Tap Water in Napa, California

Overall rating

High concern tap water rating

Water systems

• Water systems serving ZIP 94559

  Score 19 · 29 contaminants · 19 over guideline

• ArsenicWater systems serving ZIP 945590.0065 mg/L
• Haloacetic acids (HAA9)Water systems serving ZIP 945590.0442 mg/L
• Total Trihalomethanes Water systems serving ZIP 945590.0579 mg/L
• Haloacetic acids (HAA5)Water systems serving ZIP 945590.0362 mg/L
• BromodichloromethaneWater systems serving ZIP 945590.0139 mg/L
• Trichloroacetic acidWater systems serving ZIP 945590.021 mg/L
• ChloroformWater systems serving ZIP 945590.04 mg/L
• Dichloroacetic acidWater systems serving ZIP 945590.0184 mg/L
• DibromochloromethaneWater systems serving ZIP 945590.0043 mg/L
• Dibromoacetic acidWater systems serving ZIP 945594.35e-4 mg/L
• CadmiumWater systems serving ZIP 945593.11e-4 mg/L
• Propylene NitrateWater systems serving ZIP 945590.47
• Selenium (as selenium dioxide from ferment media)Water systems serving ZIP 9455978.6667
• Chromium (hexavalent)Water systems serving ZIP 945593.82e-5 mg/L
• BariumWater systems serving ZIP 945590.77 mg/L
• Propylene NitrateWater systems serving ZIP 945590.124
• UraniumWater systems serving ZIP 945590.2714 pCi/L
• Sodium AluminumWater systems serving ZIP 94559362.6
• ChlorateWater systems serving ZIP 945590.0914 mg/L
• BromoformWater systems serving ZIP 945598.65e-5 µg/L
• Monochloroacetic acidWater systems serving ZIP 945592.87e-4 ppm
• Strontium-90 Water systems serving ZIP 945591.59e-4 pCi/L
• Chromium (hexavalent)Water systems serving ZIP 945591.61e-4 mg/L
• Lithium DrierWater systems serving ZIP 945591.4571
• Fluorine (as sodium fluoride)Water systems serving ZIP 945590.0875
• Benzalkonium BromideWater systems serving ZIP 9455927
• Vanadium (as Vanadium Amino Acid Chelate)Water systems serving ZIP 945591.8667
• Molybdenum (molybdenum (VI) citrate, molybdenum (VI) bisglycinate)Water systems serving ZIP 945590.9125
• ManganeseWater systems serving ZIP 945593.9278 mg/L