DIRTY OSCAR'S ANNEX
Montana - Transient Non-Community - PWSID: MT0003690
System Information
| PWSID | MT0003690 |
| System Name | DIRTY OSCAR'S ANNEX |
| 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 | Nov 3, 1993 |
| Last Reported | Mar 26, 2026 |
Location & Contact
| State | Montana |
| City | ROUNDUP |
| ZIP Code | 59072 |
| Address | PO BOX 481 |
| Organization | BARTH, RACHEL |
| Phone | 406-323-8388 |
Population & Service
| Population Served | 25 |
| Service Connections | 1 |
Drinking Water Violations (520)
This water system has 520 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Sep 1, 2017 | Sep 30, 2017 | MON | No | Yes | - | - | - | Resolved | Sep 30, 2017 | - | |
| Sep 1, 2017 | Sep 30, 2017 | MON | No | Yes | - | - | - | Resolved | Sep 30, 2017 | - | |
| Sep 1, 2017 | Sep 30, 2017 | MON | No | Yes | - | - | - | Resolved | Sep 30, 2017 | - | |
| Sep 1, 2017 | Sep 30, 2017 | MON | No | Yes | - | - | - | Resolved | Sep 30, 2017 | - | |
| Aug 1, 2016 | Aug 31, 2016 | MON | No | Yes | - | - | - | Resolved | Aug 31, 2016 | - | |
| Aug 1, 2016 | Aug 31, 2016 | MON | No | Yes | - | - | - | Resolved | Aug 31, 2016 | - | |
| Aug 1, 2016 | Aug 31, 2016 | MON | No | Yes | - | - | - | Resolved | Aug 31, 2016 | - | |
| Aug 1, 2016 | Aug 31, 2016 | MON | No | Yes | - | - | - | Resolved | Aug 31, 2016 | - | |
| Jun 26, 2016 | - | TT | Yes | No | - | - | - | Resolved | Jul 15, 2016 | - | |
| Jun 26, 2016 | - | TT | Yes | No | - | - | - | Resolved | Jul 15, 2016 | - | |
| Jun 26, 2016 | - | TT | Yes | No | - | - | - | Resolved | Jul 15, 2016 | - | |
| Jun 26, 2016 | - | TT | Yes | No | - | - | - | Resolved | Jul 15, 2016 | - | |
| Jun 3, 2016 | - | MR | No | Yes | - | - | - | Resolved | Jun 9, 2016 | - | |
| Jun 3, 2016 | - | MR | No | Yes | - | - | - | Resolved | Jun 9, 2016 | - | |
| Jun 3, 2016 | - | MR | No | Yes | - | - | - | Resolved | Jun 9, 2016 | - | |
| Apr 1, 2016 | Apr 30, 2016 | MON | No | Yes | - | - | - | Resolved | Apr 30, 2016 | - | |
| Apr 1, 2016 | Apr 30, 2016 | MON | No | Yes | - | - | - | Resolved | Apr 30, 2016 | - | |
| Apr 1, 2016 | Apr 30, 2016 | MON | No | Yes | - | - | - | Resolved | Apr 30, 2016 | - | |
| Apr 1, 2016 | Apr 30, 2016 | MON | No | Yes | - | - | - | Resolved | Apr 30, 2016 | - | |
| Mar 1, 2016 | Mar 31, 2016 | MR | No | No | - | 5% of samples | - | Resolved | Mar 31, 2016 | - | |
| Mar 1, 2016 | Mar 31, 2016 | MR | No | No | - | 5% of samples | - | Resolved | Mar 31, 2016 | - | |
| Mar 1, 2016 | Mar 31, 2016 | MR | No | No | - | 5% of samples | - | Resolved | Mar 31, 2016 | - | |
| Mar 1, 2016 | Mar 31, 2016 | MR | No | No | - | 5% of samples | - | Resolved | Mar 31, 2016 | - | |
| Nov 1, 2015 | Nov 30, 2015 | MR | No | No | - | 5% of samples | - | Resolved | Nov 30, 2015 | - | |
