JIM DARCY SCHOOL DISTRICT NO 1
PWS ID: MT0001451 · HELENA, Montana 59601
Population Served
575
Total Violations
183
Health-Based Violations
0
Water Source
Groundwater
System Details
- System Type
- Non-Transient Non-Community
- Owner Type
- Local
- Connections
- 2
- County
- Lewis and Clark
- School/Daycare
- Yes
- MCL Violations
- 0
- Monitoring Violations
- 183
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Revised Total Coliform Rule | MON | 10 | 2019 |
| Lead and Copper Rule | MR | 9 | 2015 |
| Coliform (TCR) | MR | 8 | 2012 |
| Dalapon | MR | 6 | 2019 |
| Picloram | MR | 6 | 2019 |
| Dinoseb | MR | 6 | 2019 |
| 2,4-D | MR | 6 | 2019 |
| 2,4,5-TP | MR | 6 | 2019 |
| Pentachlorophenol | MR | 6 | 2019 |
| Nitrate-Nitrite | MR | 6 | 2025 |
| 1,2,4-Trichlorobenzene | MR | 3 | 1999 |
| Xylenes, Total | MR | 3 | 1999 |
| o-Dichlorobenzene | MR | 3 | 1999 |
| p-Dichlorobenzene | MR | 3 | 1999 |
| 1,1-Dichloroethylene | MR | 3 | 1999 |
| trans-1,2-Dichloroethylene | MR | 3 | 1999 |
| 1,2-Dichloroethane | MR | 3 | 1999 |
| 1,1,1-Trichloroethane | MR | 3 | 1999 |
| Carbon tetrachloride | MR | 3 | 1999 |
| Trichloroethylene | MR | 3 | 1999 |
| 1,1,2-Trichloroethane | MR | 3 | 1999 |
| Tetrachloroethylene | MR | 3 | 1999 |
| CHLOROBENZENE | MR | 3 | 1999 |
| Toluene | MR | 3 | 1999 |
| Ethylbenzene | MR | 3 | 1999 |
| Styrene | MR | 3 | 1999 |
| Endrin | MR | 3 | 2019 |
| Methoxychlor | MR | 3 | 2019 |
| Toxaphene | MR | 3 | 2019 |
| OXAMYL | MR | 3 | 2019 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.