WELCH PWA
PWSID: OK2001801 · Welch, OK · Serves 800 people
WELCH PWA has 66 health-based violations out of 66 total. Health violations indicate contaminant levels exceeded EPA limits or required treatment was not followed.
WELCH PWA (PWSID OK2001801) is a cws water system drawing from a groundwater source, regulated by the EPA Safe Drinking Water Information System (SDWIS) under the Safe Drinking Water Act. It serves approximately 800 people in Welch, OK, and is subject to primacy enforcement by the Oklahoma drinking-water program.
The system's federal compliance record contains 66 total violations, with 66 classified as health-based (MCL exceedances or treatment-technique failures). 5 distinct contaminants have been cited, including Lead & Copper Rule, Copper, Total Coliform (RTCR). Recorded violations span 1981–2024.
A historical violation does not necessarily describe current water quality, systems must notify customers and remediate, and monitoring-type violations often reflect reporting lapses rather than contamination. The most authoritative real-time source is the utility's annual Consumer Confidence Report. For enforcement history and corrective-action orders, consult EPA ECHO and the Oklahoma state drinking-water program's public portal.
System Details
- EPA ID (PWSID)
- OK2001801
- System Type
- CWS
- Water Source
- Groundwater
- Location
- Welch, OK
- Population Served
- 800
- Health Violations
- Yes (66)
What contaminants are in this water system?
| Contaminant | Violations | Health-Based |
|---|---|---|
| Lead & Copper Rule | 51 | 51 |
| Copper | 7 | 7 |
| Total Coliform (RTCR) | 4 | 4 |
| Total Coliform | 3 | 3 |
| Manganese | 1 | 1 |
Violation History (66)
| Contaminant | Health | Date |
|---|---|---|
| Lead & Copper Rule | Yes | Jul 1, 2024 |
| Lead & Copper Rule | Yes | Jul 1, 2024 |
| Lead & Copper Rule | Yes | Apr 1, 2024 |
| Lead & Copper Rule | Yes | Apr 1, 2024 |
| Lead & Copper Rule | Yes | Apr 1, 2024 |
| Lead & Copper Rule | Yes | Jan 1, 2024 |
| Lead & Copper Rule | Yes | Jan 1, 2024 |
| Lead & Copper Rule | Yes | Jan 1, 2024 |
| Lead & Copper Rule | Yes | Jan 1, 2024 |
| Lead & Copper Rule | Yes | Oct 1, 2023 |
| Lead & Copper Rule | Yes | Oct 1, 2023 |
| Lead & Copper Rule | Yes | Oct 1, 2023 |
| Lead & Copper Rule | Yes | Jul 1, 2023 |
| Lead & Copper Rule | Yes | Jul 1, 2023 |
| Lead & Copper Rule | Yes | Jul 1, 2023 |
| Lead & Copper Rule | Yes | Apr 1, 2023 |
| Lead & Copper Rule | Yes | Apr 1, 2023 |
| Lead & Copper Rule | Yes | Apr 1, 2023 |
| Lead & Copper Rule | Yes | Apr 1, 2023 |
| Lead & Copper Rule | Yes | Jan 1, 2023 |
| Lead & Copper Rule | Yes | Jan 1, 2023 |
| Lead & Copper Rule | Yes | Jan 1, 2023 |
| Lead & Copper Rule | Yes | Jan 1, 2023 |
| Lead & Copper Rule | Yes | Oct 1, 2022 |
| Lead & Copper Rule | Yes | Oct 1, 2022 |
| Lead & Copper Rule | Yes | Jul 1, 2022 |
| Lead & Copper Rule | Yes | Jul 1, 2022 |
| Lead & Copper Rule | Yes | Jul 1, 2022 |
| Lead & Copper Rule | Yes | Apr 1, 2022 |
| Lead & Copper Rule | Yes | Apr 1, 2022 |
| Lead & Copper Rule | Yes | Apr 1, 2022 |
| Lead & Copper Rule | Yes | Jan 1, 2022 |
| Lead & Copper Rule | Yes | Apr 1, 2021 |
| Lead & Copper Rule | Yes | Jan 1, 2021 |
| Lead & Copper Rule | Yes | Oct 1, 2020 |
| Lead & Copper Rule | Yes | Jul 1, 2020 |
| Lead & Copper Rule | Yes | Apr 1, 2020 |
| Lead & Copper Rule | Yes | Jan 1, 2020 |
| Lead & Copper Rule | Yes | Oct 1, 2019 |
| Copper | Yes | Jul 1, 2019 |
| Lead & Copper Rule | Yes | Jul 1, 2019 |
| Lead & Copper Rule | Yes | Apr 1, 2019 |
| Copper | Yes | Apr 1, 2019 |
| Lead & Copper Rule | Yes | Jan 1, 2019 |
| Lead & Copper Rule | Yes | Oct 1, 2018 |
| Lead & Copper Rule | Yes | Jul 1, 2018 |
| Lead & Copper Rule | Yes | Apr 1, 2018 |
| Lead & Copper Rule | Yes | Jul 1, 2017 |
| Lead & Copper Rule | Yes | Jan 1, 2017 |
| Lead & Copper Rule | Yes | Oct 1, 2016 |
| Lead & Copper Rule | Yes | Jul 1, 2016 |
| Lead & Copper Rule | Yes | Apr 1, 2016 |
| Lead & Copper Rule | Yes | Jan 1, 2016 |
| Copper | Yes | Oct 1, 2011 |
| Copper | Yes | Jul 1, 2011 |
| Copper | Yes | Apr 1, 2011 |
| Copper | Yes | Jan 1, 2011 |
| Copper | Yes | Oct 1, 2010 |
| Total Coliform (RTCR) | Yes | Oct 1, 1993 |
| Total Coliform (RTCR) | Yes | Jun 1, 1993 |
| Total Coliform (RTCR) | Yes | May 1, 1993 |
| Total Coliform (RTCR) | Yes | Aug 1, 1991 |
| Total Coliform | Yes | Oct 1, 1985 |
| Total Coliform | Yes | Aug 1, 1985 |
| Manganese | Yes | Feb 23, 1983 |
| Total Coliform | Yes | Dec 31, 1981 |
Frequently Asked Questions
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About This Data
Water system data is from the EPA Safe Drinking Water Information System (SDWIS). Health-based violations include Maximum Contaminant Level (MCL) and Treatment Technique (TT) violations that may pose a direct risk to public health. Violation records may span multiple years.
Source: U.S. Environmental Protection Agency, SDWIS Federal Reporting Services U.S. Environmental Protection Agency, SDWIS Federal Reporting Services
Read our methodology - how this data is sourced, computed, and verified.