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): January 24, 2007

CALIFORNIA WATER SERVICE GROUP

(Exact name of Registrant as Specified in its Charter)

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

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

EXHIBIT 99.1

Item 8.01. Other Events

On January 24, 2007, California Water Service Group (the “Company”) issued a press release (a copy of which is attached hereto as Exhibit 99.1 and incorporated herein by reference) announcing (i) the declaration of a quarterly dividend of $0.2900 per common share payable on February 16, 2007, to stockholders of record on February 5, 2007, and (ii) that it had set the date of its Annual Stockholders Meeting to be April 25, 2007.

Item 9.01. Financial Statements and Exhibits.

          We hereby furnish the following exhibits with this report:

Exhibit No.	Description
99.1	Press Release issued January 24, 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: January 25, 2007	By: Name:	/s/ Martin A. Kropelnicki Martin A. Kropelnicki
	Title:	Vice President, Chief Financial Officer and Treasurer

EXHIBIT INDEX

Exhibit No.	Description
99.1	Press Release issued January 24, 2007