Public water system record
Pinon-District 4 NTUA
On record as serving Pinon, Navajo County, AZ · Serves 5,195 people
Federal records show no health-based violations and 6 monitoring/reporting issues for Pinon-District 4 NTUA in the last ten years. At least one of these issues remains unresolved.
System profile
- Health-based violations, last 10 years
- 0
- Resolved
- 0
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 6
Key facts
- Pinon-District 4 NTUA draws water from 3 wells.
- Record on file since 2002, with 0 health-based violations before October 19, 2016.
Check whether Pinon-District 4 NTUA serves your address
Health-based violations
Since October 2016Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.
None since October 2016.
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Beryllium, Total
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Arsenic
Monitoring and reporting
|
Jan 1, 2017 | Resolved |
|
Revised Total Coliform Rule
OTHER
|
Apr 1, 2016 | Resolved |
|
Stage 2 Disinfection Byproducts Rule
Monitoring and reporting
|
Oct 1, 2013 | Active |
Full record since 2002
EPA's records for Pinon-District 4 NTUA go back to 2002. Before October 19, 2016 they list no health-based violations and 33 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 2000s | 0 | 28 |
| 2010 to October 18, 2016 | 0 | 5 |
| October 19, 2016 to 2019 | 0 | 1 |
| 2020s | 0 | 3 |
Where the water comes from
Pinon-District 4 NTUA draws water from 3 wells. 3 other community water systems buy water from Pinon-District 4 NTUA.
Community systems that buy water from it
- Cottonwood-Tselani NTUA Ft Defiance, AZ
- Low Mountain Boarding School BIA Pinon, AZ
- Pinon Community Dormitory School BIA Pinon, AZ
Annual water quality report
Pinon-District 4 NTUA must give its customers an annual water quality report (Consumer Confidence Report) by July 1, with the levels its tests found in the previous year.
Where the state allows it, systems serving fewer than 10,000 people may publish the report in a local newspaper or news site instead of mailing it, and must provide a copy on request.
Find a posted report with EPA's Consumer Confidence Report search
Testing your own water
To test the water at your tap, or a private well this record does not cover, use a laboratory certified for drinking water by EPA Region 9.
Certified drinking water labs by state EPA guidance for private wells