Avant Utilities Authority
PWSID: OK1021305
This system currently has unresolved violations for: 5200. These violations mean contaminant levels exceeded EPA limits or required treatment was not performed.
This system has more violations on record than 92% of water systems in Oklahoma.
Violation trend: 28.6 per year over the last 5 years, up from 10.6 per year in the previous 5.
System Details
| Population Served | 361 |
| Service Connections | 165 |
| Water Source | Surface Water |
| System Type | Community Water System |
| Owner | Local Government |
| Status | Active |
| City | Avant |
| EPA ZIP on File | 74001 |
Lead & Copper Testing
| Contaminant | Level | EPA Action Level | Status |
|---|---|---|---|
| Lead (90th percentile) | 0.0051 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0050 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0020 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) | 0.0010 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 |
5 Active Violations
| Contaminant | Violation | Date | Health-Based | Status |
|---|---|---|---|---|
| 2456 | MR | 2025-09-29 | Open | |
| 2950 | MR | 2025-09-29 | Open | |
| 7000 | Other | 2025-07-01 | Open | |
| 5200 | TT | 2024-10-17 | Yes | Open |
| 5200 | RPT | 2024-10-17 | Open |
Violation History (285 total)
| Contaminant | Violation | Date | Health-Based | Status |
|---|---|---|---|---|
| 0200 | MR | 2025-08-01 | Major | Acknowledged |
| 0200 | MR | 2025-07-01 | Major | Acknowledged |
| 2456 | MCL Measured: 0.1130 MG/L (limit: 0.0600 MG/L) | 2025-07-01 | Yes | Acknowledged |
| 2950 | MCL Measured: 0.1050 MG/L (limit: 0.0800 MG/L) | 2025-07-01 | Yes | Acknowledged |
| 0200 | MR | 2025-06-01 | Major | Acknowledged |
| 0200 | MR | 2025-05-01 | Major | Acknowledged |
| 0200 | MR | 2025-05-01 | Major | Acknowledged |
| 2950 | MR | 2025-04-01 | Returned to Compliance | |
| 2456 | MR | 2025-04-01 | Returned to Compliance | |
| 2456 | MCL Measured: 0.0930 MG/L (limit: 0.0600 MG/L) | 2025-04-01 | Yes | Acknowledged |
| 2950 | MCL Measured: 0.0990 MG/L (limit: 0.0800 MG/L) | 2025-04-01 | Yes | Acknowledged |
| 0200 | MR | 2025-01-01 | Major | Acknowledged |
| 0200 | MR | 2025-01-01 | Major | Returned to Compliance |
| 2456 | MCL Measured: 0.0660 MG/L (limit: 0.0600 MG/L) | 2025-01-01 | Yes | Acknowledged |
| 2950 | MCL Measured: 0.0870 MG/L (limit: 0.0800 MG/L) | 2025-01-01 | Yes | Acknowledged |
| 0200 | MR | 2024-12-01 | Major | Acknowledged |
| 0200 | MR | 2024-12-01 | Major | Returned to Compliance |
| 0200 | MR | 2024-10-01 | Major | Acknowledged |
| 0200 | MR | 2024-10-01 | Major | Returned to Compliance |
| 2456 | MCL Measured: 0.0680 MG/L (limit: 0.0600 MG/L) | 2024-10-01 | Yes | Acknowledged |
| 2950 | MCL Measured: 0.0890 MG/L (limit: 0.0800 MG/L) | 2024-10-01 | Yes | Acknowledged |
| 0200 | MR | 2024-09-01 | Major | Returned to Compliance |
| 0200 | MR | 2024-09-01 | Major | Acknowledged |
| 0200 | MR | 2024-09-01 | Major | Acknowledged |
| 0200 | MR | 2024-09-01 | Major | Returned to Compliance |
| 0200 | MR | 2024-08-01 | Major | Returned to Compliance |
| 0200 | MR | 2024-08-01 | Major | Acknowledged |
| 0200 | MR | 2024-08-01 | Major | Acknowledged |
| 0200 | MR | 2024-08-01 | Major | Returned to Compliance |
| 7000 | Other | 2024-07-01 | Returned to Compliance | |
| 7000 | Other | 2024-07-01 | Returned to Compliance | |
| 0200 | MR | 2024-07-01 | Major | Returned to Compliance |
| 0200 | MR | 2024-07-01 | Major | Acknowledged |
| 0200 | MR | 2024-07-01 | Major | Returned to Compliance |
| 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 |
| 2950 | MCL Measured: 0.0970 MG/L (limit: 0.0800 MG/L) | 2024-07-01 | Yes | Acknowledged |
| 2950 | MCL Measured: 0.0970 MG/L (limit: 0.0800 MG/L) | 2024-07-01 | Yes | Acknowledged |
| 2950 | MCL Measured: 0.0970 MG/L (limit: 0.0800 MG/L) | 2024-07-01 | Yes | Acknowledged |
| 0200 | MR | 2024-05-01 | Major | Returned to Compliance |
| 0200 | MR | 2024-05-01 | Major | Acknowledged |
| 0200 | MR | 2024-05-01 | Major | Returned to Compliance |
| 2456 | MCL Measured: 0.0850 MG/L (limit: 0.0600 MG/L) | 2024-04-01 | Yes | Acknowledged |
| 2456 | MCL Measured: 0.0850 MG/L (limit: 0.0600 MG/L) | 2024-04-01 | Yes | Acknowledged |
| 2456 | MCL Measured: 0.0850 MG/L (limit: 0.0600 MG/L) | 2024-04-01 | Yes | Acknowledged |
| 2950 | MCL Measured: 0.0900 MG/L (limit: 0.0800 MG/L) | 2024-04-01 | Yes | Acknowledged |
| 2950 | MCL Measured: 0.0900 MG/L (limit: 0.0800 MG/L) | 2024-04-01 | Yes | Acknowledged |
| 2950 | MCL Measured: 0.0900 MG/L (limit: 0.0800 MG/L) | 2024-04-01 | Yes | Acknowledged |
| 2456 | MCL Measured: 0.0820 MG/L (limit: 0.0600 MG/L) | 2024-01-01 | Yes | Acknowledged |
Showing 50 of 280 historical violations.
Understanding This Water System's Record
Avant Utilities Authority is a community water system water system that draws from surface water sources and serves a population of 361 in Avant, 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.