Seba Dalkai Boarding School Bia
PWSID: NN0436019
This system has unresolved violations related to monitoring, reporting, or procedural requirements, but none involve contaminant levels exceeding EPA health limits.
This system has more violations on record than 95% of water systems in Arizona.
Violation trend: 13.4 per year over the last 5 years, down from 19.8 per year in the previous 5.
System Details
| Population Served | 250 |
| Service Connections | 20 |
| Water Source | Groundwater Purchased |
| System Type | Community Water System |
| Owner | Federal |
| Status | Active |
| City | Winslow |
| EPA ZIP on File | 86047 |
| Note | School or Daycare |
Areas Served
- Seba Dalkai
Lead & Copper Testing
| Contaminant | Level | EPA Action Level | Status |
|---|---|---|---|
| Lead (90th percentile) | 0.0021 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) | 0.0009 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0005 mg/L | 0.015 mg/L | Below Action Level |
4 Active Violations
| Contaminant | Violation | Date | Health-Based | Status |
|---|---|---|---|---|
| 8000 | RPT | 2025-04-01 | Open | |
| 7500 | Other | 2020-07-01 | Open | |
| 7500 | Other | 2019-10-01 | Open | |
| 7500 | Other | 2019-07-01 | Open |
Violation History (186 total)
| Contaminant | Violation | Date | Health-Based | Status |
|---|---|---|---|---|
| 8000 | MON | 2025-02-01 | Major | Returned to Compliance |
| 0999 | MR | 2025-01-01 | Major | Returned to Compliance |
| 2456 | MR | 2024-07-01 | Major | Acknowledged |
| 2950 | MR | 2024-07-01 | Major | Acknowledged |
| 2950 | MCL Measured: 0.0871 MG/L | 2024-04-01 | Yes | Returned to Compliance |
| 2950 | MCL Measured: 0.0871 MG/L | 2024-04-01 | Yes | Acknowledged |
| 2950 | MCL Measured: 0.0871 MG/L | 2024-04-01 | Yes | Returned to Compliance |
| 2456 | MR | 2024-04-01 | Major | Acknowledged |
| 2456 | MR | 2024-04-01 | Major | Returned to Compliance |
| 2950 | MR | 2024-04-01 | Major | Acknowledged |
| 2950 | MR | 2024-04-01 | Major | Returned to Compliance |
| 2950 | MCL Measured: 0.0871 MG/L | 2024-01-01 | Yes | Returned to Compliance |
| 2950 | MCL Measured: 0.0871 MG/L | 2024-01-01 | Yes | Acknowledged |
| 2950 | MCL Measured: 0.0871 MG/L | 2024-01-01 | Yes | Returned to Compliance |
| 2950 | MCL Measured: 0.1185 MG/L | 2023-10-01 | Yes | Returned to Compliance |
| 2950 | MCL Measured: 0.1185 MG/L | 2023-10-01 | Yes | Acknowledged |
| 8000 | RPT | 2023-10-01 | Returned to Compliance | |
| 8000 | RPT | 2023-10-01 | Returned to Compliance | |
| 2950 | MCL Measured: 0.1548 MG/L | 2023-07-01 | Yes | Acknowledged |
| 2950 | MCL Measured: 0.1548 MG/L | 2023-07-01 | Yes | Returned to Compliance |
| 2950 | MCL Measured: 0.1548 MG/L | 2023-07-01 | Yes | Acknowledged |
| 2950 | MCL Measured: 0.1593 MG/L | 2023-04-01 | Yes | Acknowledged |
| 2950 | MCL Measured: 0.1593 MG/L | 2023-04-01 | Yes | Acknowledged |
| 2950 | MCL Measured: 0.1593 MG/L | 2023-04-01 | Yes | Returned to Compliance |
| 2950 | MCL Measured: 0.1593 MG/L | 2023-04-01 | Yes | Acknowledged |
| 2950 | MCL Measured: 0.1685 MG/L | 2023-01-01 | Yes | Acknowledged |
| 2950 | MCL Measured: 0.1685 MG/L | 2023-01-01 | Yes | Acknowledged |
| 2950 | MCL Measured: 0.1685 MG/L | 2023-01-01 | Yes | Returned to Compliance |
| 2950 | MCL Measured: 0.1685 MG/L | 2023-01-01 | Yes | Acknowledged |
| 7500 | Other | 2023-01-01 | Returned to Compliance | |
| 2950 | MCL Measured: 0.1808 MG/L | 2022-10-01 | Yes | Acknowledged |
| 2950 | MCL Measured: 0.1808 MG/L | 2022-10-01 | Yes | Acknowledged |
| 2950 | MCL Measured: 0.1808 MG/L | 2022-10-01 | Yes | Returned to Compliance |
| 8000 | RPT | 2022-10-01 | Returned to Compliance | |
| 8000 | RPT | 2022-10-01 | Returned to Compliance | |
| 7500 | Other | 2022-10-01 | Returned to Compliance | |
| 7500 | Other | 2022-10-01 | Returned to Compliance | |
| 2950 | MCL Measured: 0.1567 MG/L | 2022-07-01 | Yes | Acknowledged |
| 2950 | MCL Measured: 0.1567 MG/L | 2022-07-01 | Yes | Acknowledged |
| 2950 | MCL Measured: 0.1567 MG/L | 2022-07-01 | Yes | Acknowledged |
| 2950 | MCL Measured: 0.1567 MG/L | 2022-07-01 | Yes | Returned to Compliance |
| 7500 | Other | 2022-07-01 | Returned to Compliance | |
| 7500 | Other | 2022-07-01 | Returned to Compliance | |
| 2950 | MCL Measured: 0.0998 MG/L | 2022-04-01 | Yes | Acknowledged |
| 2950 | MCL Measured: 0.0998 MG/L | 2022-04-01 | Yes | Acknowledged |
| 2950 | MCL Measured: 0.0998 MG/L | 2022-04-01 | Yes | Acknowledged |
| 2950 | MCL Measured: 0.0998 MG/L | 2022-04-01 | Yes | Returned to Compliance |
| 2456 | MR | 2022-04-01 | Major | Returned to Compliance |
| 2456 | MR | 2022-04-01 | Major | Returned to Compliance |
| 2456 | MR | 2022-04-01 | Major | Returned to Compliance |
Showing 50 of 182 historical violations.
Understanding This Water System's Record
Seba Dalkai Boarding School Bia is a community water system water system that draws from groundwater purchased sources and serves a population of 250 in Winslow, Arizona. 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.