San Diego, Texas Water Quality Report
Water quality data for 2 water systems serving 6,836 people.
Water Source
Detected Contaminants
| Contaminant | Detected Level | EPA Limit (MCL) | Health Guideline | % of Limit | Status |
|---|---|---|---|---|---|
| lithium | 75.9 | No federal limit | 10.0 ug/L(EPA/USGS HBSL) | 759% | Above guideline |
Get a Free Water Quality Consultation
Connect with a certified water treatment professional in San Diego, Texas.
Get Water Quality Alerts
Be the first to know when water quality changes in San Diego.
Compliance & Violations
Active Violations (28)
75
Jun 30, 2025
75
Jun 30, 2025
4G
Oct 17, 2024
2E
Oct 17, 2024
2E
Oct 17, 2024
2E
Oct 17, 2024
4G
Oct 17, 2024
4G
Oct 17, 2024
2E
Oct 17, 2024
4G
Oct 17, 2024
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Resolved Violations (56)
75
Apr 3, 2025
75
Apr 3, 2025
75
Apr 15, 2024
75
Apr 15, 2024
02
Apr 1, 2024 — Jun 30, 2024
+ 51 more resolved violations
Frequently Asked Questions
Is San Diego tap water safe to drink?
San Diego'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 San Diego tap water?
1 contaminants have been detected in San Diego's water supply across 2 water systems. See the full contaminant table above for details.
How can I improve my water quality in San Diego?
Install a water filter rated for the specific contaminants found in San Diego's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does San Diego have any water quality violations?
Yes, San Diego currently has 28 active violations. See the violations section above for details.