Public Water Partners

COPAN, OK · Washington County

COPAN PWA Water System

Consumer Confidence Report status

COPAN PWA must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.

As of August 1, 2026, EPA's federal records show 7 items for COPAN PWA that are open and awaiting resolution. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 2026. This is a record-keeping and public-information tool — it does not replace Oklahoma’s official records. Always confirm current status with Oklahoma before making decisions based on this information.

System facts

System ID (PWSID)
OK1021417
System type
Community Water System
Population served
733
Service connections
403
Ownership
local government
Water source
surface water (rivers, lakes, or reservoirs)

COPAN PWA is one of 511 community water systems in Oklahoma in the 501 to 3,300 people size category, serving 733 people from surface water.

As of August 1, 2026, its federal record holds 66 entries between 1998 and 2026, of which 7 remain open; none are health-based.

Of the 66, 35 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves the Stage 2 Disinfectants and Disinfection Byproducts Rule, the Surface Water Treatment Rules, and volatile organic chemicals.

Violation history

  • Follow-up Or Routine LCR Tap M/R

    Lead and Copper Rule

    January 1, 2026

    Addressed
  • Maximum Contaminant Level Violation, Average

    Health-based

    Total Haloacetic Acids (HAA5)

    October 1, 2025 – December 31, 2025

    Archived
  • Maximum Contaminant Level Violation, Average

    Health-based

    Total Haloacetic Acids (HAA5)

    October 1, 2025 – December 31, 2025

    Archived
  • Monthly Turbidity Exceed (Enhanced SWTR)

    Health-based

    Interim Enhanced Surface Water Treatment Rule

    July 1, 2025 – July 31, 2025

    Archived
  • Maximum Contaminant Level Violation, Average

    Health-based

    Total Haloacetic Acids (HAA5)

    July 1, 2025 – September 30, 2025

    Archived
  • Maximum Contaminant Level Violation, Average

    Health-based

    Total Haloacetic Acids (HAA5)

    July 1, 2025 – September 30, 2025

    Archived
  • Maximum Contaminant Level Violation, Average

    Health-based

    TTHM

    July 1, 2025 – September 30, 2025

    Archived
  • Maximum Contaminant Level Violation, Average

    Health-based

    TTHM

    July 1, 2025 – September 30, 2025

    Archived
  • Failure Submit IDSE/Subpart V Plan Rpt

    Total Haloacetic Acids (HAA5)

    June 30, 2025 – September 18, 2025

    Resolved
  • Failure Submit IDSE/Subpart V Plan Rpt

    TTHM

    June 30, 2025 – September 18, 2025

    Resolved
  • Monthly Turbidity Exceed (Enhanced SWTR)

    Health-based

    Interim Enhanced Surface Water Treatment Rule

    May 1, 2025 – May 31, 2025

    Archived
  • Single Turbidity Exceed (Enhanced SWTR)

    Health-based

    Interim Enhanced Surface Water Treatment Rule

    May 1, 2025 – May 31, 2025

    Archived
  • Treatment Technique (SWTR and GWR)

    Health-based

    Surface Water Treatment Rule

    May 1, 2025 – May 31, 2025

    Archived
  • Failure Submit IDSE/Subpart V Plan Rpt

    Total Haloacetic Acids (HAA5)

    April 1, 2025 – July 10, 2025

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    TTHM

    April 1, 2025 – June 30, 2025

    Archived
  • Maximum Contaminant Level Violation, Average

    Health-based

    Total Haloacetic Acids (HAA5)

    April 1, 2025 – June 30, 2025

    Archived
  • Maximum Contaminant Level Violation, Average

    Health-based

    Total Haloacetic Acids (HAA5)

    April 1, 2025 – June 30, 2025

    Archived
  • Single Turbidity Exceed (Enhanced SWTR)

    Health-based

    Interim Enhanced Surface Water Treatment Rule

    April 1, 2025 – April 30, 2025

    Archived
  • Monthly Turbidity Exceed (Enhanced SWTR)

    Health-based

    Interim Enhanced Surface Water Treatment Rule

    April 1, 2025 – April 30, 2025

    Archived
  • Failure Submit IDSE/Subpart V Plan Rpt

    TTHM

    April 1, 2025 – September 18, 2025

    Resolved
  • Treatment Technique (SWTR and GWR)

    Health-based

    Surface Water Treatment Rule

    April 1, 2025 – April 30, 2025

    Archived
  • Public Notification Violation for NPDWR Violation

    Public Notice

    March 29, 2025

    Addressed
  • Monthly Turbidity Exceed (Enhanced SWTR)

    Health-based

    Interim Enhanced Surface Water Treatment Rule

    March 1, 2025 – March 31, 2025

    Archived
  • Single Turbidity Exceed (Enhanced SWTR)

    Health-based

    Interim Enhanced Surface Water Treatment Rule

    March 1, 2025 – March 31, 2025

    Archived
  • Maximum Contaminant Level Violation, Average

    Health-based

    Total Haloacetic Acids (HAA5)

    January 1, 2025 – March 31, 2025

    Archived
  • Monitoring, Regular

    Nitrate-Nitrite

    January 1, 2025 – December 31, 2025

    Archived
  • Maximum Contaminant Level Violation, Average

    Health-based

    Total Haloacetic Acids (HAA5)

