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COPAN PWA

Oklahoma — Community Water System — PWSID: OK1021417

System Information

PWSIDOK1021417
System NameCOPAN PWA
System TypeCommunity Water System
Water SourceSurface Water
Activity StatusActive
Owner TypeLocal
EPA Region06
Serves SchoolNo
WholesalerNo
First ReportedJan 12, 1984
Last ReportedNov 14, 2025

Location & Contact

StateOklahoma
CityCOPAN
ZIP Code74022
AddressEric Mumma, Mayor
OrganizationCOPAN PWA
Phone918-532-4114

Population & Service

Population Served733
Service Connections357

Drinking Water Violations (397)

This water system has 397 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
Jun 30, 2025 — Total Haloacetic Acids (HAA5) MR No No — 0.060 mg/L — Resolved Sep 18, 2025 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jun 30, 2025 — TTHM MR No No — 0.080 mg/L — Resolved Sep 18, 2025 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jun 30, 2025 — Total Haloacetic Acids (HAA5) MR No No — 0.060 mg/L — Resolved Sep 18, 2025 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jun 30, 2025 — TTHM MR No No — 0.080 mg/L — Resolved Sep 18, 2025 Stage 2 Disinfectants and Disinfection Byproducts Rule
May 1, 2025 May 31, 2025 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Archived May 31, 2025 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
May 1, 2025 May 31, 2025 Surface Water Treatment Rule TT Yes No — — — Archived May 31, 2025 Surface Water Treatment Rule
May 1, 2025 May 31, 2025 Surface Water Treatment Rule TT Yes No — — — Archived May 31, 2025 Surface Water Treatment Rule
May 1, 2025 May 31, 2025 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Archived May 31, 2025 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
May 1, 2025 May 31, 2025 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Archived May 31, 2025 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
May 1, 2025 May 31, 2025 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Archived May 31, 2025 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Apr 1, 2025 Apr 30, 2025 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Archived Apr 30, 2025 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Apr 1, 2025 Apr 30, 2025 Surface Water Treatment Rule TT Yes No — — — Archived Apr 30, 2025 Surface Water Treatment Rule
Apr 1, 2025 Apr 30, 2025 Surface Water Treatment Rule TT Yes No — — — Archived Apr 30, 2025 Surface Water Treatment Rule
Apr 1, 2025 Apr 30, 2025 Surface Water Treatment Rule TT Yes No — — — Archived Apr 30, 2025 Surface Water Treatment Rule
Apr 1, 2025 Jun 30, 2025 Total Haloacetic Acids (HAA5) MCL Yes No .105 MG/L 0.060 mg/L .06 Archived Jun 30, 2025 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2025 Jun 30, 2025 Total Haloacetic Acids (HAA5) MCL Yes No .118 MG/L 0.060 mg/L .06 Archived Jun 30, 2025 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2025 Apr 30, 2025 Surface Water Treatment Rule TT Yes No — — — Archived Apr 30, 2025 Surface Water Treatment Rule
Apr 1, 2025 Jun 30, 2025 TTHM MCL Yes No .099 MG/L 0.080 mg/L .08 Archived Jun 30, 2025 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2025 Jun 30, 2025 Total Haloacetic Acids (HAA5) MCL Yes No .118 MG/L 0.060 mg/L .06 Archived Jun 30, 2025 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2025 Apr 30, 2025 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Archived Apr 30, 2025 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Apr 1, 2025 Jun 30, 2025 Total Haloacetic Acids (HAA5) MCL Yes No .105 MG/L 0.060 mg/L .06 Archived Jun 30, 2025 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2025 Jun 30, 2025 Total Haloacetic Acids (HAA5) MCL Yes No .118 MG/L 0.060 mg/L .06 Archived Jun 30, 2025 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2025 Jun 30, 2025 TTHM MCL Yes No .099 MG/L 0.080 mg/L .08 Archived Jun 30, 2025 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2025 Jun 30, 2025 TTHM MCL Yes No .099 MG/L 0.080 mg/L .08 Archived Jun 30, 2025 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2025 Jun 30, 2025 Total Haloacetic Acids (HAA5) MCL Yes No .105 MG/L 0.060 mg/L .06 Archived Jun 30, 2025 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2025 — TTHM MR No No — 0.080 mg/L — Resolved Sep 18, 2025 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2025 — Total Haloacetic Acids (HAA5) MR No No — 0.060 mg/L — Resolved Jul 10, 2025 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2025 — Total Haloacetic Acids (HAA5) MR No No — 0.060 mg/L — Resolved Jul 10, 2025 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2025 — TTHM MR No No — 0.080 mg/L — Resolved Sep 18, 2025 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2025 Apr 30, 2025 Surface Water Treatment Rule TT Yes No — — — Archived Apr 30, 2025 Surface Water Treatment Rule
Apr 1, 2025 Apr 30, 2025 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Archived Apr 30, 2025 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Apr 1, 2025 — Total Haloacetic Acids (HAA5) MR No No — 0.060 mg/L — Resolved Jul 10, 2025 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2025 Apr 30, 2025 Surface Water Treatment Rule TT Yes No — — — Archived Apr 30, 2025 Surface Water Treatment Rule
Apr 1, 2025 Apr 30, 2025 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Archived Apr 30, 2025 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Apr 1, 2025 — TTHM MR No No — 0.080 mg/L — Resolved Sep 18, 2025 Stage 2 Disinfectants and Disinfection Byproducts Rule
Mar 29, 2025 — Public Notice Other No No — — — Addressed — Public Notice Rule and Revised PN Rule
Mar 1, 2025 Mar 31, 2025 Surface Water Treatment Rule TT Yes No — — — Archived Mar 31, 2025 Surface Water Treatment Rule
Mar 1, 2025 Mar 31, 2025 Surface Water Treatment Rule TT Yes No — — — Archived Mar 31, 2025 Surface Water Treatment Rule
Mar 1, 2025 Mar 31, 2025 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Archived Mar 31, 2025 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Mar 1, 2025 Mar 31, 2025 Surface Water Treatment Rule TT Yes No — — — Archived Mar 31, 2025 Surface Water Treatment Rule
Mar 1, 2025 Mar 31, 2025 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Archived Mar 31, 2025 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Mar 1, 2025 Mar 31, 2025 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Archived Mar 31, 2025 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Mar 1, 2025 Mar 31, 2025 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Archived Mar 31, 2025 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Feb 1, 2025 Feb 28, 2025 Interim Enhanced Surface Water Treatment Rule MR No Yes — — — Resolved Feb 28, 2025 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Feb 1, 2025 Feb 28, 2025 Interim Enhanced Surface Water Treatment Rule MR No Yes — — — Resolved Feb 28, 2025 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Feb 1, 2025 Feb 28, 2025 Interim Enhanced Surface Water Treatment Rule MR No Yes — — — Resolved Feb 28, 2025 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Feb 1, 2025 Feb 28, 2025 Interim Enhanced Surface Water Treatment Rule MR No Yes — — — Resolved Feb 28, 2025 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Jan 1, 2025 Mar 31, 2025 TTHM MCL Yes No .1 MG/L 0.080 mg/L .08 Archived Mar 31, 2025 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2025 Mar 31, 2025 Total Haloacetic Acids (HAA5) MCL Yes No .113 MG/L 0.060 mg/L .06 Archived Mar 31, 2025 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2025 Jan 31, 2025 Interim Enhanced Surface Water Treatment Rule MR No Yes — — — Resolved Jan 31, 2025 Interim and Long Term 1 Enhanced Surface Water Treatment 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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