Seba Dalkai Boarding School BIA
Arizona — Community Water System — PWSID: NN0436019
System Information
| PWSID | NN0436019 |
| System Name | Seba Dalkai Boarding School BIA |
| System Type | Community Water System |
| Water Source | Ground Water Purchased |
| Activity Status | Active |
| Owner Type | Federal |
| EPA Region | 09 |
| Serves School | Yes |
| Wholesaler | No |
| First Reported | Feb 2, 1984 |
| Last Reported | Dec 31, 2025 |
Location & Contact
| State | Arizona |
| City | Winslow |
| ZIP Code | 86047 |
| Address | HC 63 Box H |
| Organization | BIA Seba Dalkai Boarding School, Inc |
| Phone | 9286573208 |
Population & Service
| Population Served | 250 |
| Service Connections | 20 |
Drinking Water Violations (191)
This water system has 191 violations recorded in the EPA SDWIS database.
| Begin Date | End Date | Contaminant | Category | Health-Based | Major | Measured | Federal MCL | State MCL | Status | Return to Compliance | Rule |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Apr 1, 2025 | — | RPT | No | No | — | — | — | Unaddressed | — | — | |
| Feb 1, 2025 | Feb 28, 2025 | MON | No | Yes | — | — | — | Resolved | Feb 28, 2025 | — | |
| Oct 1, 2023 | — | RPT | No | No | — | — | — | Resolved | Nov 30, 2023 | — | |
| Oct 1, 2022 | — | RPT | No | No | — | — | — | Resolved | Nov 17, 2022 | — | |
| Apr 1, 2022 | Jun 30, 2022 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | May 31, 2022 | — | |
| Apr 1, 2022 | Jun 30, 2022 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | May 31, 2022 | — | |
| Apr 1, 2022 | Jun 30, 2022 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | May 31, 2022 | — | |
| Apr 1, 2022 | Jun 30, 2022 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | May 31, 2022 | — | |
| Oct 1, 2021 | Dec 31, 2021 | MCL | Yes | No | .0883 MG/L | 0.080 mg/L | — | Resolved | Dec 31, 2021 | — | |
| Oct 1, 2021 | — | Other | No | No | — | — | — | Resolved | Nov 4, 2021 | — | |
| Oct 1, 2021 | Dec 31, 2021 | MCL | Yes | No | .0883 MG/L | 0.080 mg/L | — | Resolved | Dec 31, 2021 | — | |
| Jul 1, 2021 | Sep 30, 2021 | MCL | Yes | No | .0992 MG/L | 0.080 mg/L | — | Resolved | Sep 30, 2021 | — | |
| Jul 1, 2021 | Sep 30, 2021 | MCL | Yes | No | .0992 MG/L | 0.080 mg/L | — | Resolved | Sep 30, 2021 | — | |
| Apr 1, 2021 | Jun 30, 2021 | MCL | Yes | No | .0924 MG/L | 0.080 mg/L | — | Resolved | Jun 30, 2021 | — | |
| Apr 1, 2021 | — | Other | No | No | — | — | — | Resolved | Apr 15, 2021 | — | |
| Apr 1, 2021 | Jun 30, 2021 | MCL | Yes | No | .0924 MG/L | 0.080 mg/L | — | Resolved | Jun 30, 2021 | — | |
| Jan 1, 2021 | Mar 31, 2021 | MCL | Yes | No | .1218 MG/L | 0.080 mg/L | — | Resolved | Mar 31, 2021 | — | |
| Jan 1, 2021 | Mar 31, 2021 | MCL | Yes | No | .1218 MG/L | 0.080 mg/L | — | Resolved | Mar 31, 2021 | — | |
| Jan 1, 2021 | Jan 31, 2021 | MON | No | Yes | — | — | — | Resolved | Jan 31, 2021 | — | |
| Oct 1, 2020 | Dec 31, 2020 | MCL | Yes | No | .1082 MG/L | 0.080 mg/L | — | Resolved | Dec 31, 2020 | — | |
| Oct 1, 2020 | Dec 31, 2020 | MCL | Yes | No | .1082 MG/L | 0.080 mg/L | — | Resolved | Dec 31, 2020 | — | |
