Los Banos Water Quality

Latest water quality information for Los Banos, California

Last update on March 2025

Very bad

Unsafe water with serious health risks.

Exceeds 1 EPA limits and 10 recommended standards.

Water Provider

city of los banos

Owner Type

L (Local Government)

Population Served

44,391

Data Sources

2013-2024

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.

Radon

420 pCi/L

1.4x

EPA limits: 300 pCi/L

Above EPA regulatory threshold

Potential Health Effects

Cancer

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

5.60 ppb

1400.0x

Recommended: 0.004000 ppb

Above health-based recommendations

Potential Health Effects

Cancer

Boron

778.30 ppm

1556.6x

Recommended: 0.5000 ppm

Above health-based recommendations

Potential Health Effects

Reproductive issues

Bromodichloromethane

0.5000 ppb

8.3x

Recommended: 0.0600 ppb

Above health-based recommendations

Potential Health Effects

Cancer

Bromoform

4.60 ppb

9.2x

Recommended: 0.5000 ppb

Above health-based recommendations

Potential Health Effects

Cancer

Chloroform

0.6000 ppb

1.5x

Recommended: 0.4000 ppb

Above health-based recommendations

Potential Health Effects

Cancer

Dibromochloromethane

1.20 ppb

12.0x

Recommended: 0.1000 ppb

Above health-based recommendations

Potential Health Effects

Cancer

Sodium

178.20 ppm

8.9x

Recommended: 20 ppm

Above health-based recommendations

Potential Health Effects

Hypertension

Total Thms

6.10 ppb

40.7x

Recommended: 0.1500 ppb

Above health-based recommendations

Potential Health Effects

Cancer

Uranium

1.80 ppb

4.2x

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	3 ppm	Not established	80 ppm	Within limits
Chlorate	46.60 ppb	Not established	210 ppb	Within limits
Chloride	87 ppm	250 ppm	250 ppm	Within limits
Cobalt	0.6000 ppb	Not established	70 ppb	Within limits
Conductivity	779.80 µS/cm	Not established	800 µS/cm	Within limits
Fluoride	268 ppb	4000 ppb	2000 ppb	Within limits
Gross Alpha Activity	11.50 pCi/L	15 pCi/L	15 pCi/L	Within limits
Magnesium	1.70 ppm	Not established	30 ppm	Within limits
Molybdenum	0.3000 ppb	Not established	40 ppb	Within limits
Ph Level	7.70 pH units	8.50 pH units	8.50 pH units	Within limits
Potassium	251.30 ppb	Not established	5000 ppb	Within limits
Strontium	41.50 ppb	Not established	1500 ppb	Within limits
Sulfate	78.20 ppm	250 ppm	250 ppm	Within limits
Total Dissolved Solids	457.60 ppm	500 ppm	500 ppm	Within limits
Vanadium	10.60 ppb	21 ppb	21 ppb	Within limits
Zinc	54.80 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.