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27 readings
Tap water · ZIP 94401
Tap Water in San Mateo, California
ZIP 94401 · United States
Overall rating
20/100
High concern tap water rating
Utilities
1
Detected contaminants
27
Over health guideline
16
Water systems
Water systems serving ZIP 94401
Score 20 · 27 contaminants · 16 over guideline
Detected contaminants
Sorted by Oasis ingredient severity when available.
- Haloacetic acids (HAA9)Water systems serving ZIP 944010.0346 mg/L
- Haloacetic acids (HAA5)Water systems serving ZIP 944010.0362 mg/L
- Total Trihalomethanes Water systems serving ZIP 944010.0376 mg/L
- Trichloroacetic acidWater systems serving ZIP 944010.0132 mg/L
- Dichloroacetic acidWater systems serving ZIP 944010.0196 mg/L
- ChloroformWater systems serving ZIP 944010.036 mg/L
- BromodichloromethaneWater systems serving ZIP 944010.0018 mg/L
- Propylene NitrateWater systems serving ZIP 944013.2805
- Propylene NitrateWater systems serving ZIP 944012.9462
- ArsenicWater systems serving ZIP 944017.88e-5 mg/L
- BromateWater systems serving ZIP 944014.00e-4 mg/L
- Chromium (hexavalent)Water systems serving ZIP 944014.53e-5 mg/L
- DibromochloromethaneWater systems serving ZIP 944011.40e-4 mg/L
- Dibromoacetic acidWater systems serving ZIP 944012.93e-5 mg/L
- ChlorateWater systems serving ZIP 944010.1509 mg/L
- UraniumWater systems serving ZIP 944010.2063 pCi/L
- PerchlorateWater systems serving ZIP 944013.32e-4 ppm
- Aluminum FluorideWater systems serving ZIP 944019.1556
- Monochloroacetic acidWater systems serving ZIP 944017.18e-4 ppm
- BariumWater systems serving ZIP 944010.0023 mg/L
- Strontium-90 Water systems serving ZIP 944011.37e-4 pCi/L
- Aluminum FluorideWater systems serving ZIP 944010.2718
- Chromium (hexavalent)Water systems serving ZIP 944010.003 mg/L
- Benzalkonium BromideWater systems serving ZIP 944019.275
- Vanadium (as Vanadium Amino Acid Chelate)Water systems serving ZIP 944010.8438
- Molybdenum (molybdenum (VI) citrate, molybdenum (VI) bisglycinate)Water systems serving ZIP 944010.1625
- ManganeseWater systems serving ZIP 944010.0047 mg/L