Mountain Ranch Water Quality

Latest water quality information for Mountain Ranch, California

Last update on March 2025

Very bad

Unsafe water with serious health risks.

Exceeds 3 EPA limits and 6 recommended standards.

Water Provider

rite of passage/sierra ridge

Owner Type

P (Private)

Population Served

150

Data Sources

2008-2012

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.

Color

27.90 CU

1.9x

EPA limits: 15 CU

Above EPA regulatory threshold

Potential Health Effects

Aesthetic concern

Manganese

754 ppb

15.1x

EPA limits: 50 ppb

Above EPA regulatory threshold

Potential Health Effects

Neurological damage

Turbidity

7.60 NTU

7.6x

EPA limits: 1 NTU

Above EPA regulatory threshold

Potential Health Effects

Infection risk

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

Chloroform

1.10 ppb

2.8x

Recommended: 0.4000 ppb

Above health-based recommendations

Potential Health Effects

Cancer

Uranium

11.30 ppb

26.3x

Recommended: 0.4300 ppb

Above health-based recommendations

Potential Health Effects

Cancer, kidney damage

Other Detected Contaminants

Contaminant	Detected Level	EPA Limit	Recommended	Status
Aluminum	23.10 ppb	200 ppb	600 ppb	Within limits
Calcium	54.70 ppm	Not established	80 ppm	Within limits
Chloride	6.40 ppm	250 ppm	250 ppm	Within limits
Fluoride	177 ppb	4000 ppb	2000 ppb	Within limits
Gross Alpha Activity	11.40 pCi/L	15 pCi/L	15 pCi/L	Within limits
Iron	2.60 ppb	300 ppb	300 ppb	Within limits
Magnesium	11.90 ppm	Not established	30 ppm	Within limits
Nickel	21.20 ppb	Not established	70 ppb	Within limits
Odor	1 TON	3 TON	3 TON	Within limits
Ph Level	7.20 pH units	8.50 pH units	8.50 pH units	Within limits
Selenium	3.10 ppb	50 ppb	30 ppb	Within limits
Sodium	10.20 ppm	Not established	20 ppm	Within limits
Sulfate	116 ppm	250 ppm	250 ppm	Within limits
Toluene	64.10 ppb	1000 ppb	150 ppb	Within limits
Total Dissolved Solids	343 ppm	500 ppm	500 ppm	Within limits
Zinc	883 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.