Morro Bay Water Quality

Latest water quality information for Morro Bay, California

Last update on March 2025

Acceptable water with improvement potential.

Exceeds 0 EPA limits and 7 recommended standards.

Water Provider

morro bay pw dept - water division

Owner Type

L (Local Government)

Population Served

15,543

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.

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

166 ppm

332.0x

Recommended: 0.5000 ppm

Above health-based recommendations

Potential Health Effects

Reproductive issues

Bromodichloromethane

8.70 ppb

145.0x

Recommended: 0.0600 ppb

Above health-based recommendations

Potential Health Effects

Cancer

Bromoform

7.50 ppb

15.0x

Recommended: 0.5000 ppb

Above health-based recommendations

Potential Health Effects

Cancer

Chloroform

5.50 ppb

13.8x

Recommended: 0.4000 ppb

Above health-based recommendations

Potential Health Effects

Cancer

Dibromochloromethane

13.10 ppb

131.0x

Recommended: 0.1000 ppb

Above health-based recommendations

Potential Health Effects

Cancer

Sodium

95.50 ppm

4.8x

Recommended: 20 ppm

Above health-based recommendations

Potential Health Effects

Hypertension

Total Thms

35 ppb

233.3x

Recommended: 0.1500 ppb

Above health-based recommendations

Potential Health Effects

Cancer

Other Detected Contaminants

Contaminant	Detected Level	EPA Limit	Recommended	Status
Calcium	16 ppm	Not established	80 ppm	Within limits
Chloride	44.90 ppm	250 ppm	250 ppm	Within limits
Cobalt	0.6000 ppb	Not established	70 ppb	Within limits
Conductivity	682 µS/cm	Not established	800 µS/cm	Within limits
Magnesium	9.20 ppm	Not established	30 ppm	Within limits
Molybdenum	1.50 ppb	Not established	40 ppb	Within limits
Nickel	7 ppb	Not established	70 ppb	Within limits
Ph Level	8.20 pH units	8.50 pH units	8.50 pH units	Within limits
Potassium	2.40 ppb	Not established	5000 ppb	Within limits
Specific Conductivity	760.40 µmhos/cm	Not established	800 µmhos/cm	Within limits
Strontium	144.80 ppb	Not established	1500 ppb	Within limits
Sulfate	68 ppm	250 ppm	250 ppm	Within limits
Total Dissolved Solids	222.70 ppm	500 ppm	500 ppm	Within limits
Trichlorofluoromethane	2 ppb	Not established	1300 ppb	Within limits
Zinc	128.10 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.