SUPERIOR TOWN OF
Montana — Community Water System — PWSID: MT0000339
System Information
| PWSID | MT0000339 |
| System Name | SUPERIOR TOWN OF |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 08 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Feb 13, 1979 |
| Last Reported | Jan 5, 2026 |
Location & Contact
| State | Montana |
| City | SUPERIOR |
| ZIP Code | 59872 |
| Address | PO BOX 729 |
| Organization | SCHNEIDER, BRENDA |
| Phone | 406-822-3594 |
Population & Service
| Population Served | 1,100 |
| Service Connections | 454 |
Drinking Water Violations (12)
This water system has 12 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jun 1, 2017 | Jun 30, 2017 | Groundwater Rule | MR | No | Yes | — | — | — | Resolved | Jun 30, 2017 | Ground Water Rule |
| Jun 1, 2017 | Jun 30, 2017 | Groundwater Rule | MR | No | Yes | — | — | — | Resolved | Jun 30, 2017 | Ground Water Rule |
| Jun 1, 2017 | Jun 30, 2017 | Groundwater Rule | MR | No | Yes | — | — | — | Resolved | Jun 30, 2017 | Ground Water Rule |
| Jun 1, 2017 | Jun 30, 2017 | Groundwater Rule | MR | No | Yes | — | — | — | Resolved | Jun 30, 2017 | Ground Water Rule |
| Jun 1, 1998 | Jun 30, 1998 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Jun 30, 1998 | Total Coliform Rule |
| Jan 1, 1997 | Dec 31, 1997 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 1997 | Nitrate Rule |
| Jan 1, 1997 | Dec 31, 1997 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 1997 | Nitrate Rule |
| Jan 1, 1996 | Dec 31, 1998 | Carbofuran | MR | No | Yes | — | 0.04 mg/L | — | Resolved | Dec 31, 1998 | Synthetic Organic Chemicals |
| Jan 1, 1996 | Dec 31, 1998 | Aldicarb sulfone | MR | No | Yes | — | — | — | Resolved | Dec 31, 1998 | Synthetic Organic Chemicals |
| Jan 1, 1996 | Dec 31, 1998 | Aldicarb sulfoxide | MR | No | Yes | — | — | — | Resolved | Dec 31, 1998 | Synthetic Organic Chemicals |
| Jan 1, 1996 | Dec 31, 1998 | Aldicarb | MR | No | Yes | — | — | — | Resolved | Dec 31, 1998 | Synthetic Organic Chemicals |
| Jan 1, 1996 | Dec 31, 1998 | OXAMYL | MR | No | Yes | — | 0.2 mg/L | — | Resolved | Dec 31, 1998 | Synthetic Organic Chemicals |
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.