CENTERVILLE SCHOOL
PWS ID: MT0000771 · SAND COULEE, Montana 59472
Population Served
292
Total Violations
140
Health-Based Violations
53
Water Source
Groundwater
System Details
- System Type
- Non-Transient Non-Community
- Owner Type
- State
- Connections
- 1
- County
- Cascade
- School/Daycare
- Yes
- MCL Violations
- 34
- Monitoring Violations
- 87
- Treatment Tech Violations
- 19
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MCL | 34 | 2008 |
| Groundwater Rule | MR | 22 | 2022 |
| Groundwater Rule | TT | 19 | 2023 |
| Lead and Copper Rule | MR | 14 | 2024 |
| Coliform (TCR) | MR | 8 | 1994 |
| Nitrate-Nitrite | MR | 6 | 2014 |
| Revised Total Coliform Rule | MON | 4 | 2017 |
| Barium | MR | 3 | 2002 |
| Chromium | MR | 3 | 2002 |
| Fluoride | MR | 3 | 2002 |
| Mercury | MR | 3 | 2002 |
| Nickel | MR | 3 | 2002 |
| Antimony, Total | MR | 3 | 2002 |
| Selenium | MR | 3 | 2002 |
| Chlorine | MR | 3 | 2012 |
| Cadmium | MR | 3 | 2002 |
| Thallium, Total | MR | 3 | 2002 |
| Beryllium, Total | MR | 3 | 2002 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.