MyCleanWater

Rancho Santa Fe, California Water Quality Report

Water quality data for 3 water systems serving 21,699 people.

85
Good
out of 100

Water Source

3
Water Systems
22K
People Served
Surface water, Ground water
Water Source

Detected Contaminants

ContaminantDetected LevelEPA Limit (MCL)Health Guideline% of LimitStatus
lithium39.8 No federal limit10.0 ug/L(EPA/USGS HBSL)
398%
Above guideline
PFHxA0.004 No federal limit1000.0 ug/L(EWG)
0%
Below guideline
PFPeA0.004 No federal limit1000.0 ug/L(EWG)
0%
Below guideline

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Compliance & Violations

Active Violations (14)

Violation

Unknown

minor

Violation

Unknown

minor

Violation

Unknown

minor

Violation

Unknown

minor

Violation

Unknown

minor

Violation

Unknown

minor

Violation

Unknown

minor

Violation

Unknown

minor

Violation

Unknown

minor

Violation

Unknown

minor

Violation

Unknown

minor

Violation

Unknown

minor

Violation

Unknown

minor

Violation

Unknown

minor

Resolved Violations (243)

4B

Jul 1, 2025

minor

4B

Jul 1, 2025

minor

4B

Jun 1, 2025

minor

4B

Jun 1, 2025

minor

4B

Apr 1, 2025

minor

+ 238 more resolved violations

Frequently Asked Questions

Is Rancho Santa Fe tap water safe to drink?

Rancho Santa Fe's water meets all EPA maximum contaminant levels. However, 3 contaminants were detected at various levels. Some residents may prefer additional filtration for peace of mind.

What contaminants are in Rancho Santa Fe tap water?

3 contaminants have been detected in Rancho Santa Fe's water supply across 3 water systems. See the full contaminant table above for details.

How can I improve my water quality in Rancho Santa Fe?

Install a water filter rated for the specific contaminants found in Rancho Santa Fe's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.

Does Rancho Santa Fe have any water quality violations?

Yes, Rancho Santa Fe currently has 14 active violations. See the violations section above for details.