LONGHORN BAR
Montana - Transient Non-Community - PWSID: MT0001659
System Information
| PWSID | MT0001659 |
| System Name | LONGHORN BAR |
| System Type | Transient Non-Community |
| Water Source | Surface Water Purchased |
| Activity Status | Active |
| Owner Type | Private |
| EPA Region | 08 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Mar 5, 1980 |
| Last Reported | Jun 29, 2026 |
Location & Contact
| State | Montana |
| City | ROSEBUD |
| ZIP Code | 59347 |
| Address | PO BOX 1 |
| Organization | BUCK, LANE |
| Phone | 406-351-2797 |
Population & Service
| Population Served | 75 |
| Service Connections | 1 |
Drinking Water Violations (131)
This water system has 131 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 2, 2016 | - | Other | No | No | - | - | - | Resolved | Jan 3, 2017 | - | |
| Apr 2, 2016 | - | Other | No | No | - | - | - | Resolved | Jan 3, 2017 | - | |
| Apr 2, 2016 | - | Other | No | No | - | - | - | Resolved | Jan 3, 2017 | - | |
| Oct 1, 2015 | Oct 31, 2015 | MR | No | No | - | 5% of samples | - | Resolved | Oct 31, 2015 | - | |
| Oct 1, 2015 | Oct 31, 2015 | MR | No | No | - | 5% of samples | - | Resolved | Oct 31, 2015 | - | |
| Oct 1, 2015 | Oct 31, 2015 | MR | No | No | - | 5% of samples | - | Resolved | Oct 31, 2015 | - | |
| Sep 1, 2014 | Sep 30, 2014 | MR | No | No | - | 5% of samples | - | Resolved | Sep 30, 2014 | - | |
| Sep 1, 2014 | Sep 30, 2014 | MR | No | No | - | 5% of samples | - | Resolved | Sep 30, 2014 | - | |
| Sep 1, 2014 | Sep 30, 2014 | MR | No | No | - | 5% of samples | - | Resolved | Sep 30, 2014 | - | |
| Apr 1, 2013 | Apr 30, 2013 | MR | No | No | - | 5% of samples | - | Resolved | Apr 30, 2013 | - | |
| Apr 1, 2013 | Apr 30, 2013 | MR | No | No | - | 5% of samples | - | Resolved | Apr 30, 2013 | - | |
| Apr 1, 2013 | Apr 30, 2013 | MR | No | No | - | 5% of samples | - | Resolved | Apr 30, 2013 | - | |
| Apr 1, 2013 | Apr 30, 2013 | MR | No | No | - | 5% of samples | - | Resolved | Apr 30, 2013 | - | |
| Jan 1, 2010 | Jan 31, 2010 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jan 31, 2010 | - | |
| Jan 1, 2010 | Jan 31, 2010 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jan 31, 2010 | - | |
| Jan 1, 2010 | Jan 31, 2010 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jan 31, 2010 | - | |
| Jan 1, 2010 | Jan 31, 2010 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jan 31, 2010 | - | |
| Jan 1, 2010 | Jan 31, 2010 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jan 31, 2010 | - | |
| Jan 1, 2010 | Jan 31, 2010 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jan 31, 2010 | - | |
| Aug 1, 2009 | Aug 31, 2009 | MR | No | No | - | 5% of samples | - | Resolved | Aug 31, 2009 | - | |
| Aug 1, 2009 | Aug 31, 2009 | MR | No | No | - | 5% of samples | - | Resolved | Aug 31, 2009 | - | |
| Aug 1, 2009 | Aug 31, 2009 | MR | No | No | - | 5% of samples | - | Resolved | Aug 31, 2009 | - | |
