Hopi High School - BIA
PWSID: 090400395 · Keams Canyon, AZ · Serves 1,150 people
Hopi High School - BIA has 22 health-based violations out of 22 total. Health violations indicate contaminant levels exceeded EPA limits or required treatment was not followed.
Hopi High School - BIA (PWSID 090400395) is a cws water system drawing from a groundwater source, regulated by the EPA Safe Drinking Water Information System (SDWIS) under the Safe Drinking Water Act. It serves approximately 1,150 people in Keams Canyon, AZ, and is subject to primacy enforcement by the Arizona drinking-water program.
The system's federal compliance record contains 22 total violations, with 22 classified as health-based (MCL exceedances or treatment-technique failures). 5 distinct contaminants have been cited, including Barium, Fluoride, Total Coliform (RTCR). Recorded violations span 2015–2025.
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)
- 090400395
- System Type
- CWS
- Water Source
- Groundwater
- Location
- Keams Canyon, AZ
- Population Served
- 1,150
- Health Violations
- Yes (22)
What contaminants are in this water system?
| Contaminant | Violations | Health-Based |
|---|---|---|
| Barium | 14 | 14 |
| Fluoride | 4 | 4 |
| Total Coliform (RTCR) | 2 | 2 |
| Manganese | 1 | 1 |
| Gross Alpha | 1 | 1 |
Violation History (22)
| Contaminant | Health | Date |
|---|---|---|
| Manganese | Yes | Jul 1, 2025 |
| Barium | Yes | Jan 1, 2025 |
| Gross Alpha | Yes | Oct 17, 2024 |
| Barium | Yes | Jul 1, 2023 |
| Barium | Yes | Jul 1, 2023 |
| Barium | Yes | Jul 1, 2023 |
| Fluoride | Yes | Nov 14, 2018 |
| Fluoride | Yes | Nov 14, 2018 |
| Fluoride | Yes | Nov 14, 2018 |
| Fluoride | Yes | Nov 14, 2018 |
| Barium | Yes | Jan 1, 2017 |
| Barium | Yes | Jan 1, 2017 |
| Barium | Yes | Oct 1, 2016 |
| Barium | Yes | Oct 1, 2016 |
| Barium | Yes | Jul 1, 2016 |
| Barium | Yes | Jul 1, 2016 |
| Barium | Yes | Apr 1, 2016 |
| Barium | Yes | Apr 1, 2016 |
| Barium | Yes | Jan 1, 2016 |
| Barium | Yes | Jan 1, 2016 |
| Total Coliform (RTCR) | Yes | Jul 1, 2015 |
| Total Coliform (RTCR) | Yes | Jul 1, 2015 |
Frequently Asked Questions
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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.