Paso Robles, California Water Quality Report
Water quality data for 10 water systems serving 35,953 people.
Water Source
Detected Contaminants
| Contaminant | Detected Level | EPA Limit (MCL) | Health Guideline | % of Limit | Status |
|---|---|---|---|---|---|
| lithium | 46.2 | No federal limit | 10.0 ug/L(EPA/USGS HBSL) | 462% | Above guideline |
| PFBA | 0.006 | No federal limit | 1000.0 ug/L(EWG) | 0% | Below guideline |
| PFBS | 0.008 | No federal limit | 2000.0 ug/L(EPA Health Advisory) | 0% | Below guideline |
| PFHpA | 0.006 | No federal limit | 1000.0 ug/L(EWG) | 0% | Below guideline |
| PFHxA | 0.020 | No federal limit | 1000.0 ug/L(EWG) | 0% | Below guideline |
| PFHxS | 0.005 | 0.010 ug/L | 0.001 ug/L(EWG) | 52% | Within limit |
| PFOA | 0.006 | 0.004 ug/L | 0.090 ug/L(EWG) | 158% | Above limit |
| PFPeA | 0.022 | 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 (8)
4G
Oct 17, 2024
2E
Oct 17, 2024
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Resolved Violations (150)
01
Apr 1, 2024 — Jun 30, 2024
01
Apr 1, 2024 — Jun 30, 2024
02
Jan 1, 2024 — Mar 31, 2024
02
Jan 1, 2024 — Mar 31, 2024
01
Jan 1, 2024 — Mar 31, 2024
+ 145 more resolved violations
Frequently Asked Questions
Is Paso Robles tap water safe to drink?
Paso Robles'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 Paso Robles tap water?
8 contaminants have been detected in Paso Robles's water supply across 10 water systems. See the full contaminant table above for details.
How can I improve my water quality in Paso Robles?
Install a water filter rated for the specific contaminants found in Paso Robles's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Paso Robles have any water quality violations?
Yes, Paso Robles currently has 8 active violations. See the violations section above for details.