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91768 ZIP Water Quality

Latest water quality information for ZIP Code 91768, California

Last update on March 2025

Ok

Acceptable water with improvement potential.

Exceeds 0 EPA limits and 10 recommended standards.

Water Provider
pomona - city, water dept.
Owner Type
L (Local Government)
Population Served
151,713
Data Sources
2012-2022

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.

Good news! No contaminants were found to exceed EPA limits.

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.

Boron

55.40 ppm
110.8x
Recommended: 0.5000 ppm
Above health-based recommendations

Potential Health Effects

Reproductive issues

Bromodichloromethane

2.90 ppb
48.3x
Recommended: 0.0600 ppb
Above health-based recommendations

Potential Health Effects

Cancer

Bromoform

2.10 ppb
4.2x
Recommended: 0.5000 ppb
Above health-based recommendations

Potential Health Effects

Cancer

Chloroform

2.90 ppb
7.2x
Recommended: 0.4000 ppb
Above health-based recommendations

Potential Health Effects

Cancer

Dibromochloromethane

3.50 ppb
35.0x
Recommended: 0.1000 ppb
Above health-based recommendations

Potential Health Effects

Cancer

Hexachlorobenzene

0.2000 ppb
6.7x
Recommended: 0.0300 ppb
Above health-based recommendations

Potential Health Effects

Cancer

Polychlorinated Biphenyls

0.2000 ppb
2.2x
Recommended: 0.0900 ppb
Above health-based recommendations

Potential Health Effects

Cancer

Tetrachloroethylene

0.7000 ppb
11.7x
Recommended: 0.0600 ppb
Above health-based recommendations

Potential Health Effects

Cancer, organ damage

Total Thms

11.10 ppb
74.0x
Recommended: 0.1500 ppb
Above health-based recommendations

Potential Health Effects

Cancer

Trichloroethylene

1 ppb
2.5x
Recommended: 0.4000 ppb
Above health-based recommendations

Potential Health Effects

Cancer, neurotoxicity

Other Detected Contaminants

Contaminant Detected Level EPA Limit Recommended Status
Aluminum 29.90 ppb 200 ppb 600 ppb Within limits
Calcium 38.20 ppm Not established 80 ppm Within limits
Chlorate 45 ppb Not established 210 ppb Within limits
Chloride 54.10 ppm 250 ppm 250 ppm Within limits
Cobalt 0.7000 ppb Not established 70 ppb Within limits
Conductivity 662 µS/cm Not established 800 µS/cm Within limits
Dalapon 2 ppb 200 ppb 200 ppb Within limits
Fluoride 196.50 ppb 4000 ppb 2000 ppb Within limits
Hexachlorocyclopentadiene 0.1000 ppb 50 ppb 2 ppb Within limits
Magnesium 8.40 ppm Not established 30 ppm Within limits
Molybdenum 1.80 ppb Not established 40 ppb Within limits
Perchlorate 0.3000 ppb Not established 1 ppb Within limits
Ph Level 5.90 pH units 8.50 pH units 8.50 pH units Within limits
Picloram 0.2000 ppb 500 ppb 166 ppb Within limits
Potassium 1.30 ppb Not established 5000 ppb Within limits
Sodium 14.60 ppm Not established 20 ppm Within limits
Specific Conductivity 466.70 µmhos/cm Not established 800 µmhos/cm Within limits
Strontium 488.30 ppb Not established 1500 ppb Within limits
Sulfate 30.10 ppm 250 ppm 250 ppm Within limits
Total Dissolved Solids 219.40 ppm 500 ppm 500 ppm Within limits
Trichlorofluoromethane 1.60 ppb Not established 1300 ppb Within limits
Zinc 22.70 ppb 5000 ppb 5000 ppb Within limits
No additional contaminants detected.

How to best protect from water pollution?

Reduce your water pollution exposure in California

Carbon Filter

Carbon filters are effective at removing many common contaminants including chlorine, sediment, volatile organic compounds (VOCs), and improves taste and odor.

Reverse Osmosis

Reverse osmosis systems can remove up to 99% of dissolved contaminants from water including heavy metals, fluoride, nitrates, and arsenic.

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