
Seattle, Washington | Municipal Water Utility Company | Public Service Announcement
The community tap water in Seattle Public Utilities may contain several concerning contaminants including n-Propylbenzene, Chloroform, Acetochlor and Toluene, alongside challenging levels of water hardness. Seattle Public Utilities provides your area with municipal water sourced primarily from Surface water reservoirs.
What's in your tap water?
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Seattle Public Utilities Area Details

Area served:
Seattle, Washington

Population served:
678129

Water source:
Surface water

Phone:
206-684-3000

Address:
700 5th Ave., Seattle, WA 98124-4018

3date
Contaminants Detected In Seattle, Washington
Bromodichloromethane; Chloroform; Chromium (hexavalent); Dichloroacetic acid; Total trihalomethanes (TTHMs); Trichloroacetic acid; Bromodichloromethan… more

Free Official Water Safety Report for Seattle Public Utilities!
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Seattle Public Utilities
Annual Municipal Water Report
List of Municipal Water Contaminants Tested by Seattle Public Utilities
Tested But Not Detected:
1,1,1,2-Tetrachloroethane; 1,1,1-Trichloroethane; 1,1,2,2-Tetrachloroethane; 1,1,2-Trichloroethane; 1,1-Dichloroethane; 1,1-Dichloroethylene; 1,1-Dichloropropene; 1,2,3-Trichlorobenzene; 1,2,3-Trichloropropane; 1,2,4-Trichlorobenzene; 1,2,4-Trimethylbenzene; 1,2-Dibromo-3-chloropropane (DBCP); 1,2-Dichloroethane; 1,2-Dichloropropane; 1,3,5-Trimethylbenzene; 1,3-Butadiene; 1,3-Dichloropropane; 1,4-Dioxane; 17-beta-Estradiol; 2,2-Dichloropropane; 2,4,5-TP (Silvex); 2,4-D; 2,4-DB; 4-Androstene-3,17-dione; Acifluorfen (Blazer); Antimony; Bentazon (Basagran); Benzene; Benzoic acid; Beryllium; Bromobenzene; Bromochloromethane; Bromoform; Bromomethane; Carbon tetrachloride; Chlorodifluoromethane; Chloroethane; Chloromethane; cis-1,2-Dichloroethylene; cis-1,3-Dichloropropene; Cobalt; Cyanide; Dalapon; Dibromomethane; Dicamba; Dichlorodifluoromethane; Dichloromethane (methylene chloride); Dichlorprop; Dinoseb; Equilin; Estriol; Estrone; Ethinyl estradiol; Ethylbenzene; Ethylene dibromide; Hexachlorobutadiene; Isopropylbenzene; m- & p-Xylene; m-Dichlorobenzene; Mercury (inorganic); Molybdenum; Monobromoacetic acid; Monochlorobenzene (chlorobenzene); n-Butylbenzene; n-Propylbenzene; Naphthalene; Nitrate & nitrite; Nitrite; o-Chlorotoluene; o-Dichlorobenzene; o-Xylene; p-Chlorotoluene; p-Dichlorobenzene; p-Isopropyltoluene; Pentachlorophenol; Perfluorobutane sulfonate (PFBS); Perfluoroheptanoic acid (PFHPA); Perfluorohexane sulfonate (PFHXS); Perfluorononanoic acid (PFNA); Perfluorooctane sulfonate (PFOS); Perfluorooctanoic acid (PFOA); Picloram; Radium; combined (-226 & -228); Radium-228; sec-Butylbenzene; Silver; Styrene; tert-Butylbenzene; Testosterone; Tetrachloroethylene (perchloroethylene); Thallium; Toluene; trans-1,2-Dichloroethylene; trans-1,3-Dichloropropene; Trichloroethylene; Trichlorofluoromethane; Vinyl chloride; Xylenes (total)

What's in your tap water?

Discover which contaminants exceed Legal and Health Guidelines in your water supply.
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Seattle Public Utilities
About Us
Population growth, shifting climate patterns and aging infrastructure all impact current and future water demands and delivery capabilities. To maintain water quality and reliability, Seattle must continue making strategic investments in its water system, which serves approximately 1.4 million residents throughout the Puget Sound region.
Our resources include two protected watersheds, advanced treatment facilities, covered storage reservoirs, and sufficient capacity for current and future needs. However, like all critical utility infrastructure, our water system requires careful planning and management—from the mountain watersheds where water originates to the household taps where it's consumed.
The 2019 Water System Plan outlines how the utility will meet demand while maintaining quality standards and efficiently preserving the entire water distribution network. Learn more at Seattle.gov/util/watersystemplan.

For more information on your municipal water, visit the U.S. Environmental Protection Agency:
Seattle Public Utilities Municipal Water Company and EPASeattle Public Utilities Municipal Water Report Information
When you turn on your faucet and clean, life-sustaining water flows out, it's easy to take this resource for granted. We don't. The team at Sammamish Plateau Water and Sewer District takes our responsibility seriously to ensure your water remains:
- Clean and safe for consumption
- Reliable for daily household needs
- Affordable for all residents
Each payment you make is directly invested in protecting, developing, and maintaining water and sewer infrastructure for future generations. Visit our website to learn more about our commitment to water quality.
Municipal Water Utility Company FAQ

For more information on your municipal water, visit the U.S. CDC:
Seattle Public Utilities Municipal Water Company and CDC.. ...

Seattle Public Utilities provides municipal water services to the residents of Seattle and surrounding areas in Washington State.
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