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Moss Beach Water Quality

Latest water quality information for Moss Beach, California

Last update on March 2025

Very bad

Unsafe water with serious health risks.

Exceeds 1 EPA limits and 10 recommended standards.

Water Provider
coastside county water district
Owner Type
L (Local Government)
Population Served
18,789
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.

Turbidity

1.20 NTU
1.2x
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.

Atrazine

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

Potential Health Effects

Endocrine disruption

Bromodichloromethane

8.80 ppb
146.7x
Recommended: 0.0600 ppb
Above health-based recommendations

Potential Health Effects

Cancer

Bromoform

2.20 ppb
4.4x
Recommended: 0.5000 ppb
Above health-based recommendations

Potential Health Effects

Cancer

Chloroform

13.80 ppb
34.5x
Recommended: 0.4000 ppb
Above health-based recommendations

Potential Health Effects

Cancer

Dibromochloromethane

8.20 ppb
82.0x
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

Lindane

0.1000 ppb
3.1x
Recommended: 0.0320 ppb
Above health-based recommendations

Potential Health Effects

Neurotoxicity, cancer

Polychlorinated Biphenyls

0.2000 ppb
2.2x
Recommended: 0.0900 ppb
Above health-based recommendations

Potential Health Effects

Cancer

Total Thms

36.60 ppb
244.0x
Recommended: 0.1500 ppb
Above health-based recommendations

Potential Health Effects

Cancer

Other Detected Contaminants

Contaminant Detected Level EPA Limit Recommended Status
Alachlor 0.5000 ppb 2 ppb 2 ppb Within limits
Calcium 11.10 ppm Not established 80 ppm Within limits
Chloride 14.80 ppm 250 ppm 250 ppm Within limits
Color 7 CU 15 CU 15 CU Within limits
Conductivity 233.70 µS/cm Not established 800 µS/cm Within limits
Dalapon 4.90 ppb 200 ppb 200 ppb Within limits
Dinoseb 0.9000 ppb 7 ppb 7 ppb Within limits
Endrin 0.1000 ppb 2 ppb 0.3000 ppb Within limits
Fluoride 267.80 ppb 4000 ppb 2000 ppb Within limits
Hexachlorocyclopentadiene 0.5000 ppb 50 ppb 2 ppb Within limits
Magnesium 3.60 ppm Not established 30 ppm Within limits
Molybdenum 1.10 ppb Not established 40 ppb Within limits
Odor 1.40 TON 3 TON 3 TON Within limits
Pentachlorophenol 0.1000 ppb 1 ppb 0.3000 ppb Within limits
Ph Level 4.80 pH units 8.50 pH units 8.50 pH units Within limits
Picloram 0.4000 ppb 500 ppb 166 ppb Within limits
Potassium 380.20 ppb Not established 5000 ppb Within limits
Silica 12.10 ppm Not established 25 ppm Within limits
Silvex 0.5000 ppb 50 ppb 50 ppb Within limits
Sodium 16 ppm Not established 20 ppm Within limits
Specific Conductivity 138.20 µmhos/cm Not established 800 µmhos/cm Within limits
Strontium 69.80 ppb Not established 1500 ppb Within limits
Total Dissolved Solids 96.60 ppm 500 ppm 500 ppm Within limits
Trichlorofluoromethane 1.70 ppb Not established 1300 ppb Within limits
No additional contaminants detected.

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