SEVEN DAY WEEKEND
Montana - Transient Non-Community - PWSID: MT0001409
System Information
| PWSID | MT0001409 |
| System Name | SEVEN DAY WEEKEND |
| 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 | Mar 5, 1980 |
| Last Reported | Mar 26, 2026 |
Location & Contact
| State | Montana |
| City | HOBSON |
| ZIP Code | 59452 |
| Address | PO BOX 317 |
| Organization | HULL, HEATHER |
| Phone | 406-423-5482 |
Population & Service
| Population Served | 81 |
| Service Connections | 3 |
Drinking Water Violations (151)
This water system has 151 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, 2017 | Mar 31, 2017 | MON | No | Yes | - | - | - | Resolved | Mar 31, 2017 | - | |
| Jan 1, 2017 | Mar 31, 2017 | MR | No | Yes | - | - | - | Resolved | Mar 31, 2017 | - | |
| Jan 1, 2017 | Mar 31, 2017 | MR | No | Yes | - | - | - | Resolved | Mar 31, 2017 | - | |
| Jan 1, 2017 | Mar 31, 2017 | MON | No | Yes | - | - | - | Resolved | Mar 31, 2017 | - | |
| Jan 1, 2017 | Mar 31, 2017 | MR | No | Yes | - | - | - | Resolved | Mar 31, 2017 | - | |
| Jan 1, 2017 | Mar 31, 2017 | MON | No | Yes | - | - | - | Resolved | Mar 31, 2017 | - | |
| Oct 1, 2016 | Dec 31, 2016 | MON | No | Yes | - | - | - | Resolved | Dec 31, 2016 | - | |
| Oct 1, 2016 | Dec 31, 2016 | MON | No | Yes | - | - | - | Resolved | Dec 31, 2016 | - | |
| Oct 1, 2016 | Dec 31, 2016 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2016 | - | |
| Oct 1, 2016 | Dec 31, 2016 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2016 | - | |
| Oct 1, 2016 | Dec 31, 2016 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2016 | - | |
| Oct 1, 2016 | Dec 31, 2016 | MON | No | Yes | - | - | - | Resolved | Dec 31, 2016 | - | |
| Jul 1, 2016 | Sep 30, 2016 | MR | No | Yes | - | - | - | Resolved | Sep 30, 2016 | - | |
| Jul 1, 2016 | Sep 30, 2016 | MR | No | Yes | - | - | - | Resolved | Sep 30, 2016 | - | |
| Jul 1, 2016 | Sep 30, 2016 | MR | No | Yes | - | - | - | Resolved | Sep 30, 2016 | - | |
| Apr 2, 2016 | - | Other | No | No | - | - | - | Resolved | May 15, 2017 | - | |
| Apr 2, 2016 | - | Other | No | No | - | - | - | Resolved | May 15, 2017 | - | |
| Apr 2, 2016 | - | Other | No | No | - | - | - | Resolved | May 15, 2017 | - | |
| Apr 1, 2016 | Jun 30, 2016 | MR | No | Yes | - | - | - | Resolved | Jun 30, 2016 | - | |
| Apr 1, 2016 | Jun 30, 2016 | MR | No | Yes | - | - | - | Resolved | Jun 30, 2016 | - | |
| Apr 1, 2016 | Jun 30, 2016 | MR | No | Yes | - | - | - | Resolved | Jun 30, 2016 | - | |
| Oct 1, 2015 | Dec 31, 2015 | MR | No | No | - | 5% of samples | - | Resolved | Dec 31, 2015 | - | |
| Oct 1, 2015 | Dec 31, 2015 | MR | No | No | - | 5% of samples | - | Resolved | Dec 31, 2015 | - | |
