PFAS in tap water, Erie County, Pennsylvania
None of the 12 water systems had a PFAS-4 compound above the 3 to 4 ng/L reporting limits at the latest sample. That's below the lab limit, not zero.
12 community water systems · 276,457 people served · newest sample November 19, 2025
Water systems in Erie County
| Water system | People served | PFAS-4 at the latest sample | Entry points | Latest sample |
|---|---|---|---|---|
| Erie City Water Authority | 220,001 | below the 3 to 4 ng/L reporting limit | 2 | October 18, 2023 |
| Summit Township Water Authorit | 12,500 | below the 3 to 4 ng/L reporting limit | 2 | November 4, 2024 |
| Municipal Authority of Corry | 7,800 | below the 3 to 4 ng/L reporting limit | 1 | September 23, 2024 |
| Edinboro Water Authority | 7,800 | below the 3 to 4 ng/L reporting limit | 1 | November 19, 2024 |
| Albion Borough | 5,842 | below the 3 to 4 ng/L reporting limit | 2 | August 20, 2025 |
| North East Borough Water Dept | 4,601 | below the 3 to 4 ng/L reporting limit | 1 | November 19, 2024 |
| Fairview TWP Water District 1 | 4,500 | below the 3 to 4 ng/L reporting limit | 1 | November 19, 2025 |
| Union City Municipal Authority | 4,295 | below the 3 to 4 ng/L reporting limit | 1 | November 20, 2023 |
| Fairview TWP Water Auth Dist 3 | 3,320 | below the 3 to 4 ng/L reporting limit | 1 | August 19, 2025 |
| Girard Boro Water Dept | 3,301 | below the 3 to 4 ng/L reporting limit | 3 | November 18, 2024 |
| Waterford Municipal Authority | 1,700 | below the 3 to 4 ng/L reporting limit | 1 | December 19, 2023 |
| Washington TWP Water System | 797 | below the 3 to 4 ng/L reporting limit | 1 | December 11, 2024 |
Not sure which one is yours? The systems report their own service areas to EPA. Check your water bill or your utility's Consumer Confidence Report.
ZIP codes in Erie County
Census ZIP code tabulation areas that overlap the county. A ZIP served by one system opens that system's page; a ZIP shared by several systems lists them.
How to read these numbers
We compare PFAS-4 (PFOA + PFOS + PFNA + PFHxS) with this site's 0.5 ng/L benchmark, the same line as on the European pages. UCMR 5 reporting limits are 3 to 4 ng/L. So any quantified PFAS-4 compound is above the benchmark, and a clean result reads "below the 3 to 4 ng/L reporting limit", never zero. The US legal limit is the 4 ng/L federal MCL for PFOA and PFOS, which systems must meet from April 26, 2029 ("above the 2029 federal MCL").
EPA: "UCMR 5 results do not indicate compliance or noncompliance with the PFAS drinking water standards". Samples are taken where water enters the distribution system, not at your tap. A system may have changed sources or added treatment since. Source: U.S. Environmental Protection Agency (EPA), Office of Water, PFAS National Primary Drinking Water Regulation (NPDWR). Regulation details retrieved September 19, 2026. Every system page tracks the 2029 compliance date and the proposed rescission of the PFHxS, PFNA, HFPO-DA and Hazard Index limits.
This site is a data project, not an official source. If in doubt, check with your water supplier or local authority.