TONKAWA
Oklahoma - Community Water System - PWSID: OK2003603
System Information
| PWSID | OK2003603 |
| System Name | TONKAWA |
| System Type | Community Water System |
| Water Source | Ground Water |
| 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 | TONKAWA |
| ZIP Code | 74653 |
| Address | Joe Lewallen, Mayor |
| Organization | TONKAWA |
| Phone | 580-628-2508 |
Population & Service
| Population Served | 3,299 |
| Service Connections | 1,255 |
Drinking Water Violations (115)
This water system has 115 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Aug 14, 2025 | - | MR | No | No | - | - | - | Unaddressed | - | - | |
| Aug 14, 2025 | - | MR | No | No | - | - | - | Unaddressed | - | - | |
| Oct 17, 2024 | - | RPT | No | No | - | - | - | Resolved | Jul 15, 2025 | - | |
| Oct 17, 2024 | - | RPT | No | No | - | - | - | Resolved | Jul 15, 2025 | - | |
| Oct 17, 2024 | - | TT | Yes | No | - | - | - | Resolved | Jul 15, 2025 | - | |
| Oct 17, 2024 | - | TT | Yes | No | - | - | - | Resolved | Jul 15, 2025 | - | |
| Oct 1, 2022 | Sep 30, 2023 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Sep 30, 2023 | - | |
| Oct 1, 2022 | Sep 30, 2023 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Sep 30, 2023 | - | |
| Oct 1, 2022 | Sep 30, 2023 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Sep 30, 2023 | - | |
| Oct 1, 2022 | Sep 30, 2023 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Sep 30, 2023 | - | |
| Oct 1, 2022 | Sep 30, 2023 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Sep 30, 2023 | - | |
| Oct 1, 2022 | Sep 30, 2023 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Sep 30, 2023 | - | |
| Oct 1, 2022 | Sep 30, 2023 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Sep 30, 2023 | - | |
| Oct 1, 2022 | Sep 30, 2023 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Sep 30, 2023 | - | |
| Jan 19, 2017 | - | MR | No | No | - | - | - | Unaddressed | - | - | |
| Jan 19, 2017 | - | MR | No | No | - | - | - | Unaddressed | - | - | |
| Jan 19, 2017 | - | MR | No | No | - | - | - | Unaddressed | - | - | |
| Jan 19, 2017 | - | MR | No | No | - | - | - | Unaddressed | - | - | |
| Sep 17, 2015 | - | MR | No | No | - | - | - | Unaddressed | - | - | |
| Sep 17, 2015 | - | MR | No | No | - | - | - | Unaddressed | - | - | |
| Sep 17, 2015 | - | MR | No | No | - | - | - | Unaddressed | - | - | |
| Sep 17, 2015 | - | MR | No | No | - | - | - | Unaddressed | - | - | |
| Sep 18, 2014 | - | MR | No | Yes | - | - | - | Unaddressed | - | - | |
| Sep 18, 2014 | - | MR | No | Yes | - | - | - | Unaddressed | - | - | |
| Sep 18, 2014 | - | MR | No | Yes | - | - | - | Unaddressed | - | - | |
| Sep 18, 2014 | - | MR | No | Yes | - | - | - | Unaddressed | - | - | |
| Aug 21, 2014 | - | MR | No | No | - | - | - | Unaddressed | - | - | |
| Aug 21, 2014 | - | MR | No | No | - | - | - | Unaddressed | - | - | |
| Aug 21, 2014 | - | MR | No | No | - | - | - | Unaddressed | - | - | |
| Aug 21, 2014 | - | MR | No | No | - | - | - | Unaddressed | - | - | |
| Jul 1, 2014 | - | Other | No | No | - | - | - | Resolved | Mar 16, 2015 | - | |
| Jul 1, 2014 | - | Other | No | No | - | - | - | Resolved | Mar 16, 2015 | - | |
| Sep 1, 2013 | Sep 30, 2013 | MR | No | No | - | 5% of samples | - | Resolved | Sep 30, 2013 | - | |
| Sep 1, 2013 | Sep 30, 2013 | MR | No | No | - | 5% of samples | - | Resolved | Sep 30, 2013 | - | |
| Sep 1, 2013 | Sep 30, 2013 | MR | No | No | - | 5% of samples | - | Resolved | Sep 30, 2013 | - | |
| Jul 1, 2013 | - | Other | No | No | - | - | - | Resolved | Oct 14, 2015 | - | |
| Jul 1, 2012 | - | Other | No | No | - | - | - | Resolved | Oct 14, 2015 | - | |
| 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 | - | |
| May 1, 2009 | May 31, 2009 | MR | No | No | - | 5% of samples | - | Resolved | May 31, 2009 | - | |
| May 1, 2009 | May 31, 2009 | MR | No | No | - | 5% of samples | - | Resolved | May 31, 2009 | - | |
| May 1, 2009 | May 31, 2009 | MR | No | No | - | 5% of samples | - | Resolved | May 31, 2009 | - | |
| May 1, 2009 | May 31, 2009 | MR | No | No | - | 5% of samples | - | Resolved | May 31, 2009 | - | |
| Sep 1, 2008 | Sep 30, 2008 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 2008 | - | |
| Sep 1, 2008 | Sep 30, 2008 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 2008 | - | |
| Sep 1, 2008 | Sep 30, 2008 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 2008 | - | |
| Jul 1, 2008 | - | MR | No | No | - | TT | - | Resolved | Jun 9, 2009 | - | |
| Jul 1, 2008 | - | MR | No | No | - | TT | - | Resolved | Jun 9, 2009 | - | |
| Jul 1, 2008 | - | MR | No | No | - | TT | - | Resolved | Jun 9, 2009 | - |
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.