OWASSO
Oklahoma - Community Water System - PWSID: OK3007218
System Information
| PWSID | OK3007218 |
| System Name | OWASSO |
| System Type | Community Water System |
| Water Source | Surface Water Purchased |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 06 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Mar 11, 1980 |
| Last Reported | Feb 18, 2026 |
Location & Contact
| State | Oklahoma |
| City | OWASSO |
| ZIP Code | 74055 |
| Address | Roger Stevens, Director |
| Organization | OWASSO |
| Phone | 918-272-4959 |
Population & Service
| Population Served | 23,000 |
| Service Connections | 10,468 |
Drinking Water Violations (81)
This water system has 81 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 17, 2024 | - | TT | Yes | No | - | - | - | Resolved | Jul 15, 2025 | - | |
| Oct 17, 2024 | - | TT | Yes | No | - | - | - | Resolved | Jul 15, 2025 | - | |
| Oct 17, 2024 | - | RPT | No | No | - | - | - | Resolved | Jul 15, 2025 | - | |
| Oct 17, 2024 | - | RPT | No | No | - | - | - | Resolved | Jul 15, 2025 | - | |
| Oct 1, 2016 | - | MR | No | No | - | TT | - | Resolved | Mar 21, 2018 | - | |
| Oct 1, 2016 | - | MR | No | No | - | TT | - | Resolved | Mar 21, 2018 | - | |
| Oct 1, 2016 | - | MR | No | No | - | TT | - | Resolved | Mar 21, 2018 | - | |
| Oct 1, 2016 | - | MR | No | No | - | TT | - | Resolved | Mar 21, 2018 | - | |
| Feb 1, 2013 | Feb 28, 2013 | MCL | Yes | No | - | 5% of samples | - | Resolved | Feb 28, 2013 | - | |
| Feb 1, 2013 | Feb 28, 2013 | MCL | Yes | No | - | 5% of samples | - | Resolved | Feb 28, 2013 | - | |
| Feb 1, 2013 | Feb 28, 2013 | MCL | Yes | No | - | 5% of samples | - | Resolved | Feb 28, 2013 | - | |
| Feb 1, 2013 | Feb 28, 2013 | MCL | Yes | No | - | 5% of samples | - | Resolved | Feb 28, 2013 | - | |
| Oct 1, 2011 | Oct 31, 2011 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 2011 | - | |
| Oct 1, 2011 | Oct 31, 2011 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 2011 | - | |
| Oct 1, 2011 | Oct 31, 2011 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 2011 | - | |
| Dec 1, 2007 | Jan 31, 2008 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Jan 31, 2008 | - | |
| Dec 1, 2007 | Jan 31, 2008 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Jan 31, 2008 | - | |
| Dec 1, 2007 | Jan 31, 2008 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Jan 31, 2008 | - | |
| Dec 1, 2007 | Jan 31, 2008 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Jan 31, 2008 | - | |
| Dec 1, 2007 | Jan 31, 2008 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Jan 31, 2008 | - | |
| Dec 1, 2007 | Jan 31, 2008 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Jan 31, 2008 | - | |
| Dec 1, 2007 | Jan 31, 2008 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Jan 31, 2008 | - | |
| Dec 1, 2007 | Jan 31, 2008 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Jan 31, 2008 | - | |
| Dec 1, 2005 | Dec 31, 2005 | MCL | Yes | No | - | 5% of samples | - | Resolved | Dec 31, 2005 | - | |
| Dec 1, 2005 | Dec 31, 2005 | MCL | Yes | No | - | 5% of samples | - | Resolved | Dec 31, 2005 | - | |
| Dec 1, 2005 | Dec 31, 2005 | MCL | Yes | No | - | 5% of samples | - | Resolved | Dec 31, 2005 | - | |
| Dec 1, 2005 | Dec 31, 2005 | MCL | Yes | No | - | 5% of samples | - | Resolved | Dec 31, 2005 | - | |
| Oct 1, 2005 | Oct 31, 2005 | MR | No | No | - | 5% of samples | - | Resolved | Oct 31, 2005 | - | |
| Oct 1, 2005 | Oct 31, 2005 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 2005 | - | |
| Oct 1, 2005 | Oct 31, 2005 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 2005 | - | |
| Oct 1, 2005 | Oct 31, 2005 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 2005 | - | |
| Oct 1, 2005 | Oct 31, 2005 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 2005 | - | |
| Oct 1, 2005 | Oct 31, 2005 | MR | No | No | - | 5% of samples | - | Resolved | Oct 31, 2005 | - | |
| Oct 1, 2005 | Oct 31, 2005 | MR | No | No | - | 5% of samples | - | Resolved | Oct 31, 2005 | - | |
| Oct 1, 2005 | Oct 31, 2005 | MR | No | No | - | 5% of samples | - | Resolved | Oct 31, 2005 | - | |
| Nov 1, 2004 | Nov 30, 2004 | MCL | Yes | No | - | 5% of samples | - | Resolved | Nov 30, 2004 | - | |
| Nov 1, 2004 | Nov 30, 2004 | MCL | Yes | No | - | 5% of samples | - | Resolved | Nov 30, 2004 | - | |
| Nov 1, 2004 | Nov 30, 2004 | MCL | Yes | No | - | 5% of samples | - | Resolved | Nov 30, 2004 | - | |
| Nov 1, 2004 | Nov 30, 2004 | MCL | Yes | No | - | 5% of samples | - | Resolved | Nov 30, 2004 | - | |
| Sep 1, 2004 | Sep 30, 2004 | MR | No | No | - | 5% of samples | - | Resolved | Sep 30, 2004 | - | |
| Sep 1, 2004 | Sep 30, 2004 | MR | No | No | - | 5% of samples | - | Resolved | Sep 30, 2004 | - | |
| Sep 1, 2004 | Sep 30, 2004 | MR | No | No | - | 5% of samples | - | Resolved | Sep 30, 2004 | - | |
| Sep 1, 2004 | Sep 30, 2004 | MR | No | No | - | 5% of samples | - | Resolved | Sep 30, 2004 | - | |
| Sep 1, 2003 | Sep 30, 2003 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 2003 | - | |
| Sep 1, 2003 | Sep 30, 2003 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 2003 | - | |
| Sep 1, 2003 | Sep 30, 2003 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 2003 | - | |
| Sep 1, 2003 | Sep 30, 2003 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 2003 | - | |
| Oct 1, 1998 | Oct 31, 1998 | MR | No | No | - | 5% of samples | - | Resolved | Oct 31, 1998 | - | |
| Oct 1, 1997 | Oct 31, 1997 | MR | No | No | - | 5% of samples | - | Resolved | Oct 31, 1997 | - | |
| Sep 1, 1996 | Sep 30, 1996 | MR | No | No | - | 5% of samples | - | Resolved | Sep 30, 1996 | - |
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.