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95991 ZIP Water Quality

Latest water quality information for ZIP Code 95991, California

Last update on March 2025

Very bad

Unsafe water with serious health risks.

Exceeds 2 EPA limits and 9 recommended standards.

Water Provider
city of yuba city
Owner Type
L (Local Government)
Population Served
75,322
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.

Iron

642.60 ppb
2.1x
EPA limits: 300 ppb
Above EPA regulatory threshold

Potential Health Effects

Aesthetic concern

Turbidity

9.30 NTU
9.3x
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

4.30 ppb
1075.0x
Recommended: 0.004000 ppb
Above health-based recommendations

Potential Health Effects

Cancer

Atrazine

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

Potential Health Effects

Endocrine disruption

Boron

163.50 ppm
327.0x
Recommended: 0.5000 ppm
Above health-based recommendations

Potential Health Effects

Reproductive issues

Bromodichloromethane

2.40 ppb
40.0x
Recommended: 0.0600 ppb
Above health-based recommendations

Potential Health Effects

Cancer

Chloroform

22.10 ppb
55.2x
Recommended: 0.4000 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

Total Thms

23 ppb
153.3x
Recommended: 0.1500 ppb
Above health-based recommendations

Potential Health Effects

Cancer

Other Detected Contaminants

Contaminant Detected Level EPA Limit Recommended Status
Aluminum 199.50 ppb 200 ppb 600 ppb Within limits
Calcium 11.10 ppm Not established 80 ppm Within limits
Chloride 5.80 ppm 250 ppm 250 ppm Within limits
Color 4.50 CU 15 CU 15 CU Within limits
Conductivity 148 µS/cm Not established 800 µS/cm Within limits
Dalapon 2.10 ppb 200 ppb 200 ppb Within limits
Dinoseb 0.6000 ppb 7 ppb 7 ppb Within limits
Fluoride 541.60 ppb 4000 ppb 2000 ppb Within limits
Hexachlorocyclopentadiene 0.7000 ppb 50 ppb 2 ppb Within limits
Magnesium 3 ppm Not established 30 ppm Within limits
Manganese 17.20 ppb 50 ppb 50 ppb Within limits
O Xylene 0.7000 ppb 10000 ppb 10000 ppb Within limits
Odor 2.10 TON 3 TON 3 TON Within limits
Ph Level 7.80 pH units 8.50 pH units 8.50 pH units Within limits
Picloram 0.5000 ppb 500 ppb 166 ppb Within limits
Potassium 1.30 ppb Not established 5000 ppb Within limits
Silica 11.40 ppm Not established 25 ppm Within limits
Silvex 0.5000 ppb 50 ppb 50 ppb Within limits
Sodium 10.70 ppm Not established 20 ppm Within limits
Specific Conductivity 97.40 µmhos/cm Not established 800 µmhos/cm Within limits
Strontium 72 ppb Not established 1500 ppb Within limits
Total Dissolved Solids 58.40 ppm 500 ppm 500 ppm Within limits
Zinc 12.50 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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