No health-based violations on EPA record since 2016.
Serves about 23,000 people (2,456 connections) with surface water bought from City of Lawton.
From EPA's record for OK3001601. PurityMap is independent of Fort Sill Hqusafacfs.
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No health-based violations in the last 10 years, from EPA's SDWIS compliance database.
EPA required this system to test for 30 unregulated and emerging contaminants, from June 2024 to March 2025.
| Contaminant | Result | Limit | Status | Sampled | Source |
|---|---|---|---|---|---|
| 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 | 2024-06-04 to 2025-03-05 | UCMR5 Analytical Results: FORT SILL HQUSAFACFS (OK3001601) |
| 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 | 2024-06-04 to 2025-03-05 | UCMR5 Analytical Results: FORT SILL HQUSAFACFS (OK3001601) |
| 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 | 2024-06-04 to 2025-03-05 | UCMR5 Analytical Results: FORT SILL HQUSAFACFS (OK3001601) |
| 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 | 2024-06-04 to 2025-03-05 | UCMR5 Analytical Results: FORT SILL HQUSAFACFS (OK3001601) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-06-04 to 2025-03-05 | UCMR5 Analytical Results: FORT SILL HQUSAFACFS (OK3001601) |
| 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 | 2024-06-04 to 2025-03-05 | UCMR5 Analytical Results: FORT SILL HQUSAFACFS (OK3001601) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-06-04 to 2025-03-05 | UCMR5 Analytical Results: FORT SILL HQUSAFACFS (OK3001601) |
| 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 | 2024-06-04 to 2025-03-05 | UCMR5 Analytical Results: FORT SILL HQUSAFACFS (OK3001601) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-06-04 to 2025-03-05 | UCMR5 Analytical Results: FORT SILL HQUSAFACFS (OK3001601) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-06-04 to 2025-03-05 | UCMR5 Analytical Results: FORT SILL HQUSAFACFS (OK3001601) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-06-04 to 2025-03-05 | UCMR5 Analytical Results: FORT SILL HQUSAFACFS (OK3001601) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-06-04 to 2025-03-05 | UCMR5 Analytical Results: FORT SILL HQUSAFACFS (OK3001601) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-06-04 to 2025-03-05 | UCMR5 Analytical Results: FORT SILL HQUSAFACFS (OK3001601) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-06-04 to 2025-03-05 | UCMR5 Analytical Results: FORT SILL HQUSAFACFS (OK3001601) |
| 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 | 2024-06-04 to 2025-03-05 | UCMR5 Analytical Results: FORT SILL HQUSAFACFS (OK3001601) |
| Perfluorobutanoic acid (PFBA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-06-04 to 2025-03-05 | UCMR5 Analytical Results: FORT SILL HQUSAFACFS (OK3001601) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-06-04 to 2025-03-05 | UCMR5 Analytical Results: FORT SILL HQUSAFACFS (OK3001601) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-06-04 to 2025-03-05 | UCMR5 Analytical Results: FORT SILL HQUSAFACFS (OK3001601) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-06-04 to 2025-03-05 | UCMR5 Analytical Results: FORT SILL HQUSAFACFS (OK3001601) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-06-04 to 2025-03-05 | UCMR5 Analytical Results: FORT SILL HQUSAFACFS (OK3001601) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-06-04 to 2025-03-05 | UCMR5 Analytical Results: FORT SILL HQUSAFACFS (OK3001601) |
| Perfluorohexanoic acid (PFHxA) | < 3 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Not detected above the reporting limit | 2024-06-04 to 2025-03-05 | UCMR5 Analytical Results: FORT SILL HQUSAFACFS (OK3001601) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-06-04 to 2025-03-05 | UCMR5 Analytical Results: FORT SILL HQUSAFACFS (OK3001601) |
| Perfluorooctanesulfonic acid (PFOS) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-06-04 to 2025-03-05 | UCMR5 Analytical Results: FORT SILL HQUSAFACFS (OK3001601) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-06-04 to 2025-03-05 | UCMR5 Analytical Results: FORT SILL HQUSAFACFS (OK3001601) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-06-04 to 2025-03-05 | UCMR5 Analytical Results: FORT SILL HQUSAFACFS (OK3001601) |
| Perfluoropentanoic acid (PFPeA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-06-04 to 2025-03-05 | UCMR5 Analytical Results: FORT SILL HQUSAFACFS (OK3001601) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-06-04 to 2025-03-05 | UCMR5 Analytical Results: FORT SILL HQUSAFACFS (OK3001601) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-06-04 to 2025-03-05 | UCMR5 Analytical Results: FORT SILL HQUSAFACFS (OK3001601) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-06-04 to 2025-03-05 | UCMR5 Analytical Results: FORT SILL HQUSAFACFS (OK3001601) |
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 →Fort Sill Hqusafacfs's phone number on EPA record is 580-248-3034. Its mailing address is Jimmy Asbury, P.O.Box 33178, FORT STILL, OK 73503.
According to EPA's record, Fort Sill Hqusafacfs uses surface water bought from City of Lawton.
No health-based violations on EPA record since 2016. The record comes from EPA's SDWIS compliance database.
The 90th-percentile lead result in Fort Sill Hqusafacfs's latest lead and copper round, which ended in December 2024, was 1.16 µg/L, below the federal action level of 15 µg/L.
PurityMap has no verified website for Fort Sill Hqusafacfs. Its phone number on EPA record is 580-248-3034. Its mailing address on EPA record is Jimmy Asbury, P.O.Box 33178, FORT STILL, OK 73503. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.