Alameda County Water District City of Brisbane / Guadalupe Valley Municipal Improvement District City of Burlingame California Water Service - Bear Gulch District California Water Service - Mid-Peninsula District California Water Service - South San Francisco District Coastside County Water District City of Daly City City of East Palo Alto Estero Municipal Improvement District City of Hayward Town of Hillsborough City of Menlo Park Mid-Peninsula Water District City of Millbrae City of Milpitas City of Mountain View North Coast County Water District City of Palo Alto Purissima Hills Water District City of Redwood City City of San Bruno City of San Jose, San Jose Municipal Water System - North City of Santa Clara Stanford University City of Sunnyvale Westborough County Water District
