ROCKY BOY AGENCY WATER SYSTEM
PWS ID: 083090079 · BOX ELDER, 08 59521
Population Served
1,442
Total Violations
109
Health-Based Violations
15
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Native American
- Connections
- 150
- School/Daycare
- Yes
- MCL Violations
- 14
- Monitoring Violations
- 86
- Treatment Tech Violations
- 1
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 28 | 2009 |
| Coliform (TCR) | MCL | 14 | 2005 |
| Groundwater Rule | Other | 5 | 2012 |
| Asbestos | MR | 3 | 2023 |
| Consumer Confidence Rule | Other | 2 | 2014 |
| Xylenes, Total | MR | 2 | 2020 |
| Toluene | MR | 2 | 2020 |
| 1,2,4-Trichlorobenzene | MR | 1 | 2014 |
| p-Dichlorobenzene | MR | 1 | 2014 |
| Vinyl chloride | MR | 1 | 2014 |
| 1,2-Dichloroethane | MR | 1 | 2014 |
| 1,2-Dichloropropane | MR | 1 | 2014 |
| Benzene | MR | 1 | 2014 |
| Styrene | MR | 1 | 2014 |
| Endrin | MR | 1 | 2014 |
| BHC-GAMMA | MR | 1 | 2014 |
| Methoxychlor | MR | 1 | 2014 |
| Toxaphene | MR | 1 | 2014 |
| Diquat | MR | 1 | 2014 |
| Endothall | MR | 1 | 2014 |
| Di(2-ethylhexyl) adipate | MR | 1 | 2014 |
| OXAMYL | MR | 1 | 2014 |
| Simazine | MR | 1 | 2014 |
| Hexachlorocyclopentadiene | MR | 1 | 2014 |
| Carbofuran | MR | 1 | 2014 |
| Atrazine | MR | 1 | 2014 |
| 2,3,7,8-TCDD | MR | 1 | 2014 |
| Heptachlor | MR | 1 | 2014 |
| 2,4-D | MR | 1 | 2014 |
| 2,4,5-TP | MR | 1 | 2014 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.