Navajo Mountain Community Boarding School BIA
PWSID: NN4933011 · Tonalea, AZ · Serves 163 people
According to EPA Safe Drinking Water Information System (SDWIS), Navajo Mountain Community Boarding School BIA (PWSID NN4933011) in Tonalea, AZ is listed as a CWS water system covering about 163 people. The same extract lists 6 health-based violation records spanning 2017-2018. Those 6 health-based rows for Navajo Mountain Community Boarding School BIA cover contaminants such as TTHM; they remain historical EPA registry entries, not a current compliance or drinkability score.
Navajo Mountain Community Boarding School BIA has 6 health-based violation records in this historical extract. Monitoring and reporting records are not included.
PlainEnviro's health-based SDWIS extract covers monitoring and reporting violations only -- it does not include unresolved enforcement actions in progress or corrective steps a utility has taken since the extract date. 1 distinct EPA contaminant code appears in this system's record, including TTHM. Recorded violations span 2017–2018. Day-to-day primacy enforcement for this system runs through the Arizona drinking-water program, not EPA directly.
A historical health-based record does not necessarily describe current water quality or compliance. The most authoritative current source is the utility's annual Consumer Confidence Report. For enforcement history and corrective-action orders, consult EPA ECHO and the Arizona state drinking-water program's public portal.
System Details
- EPA ID (PWSID)
- NN4933011
- System Type
- CWS
- Water Source
- Groundwater
- Location
- Tonalea, AZ
- Population Served
- 163
- Health Violations
- Yes (6)
What contaminants are in this water system?
| Contaminant | Violations | Health-Based |
|---|---|---|
| TTHM | 6 | 6 |
Violation History (6)
Frequently Asked Questions
What does EPA SDWIS list for Navajo Mountain Community Boarding School BIA?
How many people does Navajo Mountain Community Boarding School BIA serve?
What violations does Navajo Mountain Community Boarding School BIA have?
What contaminants have been found in Navajo Mountain Community Boarding School BIA water?
Compare beyond Arizona
Nationwide peers by violations & population served
Cross-state SDWIS systems nearest Navajo Mountain Community Boarding School BIA on cumulative violation count (6) and EPA-reported population served (163). Violation-count peers include CHEROKEE WATER SYSTEM, LAME DEER WATER SYSTEM, FOUR BEARS WATER SYSTEM.
Similar violation count
Nearest cross-state community systems (500+ served) by SDWIS violations on record.
Nearby Water Systems
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About This Data
Navajo Mountain Community Boarding School BIA (NN4933011) is drawn from EPA SDWIS. Nearby county systems in this extract include FLAGSTAFF CITY OF; GRAND CANYON NATIONAL PARK; DONEY PARK WATER; PAGE CITY OF. Health-based rows (6 MCL/TT) are historical registry state, not a current drinkability score.
Source: U.S. Environmental Protection Agency, SDWIS Federal Reporting Services
Read our methodology - how this data is sourced, computed, and verified.