OASIS WATER SERVICE
Montana - Community Water System - PWSID: MT0003946
System Information
| PWSID | MT0003946 |
| System Name | OASIS WATER SERVICE |
| System Type | Community Water System |
| Water Source | Surface Water Purchased |
| Activity Status | Non-Inventory |
| Owner Type | Private |
| EPA Region | 08 |
| Serves School | No |
| Wholesaler | Yes |
| First Reported | Dec 16, 1997 |
| Last Reported | Mar 26, 2026 |
Location & Contact
| State | Montana |
| City | GREAT FALLS |
| ZIP Code | 59403 |
| Address | OASIS WATER SERVICE |
| Organization | CAMPBELL, JASON |
| Phone | 406-727-2800 |
Population & Service
| Population Served | 45 |
| Service Connections | 1 |
Drinking Water Violations (105)
This water system has 105 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | - | |
| Oct 1, 2015 | - | Other | No | No | - | - | - | Resolved | Dec 11, 2015 | - | |
| Oct 1, 2015 | - | Other | No | No | - | - | - | Resolved | Dec 11, 2015 | - | |
| Jul 1, 2015 | - | Other | No | No | - | - | - | Archived | Dec 29, 2015 | - | |
| Oct 1, 2014 | - | Other | No | No | - | - | - | Resolved | Jan 29, 2015 | - | |
| Oct 1, 2014 | - | Other | No | No | - | - | - | Resolved | Jan 29, 2015 | - | |
| Jul 1, 2014 | - | Other | No | No | - | - | - | Resolved | Jan 29, 2015 | - | |
| Jul 1, 2014 | - | Other | No | No | - | - | - | Resolved | Jan 29, 2015 | - | |
| Jan 1, 2014 | - | MR | No | No | - | TT | - | Archived | Dec 29, 2015 | - | |
| Oct 1, 2013 | - | Other | No | No | - | - | - | Resolved | Jan 28, 2014 | - | |
| Oct 1, 2013 | - | Other | No | No | - | - | - | Resolved | Jan 28, 2014 | - | |
| Jul 1, 2013 | - | Other | No | No | - | - | - | Resolved | Jan 28, 2014 | - | |
| Jul 1, 2013 | - | Other | No | No | - | - | - | Resolved | Jan 28, 2014 | - | |
| Oct 1, 2012 | - | Other | No | No | - | - | - | Resolved | Jan 24, 2013 | - | |
| Oct 1, 2012 | - | Other | No | No | - | - | - | Resolved | Jan 24, 2013 | - | |
| Jan 1, 2011 | - | MR | No | No | - | TT | - | Resolved | May 12, 2011 | - | |
| Jan 1, 2011 | - | MR | No | No | - | TT | - | Resolved | May 12, 2011 | - | |
| Aug 15, 2007 | - | MR | No | No | - | TT | - | Resolved | Aug 29, 2007 | - | |
| Aug 15, 2007 | - | MR | No | No | - | TT | - | Resolved | Aug 29, 2007 | - | |
| Aug 15, 2007 | - | MR | No | No | - | TT | - | Resolved | Aug 29, 2007 | - | |
| Aug 15, 2007 | - | MR | No | No | - | TT | - | Resolved | Aug 29, 2007 | - | |
| Aug 15, 2007 | - | MR | No | No | - | TT | - | Resolved | Aug 29, 2007 | - | |
| Oct 1, 2006 | - | MR | No | No | - | TT | - | Resolved | Aug 29, 2007 | - | |
| Oct 1, 2006 | - | MR | No | No | - | TT | - | Resolved | Aug 29, 2007 | - | |
| Oct 1, 2006 | - | MR | No | No | - | TT | - | Resolved | Aug 29, 2007 | - | |
| Oct 1, 2006 | - | MR | No | No | - | TT | - | Resolved | Aug 29, 2007 | - | |
| Oct 1, 2006 | - | MR | No | No | - | TT | - | Resolved | Aug 29, 2007 | - | |
| Jul 1, 2006 | - | Other | No | No | - | - | - | Resolved | Oct 22, 2008 | - | |
| Jul 1, 2006 | - | MR | No | No | - | TT | - | Resolved | Aug 29, 2007 | - | |
| Jul 1, 2006 | - | MR | No | No | - | TT | - | Resolved | Aug 29, 2007 | - | |
| Jul 1, 2006 | - | MR | No | No | - | TT | - | Resolved | Aug 29, 2007 | - | |
| Jul 1, 2006 | - | MR | No | No | - | TT | - | Resolved | Aug 29, 2007 | - | |
| Jul 1, 2006 | - | MR | No | No | - | TT | - | Resolved | Aug 29, 2007 | - | |
| Jul 1, 2006 | - | Other | No | No | - | - | - | Resolved | Oct 22, 2008 | - | |
| Jul 1, 2006 | - | Other | No | No | - | - | - | Resolved | Oct 22, 2008 | - | |
| Jul 1, 2005 | - | MR | No | No | - | TT | - | Resolved | Aug 29, 2007 | - | |
| Jul 1, 2005 | - | MR | No | No | - | TT | - | Resolved | Aug 29, 2007 | - | |
| Jul 1, 2005 | - | MR | No | No | - | TT | - | Resolved | Aug 29, 2007 | - | |
| Jul 1, 2005 | - | MR | No | No | - | TT | - | Resolved | Aug 29, 2007 | - | |
| Jul 1, 2005 | - | MR | No | No | - | TT | - | Resolved | Aug 29, 2007 | - | |
| Oct 1, 2004 | - | MR | No | No | - | TT | - | Resolved | Aug 29, 2007 | - | |
| Oct 1, 2004 | - | MR | No | No | - | TT | - | Resolved | Aug 29, 2007 | - | |
| Oct 1, 2004 | - | MR | No | No | - | TT | - | Resolved | Aug 29, 2007 | - | |
| Oct 1, 2004 | - | MR | No | No | - | TT | - | Resolved | Aug 29, 2007 | - | |
| Oct 1, 2004 | - | MR | No | No | - | TT | - | Resolved | Aug 29, 2007 | - | |
| Jul 1, 2004 | - | MR | No | No | - | TT | - | Resolved | Aug 29, 2007 | - | |
| Jul 1, 2004 | - | MR | No | No | - | TT | - | Resolved | Aug 29, 2007 | - | |
| Jul 1, 2004 | - | MR | No | No | - | TT | - | Resolved | Aug 29, 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.