Del Mar, California Water Quality Report
Water quality data for 2 water systems serving 3,959 people.
Water Source
Detected Contaminants
| Contaminant | Detected Level | EPA Limit (MCL) | Health Guideline | % of Limit | Status |
|---|---|---|---|---|---|
| lithium | 48.1 | No federal limit | 10.0 ug/L(EPA/USGS HBSL) | 481% | Above guideline |
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Compliance & Violations
Active Violations (1)
Violation
Unknown
Resolved Violations (13)
3A
Sep 1, 2025 — Sep 30, 2025
03
Jul 1, 2025 — Sep 30, 2025
03
Jul 1, 2025 — Sep 30, 2025
03
Jul 1, 2025 — Sep 30, 2025
3A
May 1, 2022 — May 31, 2022
+ 8 more resolved violations
Frequently Asked Questions
Is Del Mar tap water safe to drink?
Del Mar's water meets all EPA maximum contaminant levels. However, 1 contaminants were detected at various levels. Some residents may prefer additional filtration for peace of mind.
What contaminants are in Del Mar tap water?
1 contaminants have been detected in Del Mar's water supply across 2 water systems. See the full contaminant table above for details.
How can I improve my water quality in Del Mar?
Install a water filter rated for the specific contaminants found in Del Mar's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Del Mar have any water quality violations?
Yes, Del Mar currently has 1 active violation. See the violations section above for details.