BIG TIMBER CITY OF
PWS ID: MT0000463 · BIG TIMBER, Montana 59011
Population Served
1,650
Total Violations
108
Health-Based Violations
9
Water Source
Surface Water
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 972
- County
- Sweet Grass
- School/Daycare
- No
- MCL Violations
- 0
- Monitoring Violations
- 95
- Treatment Tech Violations
- 9
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Lead and Copper Rule | MR | 6 | 2003 |
| Nitrate-Nitrite | MR | 6 | 2005 |
| Surface Water Treatment Rule | TT | 6 | 2014 |
| Consumer Confidence Rule | Other | 4 | 2013 |
| Arsenic | MR | 3 | 1999 |
| Endrin | MR | 3 | 2002 |
| Toxaphene | MR | 3 | 2002 |
| Dalapon | MR | 3 | 2002 |
| Di(2-ethylhexyl) adipate | MR | 3 | 2002 |
| Simazine | MR | 3 | 2002 |
| Picloram | MR | 3 | 2002 |
| Hexachlorocyclopentadiene | MR | 3 | 2002 |
| Aldicarb sulfoxide | MR | 3 | 2002 |
| Aldicarb sulfone | MR | 3 | 2002 |
| LASSO | MR | 3 | 2002 |
| Heptachlor epoxide | MR | 3 | 2002 |
| 2,4-D | MR | 3 | 2002 |
| 2,4,5-TP | MR | 3 | 2002 |
| HEXACHLOROBENZENE | MR | 3 | 2002 |
| Chlordane | MR | 3 | 2002 |
| Lead and Copper Rule | TT | 3 | 2009 |
| BHC-GAMMA | MR | 3 | 2002 |
| Di(2-ethylhexyl) phthalate | MR | 3 | 2002 |
| Benzo(a)pyrene | MR | 3 | 2002 |
| Aldicarb | MR | 3 | 2002 |
| OXAMYL | MR | 3 | 2002 |
| Carbofuran | MR | 3 | 2002 |
| Methoxychlor | MR | 3 | 2002 |
| Atrazine | MR | 3 | 2002 |
| Heptachlor | MR | 3 | 2002 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.