Rio Dell Water Quality

Latest water quality information for Rio Dell, California

Last update on March 2025

Acceptable water with improvement potential.

Exceeds 0 EPA limits and 5 recommended standards.

Water Provider

rio dell, city of

Owner Type

L (Local Government)

Population Served

3,300

Data Sources

2019-2023

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.

Boron

173.30 ppm

346.6x

Recommended: 0.5000 ppm

Above health-based recommendations

Potential Health Effects

Reproductive issues

Bromodichloromethane

5.10 ppb

85.0x

Recommended: 0.0600 ppb

Above health-based recommendations

Potential Health Effects

Cancer

Chloroform

15.90 ppb

39.8x

Recommended: 0.4000 ppb

Above health-based recommendations

Potential Health Effects

Cancer

Dibromochloromethane

0.9000 ppb

9.0x

Recommended: 0.1000 ppb

Above health-based recommendations

Potential Health Effects

Cancer

Total Thms

26.50 ppb

176.7x

Recommended: 0.1500 ppb

Above health-based recommendations

Potential Health Effects

Cancer

Other Detected Contaminants

Contaminant	Detected Level	EPA Limit	Recommended	Status
Calcium	36 ppm	Not established	80 ppm	Within limits
Chloride	11.10 ppm	250 ppm	250 ppm	Within limits
Conductivity	314.70 µS/cm	Not established	800 µS/cm	Within limits
Copper	51.10 ppb	1300 ppb	300 ppb	Within limits
Magnesium	11 ppm	Not established	30 ppm	Within limits
Molybdenum	0.8000 ppb	Not established	40 ppb	Within limits
Nickel	11.50 ppb	Not established	70 ppb	Within limits
Ph Level	7.30 pH units	8.50 pH units	8.50 pH units	Within limits
Potassium	1.30 ppb	Not established	5000 ppb	Within limits
Sodium	10.10 ppm	Not established	20 ppm	Within limits
Strontium	426.30 ppb	Not established	1500 ppb	Within limits
Sulfate	19.70 ppm	250 ppm	250 ppm	Within limits
Total Dissolved Solids	201.40 ppm	500 ppm	500 ppm	Within limits
Zinc	180.60 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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