8-K

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): September 12, 2007

CALIFORNIA WATER SERVICE GROUP

(Exact name of Registrant as Specified in its Charter)

Delaware
(State or other jurisdiction
of incorporation) 1-13883
(Commission file number) 77-0448994
(I.R.S. Employer
Identification Number)

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

(408) 367-8200
(Registrant’s telephone number, including area code)

N/A
(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:

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

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

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

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

TABLE OF CONTENTS

	Item 5.02. Departure of Directors or Principal Officers; Election of Directors; Appointment of Principal Officers.
	Item 9.01. Financial Statements and Exhibits.
SIGNATURES
Exhibit Index
EXHIBIT 99.1

Item 5.02. Departure of Directors or Principal Officers; Election of Directors; Appointment of Principal Officers.

     (b) On September 12, 2007, David Kennedy informed the Company that he was retiring from his position as a director of California Water Service Group and all its subsidiaries and affiliates, effective immediately.

Item 9.01. Financial Statements and Exhibits.

     We hereby furnish the following exhibit with this report:

Exhibit No.	Description
99.1	Press Release issued September 14, 2007.

SIGNATURES

     Pursuant to the requirements 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
Date: September 14, 2007	By:	/s/ Martin A. Kropelnicki
	Name:	Martin A. Kropelnicki
	Title:	Vice President, Chief Financial Officer and Treasurer

Exhibit Index

Exhibit No.	Description
99.1	Press Release issued September 14, 2007.

EX-99.1

Exhibit 99.1

N E W S     R E L E A S E

	CALIFORNIA WATER SERVICE GROUP
	1720 North First Street
	San Jose, CA 95112-4598	September 14, 2007
		For Immediate Release
Contact:	Shannon Dean (310) 257-1435 (media)

CALIFORNIA WATER SERVICE GROUP DIRECTOR TO RETIRE

     SAN JOSE, CA — California Water Service Group (NYSE : CWT) today announced outside director David N. Kennedy’s decision to retire after serving on the board since 2003.

     “Dave took his board responsibilities very seriously, as all of our board members do, and after careful consideration, he decided it was time to focus on personal rather than professional pursuits,” said Group Chairman, Robert W. Foy.

     “We will certainly miss him. He brought a wealth of water industry expertise to the table and served the company well,” Foy said.

     Kennedy, age 70, previously served as director of the California Department of Water Resources and is a life member of the American Society of Civil Engineering.

     California Water Service Group is the parent company of California Water Service Company, Washington Water Service Company, New Mexico Water Service Company, Hawaii Water Service Company, Inc., and CWS Utility Services. Together these companies provide regulated and non-regulated water service to more than 2 million people in 100 California, Washington, New Mexico, and Hawaii communities. The Group’s common stock trades on the New York Stock Exchange under the symbol “CWT”.

     This news release contains forward-looking statements within the meaning established by the Private Securities Litigation Reform Act of 1995 (“Act”). The forward-looking statements are intended to qualify under provisions of the federal securities laws for “safe harbor” treatment established by the Act. Forward-looking statements are based on currently available information, expectations, estimates, assumptions and projections, and management’s judgment about the Company, the water utility industry and general economic conditions. Such words as expects, intends, plans, believes, estimates, assumes, anticipates, projects, predicts, forecasts or variations of such words or similar expressions are intended to identify forward-looking statements. The forward-looking statements are not guarantees of future performance. They are subject to uncertainty and changes in circumstances. Actual results may vary materially from what is contained in a forward-looking statement. Factors that may cause a result different than expected or anticipated include, but are not limited to: governmental and regulatory commissions’ decisions; changes in regulatory commissions’ policies and procedures; the timeliness of regulatory commissions’ actions concerning rate relief; new legislation; electric power interruptions; increases in suppliers’ prices and the availability of supplies including water and power; fluctuations in interest rates; changes in environmental compliance and water quality requirements; acquisitions and our ability to successfully integrate acquired companies; the ability to successfully implement business plans; changes in customer water use patterns; the impact of weather on water sales and operating results; access to sufficient capital on satisfactory terms; civil disturbances or terrorist threats or acts, or apprehension about the possible future occurrences of acts of this type; the involvement of the United States in war or other hostilities; restrictive covenants in or changes to the credit ratings on our current or future debt that could increase our financing costs or affect our ability to borrow, make payments on debt or pay dividends; and, other risks and unforeseen events. When considering forward-looking statements, you should keep in mind the cautionary statements included in this paragraph, as well as the annual 10-K, Quarterly 10-Q, and other reports filed from time-to-time with the Securities and Exchange Commission (SEC). The Company assumes no obligation to provide public updates of forward-looking statements.

     Additional information is available at our Web site at www.calwatergroup.com.

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