| Nov 1, 2015 | Nov 30, 2015 | MR | No | No | - | 5% of samples | - | Resolved | Nov 30, 2015 | - | |
| Nov 1, 2015 | Nov 30, 2015 | MR | No | No | - | 5% of samples | - | Resolved | Nov 30, 2015 | - | |
| Sep 1, 2015 | Sep 30, 2015 | MR | No | No | - | 5% of samples | - | Resolved | Sep 30, 2015 | - | |
| Sep 1, 2015 | Sep 30, 2015 | MR | No | No | - | 5% of samples | - | Resolved | Sep 30, 2015 | - | |
| Sep 1, 2015 | Sep 30, 2015 | MR | No | No | - | 5% of samples | - | Resolved | Sep 30, 2015 | - | |
| Apr 1, 2015 | Apr 30, 2015 | MR | No | No | - | 5% of samples | - | Resolved | Apr 30, 2015 | - | |
| Apr 1, 2015 | Apr 30, 2015 | MR | No | No | - | 5% of samples | - | Resolved | Apr 30, 2015 | - | |
| Apr 1, 2015 | Apr 30, 2015 | MR | No | No | - | 5% of samples | - | Resolved | Apr 30, 2015 | - | |
| Nov 1, 2014 | Nov 30, 2014 | MR | No | No | - | 5% of samples | - | Resolved | Nov 30, 2014 | - | |
| Nov 1, 2014 | Nov 30, 2014 | MR | No | No | - | 5% of samples | - | Resolved | Nov 30, 2014 | - | |
| Nov 1, 2014 | Nov 30, 2014 | MR | No | No | - | 5% of samples | - | Resolved | Nov 30, 2014 | - | |
| Apr 1, 2014 | Apr 30, 2014 | MR | No | No | - | 5% of samples | - | Resolved | Apr 30, 2014 | - | |
| Apr 1, 2014 | Apr 30, 2014 | MR | No | No | - | 5% of samples | - | Resolved | Apr 30, 2014 | - | |
| Apr 1, 2014 | Apr 30, 2014 | MR | No | No | - | 5% of samples | - | Resolved | Apr 30, 2014 | - | |
| Jan 1, 2014 | Dec 31, 2014 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2014 | - | |
| Jan 1, 2014 | Dec 31, 2014 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2014 | - | |
| Jan 1, 2014 | Dec 31, 2014 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2014 | - | |
| Jul 1, 2013 | Jul 31, 2013 | MR | No | No | - | 5% of samples | - | Resolved | Jul 31, 2013 | - | |
| Jul 1, 2013 | Jul 31, 2013 | MR | No | No | - | 5% of samples | - | Resolved | Jul 31, 2013 | - | |
| Jul 1, 2013 | Jul 31, 2013 | MR | No | No | - | 5% of samples | - | Resolved | Jul 31, 2013 | - | |
| May 1, 2013 | May 31, 2013 | MR | No | No | - | 5% of samples | - | Resolved | May 31, 2013 | - | |
| May 1, 2013 | May 31, 2013 | MR | No | No | - | 5% of samples | - | Resolved | May 31, 2013 | - | |
| May 1, 2013 | May 31, 2013 | MR | No | No | - | 5% of samples | - | Resolved | May 31, 2013 | - | |
| Nov 1, 2012 | Nov 30, 2012 | MR | No | No | - | 5% of samples | - | Resolved | Nov 30, 2012 | - | |
| Nov 1, 2012 | Nov 30, 2012 | MR | No | No | - | 5% of samples | - | Resolved | Nov 30, 2012 | - | |
| Nov 1, 2012 | Nov 30, 2012 | MR | No | No | - | 5% of samples | - | Resolved | Nov 30, 2012 | - |
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.