Redwood Valley Water Quality

Latest water quality information for Redwood Valley, California

Last update on March 2025

Very bad

Unsafe water with serious health risks.

Exceeds 2 EPA limits and 11 recommended standards.

Water Provider

redwood valley county water district

Owner Type

L (Local Government)

Population Served

5,200

Data Sources

2008-2023

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.

Lead

24.80 ppb

1.7x

EPA limits: 15 ppb

Above EPA regulatory threshold

Potential Health Effects

Neurotoxicity

Lead Level

24.80 ppb

1.7x

EPA limits: 15 ppb

Above EPA regulatory threshold

Potential Health Effects

Neurotoxicity

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.

Atrazine

0.4000 ppb

4.0x

Recommended: 0.1000 ppb

Above health-based recommendations

Potential Health Effects

Endocrine disruption

Boron

266.70 ppm

533.4x

Recommended: 0.5000 ppm

Above health-based recommendations

Potential Health Effects

Reproductive issues

Bromodichloromethane

5.40 ppb

90.0x

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

30.80 ppb

77.0x

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

Hexachlorobenzene

0.2000 ppb

6.7x

Recommended: 0.0300 ppb

Above health-based recommendations

Potential Health Effects

Cancer

Polychlorinated Biphenyls

0.2000 ppb

2.2x

Recommended: 0.0900 ppb

Above health-based recommendations

Potential Health Effects

Cancer

Total Thms

36.50 ppb

243.3x

Recommended: 0.1500 ppb

Above health-based recommendations

Potential Health Effects

Cancer

Other Detected Contaminants

Contaminant	Detected Level	EPA Limit	Recommended	Status
Aluminum	16.90 ppb	200 ppb	600 ppb	Within limits
Dalapon	1.70 ppb	200 ppb	200 ppb	Within limits
Dinoseb	0.7000 ppb	7 ppb	7 ppb	Within limits
Manganese	27.90 ppb	50 ppb	50 ppb	Within limits
Odor	2.80 TON	3 TON	3 TON	Within limits
Pentachlorophenol	0.1000 ppb	1 ppb	0.3000 ppb	Within limits
Ph Level	6.70 pH units	8.50 pH units	8.50 pH units	Within limits
Silvex	0.9000 ppb	50 ppb	50 ppb	Within limits
Trichlorofluoromethane	1.40 ppb	Not established	1300 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.