No open health-based violations on EPA record in the last 10 years; latest legal-limit breach in the period starting July 2024.
Serves about 800 people (406 connections) with groundwater from its own wells.
From EPA's record for OK2001801. PurityMap is independent of Welch PWA.
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29 health-based violations in the last 10 years, from EPA's SDWIS compliance database.
| Period | Contaminant | Measured | Legal limit | EPA status |
|---|---|---|---|---|
| From July 2024 | Combined radium-226/228 | 6 pCi/L | 5 pCi/L | Resolved |
| From April 2024 | Combined radium-226/228 | 7 pCi/L | 5 pCi/L | Resolved |
| From January 2024 | Combined radium-226/228 | 7 pCi/L | 5 pCi/L | Resolved |
| From October 2023 | Combined radium-226/228 | 7 pCi/L | 5 pCi/L | Archived |
| From July 2023 | Combined radium-226/228 | 6 pCi/L | 5 pCi/L | Archived |
| Period | Contaminant | Measured | Legal limit | EPA status |
|---|---|---|---|---|
| From April 2023 | Combined radium-226/228 | 6 pCi/L | 5 pCi/L | Archived |
| From January 2023 | Combined radium-226/228 | 6 pCi/L | 5 pCi/L | Archived |
| From October 2022 | Combined radium-226/228 | 6 pCi/L | 5 pCi/L | Archived |
| From July 2022 | Combined radium-226/228 | 6 pCi/L | 5 pCi/L | Archived |
| From April 2022 | Combined radium-226/228 | 7 pCi/L | 5 pCi/L | Archived |
| From January 2022 | Combined radium-226/228 | 6 pCi/L | 5 pCi/L | Archived |
| From April 2021 | Combined radium-226/228 | 6 pCi/L | 5 pCi/L | Archived |
| From January 2021 | Combined radium-226/228 | 6 pCi/L | 5 pCi/L | Archived |
| From October 2020 | Combined radium-226/228 | 8 pCi/L | 5 pCi/L | Archived |
| From July 2020 | Combined radium-226/228 | 8 pCi/L | 5 pCi/L | Archived |
| From April 2020 | Combined radium-226/228 | 9 pCi/L | 5 pCi/L | Archived |
| From January 2020 | Combined radium-226/228 | 11 pCi/L | 5 pCi/L | Archived |
| From October 2019 | Combined radium-226/228 | 11 pCi/L | 5 pCi/L | Archived |
| From July 2019 | Combined radium-226/228 | 10 pCi/L | 5 pCi/L | Archived |
| From July 2019 | Gross alpha particles | 17 pCi/L | 15 pCi/L | Archived |
| From April 2019 | Gross alpha particles | 18 pCi/L | 15 pCi/L | Archived |
| From April 2019 | Combined radium-226/228 | 9 pCi/L | 5 pCi/L | Archived |
| From January 2019 | Combined radium-226/228 | 6 pCi/L | 5 pCi/L | Archived |
| From October 2018 | Combined radium-226/228 | 6 pCi/L | 5 pCi/L | Archived |
| From July 2018 | Combined radium-226/228 | 6 pCi/L | 5 pCi/L | Archived |
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 →Welch PWA's phone number on EPA record is 918-788-3616. Its mailing address is Glen Walker, Mayor, P.O. BOX 277, WELCH, OK 74369.
According to EPA's record, Welch PWA uses groundwater from its own wells.
EPA's record shows 29 health-based violations for Welch PWA 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 July 2024. EPA also lists 49 missed or late tests or reports in 10 years. The record comes from EPA's SDWIS compliance database.
Lead was not detected at the 90th percentile of tap samples in Welch PWA's latest lead and copper round, which ended in June 2026. The federal action level is 15 µg/L.
PurityMap has no verified website for Welch PWA. Its phone number on EPA record is 918-788-3616. Its mailing address on EPA record is Glen Walker, Mayor, P.O. BOX 277, WELCH, OK 74369. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.