ATOKA
PWSID: OK1010401 · Atoka, OK · Serves 2,988 people
ATOKA has 71 health-based violations out of 71 total. Health violations indicate contaminant levels exceeded EPA limits or required treatment was not followed.
ATOKA (PWSID OK1010401) is a cws water system drawing from a surface water source, regulated by the EPA Safe Drinking Water Information System (SDWIS) under the Safe Drinking Water Act. It serves approximately 2,988 people in Atoka, OK, and is subject to primacy enforcement by the Oklahoma drinking-water program.
The system's federal compliance record contains 71 total violations, with 71 classified as health-based (MCL exceedances or treatment-technique failures). 6 distinct contaminants have been cited, including Turbidity, Chloroform, Arsenic. Recorded violations span 1987–2025.
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)
- OK1010401
- System Type
- CWS
- Water Source
- Surface Water
- Location
- Atoka, OK
- Population Served
- 2,988
- Health Violations
- Yes (71)
What contaminants are in this water system?
| Contaminant | Violations | Health-Based |
|---|---|---|
| Turbidity | 26 | 26 |
| Chloroform | 23 | 23 |
| Arsenic | 12 | 12 |
| Haloacetic Acids (HAA5) | 8 | 8 |
| Total Trihalomethanes (TTHM) | 1 | 1 |
| Total Coliform | 1 | 1 |
Violation History (71)
| Contaminant | Health | Date |
|---|---|---|
| Haloacetic Acids (HAA5) | Yes | Apr 1, 2025 |
| Haloacetic Acids (HAA5) | Yes | Apr 1, 2025 |
| Chloroform | Yes | Apr 1, 2025 |
| Haloacetic Acids (HAA5) | Yes | Jan 1, 2025 |
| Arsenic | Yes | Oct 1, 2024 |
| Arsenic | Yes | Oct 1, 2024 |
| Arsenic | Yes | Oct 1, 2024 |
| Haloacetic Acids (HAA5) | Yes | Oct 1, 2023 |
| Haloacetic Acids (HAA5) | Yes | Oct 1, 2023 |
| Haloacetic Acids (HAA5) | Yes | Oct 1, 2023 |
| Haloacetic Acids (HAA5) | Yes | Oct 1, 2023 |
| Haloacetic Acids (HAA5) | Yes | Oct 1, 2023 |
| Chloroform | Yes | Oct 1, 2023 |
| Chloroform | Yes | Oct 1, 2023 |
| Chloroform | Yes | Oct 1, 2023 |
| Chloroform | Yes | Oct 1, 2023 |
| Chloroform | Yes | Jul 1, 2023 |
| Chloroform | Yes | Jul 1, 2023 |
| Chloroform | Yes | Jul 1, 2023 |
| Chloroform | Yes | Jul 1, 2023 |
| Chloroform | Yes | Apr 1, 2023 |
| Chloroform | Yes | Apr 1, 2023 |
| Chloroform | Yes | Apr 1, 2023 |
| Turbidity | Yes | Mar 1, 2023 |
| Turbidity | Yes | Mar 1, 2023 |
| Turbidity | Yes | Mar 1, 2023 |
| Turbidity | Yes | Mar 1, 2023 |
| Turbidity | Yes | Feb 1, 2023 |
| Turbidity | Yes | Feb 1, 2023 |
| Turbidity | Yes | Feb 1, 2023 |
| Turbidity | Yes | Feb 1, 2023 |
| Turbidity | Yes | Jan 1, 2023 |
| Turbidity | Yes | Jan 1, 2023 |
| Turbidity | Yes | Jan 1, 2023 |
| Turbidity | Yes | Jan 1, 2023 |
| Turbidity | Yes | Jan 1, 2023 |
| Chloroform | Yes | Jan 1, 2023 |
| Chloroform | Yes | Jan 1, 2023 |
| Chloroform | Yes | Jan 1, 2023 |
| Chloroform | Yes | Jan 1, 2023 |
| Turbidity | Yes | Dec 1, 2022 |
| Turbidity | Yes | Dec 1, 2022 |
| Turbidity | Yes | Dec 1, 2022 |
| Turbidity | Yes | Dec 1, 2022 |
| Turbidity | Yes | Dec 1, 2022 |
| Arsenic | Yes | Dec 1, 2022 |
| Arsenic | Yes | Dec 1, 2022 |
| Arsenic | Yes | Dec 1, 2022 |
| Arsenic | Yes | Dec 1, 2022 |
| Arsenic | Yes | Dec 1, 2022 |
| Chloroform | Yes | Oct 1, 2022 |
| Chloroform | Yes | Oct 1, 2022 |
| Chloroform | Yes | Oct 1, 2022 |
| Chloroform | Yes | Oct 1, 2022 |
| Turbidity | Yes | Sep 1, 2022 |
| Turbidity | Yes | Sep 1, 2022 |
| Turbidity | Yes | Sep 1, 2022 |
| Chloroform | Yes | Jul 1, 2021 |
| Chloroform | Yes | Jul 1, 2021 |
| Chloroform | Yes | Jul 1, 2021 |
| Arsenic | Yes | Sep 1, 2020 |
| Arsenic | Yes | Aug 1, 2020 |
| Arsenic | Yes | Jul 1, 2020 |
| Turbidity | Yes | Apr 1, 2020 |
| Arsenic | Yes | Apr 1, 2020 |
| Turbidity | Yes | Mar 1, 2020 |
| Turbidity | Yes | Feb 1, 2020 |
| Turbidity | Yes | Apr 1, 2016 |
| Turbidity | Yes | Mar 1, 2016 |
| Total Trihalomethanes (TTHM) | Yes | Jul 1, 2013 |
| Total Coliform | Yes | Apr 1, 1987 |
Frequently Asked Questions
Is ATOKA water safe to drink?
How many people does ATOKA serve?
What violations does ATOKA have?
What contaminants have been found in ATOKA water?
Nearby Water Systems
Explore More
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.