Exhibit 13.1 Regulated and Non-Regulated Customers
NON- DISTRICT NAME INCLUDING REGULATED REGULATED - ------------- --------- --------- --------- CALIFORNIA Antelope Valley Fremont Valley, Lake Hughes, Lancaster 1,300 400 and Leona Valley; numerous operating agreements Bakersfield O&M contracts for the City of Bakersfield 57,500 25,800 and Spicer City Bear Gulch Atherton, Woodside, Portola Valley, 17,500 4,000 portions of Menlo Park and City of Menlo Park service contract Chico+ Hamilton City 23,300 Dixon 2,800 Dominguez Carson and portions of Compton, Harbor 32,800 City, Long Beach and Torrance East Los Angeles O&M contracts for cities of Commerce and 26,400 2,700 Montebello Hawthorne 15-year lease -- full service water operations 6,100 Hermosa-Redondo+ a portion of Torrance; meter reading for 25,600 13,400 Manhattan Beach Kern River Valley Bodfish, Kernville, Lakeland, Mountain 4,100 500 Shadows, Onyx, Squirrel Valley, South Lake and Wofford Heights; numerous operating agreements King City+ 2,200 Livermore O&M contracts for Castlewood Country 16,800 400 Club and Crane Ridge MWC Los Altos portions of Cupertino, Los Altos Hills, 18,300 Mountain View and Sunnyvale Marysville+ 3,800 Mid-Peninsula San Mateo and San Carlos 35,800 Oroville 3,500 Palos Verdes+ Palos Verdes Estates, Rancho Palos Verdes, 23,800 Rolling Hills Estates and Rolling Hills Redwood Valley Lucerne, Duncans Mills and Guerneville 1,900 300 Salinas O&M contracts for Foothill Estates 26,700 300 and Spreckels Water Co. Selma 5,200 South San Francisco Colma and Broadmoor 16,300 Stockton 41,700 Visalia+ four O&M contracts 29,300 1,100 Westlake a portion of Thousand Oaks 6,900 Willows+ 2,300 -------- ------- California total 425,800 55,000 NEW MEXICO meter reading contracts 48,500 WASHINGTON numerous O&M contracts 12,500 2,400 --------- -------- Company total 438,300 105,900
59