ASH GROVE CEMENT COMPANY
PWS ID: MT0001396 · CLANCY, Montana 59634
Population Served
75
Total Violations
360
Health-Based Violations
40
Water Source
Groundwater
System Details
- System Type
- Non-Transient Non-Community
- Owner Type
- Private
- Connections
- 4
- County
- Jefferson
- School/Daycare
- No
- MCL Violations
- 40
- Monitoring Violations
- 319
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 35 | 2012 |
| Coliform (TCR) | MCL | 33 | 2014 |
| Barium | MR | 10 | 2002 |
| Cadmium | MR | 10 | 2002 |
| Chromium | MR | 10 | 2002 |
| Mercury | MR | 10 | 2002 |
| Nickel | MR | 10 | 2002 |
| Beryllium, Total | MR | 10 | 2002 |
| Thallium, Total | MR | 10 | 2002 |
| Selenium | MR | 10 | 2002 |
| Antimony, Total | MR | 10 | 2002 |
| Fluoride | MR | 10 | 2002 |
| Lead and Copper Rule | MR | 8 | 2010 |
| Picloram | MR | 7 | 2017 |
| Arsenic | MR | 4 | 2017 |
| Revised Total Coliform Rule | MCL | 4 | 2019 |
| Nitrate-Nitrite | MR | 4 | 2004 |
| 1,2,4-Trichlorobenzene | MR | 3 | 1999 |
| cis-1,2-Dichloroethylene | MR | 3 | 1999 |
| Xylenes, Total | MR | 3 | 1999 |
| DICHLOROMETHANE | MR | 3 | 1999 |
| o-Dichlorobenzene | MR | 3 | 1999 |
| p-Dichlorobenzene | MR | 3 | 1999 |
| Vinyl chloride | MR | 3 | 1999 |
| Carbon tetrachloride | MR | 3 | 1999 |
| Tetrachloroethylene | MR | 3 | 1999 |
| CHLOROBENZENE | MR | 3 | 1999 |
| Benzene | MR | 3 | 1999 |
| Ethylbenzene | MR | 3 | 1999 |
| Styrene | MR | 3 | 1999 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.