No open health-based violations on EPA record in the last 10 years; latest legal-limit breach in the period starting April 2024.
Serves about 3,971 people (2,072 connections) with surface water from its own intake.
From EPA's record for OK1021503. PurityMap is independent of Nowata Municipal Authority.
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33 health-based violations 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 |
| Apr–Jun 2024 | Total trihalomethanes (TTHM) | 0.085 mg/L | 0.080 mg/L | Archived |
| Apr–Jun 2024 | Total trihalomethanes (TTHM) | 0.087 mg/L | 0.080 mg/L | Archived |
| Jan–Mar 2024 | Total trihalomethanes (TTHM) | 0.098 mg/L | 0.080 mg/L | Archived |
| Jan–Mar 2024 | Total trihalomethanes (TTHM) | 0.098 mg/L | 0.080 mg/L | Archived |
| Period | Contaminant | Measured | Legal limit | EPA status |
|---|---|---|---|---|
| Oct–Dec 2023 | Total trihalomethanes (TTHM) | 0.103 mg/L | 0.080 mg/L | Archived |
| Oct–Dec 2023 | Total trihalomethanes (TTHM) | 0.103 mg/L | 0.080 mg/L | Archived |
| Jul–Sep 2023 | Total trihalomethanes (TTHM) | 0.106 mg/L | 0.080 mg/L | Archived |
| Jul–Sep 2023 | Total trihalomethanes (TTHM) | 0.109 mg/L | 0.080 mg/L | Archived |
| Oct–Dec 2022 | Total trihalomethanes (TTHM) | 0.082 mg/L | 0.080 mg/L | Archived |
| Oct–Dec 2022 | Total trihalomethanes (TTHM) | 0.085 mg/L | 0.080 mg/L | Archived |
| Apr–Jun 2022 | Total trihalomethanes (TTHM) | 0.088 mg/L | 0.080 mg/L | Archived |
| Jan–Mar 2021 | Total trihalomethanes (TTHM) | 0.086 mg/L | 0.080 mg/L | Archived |
| Oct–Dec 2020 | Total trihalomethanes (TTHM) | 0.085 mg/L | 0.080 mg/L | Archived |
| Apr–Jun 2019 | Total trihalomethanes (TTHM) | 0.084 mg/L | 0.080 mg/L | Resolved |
| Jan–Mar 2019 | Total trihalomethanes (TTHM) | 0.086 mg/L | 0.080 mg/L | Resolved |
| Jan–Mar 2019 | Total trihalomethanes (TTHM) | 0.091 mg/L | 0.080 mg/L | Resolved |
| Oct–Dec 2018 | Total trihalomethanes (TTHM) | 0.09 mg/L | 0.080 mg/L | Resolved |
| Jul–Sep 2018 | Total trihalomethanes (TTHM) | 0.093 mg/L | 0.080 mg/L | Resolved |
| From December 2017 | Long Term 2 Enhanced Surface Water Treatment Rule | – | – | Resolved |
| From November 2017 | Long Term 2 Enhanced Surface Water Treatment Rule | – | – | Resolved |
| From October 2017 | Long Term 2 Enhanced Surface Water Treatment Rule | – | – | Resolved |
| Oct–Dec 2017 | Total trihalomethanes (TTHM) | 0.081 mg/L | 0.080 mg/L | Resolved |
| From September 2017 | Long Term 2 Enhanced Surface Water Treatment Rule | – | – | Resolved |
| From August 2017 | Long Term 2 Enhanced Surface Water Treatment Rule | – | – | Resolved |
EPA required this system to test for 30 unregulated and emerging contaminants, from January 2023 to December 2024.
