SQUARE BUTTE WATER COMPANY
Montana - Transient Non-Community - PWSID: MT0000333
System Information
| PWSID | MT0000333 |
| System Name | SQUARE BUTTE WATER COMPANY |
| System Type | Transient Non-Community |
| Water Source | Ground Water |
| Activity Status | Non-Inventory |
| Owner Type | Private |
| EPA Region | 08 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Feb 13, 1979 |
| Last Reported | Mar 26, 2026 |
Location & Contact
| State | Montana |
| City | SQUARE BUTTE |
| ZIP Code | 59446 |
| Address | 544 SQUARE BUTTE RD |
| Organization | NACK, BLAIR |
| Phone | 406-737-4228 |
Population & Service
| Population Served | 21 |
| Service Connections | 8 |
Drinking Water Violations (48)
This water system has 48 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Oct 1, 2012 | Oct 31, 2012 | MR | No | No | - | 5% of samples | - | Resolved | Oct 31, 2012 | - | |
| Oct 1, 2012 | Oct 31, 2012 | MR | No | No | - | 5% of samples | - | Resolved | Oct 31, 2012 | - | |
| Oct 1, 2012 | Oct 31, 2012 | MR | No | No | - | 5% of samples | - | Resolved | Oct 31, 2012 | - | |
| Jan 1, 2011 | Dec 31, 2011 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2011 | - | |
| Jan 1, 2011 | Dec 31, 2011 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2011 | - | |
| Jan 1, 2011 | Dec 31, 2011 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2011 | - | |
| Jan 1, 2011 | Dec 31, 2011 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2011 | - | |
| Jan 1, 2009 | Dec 31, 2009 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2009 | - | |
| Jan 1, 2009 | Dec 31, 2009 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2009 | - | |
| Jan 1, 2009 | Dec 31, 2009 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2009 | - | |
| Jan 1, 2006 | Dec 31, 2006 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2006 | - | |
| Jan 1, 2006 | Dec 31, 2006 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2006 | - | |
| Jan 1, 2006 | Dec 31, 2006 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2006 | - | |
| Jan 1, 2004 | Dec 31, 2004 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2004 | - | |
| Jan 1, 2004 | Dec 31, 2004 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2004 | - | |
| Jan 1, 2004 | Dec 31, 2004 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2004 | - | |
| Sep 1, 2000 | Sep 30, 2000 | MR | No | No | - | 5% of samples | - | Resolved | Sep 30, 2000 | - | |
| Sep 1, 2000 | Sep 30, 2000 | MR | No | No | - | 5% of samples | - | Resolved | Sep 30, 2000 | - | |
| Sep 1, 2000 | Sep 30, 2000 | MR | No | No | - | 5% of samples | - | Resolved | Sep 30, 2000 | - | |
| Nov 1, 1999 | Nov 30, 1999 | MCL | Yes | No | - | 5% of samples | - | Resolved | Nov 30, 1999 | - | |
| Nov 1, 1999 | Nov 30, 1999 | MCL | Yes | No | - | 5% of samples | - | Resolved | Nov 30, 1999 | - | |
| Nov 1, 1999 | Nov 30, 1999 | MCL | Yes | No | - | 5% of samples | - | Resolved | Nov 30, 1999 | - | |
| Nov 1, 1999 | Nov 30, 1999 | MCL | Yes | No | - | 5% of samples | - | Resolved | Nov 30, 1999 | - | |
| Oct 1, 1996 | Oct 31, 1996 | MR | No | No | - | 5% of samples | - | Resolved | Oct 31, 1996 | - | |
| Oct 1, 1996 | Oct 31, 1996 | MR | No | No | - | 5% of samples | - | Resolved | Oct 31, 1996 | - | |
| Aug 1, 1996 | Aug 31, 1996 | MR | No | No | - | 5% of samples | - | Resolved | Aug 31, 1996 | - | |
| Jan 1, 1996 | - | MR | No | No | - | TT | - | Resolved | Dec 31, 2000 | - | |
| Nov 1, 1995 | Nov 30, 1995 | MR | No | No | - | 5% of samples | - | Resolved | Nov 30, 1995 | - | |
| Nov 1, 1995 | Nov 30, 1995 | MR | No | No | - | 5% of samples | - | Resolved | Nov 30, 1995 | - | |
| Jul 1, 1994 | Jul 31, 1994 | MR | No | No | - | 5% of samples | - | Resolved | Jul 31, 1994 | - | |
| May 1, 1994 | May 31, 1994 | MR | No | No | - | 5% of samples | - | Resolved | May 31, 1994 | - | |
| May 1, 1994 | May 31, 1994 | MR | No | No | - | 5% of samples | - | Resolved | May 31, 1994 | - | |
| Jul 1, 1993 | - | MR | No | No | - | TT | - | Resolved | Jan 14, 2013 | - | |
| Jul 1, 1993 | - | MR | No | No | - | TT | - | Resolved | Jan 14, 2013 | - | |
| Jul 1, 1993 | - | MR | No | No | - | TT | - | Resolved | Jan 14, 2013 | - | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 1993 | - | |
| Jul 1, 1992 | Jul 31, 1992 | MR | No | No | - | 5% of samples | - | Resolved | Jul 31, 1992 | - | |
| Jul 1, 1992 | Jul 31, 1992 | MR | No | No | - | 5% of samples | - | Resolved | Jul 31, 1992 | - | |
| Jun 1, 1992 | Jun 30, 1992 | MR | No | No | - | 5% of samples | - | Resolved | Jun 30, 1992 | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - |
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.