| Jul 1, 2020 | — | Other | No | No | — | — | — | Unaddressed | — | — | |
| Jul 1, 2020 | — | Other | No | No | — | — | — | Unaddressed | — | — | |
| Jul 1, 2020 | Sep 30, 2020 | MCL | Yes | No | .1244 MG/L | 0.080 mg/L | — | Resolved | Sep 30, 2020 | — | |
| Jul 1, 2020 | Sep 30, 2020 | MCL | Yes | No | .1244 MG/L | 0.080 mg/L | — | Resolved | Sep 30, 2020 | — | |
| May 1, 2020 | — | RPT | No | No | — | — | — | Resolved | Jun 19, 2020 | — | |
| Apr 1, 2020 | Jun 30, 2020 | MCL | Yes | No | .1247 MG/L | 0.080 mg/L | — | Resolved | Jun 30, 2020 | — | |
| Apr 1, 2020 | Jun 30, 2020 | MCL | Yes | No | .1247 MG/L | 0.080 mg/L | — | Resolved | Jun 30, 2020 | — | |
| Jan 1, 2020 | Mar 31, 2020 | MCL | Yes | No | .1187 MG/L | 0.080 mg/L | — | Resolved | Mar 31, 2020 | — | |
| Jan 1, 2020 | Mar 31, 2020 | MCL | Yes | No | .1187 MG/L | 0.080 mg/L | — | Resolved | Mar 31, 2020 | — | |
| Oct 1, 2019 | Dec 31, 2019 | MCL | Yes | No | .1195 MG/L | 0.080 mg/L | — | Resolved | Dec 31, 2019 | — | |
| Oct 1, 2019 | — | Other | No | No | — | — | — | Unaddressed | — | — | |
| Oct 1, 2019 | Dec 31, 2019 | MCL | Yes | No | .1195 MG/L | 0.080 mg/L | — | Resolved | Dec 31, 2019 | — | |
| Jul 1, 2019 | Sep 30, 2019 | MCL | Yes | No | .103 MG/L | 0.080 mg/L | — | Resolved | Sep 30, 2019 | — | |
| Jul 1, 2019 | — | Other | No | No | — | — | — | Unaddressed | — | — | |
| Jul 1, 2019 | Sep 30, 2019 | MCL | Yes | No | .103 MG/L | 0.080 mg/L | — | Resolved | Sep 30, 2019 | — | |
| Apr 1, 2019 | — | Other | No | No | — | — | — | Resolved | Apr 12, 2019 | — | |
| Apr 1, 2019 | Jun 30, 2019 | MCL | Yes | No | .1469 MG/L | 0.080 mg/L | — | Resolved | Jun 30, 2019 | — | |
| Apr 1, 2019 | Jun 30, 2019 | MCL | Yes | No | .1469 MG/L | 0.080 mg/L | — | Resolved | Jun 30, 2019 | — | |
| Jan 1, 2019 | Mar 31, 2019 | MCL | Yes | No | .1602 MG/L | 0.080 mg/L | — | Resolved | Mar 31, 2019 | — | |
| Jan 1, 2019 | Mar 31, 2019 | MCL | Yes | No | .1602 MG/L | 0.080 mg/L | — | Resolved | Mar 31, 2019 | — | |
| Jan 1, 2019 | Mar 31, 2019 | MCL | Yes | No | .1602 MG/L | 0.080 mg/L | — | Resolved | Mar 31, 2019 | — | |
| Oct 1, 2018 | Dec 31, 2018 | MCL | Yes | No | .1877 MG/L | 0.080 mg/L | — | Resolved | Dec 31, 2018 | — | |
| Oct 1, 2018 | Dec 31, 2018 | MCL | Yes | No | .1877 MG/L | 0.080 mg/L | — | Resolved | Dec 31, 2018 | — | |
| Oct 1, 2018 | — | Other | No | No | — | — | — | Resolved | Apr 12, 2019 | — | |
| Oct 1, 2018 | Dec 31, 2018 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Dec 31, 2018 | — | |
| Oct 1, 2018 | Dec 31, 2018 | MCL | Yes | No | .1877 MG/L | 0.080 mg/L | — | Resolved | Dec 31, 2018 | — | |
| Oct 1, 2018 | Dec 31, 2018 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Dec 31, 2018 | — | |
| Oct 1, 2018 | Dec 31, 2018 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Dec 31, 2018 | — | |
| Oct 1, 2018 | Dec 31, 2018 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Dec 31, 2018 | — |
About This Water System
Public water system data comes from the EPA Safe Drinking Water Information System (SDWIS). Systems with violations must notify customers. Contact your water utility for the latest annual water quality report.