Public Water Partners

BUFFALO, OK · Harper County

HARPER CO RWD #1 Water System

Consumer Confidence Report status

HARPER CO RWD #1 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 1 item for HARPER CO RWD #1 that is 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)
OK2003001
System type
Community Water System
Population served
198
Service connections
350
Ownership
local government
Water source
groundwater (wells)

HARPER CO RWD #1 is one of 1,277 community water systems in Oklahoma in the 500 or fewer people size category, serving 198 people from groundwater.

As of August 1, 2026, its federal record holds 71 entries between 2001 and 2026, of which 1 remains open; none are health-based.

Of the 71, 68 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 volatile organic chemicals, the Total Coliform Rules, and inorganic chemicals.

Violation history

  • Follow-up Or Routine LCR Tap M/R

    Lead and Copper Rule

    January 1, 2026

    Unaddressed
  • Monitoring, Routine (RTCR)

    Revised Total Coliform Rule

    August 1, 2025 – August 31, 2025

    Resolved
  • Monitoring, Routine (RTCR)

    Revised Total Coliform Rule

    July 1, 2025 – July 31, 2025

    Resolved
  • Monitoring, Regular

    Combined Radium (-226 and -228)

    April 1, 2025 – June 30, 2025

    Archived
  • Monitoring and Reporting (DBP)

    Chlorine

    January 1, 2025 – January 31, 2025

    Resolved
  • Monitoring, Routine (RTCR)

    Revised Total Coliform Rule

    December 1, 2024 – December 31, 2024

    Resolved
  • Monitoring, Routine (RTCR)

    Revised Total Coliform Rule

    June 1, 2024 – June 30, 2024

    Resolved
  • Monitoring, Regular

    1,1-Dichloroethylene

    April 1, 2024 – June 30, 2024

    Resolved
  • Monitoring, Regular

    Vinyl chloride

    April 1, 2024 – June 30, 2024

    Resolved
  • Monitoring, Regular

    p-Dichlorobenzene

    April 1, 2024 – June 30, 2024

    Resolved
  • Monitoring, Regular

    o-Dichlorobenzene

    April 1, 2024 – June 30, 2024

    Resolved
  • Monitoring, Regular

    DICHLOROMETHANE

    April 1, 2024 – June 30, 2024

    Resolved
  • Monitoring, Regular

    cis-1,2-Dichloroethylene

    April 1, 2024 – June 30, 2024

    Resolved
  • Monitoring, Regular

    Ethylbenzene

    April 1, 2024 – June 30, 2024

    Resolved
  • Monitoring, Regular

    CHLOROBENZENE

    April 1, 2024 – June 30, 2024

    Resolved
  • Monitoring, Regular

    trans-1,2-Dichloroethylene

    April 1, 2024 – June 30, 2024

    Resolved
  • Monitoring, Regular

    1,1-Dichloroethylene

    October 1, 2023 – December 31, 2023

    Resolved
  • Monitoring, Regular

    Vinyl chloride

    October 1, 2023 – December 31, 2023

    Resolved
  • Monitoring, Regular

    1,2,4-Trichlorobenzene

    October 1, 2023 – December 31, 2023

    Resolved
  • Monitoring, Regular

    Combined Uranium

    October 1, 2023 – December 31, 2023

    Resolved
  • Monitoring, Regular

    Ethylbenzene

    October 1, 2023 – December 31, 2023

    Resolved
  • Monitoring, Regular

    Benzene

    October 1, 2023 – December 31, 2023

    Resolved
  • Monitoring, Regular

    CHLOROBENZENE

    October 1, 2023 – December 31, 2023

    Resolved
  • Monitoring, Regular

    Tetrachloroethylene

    October 1, 2023 – December 31, 2023

    Resolved
  • Monitoring, Regular

    1,1,2-Trichloroethane

    October 1, 2023 – December 31, 2023

    Resolved
  • Monitoring, Regular

    1,1,1-Trichloroethane

    October 1, 2023 – December 31, 2023

    Resolved
  • Monitoring, Regular

    1,2-Dichloroethane

    October 1, 2023 – December 31, 2023

    Resolved
  • Monitoring, Regular

    trans-1,2-Dichloroethylene

    October 1, 2023 – December 31, 2023

    Resolved
  • Monitoring, Regular

    1,1,1-Trichloroethane

    July 1, 2023 – September 30, 2023

    Resolved
  • Monitoring, Regular

    Toluene

    July 1, 2023 – September 30, 2023

    Resolved
  • Monitoring, Regular

    Styrene

    July 1, 2023 – September 30, 2023

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

    Lead and Copper Rule

    July 1, 2023 – September 5, 2025

    Resolved
  • Monitoring, Regular

    Gross Beta Particle Activity

    April 1, 2023 – June 30, 2023

    Resolved
  • Monitoring, Regular

    Selenium

    January 1, 2023 – December 31, 2025

    Archived
  • Monitoring, Regular

    Nitrate-Nitrite

    January 1, 2023 – December 31, 2023

    Resolved
  • Monitoring and Reporting (DBP)

