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Organization Address Phone
Bayshore Sanitary District 36 Industrial Way, Brisbane (415) 467-1144
Byron Sanitary District 7995 Bruns Road, Byron (925) 634-3613
Carmel Area Wastewater District 3945 Rio Road, Carmel (831) 624-1248
Carpinteria Sanitary District 5300 Sixth Street, Carpenteria (805) 684-7214
Castro Valley Sanitary District 21040 Marshall Street, Castro Valley (510) 537-0757
Central Contra Costa Sanitary District 5019 Imhoff Place, Martinez (925) 228-9500
Central Marin Sanitation Agency 1301 Andersen Drive, San Rafael (415) 459-1455
County Sanitation District No. 2-3 of Santa Clara County 20833 Stevens Creek Boulevard, #104, Cupertino (408) 255-2137
Crockett Community Services District P.O. Box 578, Crockett (510) 787-2992
Cupertino Sanitary District 20863 Steven Creeks Blvd, #100, Cupertino (408) 253-7071
Delta Diablo 2500 Pittsburg-Antioch Hwy, Antioch (925) 756-1900
Dublin San Ramon Services District 7051 Dublin Blvd., Dublin (925) 828-0515
East Bay Dischargers Authority 2651 Grant Avenue, San Lorenzo (510) 278-5910
Encina Wastewater Authority 6200 Avenida Encinas, Carlsbad (760) 438-3941
Fairfield-Suisun Sewer District 1010 Chadbourne Road, Fairfield (707) 429-8930
Goleta Sanitary District One William Moffett Place, Goleta (805) 967-4519
Goleta West Sanitary District P.O. Box 4, Goleta (805) 968-2617
Inland Empire Utilities Agency 6075 Kimball Avenue, Chino (909) 993-1709
Ironhouse Sanitary District 450 Walnut Meadows Drive, Oakley (925) 625-2279
Lake Arrowhead Community Services District 28200 State Highway 189, Building 03, Suite 160, Lake Arrowhead (909) 336-7100
Las Gallinas Valley Sanitary 300 Smith Ranch Road, San Rafael (415) 472-1734
Leucadia Wastewater District 1960 La Costa Avenue, Carlsbad (760) 753-0155
Montara Sanitary District 8888 Cabrillo Highway, Montara (650) 728-3545
Montecito Sanitary District 1042 Monte Cristo Lane, Santa Barbara (805) 969-4200
Monterey One Water 5 Harris Court, Building D, Monterey (831) 372-3367
Mt. View Sanitary District 3800 Arthur Road, Martinez (925) 228-5635
Napa Sanitation District 1515 Soscol Ferry Road, Napa (707) 258-6000
North of River Sanitary District 204 Universe Avenue, Bakersfield (661) 399-6411
Novato Sanitary District 500 Davidson Street, Novato (415) 892-1694
Oceana Marin Sewer Imp. District 999 Rush Creek Place, Novato (415) 897-4133
Ojai Valley Sanitary District 1072 Tico Road, Ojai (805) 646-5548
Oro Loma Sanitary District 2655 Grant Avenue, San Lorenzo (510) 276-4700
Richardson Bay Sanitary District (SASM) 500 Tiburon Blvd., Tiburon (415) 388-1345
Rodeo Sanitary District 800 San Pablo Avenue, Rodeo (510) 799-2970
Ross Valley Sanitary District 2960 Kerner Blvd., San Rafael (415) 259-2949
San Elijo Joint Powers Authority 2695 Manchester Ave., Cardiff by the Sea (760) 753-6203
San Rafael Sanitation District 111 Morphew Street, San Rafael (415) 454-4001
Sanitary District No. 5 of Marin County 2001 Paradise Drive, Tiburon (415) 435-1501
Santa Margarita Water District 26111 Antonio Parkway, Rancho Santa Margarita (949) 459-6400
Sausalito-Marin City Sanitary District 1 East Road, Sausalito (415) 332-0244
Selma-Kingsburg-Fowler County S.D. P.O. Box 158, Kingsburg (559) 897-6500
Sewer Authority Mid-Coastside 1000 N. Cabrillo Highway, Half Moon Bay (650) 726-0124
Sewerage Agency Of Southern Marin 450 Sycamore Avenue, Mill Valley (415) 388-2406
Silicon Valley Clean Water 1201 Radio Road, Redwood City (650) 591-7121
South Orange County Wastewater Authority 34156 Del Obispo Street, Dana Point (949) 234-5400
Stege Sanitary District 7500 Schmidt Ln., El Cerrito (510) 524-4668
Tahoe-Truckee Sanitation Agency 13720 Butterfield Drive, Truckee (530) 587-2525
Triunfo County Sanitation District 1001 Partridge Drive, #150, Ventura (805) 658-4602
Truckee Sanitary District 12304 Joerger Drive, Truckee (530) 587-3804
Union Sanitary District 5072 Benson Road, Union City (510) 477-7500
Vallejo Flood and Wastewater District 450 Ryder Street, Vallejo (707) 644-8949
Valley Sanitary District 45500 Van Buren, Indio (760) 238-5400
Ventura Regional Sanitation District 1001 Partridge Dr., Suite 150, Ventura (805) 658-4670
Victor Valley Wastewater Recl. Auth. 15776 Main Street, Suite 3, Hesperia (760) 948-9849
West Bay Sanitary District 500 Laurel Street, Menlo Park (650) 321-0384
West County Wastewater District 2910 Hilltop Drive, Richmond (510) 222-6700
West Valley S.D. of Santa Clara County 100 East Sunnyoaks Avenue, Campbell (408) 378-2407
Western Riverside County R.W.A. 14205 Meridian Parkway, Riverside (951) 571-7100