Public water system record
Dennehotso Boarding School BIA
On record as serving Dennehotso, Apache County, AZ · Serves 300 people
Federal records show no health-based violations and 7 monitoring/reporting issues for Dennehotso Boarding School BIA in the last ten years.
System profile
- Health-based violations, last 10 years
- 0
- Resolved
- 0
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 7
Key facts
- Dennehotso Boarding School BIA draws water from 2 wells.
- Record on file since 1996, with 1 health-based violation before October 19, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 20 service lines.
Check whether Dennehotso Boarding School BIA 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 |
|---|---|---|
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2024 | Resolved |
|
Revised Total Coliform Rule
RPT
|
Jan 1, 2024 | Resolved |
|
Revised Total Coliform Rule
RPT
|
Oct 1, 2023 | Resolved |
|
Revised Total Coliform Rule
RPT
|
Oct 1, 2022 | Resolved |
|
Revised Total Coliform Rule
RPT
|
May 1, 2020 | Resolved |
|
Revised Total Coliform Rule
OTHER
|
Apr 1, 2016 | Resolved |
|
Stage 2 Disinfection Byproducts Rule
Monitoring and reporting
|
Oct 1, 2013 | Resolved |
Full record since 1996
EPA's records for Dennehotso Boarding School BIA go back to 1996. Before October 19, 2016 they list 1 health-based violation (1 resolved) and 70 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 0 | 2 |
| 2000s | 0 | 61 |
| 2010 to October 18, 2016 | 1 | 7 |
| 2020s | 0 | 5 |
Most recent health-based violation before October 19, 2016: Arsenic, began October 2010, Resolved.
Show the health-based violation before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Arsenic
Contaminant limit exceeded
Measured 0.015 mg/L, federal limit 0.01 mg/L (1.5 times the limit)
|
Oct 1, 2010 | Resolved |
Where the water comes from
Dennehotso Boarding School BIA draws water from 2 wells.
Annual water quality report
Dennehotso Boarding School BIA 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.
Systems serving 500 or fewer people may meet the rule by telling customers the report is available on request, so you may need to ask Dennehotso Boarding School BIA for a copy.
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