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Stockton Water Quality

Latest water quality information for Stockton, California

Last update on March 2025

Ok

Acceptable water with improvement potential.

Exceeds 0 EPA limits and 8 recommended standards.

Water Provider
city of stockton
Owner Type
L (Local Government)
Population Served
183,046
Data Sources
2012-2023

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.

Bromodichloromethane

5.40 ppb
90.0x
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

19.70 ppb
49.2x
Recommended: 0.4000 ppb
Above health-based recommendations

Potential Health Effects

Cancer

Dibromochloromethane

4 ppb
40.0x
Recommended: 0.1000 ppb
Above health-based recommendations

Potential Health Effects

Cancer

Lead

1.20 ppb
6.0x
Recommended: 0.2000 ppb
Above health-based recommendations

Potential Health Effects

Neurotoxicity

Lead Level

1.20 ppb
6.0x
Recommended: 0.2000 ppb
Above health-based recommendations

Potential Health Effects

Neurotoxicity

Total Thms

30.80 ppb
205.3x
Recommended: 0.1500 ppb
Above health-based recommendations

Potential Health Effects

Cancer

Uranium

2.60 ppb
6.0x
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 9.80 ppm Not established 80 ppm Within limits
Chloride 10.70 ppm 250 ppm 250 ppm Within limits
Conductivity 193.70 µS/cm Not established 800 µS/cm Within limits
Magnesium 3.50 ppm Not established 30 ppm Within limits
Molybdenum 0.2000 ppb Not established 40 ppb Within limits
Ph Level 5.30 pH units 8.50 pH units 8.50 pH units Within limits
Potassium 818.70 ppb Not established 5000 ppb Within limits
Sodium 9.70 ppm Not established 20 ppm Within limits
Specific Conductivity 142.60 µmhos/cm Not established 800 µmhos/cm Within limits
Strontium 286.10 ppb Not established 1500 ppb Within limits
Total Dissolved Solids 84.60 ppm 500 ppm 500 ppm Within limits
Zinc 140.70 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

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Reverse Osmosis

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