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SEQUOYAH CO. RWD #4

Oklahoma — Community Water System — PWSID: OK3006809

System Information

PWSIDOK3006809
System NameSEQUOYAH CO. RWD #4
System TypeCommunity Water System
Water SourceSurface Water Purchased
Activity StatusActive
Owner TypeLocal
EPA Region06
Serves SchoolNo
WholesalerNo
First ReportedMar 11, 1980
Last ReportedNov 14, 2025

Location & Contact

StateOklahoma
CitySALLISAW
ZIP Code74955
AddressMr. Nick Cox
OrganizationSEQUOYAH CO. RWD #4
Phone918-774-9869

Population & Service

Population Served1,750
Service Connections823

Drinking Water Violations (54)

This water system has 54 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, 2025 Jan 31, 2025 Chlorine MR No Yes — 4.0 mg/L — Resolved Jan 31, 2025 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2025 Jan 31, 2025 Revised Total Coliform Rule MON No No — — — Resolved Jan 31, 2025 Revised Total Coliform Rule
Jan 1, 2025 Jan 31, 2025 Revised Total Coliform Rule MON No No — — — Resolved Jan 31, 2025 Revised Total Coliform Rule
Jan 1, 2025 Jan 31, 2025 Revised Total Coliform Rule MON No No — — — Resolved Jan 31, 2025 Revised Total Coliform Rule
Jan 1, 2025 Jan 31, 2025 Revised Total Coliform Rule MON No No — — — Resolved Jan 31, 2025 Revised Total Coliform Rule
Jan 1, 2025 Jan 31, 2025 Chlorine MR No Yes — 4.0 mg/L — Resolved Jan 31, 2025 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2025 Jan 31, 2025 Chlorine MR No Yes — 4.0 mg/L — Resolved Jan 31, 2025 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2025 Jan 31, 2025 Chlorine MR No Yes — 4.0 mg/L — Resolved Jan 31, 2025 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jun 30, 2018 — TTHM MR No No — 0.080 mg/L — Resolved Apr 24, 2019 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jun 30, 2018 — TTHM MR No No — 0.080 mg/L — Resolved Apr 24, 2019 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jun 30, 2018 — TTHM MR No No — 0.080 mg/L — Resolved Apr 24, 2019 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2018 Jun 30, 2018 TTHM MCL Yes No .089 MG/L 0.080 mg/L .08 Resolved Jun 30, 2018 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2018 Jun 30, 2018 TTHM MCL Yes No .089 MG/L 0.080 mg/L .08 Resolved Jun 30, 2018 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2018 Jun 30, 2018 TTHM MCL Yes No .089 MG/L 0.080 mg/L .08 Resolved Jun 30, 2018 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2018 Jun 30, 2018 TTHM MCL Yes No .089 MG/L 0.080 mg/L .08 Resolved Jun 30, 2018 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2018 Mar 31, 2018 TTHM MCL Yes No .095 MG/L 0.080 mg/L .08 Resolved Mar 31, 2018 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2018 Mar 31, 2018 TTHM MCL Yes No .095 MG/L 0.080 mg/L .08 Resolved Mar 31, 2018 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2018 Mar 31, 2018 TTHM MCL Yes No .095 MG/L 0.080 mg/L .08 Resolved Mar 31, 2018 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2018 Mar 31, 2018 TTHM MCL Yes No .095 MG/L 0.080 mg/L .08 Resolved Mar 31, 2018 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2017 Dec 31, 2017 TTHM MCL Yes No .09 MG/L 0.080 mg/L .08 Resolved Dec 31, 2017 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2017 Dec 31, 2017 TTHM MCL Yes No .09 MG/L 0.080 mg/L .08 Resolved Dec 31, 2017 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2017 Dec 31, 2017 TTHM MCL Yes No .09 MG/L 0.080 mg/L .08 