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## Corporate Information 

## STOCK TRANSFER, DIVIDEND DISBURSING AND REINVESTMENT AGENT 

Fleet National Bank c/o EquiServe L.P. P.O. Box 43010 Providence, RI 02940-3010 (800) 736-3001 

## TO TRANSFER STOCK 

A change of ownership of shares (such as when stock is sold or gifted or when owners are deleted from or added to stock certificates) requires a transfer of stock.To transfer stock, the owner must complete the assignment on the back of the certificate and sign it exactly as his or her name appears on the front.This signature must be guaranteed by an eligible guarantor institution (banks, stock brokers, savings and loan associations and credit unions with mem- bership in approved signature medallion programs) pursuant to SEC Rule 17Ad-15. A notary’s acknowledgement is not acceptable.This certificate should then be sent to EquiServe, L. P. Stockholder Services, by registered or certified mail with complete transfer instructions. 

## BOND REGISTRAR 

US Bank Trust, N.A. One California Street San Francisco, CA 94111-5402 (415) 273-4580 

## EXECUTIVE OFFICE 

California Water Service Group 1720 North First Street San Jose, CA 95112-4598 (408) 367-8200 

## Officers 

## CALIFORNIA WATER SERVICE COMPANY 

Robert W. Foy 1,2,3 Chairman of the Board 

Peter C. Nelson 1,2,3 President and Chief Executive Officer 

Paul G. Ekstrom 4 Vice President, Customer Service, and Corporate Secretary 

Richard D. Nye 1,2,3 Vice President, Chief Financial Officer and Treasurer 

Francis S. Ferraro 2,5 Vice President, Regulatory Matters and Corporate Development 

Robert R. Guzzetta 2 Vice President, Engineering and Water Quality 

## ANNUAL MEETING 

The Annual Meeting of Stockholders will be held on Wednesday, April 23, 2003, at 10 a.m. at the Company’s Executive Office, located at 1720 North First Street in San Jose, California. Details of the business to be transacted during the meeting will be contained in the proxy material, which will be mailed to stockholders on or about March 26, 2003. 

## DIVIDEND DATES FOR 2003 

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## ANNUAL REPORT FOR 2002 ON FORM 10-K 

A copy of the Company’s report for 2002 filed with the Securities and Exchange Commission (SEC) on Form 10-K will be available in April 2003 and can be obtained by any stockholder at no charge upon written request to the address below. The Company’s filings with the SEC can viewed via the link to the SEC’s EDGAR system on the Company’s web site. 

## STOCKHOLDER INFORMATION 

California Water Service Group Attn: Stockholder Relations 1720 North First Street San Jose, CA 95112-4598 (408) 367-8200 or (800) 750-8200 http://www.calwater.com 

Christine L. McFarlane Vice President, Human Resources 

Raymond H.Taylor Vice President, Operations 

Dan L. Stockton Vice President, Chief Information Officer 

Calvin L. Breed 1 Controller,Assistant Secretary and Assistant Treasurer 

## WASHINGTON WATER SERVICE COMPANY 

Michael P. Ireland President 

## NEW MEXICO WATER SERVICE COMPANY 

Robert J. Davey President 

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