Yale
PWSID: OK3006039
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: 6.4 per year over the last 5 years, down from 30.4 per year in the previous 5.
System Details
| Population Served | 1,227 |
| Service Connections | 759 |
| Water Source | Surface Water Purchased |
| System Type | Community Water System |
| Owner | Local Government |
| Status | Active |
| City | Yale |
| EPA ZIP on File | 74085 |
Lead & Copper Testing
| Contaminant | Level | EPA Action Level | Status |
|---|---|---|---|
| Lead (90th percentile) | 0.0126 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0115 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0067 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0058 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0030 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0018 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 |
| 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 (191 total)
| Contaminant | Violation | Date | Health-Based | Status |
|---|---|---|---|---|
| 1006 | MR | 2025-07-01 | Major | Acknowledged |
| 8000 | MON | 2025-07-01 | Major | Acknowledged |
| 5200 | TT | 2024-10-17 | Yes | Returned to Compliance |
| 5200 | RPT | 2024-10-17 | Returned to Compliance | |
| 2950 | MR | 2022-12-30 | Returned to Compliance | |
| 7000 | Other | 2022-10-02 | Returned to Compliance | |
| 7000 | Other | 2022-10-02 | Returned to Compliance | |
| 2950 | MCL Measured: 0.1260 MG/L (limit: 0.0800 MG/L) | 2022-01-01 | Yes | Acknowledged |
| 2950 | MCL Measured: 0.1260 MG/L (limit: 0.0800 MG/L) | 2022-01-01 | Yes | Acknowledged |
| 2950 | MCL Measured: 0.1260 MG/L (limit: 0.0800 MG/L) | 2022-01-01 | Yes | Acknowledged |
| 2950 | MCL Measured: 0.1260 MG/L (limit: 0.0800 MG/L) | 2022-01-01 | Yes | Returned to Compliance |
| 2950 | MCL Measured: 0.1050 MG/L (limit: 0.0800 MG/L) | 2022-01-01 | Yes | Acknowledged |
| 2950 | MCL Measured: 0.1050 MG/L (limit: 0.0800 MG/L) | 2022-01-01 | Yes | Acknowledged |
| 2950 | MCL Measured: 0.1050 MG/L (limit: 0.0800 MG/L) | 2022-01-01 | Yes | Acknowledged |
| 2950 | MCL Measured: 0.1050 MG/L (limit: 0.0800 MG/L) | 2022-01-01 | Yes | Returned to Compliance |
| 2950 | MR | 2021-12-30 | Returned to Compliance | |
| 2950 | MR | 2021-12-30 | Returned to Compliance | |
| 2950 | MCL Measured: 0.1140 MG/L (limit: 0.0800 MG/L) | 2021-10-01 | Yes | Acknowledged |
| 2950 | MCL Measured: 0.1140 MG/L (limit: 0.0800 MG/L) | 2021-10-01 | Yes | Acknowledged |
| 2950 | MCL Measured: 0.1140 MG/L (limit: 0.0800 MG/L) | 2021-10-01 | Yes | Returned to Compliance |
| 2950 | MCL Measured: 0.1490 MG/L (limit: 0.0800 MG/L) | 2021-10-01 | Yes | Acknowledged |
| 2950 | MCL Measured: 0.1490 MG/L (limit: 0.0800 MG/L) | 2021-10-01 | Yes | Acknowledged |
| 2950 | MCL Measured: 0.1490 MG/L (limit: 0.0800 MG/L) | 2021-10-01 | Yes | Returned to Compliance |
| 2456 | MR | 2021-09-29 | Returned to Compliance | |
| 2456 | MR | 2021-09-29 | Returned to Compliance | |
| 2950 | MR | 2021-09-29 | Returned to Compliance | |
| 2950 | MR | 2021-09-29 | Returned to Compliance | |
| 2950 | MCL Measured: 0.1160 MG/L (limit: 0.0800 MG/L) | 2021-07-01 | Yes | Acknowledged |
| 2950 | MCL Measured: 0.1160 MG/L (limit: 0.0800 MG/L) | 2021-07-01 | Yes | Acknowledged |
| 2950 | MCL Measured: 0.1650 MG/L (limit: 0.0800 MG/L) | 2021-07-01 | Yes | Acknowledged |
| 2950 | MCL Measured: 0.1650 MG/L (limit: 0.0800 MG/L) | 2021-07-01 | Yes | Acknowledged |
| 2950 | MCL Measured: 0.1650 MG/L (limit: 0.0800 MG/L) | 2021-07-01 | Yes | Returned to Compliance |
| 2950 | MR | 2021-04-01 | Returned to Compliance | |
| 2950 | MCL Measured: 0.1080 MG/L (limit: 0.0800 MG/L) | 2021-04-01 | Yes | Acknowledged |
| 2950 | MCL Measured: 0.1080 MG/L (limit: 0.0800 MG/L) | 2021-04-01 | Yes | Acknowledged |
| 2950 | MCL Measured: 0.1080 MG/L (limit: 0.0800 MG/L) | 2021-04-01 | Yes | Returned to Compliance |
| 2950 | MCL Measured: 0.1690 MG/L (limit: 0.0800 MG/L) | 2021-04-01 | Yes | Acknowledged |
| 2950 | MCL Measured: 0.1690 MG/L (limit: 0.0800 MG/L) | 2021-04-01 | Yes | Acknowledged |
| 2950 | MCL Measured: 0.1690 MG/L (limit: 0.0800 MG/L) | 2021-04-01 | Yes | Returned to Compliance |
| 2950 | MR | 2021-04-01 | Major | Returned to Compliance |
| 2950 | MR | 2021-04-01 | Major | Returned to Compliance |
| 2950 | MR | 2021-04-01 | Major | Returned to Compliance |
| 2456 | MR | 2021-04-01 | Major | Returned to Compliance |
| 2456 | MR | 2021-04-01 | Major | Returned to Compliance |
| 2456 | MR | 2021-04-01 | Major | Returned to Compliance |
| 2950 | MCL Measured: 0.1800 MG/L (limit: 0.0800 MG/L) | 2021-01-01 | Yes | Acknowledged |
| 2950 | MCL Measured: 0.1800 MG/L (limit: 0.0800 MG/L) | 2021-01-01 | Yes | Acknowledged |
| 2950 | MCL Measured: 0.1800 MG/L (limit: 0.0800 MG/L) | 2021-01-01 | Yes | Returned to Compliance |
| 2950 | MCL Measured: 0.1220 MG/L (limit: 0.0800 MG/L) | 2021-01-01 | Yes | Acknowledged |
| 2950 | MCL Measured: 0.1220 MG/L (limit: 0.0800 MG/L) | 2021-01-01 | Yes | Acknowledged |
Showing 50 of 191 historical violations.
Understanding This Water System's Record
Yale is a community water system water system that draws from surface water purchased sources and serves a population of 1,227 in Yale, 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.