Exhibit 23.2
CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
We consent to the incorporation by reference in this Registration Statement on Form S-3 of our report dated February 29, 2012, relating to the consolidated financial statements of California Water Service Group, and the effectiveness of California Water Service Groups internal control over financial reporting, appearing in the Annual Report on Form 10-K of California Water Service Group for the year ended December 31, 2011, and to the reference to us under the heading Experts in the Prospectus, which is part of this Registration Statement.
/s/ DELOITTE & TOUCHE LLP
San Francisco, California
May 11, 2012