Tap Water in Seattle, Washington

Overall rating

High concern tap water rating

Water systems

• Water systems serving ZIP 98133

  Score 19 · 29 contaminants · 18 over guideline

• Haloacetic acids (HAA9)Water systems serving ZIP 981330.0388 mg/L
• Haloacetic acids (HAA5)Water systems serving ZIP 981330.0346 mg/L
• Total Trihalomethanes Water systems serving ZIP 981330.0391 mg/L
• Perfluorohexane sulfonate PFHXSWater systems serving ZIP 981332.44e-7 ppm
• Trichloroacetic acidWater systems serving ZIP 981330.0232 mg/L
• ArsenicWater systems serving ZIP 981335.75e-4 mg/L
• ChloroformWater systems serving ZIP 981330.0374 mg/L
• Dichloroacetic acidWater systems serving ZIP 981330.0142 mg/L
• Bromochloroacetic acidWater systems serving ZIP 981330.0013 mg/L
• BromodichloromethaneWater systems serving ZIP 981330.0038 mg/L
• Chromium (hexavalent)Water systems serving ZIP 981336.98e-4 mg/L
• DibromochloromethaneWater systems serving ZIP 981330.0014 mg/L
• Radium 226/228Water systems serving ZIP 981330.71 pCi/L
• Propylene NitrateWater systems serving ZIP 981331.9025
• Dibromoacetic acidWater systems serving ZIP 981333.27e-4 mg/L
• Propylene NitrateWater systems serving ZIP 981331.522
• BromateWater systems serving ZIP 981333.52e-4 mg/L
• ChlorateWater systems serving ZIP 981330.0679 mg/L
• BromoformWater systems serving ZIP 981334.92e-5 µg/L
• Monochloroacetic acidWater systems serving ZIP 981330.0014 ppm
• BariumWater systems serving ZIP 981330.0098 mg/L
• Monobromoacetic acidWater systems serving ZIP 981338.54e-5 mg/L
• PFAS (PFOA/PFOS)Water systems serving ZIP 981332.20e-6 mg/L
• Strontium-90 Water systems serving ZIP 981336.91e-5 pCi/L
• Chromium (hexavalent)Water systems serving ZIP 981330.0017 mg/L
• Fluorine (as sodium fluoride)Water systems serving ZIP 981330.2567
• Vanadium (as Vanadium Amino Acid Chelate)Water systems serving ZIP 981332.136
• 3,7-Dichloro-8-quinolinecarboxylic acid / QuincloracWater systems serving ZIP 981336.12e-5 mg/L
• ManganeseWater systems serving ZIP 981330.0067 mg/L