According to our records, this business is located at 1720 N 1st St. in San Jose (in Santa Clara County), California 95112, the location GPS coordinates are: 37.36691 (latitude), -121.911763 (longitude). California Water Service Group is categorized under Holding Utilities Companies (SIC code 6719). Known organization chief executive officer is Peter C Nelson. Current estimates show that the unit has a sales volume of $277,128,000 and staff of approximately 837 people. You can contact the company by phone at (408) 367-8200; the following fax number is also provided: (408) 367-8430. Business website can be accessed at www.calwater.com.