Districts:
• Alameda County Flood Control and Water Conservation, Zone 7

• Alameda County Water District
• Alhambra (City of) Utilities Department
• Alta Irrigation District
• Amador Water Agency
• American States Water Company
• Anderson-Cottonwood Irrigation District
• Antelope Valley District - see Cal Water
• Antelope Valley-East Kern Water Agency
• Antioch (City of) Public Works Department
• Bakersfield District - see Cal Water
• Bay Area Water Supply & Conservation Agency
• Bayshore District - see Cal Water
• Bear Gulch District - see Cal Water
• Bear Valley Community Services District
• Bella Vista Water District
• Berrenda Mesa Water District
• Big Bear Area Regional Wastewater Agency
• Big Bear City Community Services District
• Big Bear Lake (City of) Department of Water and Power
• Big Bear Municipal Water District
• Blue Ridge Oaks Public Water System - see Solano Irrig. District
• Bolinas Community Public Utility District
• Borrego Water District
• Brooktrails Township Community Services District
• Browns Valley Irrigation District
• Buellton (City of) Public Works Directory

[top]

• Cachuma Operation and Maintenance Board
• Calaveras County Water District
• Calaveras Public Utility District
• California American Water Company
• California Water Service Company (Cal Water) - Responsible for ...
• Antelope Valley District
• Bakersfield District
• Bayshore District
• Bear Gulch District
• Chico District
• Dixon District
• East Los Angeles District
• Kern River Valley District
• King City District
• Livermore District
• Los Altos District
• Marysville District
• Oroville District
• Rancho Dominguez District
• Redwood Valley District
• Salinas District
• Selma District
• Stockton District
• Visalia District
• Westlake District
• Willows District
• Calleguas Municipal Water District
• Cambria Community Services District
• Cameron Park Community Services District
• Camrosa Water District
• Carlsbad Metropolitan Water District
• Carmichael Water District

• Carpinteria Valley Water District
• Casitas Municipal Water District
• Castaic Lake Water Agency
• Central Coast Water Authority
• Central Marin Sanitation Agency
• Central Municipal Water District
• Chico District - see Cal Water
• Channel Islands Beach Community Services District
• Chino Basin Water Conservation District
• Chino Basin Watermaster
• Citrus Heights Water District
• Clear Creek Community Service District
• Coachella Valley Water District
• Coastside County Water District
• Contra Costa Water District
• Corona Department of Water and Power
• Cotati (City of) Water Division
• Crescenta Valley Water District
• Crestline Village Water District
• Cucamonga Valley Water District
• Desert Water Agency
• Dixon District - see Cal Water
• Dixon Solano Municipal Water Service - see Solano Irrig. District
• Downey (City of) Water Utilities
• Dublin San Ramon Services District

[top]

• East Bay Municipal Utility District
• East Los Angeles District - see Cal Water
• East Orange County Water District
• East Valley Water District
• Eastern Municipal Water District
• Eastside Water District
• El Dorado County Water Agency
• El Dorado Irrigation District
• El Toro Water District
• Elk Grove Water Service
• Elmira Public Water System - see Solano Irrig. District
• Elsinore Valley Municipal Water District
• Escondido (City of) Utilities Division

• Fair Oaks Water District
• Fairfield (City of)
• Fallbrook Public Utility District
• Fillmore (City of) Public Works Department
• Folsom (City of) Water Utilities
• Foothill Municipal Water District
• Forest Hill Public Utility District
• Frazier Park Public Utility District
• Fresno (City of) Department of Public Utilities
• Fresno Irrigation District
• Fresno Metropolitan Flood Control District
• Friant Water Authority
• Friant Water Users Authority (Includes contact info for member districts)
• Gibson Canyon Public Water System - see Solano Irrig. District
• Glendale (City of) Water and Power
• Glenn-Colusa Irrigation District
• Goleta Water District
• Grassland Water District
• Green Valley County Water District
• Groveland Community Services District

[top]

