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26 readings
Tap water · ZIP 94402
Tap Water in San Mateo, California
ZIP 94402 · United States
Overall rating
20/100
High concern tap water rating
Utilities
1
Detected contaminants
26
Over health guideline
15
Water systems
Water systems serving ZIP 94402
Score 20 · 26 contaminants · 15 over guideline
Detected contaminants
Sorted by Oasis ingredient severity when available.
- Haloacetic acids (HAA9)Water systems serving ZIP 944020.0308 mg/L
- Haloacetic acids (HAA5)Water systems serving ZIP 944020.0362 mg/L
- Total Trihalomethanes Water systems serving ZIP 944020.0408 mg/L
- Trichloroacetic acidWater systems serving ZIP 944020.0132 mg/L
- Dichloroacetic acidWater systems serving ZIP 944020.0196 mg/L
- ChloroformWater systems serving ZIP 944020.0389 mg/L
- BromodichloromethaneWater systems serving ZIP 944020.0019 mg/L
- Propylene NitrateWater systems serving ZIP 944023.2805
- Propylene NitrateWater systems serving ZIP 944022.9462
- ArsenicWater systems serving ZIP 944027.88e-5 mg/L
- BromateWater systems serving ZIP 944024.00e-4 mg/L
- Chromium (hexavalent)Water systems serving ZIP 944025.41e-5 mg/L
- DibromochloromethaneWater systems serving ZIP 944027.97e-5 mg/L
- ChlorateWater systems serving ZIP 944020.1509 mg/L
- UraniumWater systems serving ZIP 944020.2063 pCi/L
- PerchlorateWater systems serving ZIP 944023.32e-4 ppm
- Sodium AluminumWater systems serving ZIP 944029.1556
- Monochloroacetic acidWater systems serving ZIP 944027.18e-4 ppm
- BariumWater systems serving ZIP 944020.0023 mg/L
- Strontium-90 Water systems serving ZIP 944021.37e-4 pCi/L
- Chromium (hexavalent)Water systems serving ZIP 944020.003 mg/L
- Fluorine (as sodium fluoride)Water systems serving ZIP 944020.2718
- Benzalkonium BromideWater systems serving ZIP 944029.275
- Vanadium (as Vanadium Amino Acid Chelate)Water systems serving ZIP 944020.8438
- Molybdenum (molybdenum (VI) citrate, molybdenum (VI) bisglycinate)Water systems serving ZIP 944020.1625
- ManganeseWater systems serving ZIP 944020.0047 mg/L