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San Francisco, California | Drinking Water Utility Company

The area drinking water in San Francisco City Water System could be degraded by various contaminants including but not limited to Vinyl chloride, Selenium, Monochlorobenzene (chlorobenzene) and Caffeine, and may experience rising tiers of water hardness. San Francisco City Water System services this region with drinking water which originates its water supply from Purchased surface water.

What's in your drinking water?

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San Francisco City Water System Details

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Area served:

San Francisco, California

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Population served:

800236

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Water source:

Purchased surface water

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Phone:

415-551-3000

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Address:

525 Golden Gate Avenue, San Francisco, CA  94102 

California Dinking Water Utility

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Contaminants Detected In San Francisco, California

Chromium (hexavalent); Total trihalomethanes (TTHMs); Chromium (hexavalent); Bromide Chlorate; Strontium; Vanadium… more

San Francisco Dinking Water Utility

For a Limited Time - Get the San Francisco City Water System Official Water Score Report for Free.

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San Francisco City Water System

Annual Drinking Water Report

List of Drinking Water Contaminants Tested by San Francisco City Water System

But Not Detected:
1,1,1-Trichloroethane; 1,1,2,2-Tetrachloroethane; 1,1,2-Trichloroethane; 1,1-Dichloroethane; 1,1-Dichloroethylene; 1,2,3-Trichloropropane; 1,2,4-Trichlorobenzene; 1,2-Dibromo-3-chloropropane (DBCP); 1,2-Dichloroethane; 1,2-Dichloropropane; 1,3-Butadiene; 1,3-Dichloropropene; 1,4-Dioxane; 17-beta-Estradiol; 2,3,7,8-TCDD (Dioxin); 2,4,5-TP (Silvex); 2,4-D; 3-Hydroxycarbofuran; 4-Androstene-3,17-dione; Alachlor (Lasso); Aldicarb; Aldicarb sulfone; Aldicarb sulfoxide; Aldrin; Aluminum; Antimony; Arsenic; Asbestos; Atrazine; Barium; Baygon (Propoxur); Bentazon (Basagran); Benzene; Benzo[a]pyrene; Beryllium; Bromochloromethane; Bromomethane; Cadmium; Carbaryl; Carbofuran; Carbon tetrachloride; Chlordane; Chlorodifluoromethane; Chloromethane; cis-1,2-Dichloroethylene; Cobalt; Combined uranium; Cyanide; Dalapon; DCPA mono- and di-acid degradates; Di(2-ethylhexyl) adipate; Di(2-ethylhexyl) phthalate; Dicamba; Dichlorodifluoromethane; Dichloromethane (methylene chloride); Dieldrin; Dinoseb; Diquat; Endothall; Endrin; Equilin; Estriol; Estrone; Ethinyl estradiol; Ethylbenzene; Ethylene dibromide; Glyphosate; Heptachlor; Heptachlor epoxide; Hexachlorobenzene (HCB); Hexachlorocyclopentadiene; Lindane; m- & p-Xylene; Manganese; Mercury (inorganic); Methiocarb; Methomyl; Methoxychlor; Molinate; Molybdenum; Monochlorobenzene (chlorobenzene); MTBE; Nitrate; Nitrate & nitrite; Nitrite; o-Dichlorobenzene; o-Xylene; Oxamyl (Vydate); p-Dichlorobenzene; Pentachlorophenol; Perchlorate; Perfluorobutane sulfonate (PFBS); Perfluoroheptanoic acid (PFHPA); Perfluorohexane sulfonate (PFHXS); Perfluorononanoic acid (PFNA); Perfluorooctane sulfonate (PFOS); Perfluorooctanoic acid (PFOA); Picloram; Polychlorinated biphenyls (PCBs); Radium-226; Selenium; Silver; Simazine; Styrene; Testosterone; Tetrachloroethylene (perchloroethylene); Thallium; Thiobencarb; Toluene; Toxaphene; trans-1,2-Dichloroethylene; Trichloroethylene; Trichlorofluoromethane; Trichlorotrifluoroethane; Vinyl chloride; Xylenes (total)

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Find out which contaminants are found above Legal and Health Guidelines.

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San Francisco City Water System

About Us


94102  Annual Water Report

Email

cab@sfwater.org


San Francisco City Water System Payment Options

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California Water Utility Companies

Our major drinking water source originates from springtime snowmelt flowing over the Tuolumne River to storage in Hetch Hetchy Reservoir. The well-protected Macizo water source is usually exempt from filtration requirements by the United States Epa (USEPA) and Condition Water Resources Control Board Division of Water (SWRCB-DDW). Water coming from Hetch Hetchy Tank receives the following treatment to meet all suitable drinking water standards intended for consumption: ultraviolet light and chlorine disinfection, pH adjustment intended for optimum corrosion control, fluoridation for oral health protection, and chloramination for maintaining medical disinfectant residual and reducing the formation of disinfection byproducts. Hetch Hetchy water is supplemented with surface drinking water from two regional watersheds. Rainfall and runoff from the thirty-five, 000-acre Alameda Watershed in Alameda and Santa Clara areas are collected inside the Calaveras and San Antonio reservoirs, and they are delivered to the Sunol Valley Water Treatment Plant (SVWTP). Rainfall and runoff from your 23, 000-acre Peninsula Watershed in San Mateo County are stored in the Amazingly Springs, San Andreas, and Pilarcitos reservoirs, and are delivered to the Harry Tracy Drinking water Treatment Plant. Additionally to these local places, the SWRCBDDW authorized our use of Upcountry Non-Hetch Hetchy Resources (UNHHS), which include surface water found in Lake Eleanor, Pond Cherry and the connected creeks all communicated via the Lower Cherry wood Aqueduct, Early Consumption Reservoir, and Tuolumne River as extra drinking water sources. The UNHHS water, if used, would be cured at the SVWTP just before delivery to clients. We did not make use of the UNHHS in 2017. Water at the two local treatment plant life is subject to purification, disinfection, fluoridation, and optimum corrosion control by pH adjusting. Since mid-2017, a modest amount of groundwater from regional wells was put into our surface drinking water supplies. The use of community groundwater helps shift our water resources and makes our water supply in the Bay area even more reliable..

California EPA Water Reports

For more information on your drinking water, visit the U.S. Environmental Protection Agency:

San Francisco City Water System Drinking Water Company and EPA

San Francisco City Water System Drinking Water Report Info
Great, proficient and dependable water, power and sewer services San Francisco Public Utilities Commission provides retail drinking water and wastewater services to the City of San Francisco, wholesale water to three Bay Area counties, green hydroelectric and solar power to Hetch Hetchy electricity customers, and power to the residents and businesses of San Francisco through the CleanPowerSF program. We are comprised of three essential all day, everyday service utilities: Water, Wastewater and Power. These functions are supported by the Business Services, Infrastructure and External Affairs bureaus. Headquartered at 525 Golden Gate Avenue in San Francisco, we have around 2,300 employees working in seven counties with a joined yearly working spending plan of over $1billion. Our mission is to furnish our customers with great, effective and solid water, power, and sewer services in a way that is inclusive of ecological and network interests, and that sustains the resources entrusted to our consideration..

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California CDC Tap Water Info

For more information on your drinking water, visit the U.S. CDC:

San Francisco City Water System Drinking Water Company and CDC

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San Francisco City Water System consumer info

San Francisco City Water System provides drinking water services to the public of San Francisco and San Francisco, California.

Free Water Safety Report for San Francisco City Water System. (Limited Time)

San Francisco City Water System FAQ

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