Atoka Co. Rws & Swmd #4
PWSID: OK1010412
This system has no unresolved violations. The most recent violation on record was 2025-07-01.
This system has more violations on record than 87% of water systems in Oklahoma.
Violation trend: 24.4 per year over the last 5 years, up from 5.8 per year in the previous 5.
System Details
| Population Served | 3,000 |
| Service Connections | 3,197 |
| Water Source | Surface Water |
| System Type | Community Water System |
| Owner | Local Government |
| Status | Active |
| City | Atoka |
| EPA ZIP on File | 74525 |
Lead & Copper Testing
| Contaminant | Level | EPA Action Level | Status |
|---|---|---|---|
| Lead (90th percentile) | 0.0011 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0000 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0000 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0000 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0000 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0000 mg/L | 0.015 mg/L | Below Action Level |
Violation History (186 total)
| Contaminant | Violation | Date | Health-Based | Status |
|---|---|---|---|---|
| 7000 | Other | 2025-07-01 | Returned to Compliance | |
| 0300 | MR | 2025-07-01 | Major | Acknowledged |
| 1008 | MR | 2025-07-01 | Major | Acknowledged |
| 2456 | MCL Measured: 0.0690 MG/L (limit: 0.0600 MG/L) | 2025-04-01 | Yes | Acknowledged |
| 2456 | MCL Measured: 0.0830 MG/L (limit: 0.0600 MG/L) | 2025-04-01 | Yes | Acknowledged |
| 2950 | MCL Measured: 0.0930 MG/L (limit: 0.0800 MG/L) | 2025-04-01 | Yes | Acknowledged |
| 2950 | MCL Measured: 0.0950 MG/L (limit: 0.0800 MG/L) | 2025-04-01 | Yes | Acknowledged |
| 2920 | TT Measured: 0.6700 RATIO | 2025-04-01 | Yes | Acknowledged |
| 0300 | MR | 2025-01-01 | Major | Acknowledged |
| 0300 | MR | 2025-01-01 | Major | Acknowledged |
| 1008 | MR | 2025-01-01 | Major | Acknowledged |
| 1008 | MR | 2025-01-01 | Major | Acknowledged |
| 2920 | TT Measured: 0.6700 RATIO | 2025-01-01 | Yes | Acknowledged |
| 2920 | TT Measured: 0.6700 RATIO | 2025-01-01 | Yes | Acknowledged |
| 2456 | MCL Measured: 0.0790 MG/L (limit: 0.0600 MG/L) | 2025-01-01 | Yes | Acknowledged |
| 2456 | MCL Measured: 0.0790 MG/L (limit: 0.0600 MG/L) | 2025-01-01 | Yes | Acknowledged |
| 2456 | MCL Measured: 0.0790 MG/L (limit: 0.0600 MG/L) | 2025-01-01 | Yes | Acknowledged |
| 2456 | MCL Measured: 0.0790 MG/L (limit: 0.0600 MG/L) | 2025-01-01 | Yes | Acknowledged |
| 2950 | MCL Measured: 0.1090 MG/L (limit: 0.0800 MG/L) | 2025-01-01 | Yes | Acknowledged |
| 2950 | MCL Measured: 0.1090 MG/L (limit: 0.0800 MG/L) | 2025-01-01 | Yes | Acknowledged |
| 2950 | MCL Measured: 0.1190 MG/L (limit: 0.0800 MG/L) | 2025-01-01 | Yes | Acknowledged |
| 2950 | MCL Measured: 0.1190 MG/L (limit: 0.0800 MG/L) | 2025-01-01 | Yes | Acknowledged |
| 5200 | TT | 2024-10-17 | Yes | Returned to Compliance |
| 5200 | RPT | 2024-10-17 | Returned to Compliance | |
| 2456 | MCL Measured: 0.0930 MG/L (limit: 0.0600 MG/L) | 2024-10-01 | Yes | Acknowledged |
| 2456 | MCL Measured: 0.0750 MG/L (limit: 0.0600 MG/L) | 2024-10-01 | Yes | Acknowledged |
| 2950 | MCL Measured: 0.1190 MG/L (limit: 0.0800 MG/L) | 2024-10-01 | Yes | Acknowledged |
| 2950 | MCL Measured: 0.1260 MG/L (limit: 0.0800 MG/L) | 2024-10-01 | Yes | Acknowledged |
| 2920 | TT Measured: 0.8800 RATIO | 2024-10-01 | Yes | Acknowledged |
