Philadelphia, Pennsylvania Water Quality Report
Water quality data for 1 water system serving 1,600,000 people.
Water Source
Detected Contaminants
| Contaminant | Detected Level | EPA Limit (MCL) | Health Guideline | % of Limit | Status |
|---|---|---|---|---|---|
| PFBA | 0.008 | 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 | 0.003 | No federal limit | 1000.0 ug/L(EWG) | 0% | Below guideline |
| PFHxA | 0.009 | No federal limit | 1000.0 ug/L(EWG) | 0% | Below guideline |
| PFNA | 0.004 | 0.010 ug/L | — | 45% | Within limit |
| PFOA | 0.008 | 0.004 ug/L | 0.090 ug/L(EWG) | 203% | Above limit |
| PFOS | 0.006 | 0.004 ug/L | 0.300 ug/L(EWG) | 150% | Above limit |
| PFPeA | 0.010 | 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 (1)
Violation
Unknown
Resolved Violations (129)
38
Sep 1, 2025 — Sep 30, 2025
38
Dec 1, 2024 — Dec 31, 2024
38
Dec 1, 2024 — Dec 31, 2024
38
Jun 1, 2023 — Jun 30, 2023
38
Jun 1, 2023 — Jun 30, 2023
+ 124 more resolved violations
Frequently Asked Questions
Is Philadelphia tap water safe to drink?
Philadelphia's water has 2 contaminants detected above EPA limits. While the water is treated, residents may want to consider additional filtration.
What contaminants are in Philadelphia tap water?
8 contaminants have been detected in Philadelphia's water supply across 1 water system. See the full contaminant table above for details.
How can I improve my water quality in Philadelphia?
Install a water filter rated for the specific contaminants found in Philadelphia's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Philadelphia have any water quality violations?
Yes, Philadelphia currently has 1 active violation. See the violations section above for details.