    TTHM

    January 1, 2023 – December 31, 2025

    Archived
  • Monitoring and Reporting (DBP)

    Total Haloacetic Acids (HAA5)

    January 1, 2023 – December 31, 2025

    Archived
  • Monitoring, Regular

    Barium

    January 1, 2023 – December 31, 2025

    Archived
  • Monitoring, Regular

    Fluoride

    January 1, 2023 – December 31, 2025

    Archived
  • Monitoring, Regular

    Nickel

    January 1, 2023 – December 31, 2025

    Archived
  • Monitoring, Regular

    Cadmium

    January 1, 2023 – December 31, 2025

    Archived
  • Monitoring, Regular

    Chromium

    January 1, 2023 – December 31, 2025

    Archived
  • Monitoring, Regular

    Beryllium, Total

    January 1, 2023 – December 31, 2025

    Archived
  • Monitoring, Routine (RTCR)

    Revised Total Coliform Rule

    September 1, 2022 – September 30, 2022

    Resolved
  • Monitoring, Repeat Major (TCR)

    Coliform (TCR)

    August 1, 2013 – August 31, 2013

    Resolved
  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    July 1, 2013 – July 31, 2013

    Resolved
  • Monitoring, Source Water (GWR)

    E. COLI

    June 1, 2013 – June 30, 2013

    Resolved
  • Monitoring, Routine Minor (TCR)

    Coliform (TCR)

    October 1, 2012 – October 31, 2012

    Resolved
  • Monitoring, Source Water (GWR)

    E. COLI

    September 1, 2012 – September 30, 2012

    Resolved
  • Consumer Confidence Report Complete Failure to Report

    Consumer Confidence Rule

    July 1, 2012 – July 2, 2015

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    December 1, 2011 – December 31, 2011

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    September 1, 2011 – September 30, 2011

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    January 1, 2011 – January 31, 2011

    Resolved
  • Monitoring, Regular

    cis-1,2-Dichloroethylene

    January 1, 2011 – December 31, 2011

    Resolved
  • Monitoring, Regular

    1,2-Dichloroethane

    January 1, 2011 – December 31, 2011

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

    Lead and Copper Rule

    July 1, 2010 – July 12, 2013

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    January 1, 2010 – January 31, 2010

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    August 1, 2009 – August 31, 2009

    Resolved
  • Monitoring, Regular

    Arsenic

    January 1, 2008 – December 31, 2010

    Resolved
  • Consumer Confidence Report Complete Failure to Report

    Consumer Confidence Rule

    July 1, 2007 – July 2, 2015

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    March 1, 2007 – March 31, 2007

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    January 1, 2006 – January 31, 2006

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    November 1, 2004 – November 30, 2004

    Resolved
  • Monitoring and Reporting (DBP)

    Total Haloacetic Acids (HAA5)

    January 1, 2004 – December 31, 2004

    Resolved
  • Monitoring, Regular

    Xylenes, Total

    April 1, 2001 – June 30, 2001

    Resolved
  • Monitoring, Regular

    Vinyl chloride

    April 1, 2001 – June 30, 2001

    Resolved
  • Monitoring, Regular

    1,1-Dichloroethylene

    April 1, 2001 – June 30, 2001

    Resolved
  • Monitoring, Regular

    trans-1,2-Dichloroethylene

    April 1, 2001 – June 30, 2001

    Resolved
  • Monitoring, Regular

    1,1,1-Trichloroethane

    April 1, 2001 – June 30, 2001

    Resolved
  • Monitoring, Regular

    Carbon tetrachloride

    April 1, 2001 – June 30, 2001

    Resolved
  • Monitoring, Regular

    Combined Radium (-226 and -228)

    January 1, 2001 – March 31, 2001

    Resolved

Unaddressed no corrective action on record yetResolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

Common questions

Is HARPER CO RWD #1 required to publish a Consumer Confidence Report?

Yes. HARPER CO RWD #1 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 HARPER CO RWD #1’s next Consumer Confidence Report due?

HARPER CO RWD #1’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.

Does HARPER CO RWD #1 have any open drinking water violations on record?

As of August 1, 2026, EPA's federal records show 1 item for HARPER CO RWD #1 that is 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

HARPER COUNTY RWD #1

580-727-1032

BUFFALO, OK 73834