California Water Service Group, through its subsidiaries, provides water utility and other related services in California, Washington, New Mexico, and Hawaii. The company engages in the production, purchase, storage, treatment, testing, distribution, and sale of water for domestic, industrial, public, and irrigation uses, as well as for fire protection. It provides its services to approximately 480,300 customers in 83 California communities; 4,300 water and wastewater customers on the islands of Maui and Hawaii; 16,500 customers in the Tacoma and Olympia areas in Washington; and 7,900 water and wastewater customers in the Belen, Los Lunas, and Elephant Butte areas in New Mexico. The company is also involved in the non-regulated water-related services, including operating water and waste water systems; providing operating and maintenance, meter reading, and billing services to private companies and municipalities; leasing communication antenna sites on its properties to telecommunication companies; billing of third-party insurance programs to its residential customers; operating recycled water systems; providing lab services; and selling surplus property. California Water Service Group was founded in 1926 and is headquartered in San Jose, California.