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Gridley Water Quality

Latest water quality information for Gridley, California

Last update on March 2025

Ok

Acceptable water with improvement potential.

Exceeds 0 EPA limits and 6 recommended standards.

Water Provider
city of gridley
Owner Type
L (Local Government)
Population Served
7,246
Data Sources
2014-2021

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

2 ppb
500.0x
Recommended: 0.004000 ppb
Above health-based recommendations

Potential Health Effects

Cancer

Atrazine

0.2000 ppb
2.0x
Recommended: 0.1000 ppb
Above health-based recommendations

Potential Health Effects

Endocrine disruption

Bromoform

1.20 ppb
2.4x
Recommended: 0.5000 ppb
Above health-based recommendations

Potential Health Effects

Cancer

Chloroform

0.5000 ppb
1.2x
Recommended: 0.4000 ppb
Above health-based recommendations

Potential Health Effects

Cancer

Dibromochloromethane

0.6000 ppb
6.0x
Recommended: 0.1000 ppb
Above health-based recommendations

Potential Health Effects

Cancer

Total Thms

1.50 ppb
10.0x
Recommended: 0.1500 ppb
Above health-based recommendations

Potential Health Effects

Cancer

Other Detected Contaminants

Contaminant Detected Level EPA Limit Recommended Status
Calcium 11.30 ppm Not established 80 ppm Within limits
Chloride 4 ppm 250 ppm 250 ppm Within limits
Dinoseb 1.60 ppb 7 ppb 7 ppb Within limits
Fluoride 430.10 ppb 4000 ppb 2000 ppb Within limits
Magnesium 7.30 ppm Not established 30 ppm Within limits
Ph Level 7.80 pH units 8.50 pH units 8.50 pH units Within limits
Sodium 5.80 ppm Not established 20 ppm Within limits
Specific Conductivity 173.70 µmhos/cm Not established 800 µmhos/cm Within limits
Trichlorofluoromethane 2.40 ppb Not established 1300 ppb Within limits
Turbidity 0.2000 NTU 1 NTU 0.3000 NTU 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.