Mexican Water NTUA
PWSID: NN4903072 · Ft Defiance, AZ · Serves 294 people
Mexican Water NTUA has 44 health-based violations out of 44 total. Health violations indicate contaminant levels exceeded EPA limits or required treatment was not followed.
Mexican Water NTUA (PWSID NN4903072) is a cws water system drawing from a surface water source, regulated by the EPA Safe Drinking Water Information System (SDWIS) under the Safe Drinking Water Act. It serves approximately 294 people in Ft Defiance, AZ, and is subject to primacy enforcement by the Arizona drinking-water program.
The system's federal compliance record contains 44 total violations, with 44 classified as health-based (MCL exceedances or treatment-technique failures). 1 distinct contaminant has been cited, including Barium. Recorded violations span 2015–2024.
A historical violation does not necessarily describe current water quality, systems must notify customers and remediate, and monitoring-type violations often reflect reporting lapses rather than contamination. The most authoritative real-time 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 |
|---|---|---|
| Barium | 44 | 44 |
Violation History (44)
| Contaminant | Health | Date |
|---|---|---|
| Barium | Yes | Apr 1, 2024 |
| Barium | Yes | Apr 1, 2024 |
| Barium | Yes | Apr 1, 2024 |
| Barium | Yes | Apr 1, 2024 |
| Barium | Yes | Jan 1, 2024 |
| Barium | Yes | Jan 1, 2024 |
| Barium | Yes | Jan 1, 2024 |
| Barium | Yes | Oct 1, 2023 |
| Barium | Yes | Oct 1, 2023 |
| Barium | Yes | Oct 1, 2023 |
| Barium | Yes | Oct 1, 2023 |
| Barium | Yes | Jul 1, 2023 |
| Barium | Yes | Jul 1, 2023 |
| Barium | Yes | Jul 1, 2023 |
| Barium | Yes | Jul 1, 2023 |
| Barium | Yes | Jul 1, 2022 |
| Barium | Yes | Jul 1, 2022 |
| Barium | Yes | Jul 1, 2022 |
| Barium | Yes | Jul 1, 2022 |
| Barium | Yes | Apr 1, 2022 |
| Barium | Yes | Apr 1, 2022 |
| Barium | Yes | Apr 1, 2022 |
| Barium | Yes | Apr 1, 2022 |
| Barium | Yes | Jan 1, 2022 |
| Barium | Yes | Jan 1, 2022 |
| Barium | Yes | Jan 1, 2022 |
| Barium | Yes | Oct 1, 2021 |
| Barium | Yes | Oct 1, 2021 |
| Barium | Yes | Oct 1, 2021 |
| Barium | Yes | Jul 1, 2019 |
| Barium | Yes | Jul 1, 2019 |
| Barium | Yes | Jul 1, 2019 |
| Barium | Yes | Jul 1, 2016 |
| Barium | Yes | Jul 1, 2016 |
| Barium | Yes | Jul 1, 2016 |
| Barium | Yes | Apr 1, 2016 |
| Barium | Yes | Apr 1, 2016 |
| Barium | Yes | Apr 1, 2016 |
| Barium | Yes | Jan 1, 2016 |
| Barium | Yes | Jan 1, 2016 |
| Barium | Yes | Jan 1, 2016 |
| Barium | Yes | Oct 1, 2015 |
| Barium | Yes | Oct 1, 2015 |
| Barium | Yes | Oct 1, 2015 |
Frequently Asked Questions
Is Mexican Water NTUA water safe to drink?
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?
Nearby Water Systems
Explore More
About This Data
Water system data is from the EPA Safe Drinking Water Information System (SDWIS). Health-based violations include Maximum Contaminant Level (MCL) and Treatment Technique (TT) violations that may pose a direct risk to public health. Violation records may span multiple years.
Source: U.S. Environmental Protection Agency, SDWIS Federal Reporting Services U.S. Environmental Protection Agency, SDWIS Federal Reporting Services
Read our methodology - how this data is sourced, computed, and verified.