Pittsburg Co. Rwd #9 (Mcalester)
PWSID: OK3006107
This system currently has unresolved violations for: 5200. These violations mean contaminant levels exceeded EPA limits or required treatment was not performed.
Violation trend: 1.8 per year over the last 5 years, similar to 1.6 per year in the previous 5.
System Details
| Population Served | 872 |
| Service Connections | 349 |
| Water Source | Surface Water Purchased |
| System Type | Community Water System |
| Owner | Local Government |
| Status | Active |
| City | Mcalester |
| EPA ZIP on File | 74501 |
Lead & Copper Testing
| Contaminant | Level | EPA Action Level | Status |
|---|---|---|---|
| Lead (90th percentile) | 0.0045 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0026 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0014 mg/L | 0.015 mg/L | Below Action Level |
3 Active Violations
| Contaminant | Violation | Date | Health-Based | Status |
|---|---|---|---|---|
| 2456 | MR | 2025-09-29 | Open | |
| 5200 | TT | 2024-10-17 | Yes | Open |
| 5200 | RPT | 2024-10-17 | Open |
Violation History (31 total)
| Contaminant | Violation | Date | Health-Based | Status |
|---|---|---|---|---|
| 2456 | MR | 2022-12-30 | Returned to Compliance | |
| 2456 | MR | 2022-12-30 | Returned to Compliance | |
| 2950 | MCL Measured: 0.0840 MG/L (limit: 0.0800 MG/L) | 2022-04-01 | Yes | Acknowledged |
| 2950 | MCL Measured: 0.0840 MG/L (limit: 0.0800 MG/L) | 2022-04-01 | Yes | Returned to Compliance |
| 2950 | MCL Measured: 0.0840 MG/L (limit: 0.0800 MG/L) | 2022-04-01 | Yes | Returned to Compliance |
| 2950 | MCL Measured: 0.0840 MG/L (limit: 0.0800 MG/L) | 2022-04-01 | Yes | Acknowledged |
| 2456 | MR | 2020-09-29 | Returned to Compliance | |
| 2456 | MR | 2019-04-01 | Returned to Compliance | |
| 2456 | MCL Measured: 0.0650 MG/L (limit: 0.0600 MG/L) | 2018-01-01 | Yes | Returned to Compliance |
| 2456 | MR | 2017-12-30 | Returned to Compliance | |
| 2456 | MCL Measured: 0.0660 MG/L (limit: 0.0600 MG/L) | 2017-10-01 | Yes | Returned to Compliance |
| 2456 | MCL Measured: 0.0680 MG/L (limit: 0.0600 MG/L) | 2017-07-01 | Yes | Returned to Compliance |
| 2456 | MCL Measured: 0.0720 MG/L (limit: 0.0600 MG/L) | 2017-04-01 | Yes | Returned to Compliance |
| 2950 | MCL Measured: 0.0810 MG/L (limit: 0.0800 MG/L) | 2017-04-01 | Yes | Returned to Compliance |
| 2950 | MCL Measured: 0.0910 MG/L (limit: 0.0800 MG/L) | 2015-01-01 | Yes | Returned to Compliance |
| 2950 | MCL Measured: 0.0970 MG/L (limit: 0.0800 MG/L) | 2014-10-01 | Yes | Returned to Compliance |
| 2950 | MCL Measured: 0.1020 MG/L (limit: 0.0800 MG/L) | 2014-07-01 | Yes | Returned to Compliance |
| 7000 | Other | 2014-07-01 | Returned to Compliance | |
| 2950 | MCL Measured: 0.1100 MG/L (limit: 0.0800 MG/L) | 2014-04-01 | Yes | Returned to Compliance |
| 2950 | MCL Measured: 0.1140 MG/L (limit: 0.0800 MG/L) | 2014-01-01 | Yes | Returned to Compliance |
| 2950 | MCL Measured: 0.1210 MG/L (limit: 0.0800 MG/L) | 2013-10-01 | Yes | Returned to Compliance |
| 3000 | MR Measured: 0 mg/L | 1990-08-01 | Major | Returned to Compliance |
| 3000 | MR Measured: 0 mg/L | 1987-09-01 | Major | Returned to Compliance |
| 3000 | MR Measured: 0 mg/L | 1982-01-31 | Major | Returned to Compliance |
| 3000 | MR Measured: 0 mg/L | 1981-11-30 | Major | Returned to Compliance |
| 3000 | MR Measured: 0 mg/L | 1980-03-31 | Returned to Compliance | |
| 3000 | MR Measured: 0 mg/L | 1980-01-31 | Returned to Compliance | |
| 3000 | MR Measured: 0 mg/L | 1979-12-31 | Returned to Compliance |
Understanding This Water System's Record
Pittsburg Co. Rwd #9 (Mcalester) is a community water system water system that draws from surface water purchased sources and serves a population of 872 in Mcalester, 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.