No open health-based violations on EPA record in the last 10 years.
Serves about 4,600 people (2,549 connections) with groundwater from its own wells.
From EPA's record for OK2006907. PurityMap is independent of Marlow Municipal Authority.
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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 January 2023 to October 2023.
| Contaminant | Result | Limit | Status | Sampled | Source |
|---|---|---|---|---|---|
| Lithium | 50.1 µg/L | 10 µg/L EPA health reference level (screening, not a legal limit)Screening level, not a legal limit | Above the referenced health-based guidance value | 2023-01-11 to 2023-07-18 | UCMR5 Analytical Results: MARLOW MUNICIPAL AUTHORITY (OK2006907) |
| 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 | 2023-01-11 to 2023-10-17 | UCMR5 Analytical Results: MARLOW MUNICIPAL AUTHORITY (OK2006907) |
| 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 | 2023-01-11 to 2023-10-17 | UCMR5 Analytical Results: MARLOW MUNICIPAL AUTHORITY (OK2006907) |
| 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 | 2023-01-11 to 2023-10-17 | UCMR5 Analytical Results: MARLOW MUNICIPAL AUTHORITY (OK2006907) |
| 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 | 2023-01-11 to 2023-10-17 | UCMR5 Analytical Results: MARLOW MUNICIPAL AUTHORITY (OK2006907) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-11 to 2023-10-17 | UCMR5 Analytical Results: MARLOW MUNICIPAL AUTHORITY (OK2006907) |
| 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 | 2023-01-11 to 2023-10-17 | UCMR5 Analytical Results: MARLOW MUNICIPAL AUTHORITY (OK2006907) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-01-11 to 2023-10-17 | UCMR5 Analytical Results: MARLOW MUNICIPAL AUTHORITY (OK2006907) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-11 to 2023-07-18 | UCMR5 Analytical Results: MARLOW MUNICIPAL AUTHORITY (OK2006907) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-11 to 2023-07-18 | UCMR5 Analytical Results: MARLOW MUNICIPAL AUTHORITY (OK2006907) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-11 to 2023-10-17 | UCMR5 Analytical Results: MARLOW MUNICIPAL AUTHORITY (OK2006907) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-11 to 2023-10-17 | UCMR5 Analytical Results: MARLOW MUNICIPAL AUTHORITY (OK2006907) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-11 to 2023-10-17 | UCMR5 Analytical Results: MARLOW MUNICIPAL AUTHORITY (OK2006907) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-11 to 2023-10-17 | UCMR5 Analytical Results: MARLOW MUNICIPAL AUTHORITY (OK2006907) |
| 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 | 2023-01-11 to 2023-10-17 | UCMR5 Analytical Results: MARLOW MUNICIPAL AUTHORITY (OK2006907) |
| Perfluorobutanoic acid (PFBA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-11 to 2023-10-17 | UCMR5 Analytical Results: MARLOW MUNICIPAL AUTHORITY (OK2006907) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-11 to 2023-10-17 | UCMR5 Analytical Results: MARLOW MUNICIPAL AUTHORITY (OK2006907) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-11 to 2023-10-17 | UCMR5 Analytical Results: MARLOW MUNICIPAL AUTHORITY (OK2006907) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-11 to 2023-10-17 | UCMR5 Analytical Results: MARLOW MUNICIPAL AUTHORITY (OK2006907) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-11 to 2023-10-17 | UCMR5 Analytical Results: MARLOW MUNICIPAL AUTHORITY (OK2006907) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-01-11 to 2023-10-17 | UCMR5 Analytical Results: MARLOW MUNICIPAL AUTHORITY (OK2006907) |
| Perfluorohexanoic acid (PFHxA) | < 3 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Not detected above the reporting limit | 2023-01-11 to 2023-10-17 | UCMR5 Analytical Results: MARLOW MUNICIPAL AUTHORITY (OK2006907) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-01-11 to 2023-10-17 | UCMR5 Analytical Results: MARLOW MUNICIPAL AUTHORITY (OK2006907) |
| Perfluorooctanesulfonic acid (PFOS) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-01-11 to 2023-10-17 | UCMR5 Analytical Results: MARLOW MUNICIPAL AUTHORITY (OK2006907) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-01-11 to 2023-10-17 | UCMR5 Analytical Results: MARLOW MUNICIPAL AUTHORITY (OK2006907) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-11 to 2023-10-17 | UCMR5 Analytical Results: MARLOW MUNICIPAL AUTHORITY (OK2006907) |
| Perfluoropentanoic acid (PFPeA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-11 to 2023-10-17 | UCMR5 Analytical Results: MARLOW MUNICIPAL AUTHORITY (OK2006907) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-11 to 2023-07-18 | UCMR5 Analytical Results: MARLOW MUNICIPAL AUTHORITY (OK2006907) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-11 to 2023-07-18 | UCMR5 Analytical Results: MARLOW MUNICIPAL AUTHORITY (OK2006907) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-11 to 2023-10-17 | UCMR5 Analytical Results: MARLOW MUNICIPAL AUTHORITY (OK2006907) |
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 →Marlow Municipal Authority's phone number on EPA record is 580-658-5401. Its mailing address is The Honorable Jeff Prater, Mayor, P.O. BOX 113, MARLOW, OK 73055.
According to EPA's record, Marlow Municipal Authority uses groundwater from its own wells.
EPA's record shows 1 health-based violation for Marlow Municipal Authority in the 10 years to July 9, 2026. No open health-based violations on EPA record in the last 10 years. EPA also lists 1 missed or late test or report in 10 years. The record comes from EPA's SDWIS compliance database.
The 90th-percentile lead result in Marlow Municipal Authority's latest lead and copper round, which ended in December 2024, was 2.25 µg/L, below the federal action level of 15 µg/L.
PurityMap has no verified website for Marlow Municipal Authority. Its phone number on EPA record is 580-658-5401. Its mailing address on EPA record is The Honorable Jeff Prater, Mayor, P.O. BOX 113, MARLOW, OK 73055. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.