No open health-based violations on EPA record in the last 10 years.
Serves about 7,883 people (3,312 connections) with groundwater from its own wells.
From EPA's record for WV3305410. PurityMap is independent of Union Williams P S D.
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2 health-based violations in the last 10 years, from EPA's SDWIS compliance database.
| Period | Contaminant | Measured | Legal limit | EPA status |
|---|---|---|---|---|
| From August 2020 | E. coli | – | – | Resolved |
| From January 2020 | Groundwater Rule | – | – | Resolved |
EPA required this system to test for 30 unregulated and emerging contaminants, from March 2025 to September 2025.
| Contaminant | Result | Limit | Status | Sampled | Source |
|---|---|---|---|---|---|
| Perfluorooctanoic acid (PFOA) | 5.8 ng/L | 4.0 ng/L federal MCL (2024) | Above a historical reference; current applicability unverified | 2025-03-17 to 2025-09-23 | UCMR5 Analytical Results: UNION WILLIAMS P S D (WV3305410) |
| 11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-17 to 2025-09-23 | UCMR5 Analytical Results: UNION WILLIAMS P S D (WV3305410) |
| 1H, 1H, 2H, 2H-perfluorodecane sulfonic acid (8:2 FTS) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-17 to 2025-09-23 | UCMR5 Analytical Results: UNION WILLIAMS P S D (WV3305410) |
| 1H, 1H, 2H, 2H-perfluorohexane sulfonic acid (4:2 FTS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-17 to 2025-09-23 | UCMR5 Analytical Results: UNION WILLIAMS P S D (WV3305410) |
| 1H, 1H, 2H, 2H-perfluorooctane sulfonic acid (6:2 FTS) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-17 to 2025-09-23 | UCMR5 Analytical Results: UNION WILLIAMS P S D (WV3305410) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-17 to 2025-09-23 | UCMR5 Analytical Results: UNION WILLIAMS P S D (WV3305410) |
| 9-Chlorohexadecafluoro-3-oxanone-1-sulfonic acid (9Cl-PF3ONS) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-17 to 2025-09-23 | UCMR5 Analytical Results: UNION WILLIAMS P S D (WV3305410) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-03-17 to 2025-09-23 | UCMR5 Analytical Results: UNION WILLIAMS P S D (WV3305410) |
| Lithium | < 9 µg/L | 10 µg/L EPA health reference level (screening, not a legal limit)Screening level, not a legal limit | Not detected above the reporting limit | 2025-03-17 to 2025-09-23 | UCMR5 Analytical Results: UNION WILLIAMS P S D (WV3305410) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-17 to 2025-09-23 | UCMR5 Analytical Results: UNION WILLIAMS P S D (WV3305410) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-17 to 2025-09-23 | UCMR5 Analytical Results: UNION WILLIAMS P S D (WV3305410) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-17 to 2025-09-23 | UCMR5 Analytical Results: UNION WILLIAMS P S D (WV3305410) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-17 to 2025-09-23 | UCMR5 Analytical Results: UNION WILLIAMS P S D (WV3305410) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-17 to 2025-09-23 | UCMR5 Analytical Results: UNION WILLIAMS P S D (WV3305410) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-17 to 2025-09-23 | UCMR5 Analytical Results: UNION WILLIAMS P S D (WV3305410) |
| Perfluorobutanesulfonic acid (PFBS) | < 3 ng/L | 2,000 ng/L EPA health advisory (screening, not a legal limit)Screening level, not a legal limit | Not detected above the reporting limit | 2025-03-17 to 2025-09-23 | UCMR5 Analytical Results: UNION WILLIAMS P S D (WV3305410) |
| Perfluorobutanoic acid (PFBA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-17 to 2025-09-23 | UCMR5 Analytical Results: UNION WILLIAMS P S D (WV3305410) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-17 to 2025-09-23 | UCMR5 Analytical Results: UNION WILLIAMS P S D (WV3305410) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-17 to 2025-09-23 | UCMR5 Analytical Results: UNION WILLIAMS P S D (WV3305410) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-17 to 2025-09-23 | UCMR5 Analytical Results: UNION WILLIAMS P S D (WV3305410) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-17 to 2025-09-23 | UCMR5 Analytical Results: UNION WILLIAMS P S D (WV3305410) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-03-17 to 2025-09-23 | UCMR5 Analytical Results: UNION WILLIAMS P S D (WV3305410) |
| Perfluorohexanoic acid (PFHxA) | < 3 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Not detected above the reporting limit | 2025-03-17 to 2025-09-23 | UCMR5 Analytical Results: UNION WILLIAMS P S D (WV3305410) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-03-17 to 2025-09-23 | UCMR5 Analytical Results: UNION WILLIAMS P S D (WV3305410) |
| Perfluorooctanesulfonic acid (PFOS) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-03-17 to 2025-09-23 | UCMR5 Analytical Results: UNION WILLIAMS P S D (WV3305410) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-17 to 2025-09-23 | UCMR5 Analytical Results: UNION WILLIAMS P S D (WV3305410) |
| Perfluoropentanoic acid (PFPeA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-17 to 2025-09-23 | UCMR5 Analytical Results: UNION WILLIAMS P S D (WV3305410) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-17 to 2025-09-23 | UCMR5 Analytical Results: UNION WILLIAMS P S D (WV3305410) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-17 to 2025-09-23 | UCMR5 Analytical Results: UNION WILLIAMS P S D (WV3305410) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-17 to 2025-09-23 | UCMR5 Analytical Results: UNION WILLIAMS P S D (WV3305410) |
Screening tells you if something is worth a closer look; a lab result is the number you can act on.
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Screening: quick check, not lab-grade
Safe Home (EnviroTestKits)
Lead, read as one of three ranges: 0–4, 5–15 or 15+ ppb
Turnaround: 5 minutes
What it can't tell you: It shows a lead range, not an exact level, and tests nothing else unless you pay extra for the optional lab test.
Lab-certified results
ETR Laboratories
50+ substances, including lead, copper, arsenic, nitrate, hardness and coliform bacteria
Environmental Testing and Research Laboratories (ETR Labs), Leominster, MA · ISO/IEC 17025:2017, ANAB certificate AT-2638 · 2–4 business days after the lab receives it
What it can't tell you: It does not test PFAS, and not every result on the panel falls under the lab's accredited scope.
Get PurityMap updates about this water system.
Follow this water →Union Williams P S D's phone number on EPA record is 304-464-5121. Its mailing address is P O BOX 243, WAVERLY, WV 26184.
According to EPA's record, Union Williams P S D uses groundwater from its own wells.
EPA's record shows 2 health-based violations for Union Williams P S D in the 10 years to July 9, 2026. No open health-based violations on EPA record in the last 10 years. EPA also lists 14 missed or late tests or reports in 10 years. The record comes from EPA's SDWIS compliance database.
The 90th-percentile lead result in Union Williams P S D's latest lead and copper round, which ended in December 2026, was 0.65 µg/L, below the federal action level of 15 µg/L.
PurityMap has no verified website for Union Williams P S D. Its phone number on EPA record is 304-464-5121. Its mailing address on EPA record is P O BOX 243, WAVERLY, WV 26184. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.