Long House Valley NTUA
Arizona — Community Water System — PWSID: NN0400825
System Information
| PWSID | NN0400825 |
| System Name | Long House Valley NTUA |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Native American |
| EPA Region | 09 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Sep 17, 2019 |
| Last Reported | Dec 31, 2025 |
Location & Contact
| State | Arizona |
| City | Ft Defiance |
| ZIP Code | 86504 |
| Address | Office of Deputy General Manager |
| Organization | Navajo Tribal Utility Authority |
| Phone | 9287296277 |
Population & Service
| Population Served | 277 |
| Service Connections | 81 |
Drinking Water Violations (33)
This water system has 33 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Oct 1, 2020 | Dec 31, 2020 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Dec 31, 2020 | — | |
| Oct 1, 2020 | Dec 31, 2020 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Dec 31, 2020 | — | |
| Oct 1, 2020 | Dec 31, 2020 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Dec 31, 2020 | — | |
| Oct 1, 2020 | Dec 31, 2020 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Dec 31, 2020 | — | |
| Oct 1, 2020 | Dec 31, 2020 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Dec 31, 2020 | — | |
| Oct 1, 2020 | Dec 31, 2020 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Dec 31, 2020 | — | |
| Jul 1, 2020 | Sep 30, 2020 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Sep 30, 2020 | — | |
| Jul 1, 2020 | Sep 30, 2020 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Sep 30, 2020 | — | |
| Jul 1, 2020 | Sep 30, 2020 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Sep 30, 2020 | — | |
| Jul 1, 2020 | Sep 30, 2020 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Sep 30, 2020 | — | |
| Jul 1, 2020 | Sep 30, 2020 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Sep 30, 2020 | — | |
| Jul 1, 2020 | Sep 30, 2020 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Sep 30, 2020 | — | |
| Apr 1, 2020 | Jun 30, 2020 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Jun 30, 2020 | — | |
| Apr 1, 2020 | Jun 30, 2020 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Jun 30, 2020 | — | |
| Apr 1, 2020 | Jun 30, 2020 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Jun 30, 2020 | — | |
| Apr 1, 2020 | Jun 30, 2020 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Jun 30, 2020 | — | |
| Apr 1, 2020 | Jun 30, 2020 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Jun 30, 2020 | — | |
| Apr 1, 2020 | Jun 30, 2020 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Jun 30, 2020 | — | |
| Jan 1, 2020 | Mar 31, 2020 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Mar 31, 2020 | — | |
| Jan 1, 2020 | Mar 31, 2020 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Mar 31, 2020 | — | |
| Jan 1, 2020 | Mar 31, 2020 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Mar 31, 2020 | — | |
| Jan 1, 2020 | Mar 31, 2020 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Mar 31, 2020 | — | |
| Jan 1, 2020 | — | MR | No | No | — | TT | — | Resolved | May 11, 2020 | — | |
| Jan 1, 2020 | — | MR | No | No | — | TT | — | Resolved | May 11, 2020 | — | |
| Jan 1, 2020 | — | MR | No | No | — | TT | — | Resolved | May 11, 2020 | — | |
| Jan 1, 2020 | Mar 31, 2020 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Mar 31, 2020 | — | |
| Jan 1, 2020 | Mar 31, 2020 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Mar 31, 2020 | — | |
| Oct 1, 2019 | Dec 31, 2019 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Dec 31, 2019 | — | |
| Oct 1, 2019 | Dec 31, 2019 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Dec 31, 2019 | — | |
| Oct 1, 2019 | Dec 31, 2019 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Dec 31, 2019 | — | |
| Oct 1, 2019 | Dec 31, 2019 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Dec 31, 2019 | — | |
| Apr 1, 2016 | — | Other | No | No | — | — | — | Unaddressed | — | — | |
| Oct 1, 2013 | — | MR | No | Yes | — | — | — | Unaddressed | — | — |
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.