BIG SKY DRINKING WATER INC
Montana — Community Water System — PWSID: MT0003371
System Information
| PWSID | MT0003371 |
| System Name | BIG SKY DRINKING WATER INC |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Non-Inventory |
| Owner Type | Private |
| EPA Region | 08 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Dec 28, 1988 |
| Last Reported | Mar 26, 2026 |
Location & Contact
| State | Montana |
| City | CORVALLIS |
| ZIP Code | 59828 |
| Address | BOX 490 |
| Organization | — |
| Phone | 406-961-4450 |
Population & Service
| Population Served | 3,025 |
| Service Connections | 3 |
Drinking Water Violations (146)
This water system has 146 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jan 1, 2004 | Dec 31, 2004 | MR | No | Yes | — | — | — | Resolved | Mar 3, 2004 | — | |
| Jan 1, 2004 | Jan 31, 2004 | MR | No | No | — | 5% of samples | — | Resolved | Jan 31, 2004 | — | |
| Jan 1, 2004 | Jan 31, 2004 | MR | No | No | — | 5% of samples | — | Resolved | Jan 31, 2004 | — | |
| Jan 1, 2004 | Jan 31, 2004 | MR | No | No | — | 5% of samples | — | Resolved | Jan 31, 2004 | — | |
| Oct 1, 2003 | — | MR | No | No | — | TT | — | Archived | Mar 3, 2004 | — | |
| Oct 1, 2003 | — | MR | No | No | — | TT | — | Archived | Mar 3, 2004 | — | |
| Jul 1, 2003 | — | Other | No | No | — | — | — | Resolved | Dec 10, 2003 | — | |
| Jul 1, 2003 | — | Other | No | No | — | — | — | Resolved | Dec 10, 2003 | — | |
| Oct 1, 2002 | Oct 31, 2002 | MR | No | No | — | 5% of samples | — | Resolved | Oct 31, 2002 | — | |
| Oct 1, 2002 | Oct 31, 2002 | MR | No | No | — | 5% of samples | — | Resolved | Oct 31, 2002 | — | |
| Oct 1, 2002 | Oct 31, 2002 | MR | No | No | — | 5% of samples | — | Resolved | Oct 31, 2002 | — | |
| Sep 1, 2002 | Sep 30, 2002 | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2002 | — | |
| Sep 1, 2002 | Sep 30, 2002 | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2002 | — | |
| Sep 1, 2002 | Sep 30, 2002 | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2002 | — | |
| Jun 1, 2002 | Jun 30, 2002 | MR | No | No | — | 5% of samples | — | Resolved | Jun 30, 2002 | — | |
| Jun 1, 2002 | Jun 30, 2002 | MR | No | No | — | 5% of samples | — | Resolved | Jun 30, 2002 | — | |
| Jun 1, 2002 | Jun 30, 2002 | MR | No | No | — | 5% of samples | — | Resolved | Jun 30, 2002 | — | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | — | 0.2 mg/L | — | Resolved | Mar 3, 2004 | — | |
| Jan 1, 2002 | Dec 31, 2002 | MR | No | Yes | — | — | — | Resolved | Dec 31, 2002 | — | |
| Jan 1, 2002 | Dec 31, 2002 | MR | No | Yes | — | — | — | Resolved | Dec 31, 2002 | — | |
| Jan 1, 2002 | Dec 31, 2002 | MR | No | Yes | — | — | — | Resolved | Dec 31, 2002 | — | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | — | 0.05 mg/L | — | Resolved | Mar 3, 2004 | — | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | — | 0.5 mg/L | — | Resolved | Mar 3, 2004 | — | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | — | 0.007 mg/L | — | Resolved | Mar 3, 2004 | — | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Mar 3, 2004 | — | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | — | 0.004 mg/L | — | Resolved | Mar 3, 2004 | — | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | — | 0.006 mg/L | — | Resolved | Mar 3, 2004 | — | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | — | — | — | Resolved | Mar 3, 2004 | — | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | — | 0.001 mg/L | — | Resolved | Mar 3, 2004 | — | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | — | 0.07 mg/L | — | Resolved | Mar 3, 2004 | — | |
| Jan 1, 2002 | Dec 31, 2004 | MR | No | Yes | — | 0.010 mg/L | — | Resolved | Mar 3, 2004 | — | |
| Oct 1, 2001 | — | MR | No | No | — | TT | — | Archived | Mar 3, 2004 | — | |
| Aug 1, 1999 | Aug 31, 1999 | MR | No | No | — | 5% of samples | — | Archived | Aug 31, 1999 | — | |
| Jun 1, 1999 | Jun 30, 1999 | MR | No | No | — | 5% of samples | — | Archived | Jun 30, 1999 | — | |
| May 1, 1999 | May 31, 1999 | MR | No | No | — | 5% of samples | — | Archived | May 31, 1999 | — | |
| Apr 1, 1999 | Apr 30, 1999 | MR | No | No | — | 5% of samples | — | Archived | Apr 30, 1999 | — | |
| Apr 1, 1999 | Apr 30, 1999 | MR | No | No | — | 5% of samples | — | Archived | Apr 30, 1999 | — | |
| Jan 1, 1999 | Dec 31, 2001 | MR | No | Yes | — | 0.7 mg/L | — | Resolved | Dec 31, 2001 | — | |
| Jan 1, 1999 | Dec 31, 2001 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2001 | — | |
| Jan 1, 1999 | Dec 31, 2001 | MR | No | Yes | — | 0.1 mg/L | — | Resolved | Dec 31, 2001 | — | |
| Jan 1, 1999 | Dec 31, 2001 | MR | No | Yes | — | 0.004 mg/L | — | Resolved | Dec 31, 2001 | — | |
| Jan 1, 1999 | Dec 31, 2001 | MR | No | Yes | — | 0.004 mg/L | — | Resolved | Dec 31, 2001 | — | |
| Jan 1, 1999 | Dec 31, 2001 | MR | No | Yes | — | 0.004 mg/L | — | Resolved | Dec 31, 2001 | — | |
| Jan 1, 1999 | Dec 31, 1999 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 1999 | — | |
| Jan 1, 1999 | Dec 31, 2001 | MR | No | Yes | — | 0.2 mg/L | — | Resolved | Dec 31, 2001 | — | |
| Jan 1, 1999 | Dec 31, 2001 | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Dec 31, 2001 | — | |
| Jan 1, 1999 | Dec 31, 2001 | MR | No | Yes | — | 0.2 mg/L | — | Resolved | Dec 31, 2001 | — | |
| Jan 1, 1999 | Dec 31, 1999 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 1999 | — | |
| Jan 1, 1999 | Dec 31, 2001 | MR | No | Yes | — | 0.2 mg/L | — | Resolved | Dec 31, 2001 | — | |
| Jan 1, 1999 | Dec 31, 1999 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 1999 | — |
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.