91914 ZIP Water Quality

Latest water quality information for ZIP Code 91914, California

Last update on March 2025

Poor

Not legally unsafe but concerning.

Exceeds 0 EPA limits and 12 recommended standards.

Water Provider
otay water district
Owner Type
L (Local Government)
Population Served
226,413
Data Sources
2010-2024

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.

Arsenic

1.20 ppb
300.0x
Recommended: 0.004000 ppb
Above health-based recommendations

Potential Health Effects

Cancer

Boron

277.40 ppm
554.8x
Recommended: 0.5000 ppm
Above health-based recommendations

Potential Health Effects

Reproductive issues

Bromodichloromethane

6.50 ppb
108.3x
Recommended: 0.0600 ppb
Above health-based recommendations

Potential Health Effects

Cancer

Bromoform

3.30 ppb
6.6x
Recommended: 0.5000 ppb
Above health-based recommendations

Potential Health Effects

Cancer

Chloroform

5.70 ppb
14.2x
Recommended: 0.4000 ppb
Above health-based recommendations

Potential Health Effects

Cancer

Dibromochloromethane

7.20 ppb
72.0x
Recommended: 0.1000 ppb
Above health-based recommendations

Potential Health Effects

Cancer

Lead

1.50 ppb
7.5x
Recommended: 0.2000 ppb
Above health-based recommendations

Potential Health Effects

Neurotoxicity

Lead Level

1.50 ppb
7.5x
Recommended: 0.2000 ppb
Above health-based recommendations

Potential Health Effects

Neurotoxicity

Sodium

97.50 ppm
4.9x
Recommended: 20 ppm
Above health-based recommendations

Potential Health Effects

Hypertension

Total Thms

23.10 ppb
154.0x
Recommended: 0.1500 ppb
Above health-based recommendations

Potential Health Effects

Cancer

Uranium

2.50 ppb
5.8x
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 97.50 ppb 200 ppb 600 ppb Within limits
Calcium 42.80 ppm Not established 80 ppm Within limits
Chloride 87.90 ppm 250 ppm 250 ppm Within limits
Fluoride 594.60 ppb 4000 ppb 2000 ppb Within limits
Magnesium 15.40 ppm Not established 30 ppm Within limits
Molybdenum 3.40 ppb Not established 40 ppb Within limits
Ph Level 8.10 pH units 8.50 pH units 8.50 pH units Within limits
Potassium 3.60 ppb Not established 5000 ppb Within limits
Strontium 519.50 ppb Not established 1500 ppb Within limits
Sulfate 171.80 ppm 250 ppm 250 ppm Within limits
Total Dissolved Solids 449.10 ppm 500 ppm 500 ppm Within limits
Trichlorofluoromethane 0.5000 ppb Not established 1300 ppb Within limits
Zinc 200.70 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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