| 2456 | MCL Measured: 0.0730 MG/L (limit: 0.0600 MG/L) | 2024-07-01 | Yes | Acknowledged |
| 2456 | MCL Measured: 0.0730 MG/L (limit: 0.0600 MG/L) | 2024-07-01 | Yes | Acknowledged |
| 2456 | MCL Measured: 0.0730 MG/L (limit: 0.0600 MG/L) | 2024-07-01 | Yes | Acknowledged |
| 2456 | MCL Measured: 0.0850 MG/L (limit: 0.0600 MG/L) | 2024-07-01 | Yes | Acknowledged |
| 2456 | MCL Measured: 0.0850 MG/L (limit: 0.0600 MG/L) | 2024-07-01 | Yes | Acknowledged |
| 2456 | MCL Measured: 0.0850 MG/L (limit: 0.0600 MG/L) | 2024-07-01 | Yes | Acknowledged |
| 2950 | MCL Measured: 0.1160 MG/L (limit: 0.0800 MG/L) | 2024-07-01 | Yes | Acknowledged |
| 2950 | MCL Measured: 0.1160 MG/L (limit: 0.0800 MG/L) | 2024-07-01 | Yes | Acknowledged |
| 2950 | MCL Measured: 0.1160 MG/L (limit: 0.0800 MG/L) | 2024-07-01 | Yes | Acknowledged |
| 2950 | MCL Measured: 0.1210 MG/L (limit: 0.0800 MG/L) | 2024-07-01 | Yes | Acknowledged |
| 2950 | MCL Measured: 0.1210 MG/L (limit: 0.0800 MG/L) | 2024-07-01 | Yes | Acknowledged |
| 2950 | MCL Measured: 0.1210 MG/L (limit: 0.0800 MG/L) | 2024-07-01 | Yes | Acknowledged |
| 2920 | TT Measured: 0.9400 RATIO (limit: 1.00 RATIO) | 2024-07-01 | Yes | Acknowledged |
| 2920 | TT Measured: 0.9400 RATIO (limit: 1.00 RATIO) | 2024-07-01 | Yes | Acknowledged |
| 2920 | TT Measured: 0.9400 RATIO (limit: 1.00 RATIO) | 2024-07-01 | Yes | Acknowledged |
| 2456 | MCL Measured: 0.0620 MG/L (limit: 0.0600 MG/L) | 2024-04-01 | Yes | Acknowledged |
| 2456 | MCL Measured: 0.0620 MG/L (limit: 0.0600 MG/L) | 2024-04-01 | Yes | Acknowledged |
| 2456 | MCL Measured: 0.0620 MG/L (limit: 0.0600 MG/L) | 2024-04-01 | Yes | Acknowledged |
| 2456 | MCL Measured: 0.0620 MG/L (limit: 0.0600 MG/L) | 2024-04-01 | Yes | Acknowledged |
| 2950 | MCL Measured: 0.1060 MG/L (limit: 0.0800 MG/L) | 2024-04-01 | Yes | Acknowledged |
| 2950 | MCL Measured: 0.1060 MG/L (limit: 0.0800 MG/L) | 2024-04-01 | Yes | Acknowledged |
Showing 50 of 186 historical violations.
Understanding This Water System's Record
Atoka Co. Rws & Swmd #4 is a community water system water system that draws from surface water sources and serves a population of 3,000 in Atoka, Oklahoma. This page shows its complete compliance history as reported to the EPA's Safe Drinking Water Information System (SDWIS), the federal database that tracks every public water system in the United States.
What Do These Violations Mean?
Health-based violations mean the system exceeded an EPA maximum contaminant level (MCL) or failed to provide required treatment. These indicate potential health risks from contaminants like lead, arsenic, bacteria, nitrates, or disinfection byproducts. Non-health-based violations involve monitoring, reporting, or procedural requirements — the system missed a testing deadline or failed to notify customers, but contaminant levels were not necessarily unsafe.
What Should You Do?
Your water utility is required to publish an annual Consumer Confidence Report (CCR) that details test results and any violations. If your system has active health-based violations, consider a certified water filter rated for the specific contaminants involved. The contaminant guides on this site explain health risks and filter options for common pollutants. For the most current results, contact your water utility directly — EPA data can lag weeks or months behind real-time testing.