BIG STONE COLONY INC
Montana — Community Water System — PWSID: MT0003077
System Information
| PWSID | MT0003077 |
| System Name | BIG STONE COLONY INC |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Private |
| EPA Region | 08 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Feb 7, 1986 |
| Last Reported | Jan 5, 2026 |
Location & Contact
| State | Montana |
| City | SAND COULEE |
| ZIP Code | 59472 |
| Address | PO BOX 70 |
| Organization | WURZ, ANDREW |
| Phone | 406-436-5545 |
Population & Service
| Population Served | 130 |
| Service Connections | 15 |
Drinking Water Violations (5)
This water system has 5 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| May 21, 2024 | — | E. COLI | MR | No | No | — | — | — | Resolved | Jun 12, 2024 | Ground Water Rule |
| May 21, 2024 | — | E. COLI | MR | No | No | — | — | — | Resolved | Jun 12, 2024 | Ground Water Rule |
| May 21, 2024 | — | E. COLI | MR | No | No | — | — | — | Resolved | Jun 12, 2024 | Ground Water Rule |
| May 21, 2024 | — | E. COLI | MR | No | No | — | — | — | Resolved | Jun 12, 2024 | Ground Water Rule |
| May 21, 2024 | — | E. COLI | MR | No | No | — | — | — | Resolved | Jun 12, 2024 | Ground Water 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.