| Contaminant | Result | Limit | Status | Sampled | Source |
|---|---|---|---|---|---|
| Perfluorooctanesulfonic acid (PFOS) | 9.4 ng/L | 4.0 ng/L federal MCL (2024) | Above a historical reference; current applicability unverified | 2023-03-14 to 2024-12-17 | UCMR5 Analytical Results: NOWATA MUNICIPAL AUTHORITY (OK1021503) |
| Perfluorohexanesulfonic acid (PFHxS) | 4.8 ng/L | 10 ng/L federal MCL (2024) | Within a historical reference; current applicability unverified | 2023-03-14 to 2023-09-26 | UCMR5 Analytical Results: NOWATA MUNICIPAL AUTHORITY (OK1021503) |
| Perfluorohexanoic acid (PFHxA) | 4.4 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Within a historical reference; current applicability unverified | 2023-03-14 to 2023-09-26 | UCMR5 Analytical Results: NOWATA MUNICIPAL AUTHORITY (OK1021503) |
| Perfluoropentanoic acid (PFPeA) | 4.1 ng/L | No federal or state limit; shown for transparency | Detected, no limit | 2023-03-14 to 2023-09-26 | UCMR5 Analytical Results: NOWATA MUNICIPAL AUTHORITY (OK1021503) |
| 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 | 2023-03-14 to 2023-09-26 | UCMR5 Analytical Results: NOWATA MUNICIPAL AUTHORITY (OK1021503) |
| 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 | 2023-03-14 to 2023-09-26 | UCMR5 Analytical Results: NOWATA MUNICIPAL AUTHORITY (OK1021503) |
| 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 | 2023-03-14 to 2023-09-26 | UCMR5 Analytical Results: NOWATA MUNICIPAL AUTHORITY (OK1021503) |
| 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 | 2023-03-14 to 2023-09-26 | UCMR5 Analytical Results: NOWATA MUNICIPAL AUTHORITY (OK1021503) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-14 to 2023-09-26 | UCMR5 Analytical Results: NOWATA MUNICIPAL AUTHORITY (OK1021503) |
| 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 | 2023-03-14 to 2023-09-26 | UCMR5 Analytical Results: NOWATA MUNICIPAL AUTHORITY (OK1021503) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-03-14 to 2023-09-26 | UCMR5 Analytical Results: NOWATA MUNICIPAL AUTHORITY (OK1021503) |
| 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 | 2023-01-11 to 2023-09-26 | UCMR5 Analytical Results: NOWATA MUNICIPAL AUTHORITY (OK1021503) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-14 to 2023-09-26 | UCMR5 Analytical Results: NOWATA MUNICIPAL AUTHORITY (OK1021503) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-14 to 2023-09-26 | UCMR5 Analytical Results: NOWATA MUNICIPAL AUTHORITY (OK1021503) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-14 to 2023-09-26 | UCMR5 Analytical Results: NOWATA MUNICIPAL AUTHORITY (OK1021503) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-14 to 2023-09-26 | UCMR5 Analytical Results: NOWATA MUNICIPAL AUTHORITY (OK1021503) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-14 to 2023-09-26 | UCMR5 Analytical Results: NOWATA MUNICIPAL AUTHORITY (OK1021503) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-14 to 2023-09-26 | UCMR5 Analytical Results: NOWATA MUNICIPAL AUTHORITY (OK1021503) |
| 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 | 2023-03-14 to 2023-09-26 | UCMR5 Analytical Results: NOWATA MUNICIPAL AUTHORITY (OK1021503) |
| Perfluorobutanoic acid (PFBA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-14 to 2023-09-26 | UCMR5 Analytical Results: NOWATA MUNICIPAL AUTHORITY (OK1021503) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-14 to 2023-09-26 | UCMR5 Analytical Results: NOWATA MUNICIPAL AUTHORITY (OK1021503) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-14 to 2023-09-26 | UCMR5 Analytical Results: NOWATA MUNICIPAL AUTHORITY (OK1021503) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-14 to 2023-09-26 | UCMR5 Analytical Results: NOWATA MUNICIPAL AUTHORITY (OK1021503) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-14 to 2023-09-26 | UCMR5 Analytical Results: NOWATA MUNICIPAL AUTHORITY (OK1021503) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-03-14 to 2023-09-26 | UCMR5 Analytical Results: NOWATA MUNICIPAL AUTHORITY (OK1021503) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-03-14 to 2023-09-26 | UCMR5 Analytical Results: NOWATA MUNICIPAL AUTHORITY (OK1021503) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-14 to 2023-09-26 | UCMR5 Analytical Results: NOWATA MUNICIPAL AUTHORITY (OK1021503) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-14 to 2023-09-26 | UCMR5 Analytical Results: NOWATA MUNICIPAL AUTHORITY (OK1021503) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-14 to 2023-09-26 | UCMR5 Analytical Results: NOWATA MUNICIPAL AUTHORITY (OK1021503) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-14 to 2023-09-26 | UCMR5 Analytical Results: NOWATA MUNICIPAL AUTHORITY (OK1021503) |
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.
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Follow this water →Nowata Municipal Authority's phone number on EPA record is 918-273-3538. Its mailing address is Garry Gibson, Mayor, 114 S. Maple Street, NOWATA, OK 74048.
According to EPA's record, Nowata Municipal Authority uses surface water from its own intake.
EPA's record shows 33 health-based violations for Nowata Municipal Authority in the 10 years to July 9, 2026. No open health-based violations on EPA record in the last 10 years. The latest legal-limit breach on record was in the period starting April 2024. EPA also lists 17 missed or late tests or reports in 10 years. The record comes from EPA's SDWIS compliance database.
The 90th-percentile lead result in Nowata Municipal Authority's latest lead and copper round, which ended in December 2025, was 1.2 µg/L, below the federal action level of 15 µg/L.
PurityMap has no verified website for Nowata Municipal Authority. Its phone number on EPA record is 918-273-3538. Its mailing address on EPA record is Garry Gibson, Mayor, 114 S. Maple Street, NOWATA, OK 74048. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.