No open health-based violations on EPA record in the last 10 years.
Serves about 150 people (117 connections) with groundwater from its own wells.
From EPA's record for OK2002202. PurityMap is independent of Dewey Co RWD #2.
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1 health-based violation in the last 10 years, from EPA's SDWIS compliance database.
| Period | Contaminant | Measured | Legal limit | EPA status |
|---|---|---|---|---|
| From October 2024 | Lead and copper rule revisions | – | – | Resolved |
EPA required this system to test for 30 unregulated and emerging contaminants, from March 2023 to September 2023.
| 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 | 2023-03-21 to 2023-09-13 | UCMR5 Analytical Results: DEWEY CO RWD #2 (OK2002202) |
| 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 | 2023-03-21 to 2023-09-13 | UCMR5 Analytical Results: DEWEY CO RWD #2 (OK2002202) |
| 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 | 2023-03-21 to 2023-09-13 | UCMR5 Analytical Results: DEWEY CO RWD #2 (OK2002202) |
| 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 | 2023-03-21 to 2023-09-13 | UCMR5 Analytical Results: DEWEY CO RWD #2 (OK2002202) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-21 to 2023-09-13 | UCMR5 Analytical Results: DEWEY CO RWD #2 (OK2002202) |
| 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 | 2023-03-21 to 2023-09-13 | UCMR5 Analytical Results: DEWEY CO RWD #2 (OK2002202) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-03-21 to 2023-09-13 | UCMR5 Analytical Results: DEWEY CO RWD #2 (OK2002202) |
| 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 | 2023-03-21 to 2023-09-13 | UCMR5 Analytical Results: DEWEY CO RWD #2 (OK2002202) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-21 to 2023-09-13 | UCMR5 Analytical Results: DEWEY CO RWD #2 (OK2002202) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-21 to 2023-09-13 | UCMR5 Analytical Results: DEWEY CO RWD #2 (OK2002202) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-21 to 2023-09-13 | UCMR5 Analytical Results: DEWEY CO RWD #2 (OK2002202) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-21 to 2023-09-13 | UCMR5 Analytical Results: DEWEY CO RWD #2 (OK2002202) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-21 to 2023-09-13 | UCMR5 Analytical Results: DEWEY CO RWD #2 (OK2002202) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-21 to 2023-09-13 | UCMR5 Analytical Results: DEWEY CO RWD #2 (OK2002202) |
| 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 | 2023-03-21 to 2023-09-13 | UCMR5 Analytical Results: DEWEY CO RWD #2 (OK2002202) |
| Perfluorobutanoic acid (PFBA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-21 to 2023-09-13 | UCMR5 Analytical Results: DEWEY CO RWD #2 (OK2002202) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-21 to 2023-09-13 | UCMR5 Analytical Results: DEWEY CO RWD #2 (OK2002202) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-21 to 2023-09-13 | UCMR5 Analytical Results: DEWEY CO RWD #2 (OK2002202) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-21 to 2023-09-13 | UCMR5 Analytical Results: DEWEY CO RWD #2 (OK2002202) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-21 to 2023-09-13 | UCMR5 Analytical Results: DEWEY CO RWD #2 (OK2002202) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-03-21 to 2023-09-13 | UCMR5 Analytical Results: DEWEY CO RWD #2 (OK2002202) |
| Perfluorohexanoic acid (PFHxA) | < 3 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Not detected above the reporting limit | 2023-03-21 to 2023-09-13 | UCMR5 Analytical Results: DEWEY CO RWD #2 (OK2002202) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-03-21 to 2023-09-13 | UCMR5 Analytical Results: DEWEY CO RWD #2 (OK2002202) |
| Perfluorooctanesulfonic acid (PFOS) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-03-21 to 2023-09-13 | UCMR5 Analytical Results: DEWEY CO RWD #2 (OK2002202) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-03-21 to 2023-09-13 | UCMR5 Analytical Results: DEWEY CO RWD #2 (OK2002202) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-21 to 2023-09-13 | UCMR5 Analytical Results: DEWEY CO RWD #2 (OK2002202) |
| Perfluoropentanoic acid (PFPeA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-21 to 2023-09-13 | UCMR5 Analytical Results: DEWEY CO RWD #2 (OK2002202) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-21 to 2023-09-13 | UCMR5 Analytical Results: DEWEY CO RWD #2 (OK2002202) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-21 to 2023-09-13 | UCMR5 Analytical Results: DEWEY CO RWD #2 (OK2002202) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-21 to 2023-09-13 | UCMR5 Analytical Results: DEWEY CO RWD #2 (OK2002202) |
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 →Dewey Co RWD #2's phone number on EPA record is 580-571-7275. Its mailing address is Mark Ward, Chairman, P.O. BOX 86, CAMARGO, OK 73835.
According to EPA's record, Dewey Co RWD #2 uses groundwater from its own wells.
EPA's record shows 1 health-based violation for Dewey Co RWD #2 in the 10 years to July 9, 2026. No open health-based violations on EPA record in the last 10 years. EPA also lists 21 missed or late tests or reports in 10 years. The record comes from EPA's SDWIS compliance database.
The 90th-percentile lead result in Dewey Co RWD #2's latest lead and copper round, which ended in December 2025, was 1.5 µg/L, below the federal action level of 15 µg/L.
PurityMap has no verified website for Dewey Co RWD #2. Its phone number on EPA record is 580-571-7275. Its mailing address on EPA record is Mark Ward, Chairman, P.O. BOX 86, CAMARGO, OK 73835. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.