Mountain View
| Water Suppliers | Water Conservation | Area Served | Water Source | Treatment |
| City of Mountain View Public Works (650) 903-6329 | Reading Your Meter [PDF] Find Your Account No./Read Your Bill
| North of U.S. 101 south to Cuesta Dr., east from Sunnyvale and west to Palo Alto/Los Altos border | Chloramine
| |
| South of Cuesta Dr. to Mountain View, west to Los Altos border | SCVWD | Chloramine | ||
| (West; Well 19) Evelyn to Castro and south along Highway 85 to El Camino Real (East; Well 20) Moorpark south and southwest to El Camino Real (North; Wells 21 and 10) Rengstorff west to Mayfield. Gladys west to Farley | Well water | Untreated | ||
| California Water Service Company (650) 917-0152 | From Grant Road east in small areas around Highway 85 | 72% SCVWD | Chloramine | |
| 28% well water | Chlorinated |