Encinitas, California Water Quality Report
Water quality data for 3 water systems serving 126,903 people.
Water Source
Detected Contaminants
| Contaminant | Detected Level | EPA Limit (MCL) | Health Guideline | % of Limit | Status |
|---|---|---|---|---|---|
| lithium | 54.1 | No federal limit | 10.0 ug/L(EPA/USGS HBSL) | 541% | Above guideline |
| PFBS | 0.003 | No federal limit | 2000.0 ug/L(EPA Health Advisory) | 0% | Below guideline |
| PFHxA | 0.005 | No federal limit | 1000.0 ug/L(EWG) | 0% | Below guideline |
| PFOA | 0.004 | 0.004 ug/L | 0.090 ug/L(EWG) | 108% | Above limit |
| PFPeA | 0.005 | No federal limit | 1000.0 ug/L(EWG) | 0% | Below guideline |
Recommended Water Filters
Based on the contaminants detected in your water supply, these filtration systems are recommended:
Reverse Osmosis (RO)
Reverse osmosis systems remove up to 99% of PFAS compounds. Recommended for homes with detected PFAS.
Up to 99% PFAS removal
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Compliance & Violations
Active Violations (16)
75
Jul 31, 2025
75
Aug 29, 2024
75
Mar 5, 2023
75
Mar 5, 2023
75
Mar 5, 2023
Violation
Unknown
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Unknown
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Unknown
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Unknown
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Unknown
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Unknown
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Unknown
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Unknown
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Unknown
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Unknown
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Unknown
Resolved Violations (339)
31
Sep 1, 2025 — Sep 30, 2025
31
Jul 1, 2025 — Jul 31, 2025
31
Jun 1, 2025 — Jun 30, 2025
41
May 1, 2025 — May 31, 2025
31
Apr 1, 2025 — Apr 30, 2025
+ 334 more resolved violations
Frequently Asked Questions
Is Encinitas tap water safe to drink?
Encinitas's water has 1 contaminant detected above EPA limits. While the water is treated, residents may want to consider additional filtration.
What contaminants are in Encinitas tap water?
5 contaminants have been detected in Encinitas's water supply across 3 water systems. See the full contaminant table above for details.
How can I improve my water quality in Encinitas?
Install a water filter rated for the specific contaminants found in Encinitas's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Encinitas have any water quality violations?
Yes, Encinitas currently has 16 active violations. See the violations section above for details.