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855-683-8488
San Francisco, California | Municipal Water Utility Company | Public Service Announcement
The tap water distributed by San Francisco City Water System may contain several concerning contaminants including Vinyl chloride, Selenium, Monochlorobenzene (chlorobenzene) and Caffeine, along with potentially increasing levels of water hardness. The system supplies this region with municipal water sourced from Purchased surface water supplies.
What's in your tap water?
For a Limited Time - Obtain the San Francisco City Water System Official Water Score Report at No Cost.
US Public Records
San Francisco City Water System Area Details
Area served:
San Francisco, California
Population served:
800236
Water source:
Purchased surface water
Phone:
415-551-3000
Address:
525 Golden Gate Avenue, San Francisco, CA 94102
3date
Contaminants Detected In San Francisco, California
Chromium (hexavalent); Total trihalomethanes (TTHMs); Chromium (hexavalent); Bromide Chlorate; Strontium; Vanadium… more
For a Limited Time - Obtain the San Francisco City Water System Official Water Score Report at No Cost.
DISCOVER THE TRUTH & SAFEGUARD YOUR FAMILY!
US Public Records
San Francisco City Water System
Annual Municipal Water Report
List of Municipal Water Contaminants Tested by San Francisco City Water System
Tested 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)
What's in your tap water?
Discover which contaminants exceed Legal and Health Guidelines in your water.
DISCOVER THE TRUTH & SAFEGUARD YOUR FAMILY!
US Public Records
San Francisco City Water System
About Us
Our primary municipal water supply comes from snowmelt flowing through the Tuolumne River into Hetch Hetchy Reservoir. This protected water source has received exemption from filtration requirements by both the United States Environmental Protection Agency (USEPA) and State Water Resources Control Board Division of Water (SWRCB-DDW).
Water from Hetch Hetchy Reservoir undergoes several treatment processes to meet all applicable standards for consumption:
- Ultraviolet light and chlorine disinfection
- pH adjustment for optimal corrosion control
- Fluoridation for dental health protection
- Chloramination to maintain disinfectant residual and reduce byproducts
We supplement Hetch Hetchy water with surface water from two regional watersheds:
- The 35,000-acre Alameda Watershed (Alameda and Santa Clara counties) collects in Calaveras and San Antonio reservoirs before processing at Sunol Valley Water Treatment Plant (SVWTP)
- The 23,000-acre Peninsula Watershed (San Mateo County) stores water in Crystal Springs, San Andreas, and Pilarcitos reservoirs before treatment at Harry Tracy Water Treatment Plant
Additionally, SWRCB-DDW has approved our use of Upcountry Non-Hetch Hetchy Sources (UNHHS), which we did not utilize in 2017. Since mid-2017, we've incorporated a modest amount of groundwater from local wells to diversify our supply portfolio and enhance Bay Area water reliability.
For more information on your municipal water, visit the U.S. Environmental Protection Agency:
San Francisco City Water System Municipal Water Company and EPASan Francisco City Water System Municipal Water Report Info
The San Francisco Public Utilities Commission delivers reliable water, power, and sewer services to the city and surrounding areas. We provide retail municipal water and wastewater services to San Francisco, wholesale water to three Bay Area counties, and clean hydroelectric and solar power to Hetch Hetchy electricity customers. Additionally, we serve San Francisco residents and businesses through the CleanPowerSF program.
Our organization consists of three essential 24/7 service utilities: Water, Wastewater, and Power, supported by Business Services, Infrastructure, and External Affairs bureaus. Based at 525 Golden Gate Avenue in San Francisco, we employ approximately 2,300 staff across seven counties with a combined annual operating budget exceeding $1 billion.
Our mission is to provide customers with excellent, efficient, and reliable utility services while considering environmental and community interests, and sustainably managing the resources entrusted to our care.
Municipal Water Utility Company FAQ
For more information on your municipal water, visit the U.S. CDC:
San Francisco City Water System Municipal Water Company and CDC.. ...
San Francisco City Water System provides municipal water services to the residents of San Francisco and San Francisco, California.
Free Water Safety Report for San Francisco City Water System. (limited time offer)
DISCOVER THE TRUTH & SAFEGUARD YOUR FAMILY!
US Public Records
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