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Foothill Ranch Water Quality

Latest water quality information for Foothill Ranch, California

Last update on March 2025

Poor

Not legally unsafe but concerning.

Exceeds 0 EPA limits and 13 recommended standards.

Water Provider
irvine ranch water district
Owner Type
L (Local Government)
Population Served
452,772
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.

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

97.50 ppm
195.0x
Recommended: 0.5000 ppm
Above health-based recommendations

Potential Health Effects

Reproductive issues

Bromochloromethane

0.2000 ppb
3.3x
Recommended: 0.0600 ppb
Above health-based recommendations

Potential Health Effects

Possible organ damage

Bromodichloromethane

5.50 ppb
91.7x
Recommended: 0.0600 ppb
Above health-based recommendations

Potential Health Effects

Cancer

Bromoform

2 ppb
4.0x
Recommended: 0.5000 ppb
Above health-based recommendations

Potential Health Effects

Cancer

Cadmium

0.2000 ppb
5.0x
Recommended: 0.0400 ppb
Above health-based recommendations

Potential Health Effects

Kidney damage, cancer

Chloroform

5.10 ppb
12.7x
Recommended: 0.4000 ppb
Above health-based recommendations

Potential Health Effects

Cancer

Cobalt

139 ppb
2.0x
Recommended: 70 ppb
Above health-based recommendations

Potential Health Effects

Cardiovascular effects

Dibromochloromethane

5.90 ppb
59.0x
Recommended: 0.1000 ppb
Above health-based recommendations

Potential Health Effects

Cancer

Lead

0.4000 ppb
2.0x
Recommended: 0.2000 ppb
Above health-based recommendations

Potential Health Effects

Neurotoxicity

Lead Level

0.4000 ppb
2.0x
Recommended: 0.2000 ppb
Above health-based recommendations

Potential Health Effects

Neurotoxicity

Sodium

55.50 ppm
2.8x
Recommended: 20 ppm
Above health-based recommendations

Potential Health Effects

Hypertension

Thallium

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

Potential Health Effects

Organ damage, neurotoxicity

Total Thms

18.10 ppb
120.7x
Recommended: 0.1500 ppb
Above health-based recommendations

Potential Health Effects

Cancer

Other Detected Contaminants

Contaminant Detected Level EPA Limit Recommended Status
Antimony 0.5000 ppb 6 ppb 1 ppb Within limits
Barium 47.50 ppb 2000 ppb 2000 ppb Within limits
Calcium 28.80 ppm Not established 80 ppm Within limits
Chlorate 97.10 ppb Not established 210 ppb Within limits
Chloride 40.40 ppm 250 ppm 250 ppm Within limits
Color 2.20 CU 15 CU 15 CU Within limits
Conductivity 579 µS/cm Not established 800 µS/cm Within limits
Dibromomethane 0.1000 ppb Not established 0.1000 ppb Within limits
Dichloromethane 0.2000 ppb 5 ppb 4 ppb Within limits
Fluoride 347 ppb 4000 ppb 2000 ppb Within limits
Gross Beta Activity 2.10 pCi/L 50 pCi/L 50 pCi/L Within limits
Magnesium 10 ppm Not established 30 ppm Within limits
Molybdenum 3.80 ppb Not established 40 ppb Within limits
Naphthalene 0.1000 ppb 100 ppb 100 ppb Within limits
Nickel 2.90 ppb Not established 70 ppb Within limits
Odor 1.10 TON 3 TON 3 TON Within limits
Ph Level 5.10 pH units 8.50 pH units 8.50 pH units Within limits
Potassium 5.30 ppb Not established 5000 ppb Within limits
Selenium 0.8000 ppb 50 ppb 30 ppb Within limits
Silica 11.30 ppm Not established 25 ppm Within limits
Silver 0.2000 ppb 100 ppb 100 ppb Within limits
Specific Conductivity 218 µmhos/cm Not established 800 µmhos/cm Within limits
Strontium 395 ppb Not established 1500 ppb Within limits
Sulfate 75.10 ppm 250 ppm 250 ppm Within limits
Toluene 0.1000 ppb 1000 ppb 150 ppb Within limits
Total Dissolved Solids 228 ppm 500 ppm 500 ppm Within limits
Vanadium 1.40 ppb 21 ppb 21 ppb Within limits
Zinc 106 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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