Seattle, Washington | Municipal Water Utility Company | Public Service Announcement
The community tap water in Seattle Public Utilities may contain several concerning contaminants including Bromodichloromethane and Chloroform, 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?
Free Official Water Safety Report for Seattle Public Utilities!
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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
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?
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Seattle Public Utilities
About Us
For more Washington resources & information
Washington Water Utility Companies
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- Where does Seattle Public Utilities water come from?
Seattle Public Utilities supplies surface water to Seattle, Washington. - Does Seattle Public Utilities test its tap water?
Yes. Like every public water system, Seattle Public Utilities must test its water under the federal Safe Drinking Water Act and publish an annual water quality report (Consumer Confidence Report). Ask the utility for the latest report or look for it on its website. - How do I contact Seattle Public Utilities?
Call 206-684-3000 or visit 700 5th Ave., Seattle, WA 98124-4018, or use the contact options on the utility’s website. - Does Seattle Public Utilities water contain lead?
Water usually leaves the treatment plant without lead. Lead can enter tap water from older service lines, solder and brass fixtures inside homes, especially when water sits in the pipes. Run the tap before drinking if water has been sitting, and ask the utility about lead testing and service line records. - Is Seattle Public Utilities water hard?
Hardness depends on the source and changes over time. The annual water quality report lists hardness, or you can test it at home. If it is above about 7 grains per gallon, a water softener sized to your measured hardness will stop scale and spotting.
Seattle Public Utilities provides municipal water services to the residents of Seattle and surrounding areas in Washington State.
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