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94954 ZIP Water Quality

Latest water quality information for ZIP Code 94954, California

Last update on March 2025

Very bad

Unsafe water with serious health risks.

Exceeds 2 EPA limits and 12 recommended standards.

Water Provider
petaluma, city of
Owner Type
L (Local Government)
Population Served
63,505
Data Sources
2008-2024

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.

Ethylene Dibromide

0.2000 ppb
4.0x
EPA limits: 0.0500 ppb
Above EPA regulatory threshold

Potential Health Effects

Cancer

Iron

343.90 ppb
1.1x
EPA limits: 300 ppb
Above EPA regulatory threshold

Potential Health Effects

Aesthetic concern

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

192.30 ppm
384.6x
Recommended: 0.5000 ppm
Above health-based recommendations

Potential Health Effects

Reproductive issues

Bromodichloromethane

4 ppb
66.7x
Recommended: 0.0600 ppb
Above health-based recommendations

Potential Health Effects

Cancer

Bromoform

0.7000 ppb
1.4x
Recommended: 0.5000 ppb
Above health-based recommendations

Potential Health Effects

Cancer

Chloroform

8.50 ppb
21.2x
Recommended: 0.4000 ppb
Above health-based recommendations

Potential Health Effects

Cancer

Dibromochloromethane

2.80 ppb
28.0x
Recommended: 0.1000 ppb
Above health-based recommendations

Potential Health Effects

Cancer

Dibromochloropropane

0.2000 ppb
117.6x
Recommended: 0.001700 ppb
Above health-based recommendations

Potential Health Effects

Cancer

Lead

1.30 ppb
6.5x
Recommended: 0.2000 ppb
Above health-based recommendations

Potential Health Effects

Neurotoxicity

Lead Level

1.30 ppb
6.5x
Recommended: 0.2000 ppb
Above health-based recommendations

Potential Health Effects

Neurotoxicity

Total Thms

14.90 ppb
99.3x
Recommended: 0.1500 ppb
Above health-based recommendations

Potential Health Effects

Cancer

Turbidity

0.7000 NTU
2.3x
Recommended: 0.3000 NTU
Above health-based recommendations

Potential Health Effects

Infection risk

Other Detected Contaminants

Contaminant Detected Level EPA Limit Recommended Status
Calcium 19.10 ppm Not established 80 ppm Within limits
Chloride 9.50 ppm 250 ppm 250 ppm Within limits
Conductivity 266.70 µS/cm Not established 800 µS/cm Within limits
Fluoride 115.50 ppb 4000 ppb 2000 ppb Within limits
Magnesium 12.20 ppm Not established 30 ppm Within limits
Odor 2.70 TON 3 TON 3 TON Within limits
Ph Level 8.10 pH units 8.50 pH units 8.50 pH units Within limits
Potassium 919.90 ppb Not established 5000 ppb Within limits
Silica 12.80 ppm Not established 25 ppm Within limits
Sodium 16.80 ppm Not established 20 ppm Within limits
Strontium 180.60 ppb Not established 1500 ppb Within limits
Sulfate 14.10 ppm 250 ppm 250 ppm Within limits
Total Dissolved Solids 163.40 ppm 500 ppm 500 ppm Within limits
Zinc 103.60 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

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.

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