TONKAWA

Oklahoma — Community Water System — PWSID: OK2003603

System Information

PWSIDOK2003603
System NameTONKAWA
System TypeCommunity Water System
Water SourceGround Water
Activity StatusActive
Owner TypeLocal
EPA Region06
Serves SchoolNo
WholesalerNo
First ReportedMar 11, 1980
Last ReportedFeb 18, 2026

Location & Contact

StateOklahoma
CityTONKAWA
ZIP Code74653
AddressJoe Lewallen, Mayor
OrganizationTONKAWA
Phone580-628-2508

Population & Service

Population Served3,299
Service Connections1,255

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.

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