Resolved Dec 31, 2017 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2017 Dec 31, 2017 TTHM MCL Yes No .09 MG/L 0.080 mg/L .08 Resolved Dec 31, 2017 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2017 Sep 30, 2017 TTHM MCL Yes No .084 MG/L 0.080 mg/L .08 Resolved Sep 30, 2017 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2017 Sep 30, 2017 TTHM MCL Yes No .084 MG/L 0.080 mg/L .08 Resolved Sep 30, 2017 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2017 Sep 30, 2017 TTHM MCL Yes No .084 MG/L 0.080 mg/L .08 Resolved Sep 30, 2017 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2017 Sep 30, 2017 TTHM MCL Yes No .084 MG/L 0.080 mg/L .08 Resolved Sep 30, 2017 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2013 Nov 30, 2013 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Nov 30, 2013 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2013 Nov 30, 2013 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Nov 30, 2013 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2013 Nov 30, 2013 TTHM MR No Yes — 0.080 mg/L — Resolved Nov 30, 2013 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2013 Nov 30, 2013 TTHM MR No Yes — 0.080 mg/L — Resolved Nov 30, 2013 Stage 2 Disinfectants and Disinfection Byproducts Rule
May 1, 2009 May 31, 2009 Coliform (TCR) MR No No — 5% of samples — Resolved May 31, 2009 Total Coliform Rule
May 1, 2009 May 31, 2009 Coliform (TCR) MR No No — 5% of samples — Resolved May 31, 2009 Total Coliform Rule
May 1, 2009 May 31, 2009 Coliform (TCR) MR No No — 5% of samples — Resolved May 31, 2009 Total Coliform Rule
Jun 1, 2005 Jun 30, 2005 Coliform (TCR) MR No No — 5% of samples — Resolved Jun 30, 2005 Total Coliform Rule
Jun 1, 2005 Jun 30, 2005 Coliform (TCR) MR No No — 5% of samples — Resolved Jun 30, 2005 Total Coliform Rule
Jun 1, 2005 Jun 30, 2005 Coliform (TCR) MR No No — 5% of samples — Resolved Jun 30, 2005 Total Coliform Rule
Jun 1, 2005 Jun 30, 2005 Coliform (TCR) MR No No — 5% of samples — Resolved Jun 30, 2005 Total Coliform Rule
Sep 1, 2003 Sep 30, 2003 Coliform (TCR) MR No No — 5% of samples — Resolved Sep 30, 2003 Total Coliform Rule
Sep 1, 2003 Sep 30, 2003 Coliform (TCR) MR No No — 5% of samples — Resolved Sep 30, 2003 Total Coliform Rule
Sep 1, 2003 Sep 30, 2003 Coliform (TCR) MR No No — 5% of samples — Resolved Sep 30, 2003 Total Coliform Rule
Sep 1, 2003 Sep 30, 2003 Coliform (TCR) MR No No — 5% of samples — Resolved Sep 30, 2003 Total Coliform Rule
Jun 1, 2003 Jun 30, 2003 Coliform (TCR) MR No No — 5% of samples — Resolved Jun 30, 2003 Total Coliform Rule
Jun 1, 2003 Jun 30, 2003 Coliform (TCR) MR No No — 5% of samples — Resolved Jun 30, 2003 Total Coliform Rule
Jun 1, 2003 Jun 30, 2003 Coliform (TCR) MR No No — 5% of samples — Resolved Jun 30, 2003 Total Coliform Rule
Jun 1, 2003 Jun 30, 2003 Coliform (TCR) MR No No — 5% of samples — Resolved Jun 30, 2003 Total Coliform Rule
May 1, 2003 May 31, 2003 Coliform (TCR) MR No No — 5% of samples — Resolved May 31, 2003 Total Coliform Rule
May 1, 2003 May 31, 2003 Coliform (TCR) MR No No — 5% of samples — Resolved May 31, 2003 Total Coliform Rule
May 1, 2003 May 31, 2003 Coliform (TCR) MR No No — 5% of samples — Resolved May 31, 2003 Total Coliform Rule
May 1, 2003 May 31, 2003 Coliform (TCR) MR No No — 5% of samples — Resolved May 31, 2003 Total Coliform Rule

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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