of December 31, 2004.
/s/ KPMG LLP
Mountain View, California
February 22, 2005