91201 ZIP Water Quality
Latest water quality information for ZIP Code 91201, California
Last update on March 2025
Unsafe water with serious health risks.
Exceeds 1 EPA limits and 15 recommended standards.
Contaminants exceeding EPA limits
What it means: This refers to substances in the water that are found at levels higher than what the EPA allows. The EPA (Environmental Protection Agency) is a U.S. government agency that sets legal limits for harmful contaminants to protect public health. Exceeding these limits means the water may pose health risks based on federal safety standards.
Trichloroethylene
8.40 ppbPotential Health Effects
Cancer, neurotoxicity
Contaminants exceeding recommended standards
What it means: This refers to substances in the water that are above health-based guidelines set by organizations such as the World Health Organization (WHO) and the U.S. Environmental Protection Agency (EPA). These standards, while not always legally enforceable, are based on scientific research to protect health. Exceeding them may indicate potential health concerns.
Atrazine
0.2000 ppbPotential Health Effects
Endocrine disruption
Boron
56.90 ppmPotential Health Effects
Reproductive issues
Bromodichloromethane
1.60 ppbPotential Health Effects
Cancer
Bromoform
1.40 ppbPotential Health Effects
Cancer
Chloroform
1.40 ppbPotential Health Effects
Cancer
Cobalt
468.10 ppbPotential Health Effects
Cardiovascular effects
Dibromochloromethane
2 ppbPotential Health Effects
Cancer
Hexachlorobenzene
0.2000 ppbPotential Health Effects
Cancer
Lindane
0.1000 ppbPotential Health Effects
Neurotoxicity, cancer
Polychlorinated Biphenyls
0.3000 ppbPotential Health Effects
Cancer
Sodium
36.70 ppmPotential Health Effects
Hypertension
Tetrachloroethylene
4.50 ppbPotential Health Effects
Cancer, organ damage
Total Thms
5.30 ppbPotential Health Effects
Cancer
Uranium
1.30 ppbPotential Health Effects
Cancer, kidney damage
Other Detected Contaminants
| Contaminant | Detected Level | EPA Limit | Recommended | Status |
|---|---|---|---|---|
| Alachlor | 0.4000 ppb | 2 ppb | 2 ppb | Within limits |
| Calcium | 37.30 ppm | Not established | 80 ppm | Within limits |
| Chlorate | 37.80 ppb | Not established | 210 ppb | Within limits |
| Chloride | 34.80 ppm | 250 ppm | 250 ppm | Within limits |
| Conductivity | 671.30 µS/cm | Not established | 800 µS/cm | Within limits |
| Dalapon | 4.80 ppb | 200 ppb | 200 ppb | Within limits |
| Dinoseb | 1 ppb | 7 ppb | 7 ppb | Within limits |
| Fluoride | 490.10 ppb | 4000 ppb | 2000 ppb | Within limits |
| Gross Alpha Activity | 5.70 pCi/L | 15 pCi/L | 15 pCi/L | Within limits |
| Hexachlorocyclopentadiene | 0.4000 ppb | 50 ppb | 2 ppb | Within limits |
| Magnesium | 14.50 ppm | Not established | 30 ppm | Within limits |
| Molybdenum | 2.80 ppb | Not established | 40 ppb | Within limits |
| Odor | 1.20 TON | 3 TON | 3 TON | Within limits |
| Pentachlorophenol | 0.1000 ppb | 1 ppb | 0.3000 ppb | Within limits |
| Ph Level | 4.70 pH units | 8.50 pH units | 8.50 pH units | Within limits |
| Picloram | 0.5000 ppb | 500 ppb | 166 ppb | Within limits |
| Potassium | 3.40 ppb | Not established | 5000 ppb | Within limits |
| Silica | 17 ppm | Not established | 25 ppm | Within limits |
| Silvex | 0.5000 ppb | 50 ppb | 50 ppb | Within limits |
| Specific Conductivity | 404.10 µmhos/cm | Not established | 800 µmhos/cm | Within limits |
| Strontium | 529.20 ppb | Not established | 1500 ppb | Within limits |
| Sulfate | 86 ppm | 250 ppm | 250 ppm | Within limits |
| Total Dissolved Solids | 227.80 ppm | 500 ppm | 500 ppm | Within limits |
| Trichlorofluoromethane | 2.10 ppb | Not established | 1300 ppb | Within limits |
| Turbidity | 0.2000 NTU | 1 NTU | 0.3000 NTU | Within limits |
| Zinc | 22 ppb | 5000 ppb | 5000 ppb | Within limits |
| No additional contaminants detected. | ||||
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