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Graton Water Quality

Latest water quality information for Graton, California

Last update on March 2025

Ok

Acceptable water with improvement potential.

Exceeds 0 EPA limits and 6 recommended standards.

Water Provider
downtown graton mutual water system
Owner Type
P (Private)
Population Served
110
Data Sources
2011-2022

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.

Bromodichloromethane

2.20 ppb
36.7x
Recommended: 0.0600 ppb
Above health-based recommendations

Potential Health Effects

Cancer

Chloroform

1.20 ppb
3.0x
Recommended: 0.4000 ppb
Above health-based recommendations

Potential Health Effects

Cancer

Dibromochloromethane

2.80 ppb
28.0x
Recommended: 0.1000 ppb
Above health-based recommendations

Potential Health Effects

Cancer

Lead

1.70 ppb
8.5x
Recommended: 0.2000 ppb
Above health-based recommendations

Potential Health Effects

Neurotoxicity

Lead Level

1.70 ppb
8.5x
Recommended: 0.2000 ppb
Above health-based recommendations

Potential Health Effects

Neurotoxicity

Total Thms

4.90 ppb
32.7x
Recommended: 0.1500 ppb
Above health-based recommendations

Potential Health Effects

Cancer

Other Detected Contaminants

Contaminant Detected Level EPA Limit Recommended Status
Copper 83.40 ppb 1300 ppb 300 ppb Within limits
No additional contaminants detected.

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