Lancaster, Pennsylvania Water Quality Report
Water quality data for 13 water systems serving 121,592 people.
Water Source
Detected Contaminants
| Contaminant | Detected Level | EPA Limit (MCL) | Health Guideline | % of Limit | Status |
|---|---|---|---|---|---|
| PFBA | 0.015 | No federal limit | 1000.0 ug/L(EWG) | 0% | Below guideline |
| PFBS | 0.010 | No federal limit | 2000.0 ug/L(EPA Health Advisory) | 0% | Below guideline |
| PFHpA | 0.008 | No federal limit | 1000.0 ug/L(EWG) | 0% | Below guideline |
| PFHxA | 0.029 | No federal limit | 1000.0 ug/L(EWG) | 0% | Below guideline |
| PFOA | 0.024 | 0.004 ug/L | 0.090 ug/L(EWG) | 595% | 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 (3)
2A
Aug 4, 2021
4F
Aug 4, 2021
71
Jul 1, 2021
Resolved Violations (497)
31
Aug 1, 2025 — Aug 31, 2025
31
Aug 1, 2025 — Aug 31, 2025
31
Jul 1, 2025 — Jul 31, 2025
31
Jul 1, 2025 — Jul 31, 2025
31
Jun 1, 2025 — Jun 30, 2025
+ 492 more resolved violations
Frequently Asked Questions
Is Lancaster tap water safe to drink?
Lancaster'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 Lancaster tap water?
6 contaminants have been detected in Lancaster's water supply across 13 water systems. See the full contaminant table above for details.
How can I improve my water quality in Lancaster?
Install a water filter rated for the specific contaminants found in Lancaster's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Lancaster have any water quality violations?
Yes, Lancaster currently has 31 active violations. See the violations section above for details.