Greasewood Springs Community Boarding School BIA
Arizona - Community Water System - PWSID: NN0436008
System Information
| PWSID | NN0436008 |
| System Name | Greasewood Springs Community Boarding School BIA |
| System Type | Community Water System |
| Water Source | Ground Water |
| 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 | Ganado |
| ZIP Code | 86505-9706 |
| Address | HC 58 Box 60 |
| Organization | BIA Greasewood Springs Community School |
| Phone | 9286543331 |
Population & Service
| Population Served | 720 |
| Service Connections | 81 |
Drinking Water Violations (216)
This water system has 216 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 | - | - | |
| Mar 1, 2025 | - | Other | No | No | - | - | - | Unaddressed | - | - | |
| Mar 1, 2025 | Mar 31, 2025 | MON | No | Yes | - | - | - | Resolved | Mar 12, 2025 | - | |
| Oct 1, 2024 | - | Other | No | No | - | - | - | Unaddressed | - | - | |
| Oct 1, 2024 | Oct 31, 2024 | MON | No | Yes | - | - | - | Resolved | Oct 31, 2024 | - | |
| Jul 1, 2024 | - | Other | No | No | - | - | - | Resolved | Oct 10, 2025 | - | |
| Jul 1, 2024 | - | Other | No | No | - | - | - | Resolved | Oct 10, 2025 | - | |
| May 1, 2024 | - | MR | No | Yes | - | - | - | Unaddressed | - | - | |
| May 1, 2024 | - | MR | No | Yes | - | - | - | Unaddressed | - | - | |
| Feb 1, 2024 | Feb 29, 2024 | MON | No | Yes | - | - | - | Resolved | Feb 29, 2024 | - | |
| Jan 1, 2024 | Dec 31, 2024 | MR | No | Yes | - | 2 mg/L | - | Archived | Dec 31, 2024 | - | |
| Jan 1, 2024 | Dec 31, 2024 | MR | No | Yes | - | 2 mg/L | - | Archived | Dec 31, 2024 | - | |
| Jan 1, 2024 | Dec 31, 2024 | MR | No | Yes | - | 1 mg/L | - | Archived | Dec 31, 2024 | - | |
| Jan 1, 2024 | Dec 31, 2024 | MR | No | Yes | - | 1 mg/L | - | Archived | Dec 31, 2024 | - | |
| Jan 1, 2024 | Dec 31, 2024 | MR | No | Yes | - | 10 mg/L | - | Archived | Dec 31, 2024 | - | |
| Jan 1, 2024 | Dec 31, 2024 | MR | No | Yes | - | 10 mg/L | - | Archived | Dec 31, 2024 | - | |
| Oct 1, 2023 | - | RPT | No | No | - | - | - | Resolved | Nov 30, 2023 | - | |
| Aug 1, 2023 | Aug 31, 2023 | MON | No | Yes | - | - | - | Resolved | Aug 31, 2023 | - | |
| Oct 1, 2022 | - | RPT | No | No | - | - | - | Resolved | Nov 17, 2022 | - | |
| May 1, 2020 | - | RPT | No | No | - | - | - | Resolved | Jun 19, 2020 | - | |
| Apr 1, 2016 | - | Other | No | No | - | - | - | Resolved | Dec 5, 2017 | - | |
| Apr 1, 2016 | - | Other | No | No | - | - | - | Resolved | Dec 5, 2017 | - | |
| Apr 1, 2016 | - | Other | No | No | - | - | - | Resolved | Dec 5, 2017 | - | |
| Jan 1, 2016 | Dec 31, 2016 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Dec 31, 2016 | - | |
| Jan 1, 2016 | Dec 31, 2016 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Dec 31, 2016 | - | |
| Jan 1, 2016 | Dec 31, 2016 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Dec 31, 2016 | - | |
| Jan 1, 2016 | Dec 31, 2016 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Dec 31, 2016 | - | |
| Jan 1, 2016 | Dec 31, 2016 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Dec 31, 2016 | - | |
| Jan 1, 2016 | Dec 31, 2016 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Dec 31, 2016 | - | |
| Jan 1, 2014 | Mar 31, 2014 | MR | No | Yes | - | 2 mg/L | - | Resolved | Mar 31, 2014 | - | |
| Oct 1, 2013 | - | MR | No | Yes | - | - | - | Resolved | Dec 5, 2017 | - | |
| Oct 1, 2013 | - | MR | No | Yes | - | - | - | Resolved | Dec 5, 2017 | - | |
| Oct 1, 2013 | Dec 31, 2013 | MCL | Yes | No | 3 MG/L | 2 mg/L | - | Resolved | Dec 31, 2013 | - | |
| Oct 1, 2013 | - | MR | No | Yes | - | - | - | Resolved | Dec 5, 2017 | - | |
| Oct 1, 2013 | - | Other | No | No | - | - | - | Resolved | Aug 28, 2014 | - | |
| Jul 1, 2013 | Sep 30, 2013 | MCL | Yes | No | 3 MG/L | 2 mg/L | - | Resolved | Sep 30, 2013 | - | |
| Jul 1, 2013 | Sep 30, 2013 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Sep 16, 2013 | - | |
| Jul 1, 2013 | Sep 30, 2013 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Sep 16, 2013 | - | |
| Apr 1, 2013 | Jun 30, 2013 | MCL | Yes | No | 3 MG/L | 2 mg/L | - | Resolved | Jun 30, 2013 | - | |
| Apr 1, 2013 | Jun 30, 2013 | MCL | Yes | No | 3 MG/L | 2 mg/L | - | Resolved | Jun 30, 2013 | - | |
| Apr 1, 2013 | Jun 30, 2013 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Jun 30, 2013 | - | |
| Apr 1, 2013 | Jun 30, 2013 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Jun 30, 2013 | - | |
| Apr 1, 2013 | Jun 30, 2013 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Jun 30, 2013 | - | |
| Apr 1, 2013 | Jun 30, 2013 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Jun 30, 2013 | - | |
| Jan 1, 2013 | Mar 31, 2013 | MCL | Yes | No | 2.7 MG/L | 2 mg/L | - | Resolved | Mar 31, 2013 | - | |
| Jan 1, 2013 | Mar 31, 2013 | MCL | Yes | No | 2.7 MG/L | 2 mg/L | - | Resolved | Mar 31, 2013 | - | |
| Jan 1, 2013 | Mar 31, 2013 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Mar 31, 2013 | - | |
| Jan 1, 2013 | Mar 31, 2013 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Mar 31, 2013 | - | |
| Dec 1, 2012 | Dec 31, 2012 | MR | No | No | - | 5% of samples | - | Resolved | Dec 31, 2012 | - | |
| Dec 1, 2012 | Dec 31, 2012 | MR | No | No | - | 5% of samples | - | Resolved | Dec 31, 2012 | - |
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.