California Water Service Group Schedules Second Quarter 2015 Earnings Results Announcement and Teleconference

SAN JOSE, CA -- (Marketwired) -- 07/09/15 -- California Water Service Group (NYSE: CWT) today announced that its second quarter 2015 earnings results will be released after market-close on Wednesday, July 29, 2015, and its teleconference will be held at 7:30 a.m. ET on Thursday, July 30, 2015. Please note this time is earlier in the day than typically scheduled.

All stockholders and interested investors are invited to listen to the teleconference. The 2015 second quarter conference call may be accessed by dialing 1-888-430-8705 or 1-719-457-2697 and keying in ID# 1770876. A replay of the call will be available from 2:00 p.m. ET on Thursday, July 30, 2015 through September 30, 2015, at 1-888-203-1112 or 1-719-457-0820, ID# 1770876. The call, which will be hosted by President and Chief Executive Officer Martin A. Kropelnicki, Vice President and Chief Financial Officer Thomas F. Smegal, and Vice President of Rates and Regulatory Matters Paul G. Townsley, will also be webcast under the investor relations tab at www.calwatergroup.com.

California Water Service Group is the parent company of California Water Service, Washington Water Service Company, New Mexico Water Service Company, Hawaii Water Service Company, Inc., CWS Utility Services, and HWS 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. Group's common stock trades on the New York Stock Exchange under the symbol "CWT."

Released July 9, 2015