ASSINIBOINE & SIOUX RURAL WATER SYSTEM
Montana — Community Water System — PWSID: 083090050
System Information
| PWSID | 083090050 |
| System Name | ASSINIBOINE & SIOUX RURAL WATER SYSTEM |
| System Type | Community Water System |
| Water Source | Surface Water |
| Activity Status | Active |
| Owner Type | Federal |
| EPA Region | 08 |
| Serves School | No |
| Wholesaler | Yes |
| First Reported | Nov 14, 2011 |
| Last Reported | Nov 17, 2025 |
Location & Contact
| State | Montana |
| City | POPLAR |
| ZIP Code | 59255 |
| Address | P.O. Box 10 |
| Organization | WEEKS, ASHLEIGH |
| Phone | 406-768-5719 |
Population & Service
| Population Served | 1,726 |
| Service Connections | 245 |
Drinking Water Violations (4)
This water system has 4 violations recorded in the EPA SDWIS database.
| Begin Date | End Date | Contaminant | Category | Health-Based | Major | Measured | Federal MCL | State MCL | Status | Return to Compliance | Rule |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Apr 1, 2025 | Jun 30, 2025 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Jun 30, 2025 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Apr 1, 2025 | Jun 30, 2025 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Jun 30, 2025 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2018 | Jan 31, 2018 | Revised Total Coliform Rule | MON | No | No | — | — | — | Resolved | Jan 31, 2018 | Revised Total Coliform Rule |
| Oct 1, 2014 | Dec 31, 2014 | CARBON, TOTAL | TT | Yes | No | .8 RATIO | TT | — | Resolved | Dec 31, 2014 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
About This Water System
Public water system data comes from the EPA Safe Drinking Water Information System (SDWIS). Systems with violations must notify customers. Contact your water utility for the latest annual water quality report.