• Helix Water District
• Hesperia (City of) Water District
• Hi-Desert Water District
• Hidden Valley Lake Community Services District
• Hollister Water Dept. (375 Fifth St., Hollister, CA 95023; 831-636-4301)
• Humboldt Bay Municipal Water District
• Idyllwild Water District
• Inglewood Water Works
• Inland Empire Utilities Agency
• Imperial Irrigation District
• Indian Wells Valley Water District
• Inyo County Water Department
• Irvine Ranch Water District

• Joshua Basin Water District
• Jurupa Community Services District
• Kaweah Delta Water Conservation District
• Kern County Water Agency
• Kern River Valley District - see Cal Water
• King City District - see Cal Water
• Kings River Conservation District
• Kirkwood Meadows Public Utility District
• La Puente Valley County Water District
• Laguna Beach (City of) Water Quality Department
• Laguna Beach County Water District
• Lake Arrowhead Community Services District
• Lake County Water Resources Division
• Lake Don Pedro Community Services District
• Lake Elizabeth Mutual Water Co.
• Lake Hemet Municipal Water District
• Lakeside Water District
• Lakewood (City of) Water and Water Quality
• Las Virgenes Municipal Water District
• Livermore District - see Cal Water
• Long Beach (City of) Water Department
• Los Altos District - see Cal Water
• Los Angeles Department of Water and Power
• Lost Hills Water District
• Lower Tule Irrigation District

[top]

• Madera Irrigation District
• Main San Gabriel Basin Watermaster
• Malaga County Water District
• Mammoth Community Water District
• Marin Municipal Water District - also see Central Marin Sanitation Agency
• Marina Coast Water District
• Marysville District - see Cal Water
• McKinleyville Community Services District
• Mendocino County Water Agency
• Merced Irrigation District
• Mesa Consolidated Water District
• Metropolitan Water District of Southern California
• Mid-Peninsula Water District

• Midway Heights County Water District
• Mission Springs Water District
• Modesto Irrigation District
• Mojave Water Agency
• Montara Water and Sanitary District
• Monte Vista Water District
• Montecito Sanitary District
• Montecito Water District
• Monterey County Water Resources Agency
• Monterey Peninsula Water Management District
• Moulton Niguel Water District
• Municipal Water District of Orange County
• Newhall County Water District
• Nevada Irrigation District
• North Coast County Water District
• North Marin Water District
• North of the River Municipal Water District

[top]

• Oakdale Irrigation District
• Oceanside (City of) Water Utilities Department
• Olivenhain Municipal Water District
• Orange County Water District
• Oroville District - see Cal Water
• Otay Water District
• Oxnard (City of) Public Works Department Water Section
• Padre Dam Municipal Water District
• Pajaro Valley Water Management Agency
• Palmdale Water District
• Paradise Irrigation District
• Pasadena Water and Power
• Peabody Public Water System - see Solano Irrig. District
• Pebble Beach Community Services District
• Petaluma (City of) Water Resources and Conservation
• Pico Water District
• Placer County Water Agency
• Pleasant Hills Public Water System - see Solano Irrig. District
• City of Poway
• Quail Canyon Public Water System - see Solano Irrig. District
• Quartz Hill Water District
• Rainbow Municipal Water District
• Ramona Municipal Water District
• Rancho California Water District
• Rancho Dominguez District - see Cal Water
• Reclamation District No. 1000
• Redding (City of) Water Utility
• Redwood Valley County Water District
• Redwood Valley District - see Cal Water
• Rincon del Diablo Municipal Water District
• Riverside (City of) Water Services
• Riverside County Flood Control and Water Conservation District
• Rio Linda-Elverta Community Water District 
• Rohnert Park (City of) Water, Sewer & Garbage
• Rosamond Community Services District
• Roseville (City of) Water Utility
• Rowland Water District

[top]