    January 1, 2025 – March 31, 2025

    Archived
  • Failure Submit IDSE/Subpart V Plan Rpt

    TTHM

    December 30, 2024 – September 18, 2025

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    December 21, 2024

    Addressed
  • Monitoring and Reporting (DBP)

    CARBON, TOTAL

    November 1, 2024 – November 30, 2024

    Resolved
  • Monitoring, Routine (RTCR)

    Revised Total Coliform Rule

    November 1, 2024 – November 30, 2024

    Resolved
  • Monitoring and Reporting (DBP)

    Chlorine

    November 1, 2024 – November 30, 2024

    Resolved
  • Monitoring, Turbidity (Enhanced SWTR)

    Interim Enhanced Surface Water Treatment Rule

    November 1, 2024 – November 30, 2024

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Total Haloacetic Acids (HAA5)

    October 1, 2024 – December 31, 2024

    Archived
  • Monitoring, Turbidity (Enhanced SWTR)

    Interim Enhanced Surface Water Treatment Rule

    October 1, 2024 – October 31, 2024

    Resolved
  • Follow-up Or Routine LCR Tap M/R

    Lead and Copper Rule

    October 1, 2024 – September 18, 2025

    Resolved
  • Failure Submit IDSE/Subpart V Plan Rpt

    Total Haloacetic Acids (HAA5)

    September 29, 2024 – September 18, 2025

    Resolved
  • Failure Submit IDSE/Subpart V Plan Rpt

    TTHM

    September 29, 2024 – September 18, 2025

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    September 5, 2024

    Addressed
  • Monitoring, Turbidity (Enhanced SWTR)

    Interim Enhanced Surface Water Treatment Rule

    September 1, 2024 – September 30, 2024

    Resolved
  • Monitoring, Turbidity (Enhanced SWTR)

    Interim Enhanced Surface Water Treatment Rule

    August 1, 2024 – August 31, 2024

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    TTHM

    July 1, 2024 – September 30, 2024

    Archived
  • Monitoring, Turbidity (Enhanced SWTR)

    Interim Enhanced Surface Water Treatment Rule

    July 1, 2024 – July 31, 2024

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    June 3, 2024

    Addressed
  • Monitoring, Routine (RTCR)

    Revised Total Coliform Rule

    May 1, 2024 – May 31, 2024

    Resolved
  • Monitoring and Reporting (DBP)

    CARBON, TOTAL

    April 1, 2024 – June 30, 2024

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    TTHM

    April 1, 2024 – June 30, 2024

    Archived
  • Public Notification Violation for NPDWR Violation

    Public Notice

    March 10, 2024

    Addressed
  • Public Notification Violation for NPDWR Violation

    Public Notice

    November 18, 2023

    Addressed
  • Monthly Turbidity Exceed (Enhanced SWTR)

    Health-based

    Interim Enhanced Surface Water Treatment Rule

    June 1, 2023 – June 30, 2023

    Resolved
  • Monitoring, Regular

    1,1-Dichloroethylene

    January 1, 2023 – December 31, 2025

    Archived
  • Monitoring, Regular

    Xylenes, Total

    January 1, 2023 – December 31, 2025

    Archived
  • Monitoring, Regular

    p-Dichlorobenzene

    January 1, 2023 – December 31, 2025

    Archived
  • Monitoring, Regular

    Vinyl chloride

    January 1, 2023 – December 31, 2025

    Archived
  • Monitoring, Regular

    Tetrachloroethylene

    January 1, 2023 – December 31, 2025

    Archived
  • Monitoring, Regular

    Benzene

    January 1, 2023 – December 31, 2025

    Archived
  • Monitoring, Regular

    Toluene

    January 1, 2023 – December 31, 2025

    Archived
  • Monitoring, Regular

    Ethylbenzene

    January 1, 2023 – December 31, 2025

    Archived
  • Monitoring, Regular

    Styrene

    January 1, 2023 – December 31, 2025

    Archived
  • Monitoring, Regular

    1,2-Dichloroethane

    January 1, 2023 – December 31, 2025

    Archived
  • Monitoring, Regular

    Trichloroethylene

    January 1, 2023 – December 31, 2025

    Archived
  • Monitoring, Regular

    Combined Uranium

    January 1, 2020 – December 31, 2025

    Archived
  • Monitoring, Regular

    Gross Alpha, Excl. Radon and U

    January 1, 2020 – December 31, 2025

    Archived
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    January 1, 2006 – January 31, 2006

    Resolved
  • Monitoring of Treatment (SWTR-Filter)

    Surface Water Treatment Rule

    October 1, 1999 – October 31, 1999

    Resolved
  • Treatment Technique (SWTR and GWR)

    Health-based

    Surface Water Treatment Rule

    August 1, 1998 – August 31, 1998

    Archived

Addressed corrective action reported, pending final confirmationArchived closed in EPA's records (typically due to age or a data correction)Resolved addressed and confirmed by the state

Enforcement actions

Common questions

Is COPAN PWA required to publish a Consumer Confidence Report?

Yes. COPAN PWA is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.

When is COPAN PWA’s next Consumer Confidence Report due?

COPAN PWA’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.

Does COPAN PWA have any open drinking water violations on record?

As of August 1, 2026, EPA's federal records show 7 items for COPAN PWA that are open and awaiting resolution. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings.

What is a Consumer Confidence Report?

A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.

Contact

COPAN PWA

918-532-4114

COPAN, OK 74022