Mexican Water NTUA
PWSID: NN4903072 · Ft Defiance, AZ · Serves 294 people
According to EPA Safe Drinking Water Information System (SDWIS), Mexican Water NTUA (PWSID NN4903072) in Ft Defiance, AZ is listed as a CWS water system covering about 294 people. The same extract lists 44 health-based violation records spanning 2015-2024. Those 44 health-based rows for Mexican Water NTUA cover contaminants such as Arsenic; they remain historical EPA registry entries, not a current compliance or drinkability score.
Mexican Water NTUA has 44 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 Arsenic. Recorded violations span 2015–2024. 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)
- NN4903072
- System Type
- CWS
- Water Source
- Surface Water
- Location
- Ft Defiance, AZ
- Population Served
- 294
- Health Violations
- Yes (44)
What contaminants are in this water system?
| Contaminant | Violations | Health-Based |
|---|---|---|
| Arsenic | 44 | 44 |
Violation History (44)
| Contaminant | Health | Date |
|---|---|---|
| Arsenic | Yes | Apr 1, 2024 |
| Arsenic | Yes | Apr 1, 2024 |
| Arsenic | Yes | Apr 1, 2024 |
| Arsenic | Yes | Apr 1, 2024 |
| Arsenic | Yes | Jan 1, 2024 |
| Arsenic | Yes | Jan 1, 2024 |
| Arsenic | Yes | Jan 1, 2024 |
| Arsenic | Yes | Oct 1, 2023 |
| Arsenic | Yes | Oct 1, 2023 |
| Arsenic | Yes | Oct 1, 2023 |
| Arsenic | Yes | Oct 1, 2023 |
| Arsenic | Yes | Jul 1, 2023 |
| Arsenic | Yes | Jul 1, 2023 |
| Arsenic | Yes | Jul 1, 2023 |
| Arsenic | Yes | Jul 1, 2023 |
| Arsenic | Yes | Jul 1, 2022 |
| Arsenic | Yes | Jul 1, 2022 |
| Arsenic | Yes | Jul 1, 2022 |
| Arsenic | Yes | Jul 1, 2022 |
| Arsenic | Yes | Apr 1, 2022 |
| Arsenic | Yes | Apr 1, 2022 |
| Arsenic | Yes | Apr 1, 2022 |
| Arsenic | Yes | Apr 1, 2022 |
| Arsenic | Yes | Jan 1, 2022 |
| Arsenic | Yes | Jan 1, 2022 |
| Arsenic | Yes | Jan 1, 2022 |
| Arsenic | Yes | Oct 1, 2021 |
| Arsenic | Yes | Oct 1, 2021 |
| Arsenic | Yes | Oct 1, 2021 |
| Arsenic | Yes | Jul 1, 2019 |
| Arsenic | Yes | Jul 1, 2019 |
| Arsenic | Yes | Jul 1, 2019 |
| Arsenic | Yes | Jul 1, 2016 |
| Arsenic | Yes | Jul 1, 2016 |
| Arsenic | Yes | Jul 1, 2016 |
| Arsenic | Yes | Apr 1, 2016 |
| Arsenic | Yes | Apr 1, 2016 |
| Arsenic | Yes | Apr 1, 2016 |
| Arsenic | Yes | Jan 1, 2016 |
| Arsenic | Yes | Jan 1, 2016 |
| Arsenic | Yes | Jan 1, 2016 |
| Arsenic | Yes | Oct 1, 2015 |
| Arsenic | Yes | Oct 1, 2015 |
| Arsenic | Yes | Oct 1, 2015 |
Frequently Asked Questions
What does EPA SDWIS list for Mexican Water NTUA?
How many people does Mexican Water NTUA serve?
What violations does Mexican Water NTUA have?
What contaminants have been found in Mexican Water NTUA water?
Compare beyond Arizona
Nationwide peers by violations & population served
Cross-state SDWIS systems nearest Mexican Water NTUA on cumulative violation count (44) and EPA-reported population served (294). Violation-count peers include WASHINGTON WATER AUTHORITY WWA, CHICOT JUNCTION WATER ASSOC, LITTLE RIVER CO RDA.
Similar violation count
Nearest cross-state community systems (500+ served) by SDWIS violations on record.
Nearby Water Systems
Explore More
About This Data
Mexican Water NTUA (NN4903072) is drawn from EPA SDWIS. Nearby county systems in this extract include Farmington Rural-Shiprock-Beclabito NTUA; Fort Defiance-Window Rock-St Michaels NTUA; Chinle-Many Farms-Del Muerto NTUA; Tuba City NTUA. Health-based rows (44 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.