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San Gabriel Water Quality

Latest water quality information for San Gabriel, California

Last update on March 2025

Poor

Not legally unsafe but concerning.

Exceeds 0 EPA limits and 13 recommended standards.

Water Provider
cal/am water company - san marino
Owner Type
P (Private)
Population Served
47,695
Data Sources
2012-2024

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.

Arsenic

1.30 ppb
325.0x
Recommended: 0.004000 ppb
Above health-based recommendations

Potential Health Effects

Cancer

Boron

195.40 ppm
390.8x
Recommended: 0.5000 ppm
Above health-based recommendations

Potential Health Effects

Reproductive issues

Bromodichloromethane

1.10 ppb
18.3x
Recommended: 0.0600 ppb
Above health-based recommendations

Potential Health Effects

Cancer

Bromoform

0.6000 ppb
1.2x
Recommended: 0.5000 ppb
Above health-based recommendations

Potential Health Effects

Cancer

Chloroform

1.10 ppb
2.8x
Recommended: 0.4000 ppb
Above health-based recommendations

Potential Health Effects

Cancer

Dibromochloromethane

1.10 ppb
11.0x
Recommended: 0.1000 ppb
Above health-based recommendations

Potential Health Effects

Cancer

Lead

1.90 ppb
9.5x
Recommended: 0.2000 ppb
Above health-based recommendations

Potential Health Effects

Neurotoxicity

Lead Level

1.90 ppb
9.5x
Recommended: 0.2000 ppb
Above health-based recommendations

Potential Health Effects

Neurotoxicity

Sodium

51.60 ppm
2.6x
Recommended: 20 ppm
Above health-based recommendations

Potential Health Effects

Hypertension

Tetrachloroethylene

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

Potential Health Effects

Cancer, organ damage

Total Thms

4.60 ppb
30.7x
Recommended: 0.1500 ppb
Above health-based recommendations

Potential Health Effects

Cancer

Trichloroethylene

0.6000 ppb
1.5x
Recommended: 0.4000 ppb
Above health-based recommendations

Potential Health Effects

Cancer, neurotoxicity

Uranium

4.40 ppb
10.2x
Recommended: 0.4300 ppb
Above health-based recommendations

Potential Health Effects

Cancer, kidney damage

Other Detected Contaminants

Contaminant Detected Level EPA Limit Recommended Status
Calcium 31.30 ppm Not established 80 ppm Within limits
Chloride 24.20 ppm 250 ppm 250 ppm Within limits
Conductivity 472.70 µS/cm Not established 800 µS/cm Within limits
Fluoride 888.50 ppb 4000 ppb 2000 ppb Within limits
Iron 282.70 ppb 300 ppb 300 ppb Within limits
Magnesium 6.50 ppm Not established 30 ppm Within limits
Manganese 2.40 ppb 50 ppb 50 ppb Within limits
Molybdenum 6.40 ppb Not established 40 ppb Within limits
Nickel 18.60 ppb Not established 70 ppb Within limits
Ph Level 8.10 pH units 8.50 pH units 8.50 pH units Within limits
Potassium 881.80 ppb Not established 5000 ppb Within limits
Silica 22.10 ppm Not established 25 ppm Within limits
Strontium 249.70 ppb Not established 1500 ppb Within limits
Sulfate 43.90 ppm 250 ppm 250 ppm Within limits
Total Dissolved Solids 272.90 ppm 500 ppm 500 ppm Within limits
Trichlorofluoromethane 2.60 ppb Not established 1300 ppb Within limits
Vanadium 12.20 ppb 21 ppb 21 ppb Within limits
Zinc 203.20 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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