| Oct 1, 2015 | Dec 31, 2015 | MR | No | No | - | 5% of samples | - | Resolved | Dec 31, 2015 | - | |
| Oct 1, 2009 | Dec 31, 2009 | MCL | Yes | No | 13.6 MG/L | - | - | Resolved | Dec 31, 2009 | - | |
| Oct 1, 2009 | Dec 31, 2009 | MCL | Yes | No | 13.6 MG/L | - | - | Resolved | Dec 31, 2009 | - | |
| Oct 1, 2009 | Dec 31, 2009 | MCL | Yes | No | 13.6 MG/L | - | - | Resolved | Dec 31, 2009 | - | |
| Oct 1, 2009 | Dec 31, 2009 | MCL | Yes | No | 13.6 MG/L | - | - | Resolved | Dec 31, 2009 | - | |
| Oct 1, 2009 | Dec 31, 2009 | MCL | Yes | No | 13.6 MG/L | - | - | Resolved | Dec 31, 2009 | - | |
| Oct 1, 2009 | Dec 31, 2009 | MCL | Yes | No | 13.6 MG/L | - | - | Resolved | Dec 31, 2009 | - | |
| Jul 1, 2009 | Sep 30, 2009 | MCL | Yes | No | 11.3 MG/L | - | - | Resolved | Sep 30, 2009 | - | |
| Jul 1, 2009 | Sep 30, 2009 | MCL | Yes | No | 11.3 MG/L | - | - | Resolved | Sep 30, 2009 | - | |
| Jul 1, 2009 | Sep 30, 2009 | MCL | Yes | No | 11.3 MG/L | - | - | Resolved | Sep 30, 2009 | - | |
| Jul 1, 2009 | Sep 30, 2009 | MCL | Yes | No | 11.3 MG/L | - | - | Resolved | Sep 30, 2009 | - | |
| Jul 1, 2009 | Sep 30, 2009 | MCL | Yes | No | 11.3 MG/L | - | - | Resolved | Sep 30, 2009 | - | |
| Jul 1, 2009 | Sep 30, 2009 | MCL | Yes | No | 11.3 MG/L | - | - | Resolved | Sep 30, 2009 | - | |
| Apr 1, 2008 | Jun 30, 2008 | MR | No | Yes | - | - | - | Resolved | Jun 30, 2008 | - | |
| Apr 1, 2008 | Jun 30, 2008 | MR | No | Yes | - | - | - | Resolved | Jun 30, 2008 | - | |
| Apr 1, 2008 | Jun 30, 2008 | MR | No | Yes | - | - | - | Resolved | Jun 30, 2008 | - | |
| Apr 1, 2008 | Jun 30, 2008 | MR | No | Yes | - | - | - | Resolved | Jun 30, 2008 | - | |
| Apr 1, 2008 | Jun 30, 2008 | MR | No | Yes | - | - | - | Resolved | Jun 30, 2008 | - | |
| Jan 1, 2008 | Mar 31, 2008 | MR | No | Yes | - | - | - | Resolved | Mar 31, 2008 | - | |
| Jan 1, 2008 | Mar 31, 2008 | MR | No | Yes | - | - | - | Resolved | Mar 31, 2008 | - | |
| Jan 1, 2008 | Mar 31, 2008 | MR | No | Yes | - | - | - | Resolved | Mar 31, 2008 | - | |
| Jan 1, 2008 | Mar 31, 2008 | MR | No | Yes | - | - | - | Resolved | Mar 31, 2008 | - | |
| Jan 1, 2008 | Mar 31, 2008 | MR | No | Yes | - | - | - | Resolved | Mar 31, 2008 | - | |
| Oct 1, 2007 | Dec 31, 2007 | MCL | Yes | No | 14 MG/L | - | 10 | Resolved | Dec 31, 2007 | - | |
| Oct 1, 2007 | Dec 31, 2007 | MCL | Yes | No | 14 MG/L | - | 10 | Resolved | Dec 31, 2007 | - | |
| Oct 1, 2007 | Dec 31, 2007 | MCL | Yes | No | 14 MG/L | - | 10 | Resolved | Dec 31, 2007 | - | |
| Oct 1, 2007 | Dec 31, 2007 | MCL | Yes | No | 14 MG/L | - | 10 | 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.