• Sacramento (City of) Department of Utilities
• Sacramento County Water Agency
• Sacramento Suburban Water District
• Regional Water Authority - greater Sacramento
• Salinas District - see Cal Water
• San Benito County Water District
• San Bernardino (City of) Municipal Water District
• San Bernardino County Special Districts Department of Water & Sanitation Division
• San Bernardino Valley Municipal Water District
• San Bernardino Valley Water Conservation District
• San Diego (City of) Water Department
• San Diego County Water Authority
• San Dieguito Water District
• San Francisco Public Utilities Commission
• San Francisquito Creek Joint Powers Authority
• San Gabriel Basin Water Quality Authority
• San Gabriel Valley Municipal Water District
• San Gabriel Valley Water Association
• San Gorgonio Pass Water Agency
• San Joaquin County Public Works Department
• San Juan Bautista (City of) Water Department
• San Juan Capistrano (City of) Water Division
• San Juan Water District
• San Luis & Delta-Mendota Water Authority
• Santa Ana Watershed Project Authority
• Santa Barbara (City of) Public Works, Water Resources Division
• Santa Clara Valley Water District
• Santa Cruz City Water Department
• Santa Fe Irrigation District
• Santa Margarita Water District
• Scotts Valley Water District
• Selma District - see Cal Water
• Semitropic Water Storage District
• Serrano Water District
• Shafter-Wasco Irrigation District
• Sierra Lakes County Water District
• Solano County Water Agency
• Solano Irrigation District - Responsible for ...
• Blue Ridge Oaks Public Water System
• Dixon Solano Municipal Water Service
• Elmira Public Water System
• Gibson Canyon Public Water System
• Peabody Public Water System
• Pleasant Hills Public Water System
• Quail Canyon Public Water System
• Stocking Ranch Public Water System
• Suisun-Solano Water Authority
• Sonoma (City of) Water Division
• Sonoma County Water Agency
• Soquel Creek Water District
• South Coast Water District
• South San Joaquin Irrigation District
• South Tahoe Public Utility District
• Stinson Beach County Water District
• Stocking Ranch Public Water System - see Solano Irrig. District
• Stockton (City of) Municipal Utilities Department
• Stockton District - see Cal Water
• Stockton East Water District
• Suisun-Solano Water Authority - see Solano Irrig. District
• Sunnyslope County Water District
• Sweetwater Authority
• Sweetwater Springs Water District

[top]

• Tahoe City Public Utility District
• Tehachapi (City of) Public Works Department
• Tehachapi-Cummings County Water District
• Three Valleys Municipal Water District
• Torrance (City of) Municipal Water District
• Trabuco Canyon Water District
• Tulare Irrigation District
• Tuolumne Utilities District
• Turlock Irrigation District
• Twentynine Palms Water District
• United Water Conservation District
• Upper San Gabriel Valley Municipal Water District
• Vacaville (City of) Public Works Department
• Vallecitos Water District
• Valley Center Municipal Water District
• Valley County Water District
• Valley of the Moon Water District
• Vandenberg Village Community Services District
• Victor Valley Water District
• Visalia District - see Cal Water
• Vista Irrigation District

[top]

• Walnut Valley Water District
• Water Replenishment District of Southern California
• Weaverville Community Services District
• Westlake District - see Cal Water
• West Basin Municipal Water District
• West Kern Water District
• West Stanislaus Irrigation District
• Westborough Water District
• Westlands Water District
• Western Municipal Water District
• Wheeler Ridge-Maricopa Water Storage District
• Willows District - see Cal Water
• Yolo County Flood Control & Water Conservation District
• Yorba Linda Water District
• Yuba City Public Works Department
• Yuba County Water Agency
• Yucaipa Valley Water District
• Yuima Municipal Water District

[top]

Associations:
• American Water Resources Association (AWRA) - list of over 570 Calif. water departments, associations, and companies (dated 2001).
• Association of California Water Agencies (ACWA)
• California Farm Water Coalition
• California Municipal Utilities Association
• California-Nevada Section, American Water Works Association (AWWA)
• California Rural Water Association
• California Urban Water Conservation Council
• California Urban Water Agencies
• California Water Association Consortium of over 52 investor-owned water utilities providing services throughout California
• California Water Service Group 20 water districts serving 39 California communities
California Water Clearinghouse Bay-Delta
• Colorado River Water Users Association | California
• Los Angeles and San Gabriel Rivers Watershed Council
• Northern California Water Association (NCWA)
• Owens Valley Committee
• Sacramento Area Water Works Association
• Southern California Water Utilities Association
• State Water Contractors
• Urban Water Institute
• Water Education Foundation
• WaterReuse Association of California

[top]