West Virginia PFAS results from EPA's final data
Report published Nov 14, 2026 · EPA UCMR 5 final data file of Oct 15, 2026 (samples collected 2023–2025) · Method · National results →
10 West Virginia water systems serving 99,088 people had PFAS above a 2024 federal limit in EPA's final round of nationwide PFAS testing: 10% of the 99 West Virginia systems tested, compared with 11% nationally.
Highest PFOA or PFOS averages in West Virginia
- Lubeck Public Service District Washington · PFOA89.8 ppt
- Parkersburg Utility Board Parkersburg · PFOA29.1 ppt
- Williamstown Water Dept Williamstown · PFOA26.1 ppt
- Wvaw – Walnut Grove Utilities Charles Town · PFOS14.9 ppt
- Pleasants County Public Service District St. Marys · PFOA9.55 ppt
- New Martinsville Water System New Martinsville · PFOA8 ppt
- Pennsboro Water System Pennsboro · PFOA7.25 ppt
- Mineral Wells Public Service District Mineralwells · PFOA6.75 ppt
- Weirton Area Water Board Weirton · PFOS5.85 ppt
- Union Williams Public Service District Waverly · PFOA5.65 ppt
- Claywood Park Public Service District Parkersburg · PFOA3.98 ppt
- City of Ripley Ripley · PFOA3.58 ppt
- Southern Jackson County Public Service District Ripley · PFOA2.5 ppt
- Ravenswood Municipal Water Works Ravenswood · PFOA2.4 ppt
- City of Wellsburg Wellsburg · PFOA2.3 ppt
Chart data as a table
| System | ppt |
|---|---|
| Lubeck Public Service District · Washington · PFOA | 89.8 |
| Parkersburg Utility Board · Parkersburg · PFOA | 29.1 |
| Williamstown Water Dept · Williamstown · PFOA | 26.1 |
| Wvaw – Walnut Grove Utilities · Charles Town · PFOS | 14.9 |
| Pleasants County Public Service District · St. Marys · PFOA | 9.55 |
| New Martinsville Water System · New Martinsville · PFOA | 8 |
| Pennsboro Water System · Pennsboro · PFOA | 7.25 |
| Mineral Wells Public Service District · Mineralwells · PFOA | 6.75 |
| Weirton Area Water Board · Weirton · PFOS | 5.85 |
| Union Williams Public Service District · Waverly · PFOA | 5.65 |
| Claywood Park Public Service District · Parkersburg · PFOA | 3.98 |
| City of Ripley · Ripley · PFOA | 3.58 |
| Southern Jackson County Public Service District · Ripley · PFOA | 2.5 |
| Ravenswood Municipal Water Works · Ravenswood · PFOA | 2.4 |
| City of Wellsburg · Wellsburg · PFOA | 2.3 |
Largest systems above a limit
| # | System | People served |
|---|---|---|
| 1 | Parkersburg Utility Board Parkersburg Above: PFOA | 34,251 |
| 2 | Weirton Area Water Board Weirton Above: PFOS | 19,676 |
| 3 | Lubeck Public Service District Washington Above: PFOA | 11,724 |
| 4 | Union Williams Public Service District Waverly Above: PFOA | 7,883 |
| 5 | Wvaw – Walnut Grove Utilities Charles Town Above: PFOS | 7,250 |
| 6 | Mineral Wells Public Service District Mineralwells Above: PFOA | 5,674 |
| 7 | New Martinsville Water System New Martinsville Above: PFOA | 5,272 |
| 8 | Williamstown Water Dept Williamstown Above: PFOA, PFHxS, Hazard Index | 3,469 |
| 9 | Pleasants County Public Service District St. Marys Above: PFOA | 2,357 |
| 10 | Pennsboro Water System Pennsboro Above: PFOA | 1,532 |
Which limits were exceeded
| PFAS | Federal limit | Systems above it |
|---|---|---|
| PFOA 72,162 people | 4 ppt | 8 |
| PFOS 26,926 people | 4 ppt | 2 |
| PFHxS 3,469 people | 10 ppt | 1 |
| PFNA | 10 ppt | 0 |
| GenX (HFPO-DA) | 10 ppt | 0 |
| Hazard Index 3,469 people | 1 | 1 |
"–" in the table above means not detected. A system can be above more than one limit. EPA proposed in May 2026 to rescind the PFHxS, PFNA, GenX and Hazard Index limits. That proposal is not final.
Data and how to cite it
- Download every West Virginia water system as CSV (PFOA and PFOS averages, systems above a limit, lead, violations).
- EPA's source file: UCMR 5 occurrence data.
Suggested citation:
Tap Water Results, "West Virginia PFAS results from EPA's final UCMR 5 data" (published Nov 14, 2026, EPA data file of Oct 15, 2026). https://tapwaterresults.com/pfas/west-virginia/
You're welcome to quote and republish these figures with a link back. Questions from reporters: see contact.
Method
For each system we average each entry point's UCMR 5 results (non-detects count as zero, complete sets of samples only) and compare the highest entry-point average with the 2024 federal limit, using EPA's rounding. This is how EPA compares UCMR 5 results to the limits in its own data summary, and our national counts match EPA's published table within 2% (how we check). Results are monitoring data from 2023–2025, not compliance determinations, and treatment installed since then is not reflected. Full method.
Questions
How many West Virginia water systems have PFAS above the limit?
10 of the 99 West Virginia community water systems EPA tested in 2023–2025 (10%) had at least one entry-point average above a 2024 federal PFAS limit. They serve 99,088 people. Nationally the share is 11%.
Are these systems violating the law?
Not yet. Systems have until 2029 to meet the 2024 limits, and EPA has proposed moving the PFOA and PFOS deadline to 2031 and rescinding the other limits. EPA's UCMR 5 results are monitoring data and do not determine compliance.
Which systems were tested?
EPA's UCMR 5 tested every community water system serving more than 3,300 people and a representative sample of smaller ones. Systems that were not tested have no federal result, which is not the same as having no PFAS.
All West Virginia water systems → · National results → · PFAS results for every state →
Source: U.S. EPA drinking water records and PFAS testing (UCMR 5). How we read the data.