| Jan 1, 2009 | Mar 31, 2009 | MCL | Yes | No | 11 MG/L | - | - | Resolved | Mar 31, 2009 | - | |
| Jan 1, 2009 | Mar 31, 2009 | MCL | Yes | No | 11 MG/L | - | - | Resolved | Mar 31, 2009 | - | |
| Jan 1, 2009 | Mar 31, 2009 | MCL | Yes | No | 11 MG/L | - | - | Resolved | Mar 31, 2009 | - | |
| Jan 1, 2009 | Mar 31, 2009 | MCL | Yes | No | 11 MG/L | - | - | Resolved | Mar 31, 2009 | - | |
| Jan 1, 2009 | Mar 31, 2009 | MCL | Yes | No | 11 MG/L | - | - | Resolved | Mar 31, 2009 | - | |
| Jul 1, 2008 | Sep 30, 2008 | MCL | Yes | No | 28.6 MG/L | - | - | Resolved | Sep 30, 2008 | - | |
| Jul 1, 2008 | Sep 30, 2008 | MCL | Yes | No | 28.6 MG/L | - | - | Resolved | Sep 30, 2008 | - | |
| Jul 1, 2008 | Sep 30, 2008 | MCL | Yes | No | 28.6 MG/L | - | - | Resolved | Sep 30, 2008 | - | |
| Jul 1, 2008 | Sep 30, 2008 | MCL | Yes | No | 28.6 MG/L | - | - | Resolved | Sep 30, 2008 | - | |
| Jul 1, 2008 | Sep 30, 2008 | MCL | Yes | No | 28.6 MG/L | - | - | Resolved | Sep 30, 2008 | - | |
| Jul 1, 2008 | Sep 30, 2008 | MCL | Yes | No | 28.6 MG/L | - | - | Resolved | Sep 30, 2008 | - | |
| Apr 1, 2008 | Jun 30, 2008 | MCL | Yes | No | 10.5 MG/L | - | - | Resolved | Jun 30, 2008 | - | |
| Apr 1, 2008 | Jun 30, 2008 | MCL | Yes | No | 10.5 MG/L | - | - | Resolved | Jun 30, 2008 | - | |
| Apr 1, 2008 | Jun 30, 2008 | MCL | Yes | No | 10.5 MG/L | - | - | Resolved | Jun 30, 2008 | - | |
| Apr 1, 2008 | Jun 30, 2008 | MCL | Yes | No | 10.5 MG/L | - | - | Resolved | Jun 30, 2008 | - | |
| Apr 1, 2008 | Jun 30, 2008 | MCL | Yes | No | 10.5 MG/L | - | - | Resolved | Jun 30, 2008 | - | |
| Jan 1, 2008 | Mar 31, 2008 | MCL | Yes | No | 23.5 MG/L | - | 10 | Resolved | Mar 31, 2008 | - | |
| Jan 1, 2008 | Mar 31, 2008 | MCL | Yes | No | 23.5 MG/L | - | 10 | Resolved | Mar 31, 2008 | - | |
| Jan 1, 2008 | Mar 31, 2008 | MCL | Yes | No | 23.5 MG/L | - | 10 | Resolved | Mar 31, 2008 | - | |
| Jan 1, 2008 | Mar 31, 2008 | MCL | Yes | No | 23.5 MG/L | - | 10 | Resolved | Mar 31, 2008 | - | |
| Jan 1, 2008 | Mar 31, 2008 | MCL | Yes | No | 23.5 MG/L | - | 10 | Resolved | Mar 31, 2008 | - | |
| Jan 1, 2008 | Mar 31, 2008 | MCL | Yes | No | 23.5 MG/L | - | 10 | Resolved | Mar 31, 2008 | - | |
| Jan 1, 2008 | Mar 31, 2008 | MCL | Yes | No | 23.5 MG/L | - | 10 | Resolved | Mar 31, 2008 | - | |
| Oct 1, 2007 | Dec 31, 2007 | MCL | Yes | No | 10.7 MG/L | - | - | Resolved | Dec 31, 2007 | - | |
| Oct 1, 2007 | Dec 31, 2007 | MCL | Yes | No | 10.7 MG/L | - | - | Resolved | Dec 31, 2007 | - | |
| Oct 1, 2007 | Dec 31, 2007 | MCL | Yes | No | 10.7 MG/L | - | - | Resolved | Dec 31, 2007 | - | |
| Oct 1, 2007 | Dec 31, 2007 | MCL | Yes | No | 10.7 MG/L | - | - | Resolved | Dec 31, 2007 | - | |
| Oct 1, 2007 | Dec 31, 2007 | MCL | Yes | No | 10.7 MG/L | - | - | Resolved | Dec 31, 2007 | - |
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.