No open health-based violations on EPA record in the last 10 years; latest legal-limit breach in the period starting January 2025.
Serves about 1,050 people (568 connections) with surface water bought from City of Coffeyville.
From EPA's record for OK3005321. PurityMap is independent of Nowata Co RWD #7.
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17 health-based violations in the last 10 years, from EPA's SDWIS compliance database.
| Period | Contaminant | Measured | Legal limit | EPA status |
|---|---|---|---|---|
| Jan–Mar 2025 | Haloacetic acids (HAA5) | 0.061 mg/L | 0.060 mg/L | Resolved |
| From October 2024 | Lead and copper rule revisions | – | – | Resolved |
| Oct–Dec 2024 | Total trihalomethanes (TTHM) | 0.097 mg/L | 0.080 mg/L | Resolved |
| Oct–Dec 2024 | Total trihalomethanes (TTHM) | 0.095 mg/L | 0.080 mg/L | Resolved |
| Oct–Dec 2024 | Haloacetic acids (HAA5) | 0.078 mg/L | 0.060 mg/L | Resolved |
| Period | Contaminant | Measured | Legal limit | EPA status |
|---|---|---|---|---|
| Oct–Dec 2024 | Haloacetic acids (HAA5) | 0.075 mg/L | 0.060 mg/L | Resolved |
| Jul–Sep 2024 | Total trihalomethanes (TTHM) | 0.1 mg/L | 0.080 mg/L | Resolved |
| Jul–Sep 2024 | Total trihalomethanes (TTHM) | 0.098 mg/L | 0.080 mg/L | Resolved |
| Jul–Sep 2024 | Haloacetic acids (HAA5) | 0.073 mg/L | 0.060 mg/L | Resolved |
| Jul–Sep 2024 | Haloacetic acids (HAA5) | 0.07 mg/L | 0.060 mg/L | Resolved |
| Apr–Jun 2023 | Total trihalomethanes (TTHM) | 0.089 mg/L | 0.080 mg/L | Resolved |
| Apr–Jun 2023 | Total trihalomethanes (TTHM) | 0.089 mg/L | 0.080 mg/L | Resolved |
| Jan–Mar 2023 | Total trihalomethanes (TTHM) | 0.091 mg/L | 0.080 mg/L | Resolved |
| Jan–Mar 2023 | Total trihalomethanes (TTHM) | 0.092 mg/L | 0.080 mg/L | Resolved |
| Oct–Dec 2022 | Total trihalomethanes (TTHM) | 0.081 mg/L | 0.080 mg/L | Resolved |
| Oct–Dec 2022 | Total trihalomethanes (TTHM) | 0.082 mg/L | 0.080 mg/L | Resolved |
| Jul–Sep 2022 | Total trihalomethanes (TTHM) | 0.082 mg/L | 0.080 mg/L | Resolved |
No lab results for other contaminants (like PFAS) are on file for this system. EPA required that testing from systems serving more than 3,300 people, plus a sample of smaller ones.
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 →Nowata Co RWD #7's phone number on EPA record is 918-535-2302. Its mailing address is Brandon Keuhn, Chairman, 18661 EW 3 RD, COFFEYVILLE, OK 74072.
According to EPA's record, Nowata Co RWD #7 uses surface water bought from City of Coffeyville.
EPA's record shows 17 health-based violations for Nowata Co RWD #7 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 January 2025. EPA also lists 53 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 Co RWD #7's latest lead and copper round, which ended in December 2025, was 1.4 µg/L, below the federal action level of 15 µg/L.
PurityMap has no verified website for Nowata Co RWD #7. Its phone number on EPA record is 918-535-2302. Its mailing address on EPA record is Brandon Keuhn, Chairman, 18661 EW 3 RD, COFFEYVILLE, OK 74072. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.