Drinking Water Compliance OS

BUFFALO, OK · Harper County

HARPER CO RWD #1 Water System

Current status

No open violations on record as of July 4, 2026.

This system's next federally required Consumer Confidence Report is due July 1, 2027, under the EPA's revised reporting rule.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed July 4, 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)

Violation history

  • Monitoring, Routine (RTCR)

    Revised Total Coliform Rule

    August 1, 2025 – August 31, 2025

    Archived
  • Monitoring, Routine (RTCR)

    Revised Total Coliform Rule

    July 1, 2025 – July 31, 2025

    Archived
  • Monitoring and Reporting (DBP)

    Chlorine

    July 1, 2025 – July 31, 2025

    Archived
  • Monitoring, Regular

    Gross Beta Particle Activity

    April 1, 2025 – June 30, 2025

    Archived
  • Monitoring, Regular

    Combined Uranium

    April 1, 2025 – June 30, 2025

    Archived
  • Monitoring, Regular

    Gross Alpha, Excl. Radon and U

    April 1, 2025 – June 30, 2025

    Archived
  • Monitoring, Routine (RTCR)

    Revised Total Coliform Rule

    February 1, 2025 – February 28, 2025

    Resolved
  • Monitoring and Reporting (DBP)

    Chlorine

    January 1, 2025 – January 31, 2025

    Resolved
  • Monitoring, Routine (RTCR)

    Revised Total Coliform Rule

    November 1, 2024 – November 30, 2024

    Resolved
  • Monitoring and Reporting (DBP)

    Chlorine

    August 1, 2024 – August 31, 2024

    Resolved
  • Monitoring, Routine (RTCR)

    Revised Total Coliform Rule

    August 1, 2024 – August 31, 2024

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

    Lead and Copper Rule

    July 1, 2024 – May 21, 2025

    Resolved
  • Monitoring and Reporting (DBP)

    Chlorine

    June 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

    Carbon tetrachloride

    April 1, 2024 – June 30, 2024

    Resolved
  • Monitoring, Regular

    1,1,1-Trichloroethane

    April 1, 2024 – June 30, 2024

    Resolved
  • Monitoring, Regular

    1,2-Dichloroethane

    April 1, 2024 – June 30, 2024

    Resolved
  • Monitoring, Regular

    Vinyl chloride

    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

    1,2,4-Trichlorobenzene

    April 1, 2024 – June 30, 2024

    Resolved
  • Monitoring, Regular

    Styrene

    April 1, 2024 – June 30, 2024

    Resolved
  • Monitoring, Regular

    1,1,2-Trichloroethane

    October 1, 2023 – December 31, 2023

    Resolved
  • Monitoring, Regular

    Combined Uranium

    October 1, 2023 – December 31, 2023

    Resolved
  • Monitoring, Regular

    1,2,4-Trichlorobenzene

    October 1, 2023 – December 31, 2023

    Resolved
  • Monitoring, Regular

    cis-1,2-Dichloroethylene

    October 1, 2023 – December 31, 2023

    Resolved
  • Monitoring, Regular

    Xylenes, Total

    October 1, 2023 – December 31, 2023

    Resolved
  • Monitoring, Regular

    Vinyl chloride

    October 1, 2023 – December 31, 2023

    Resolved
  • Monitoring, Regular

    1,1-Dichloroethylene

    October 1, 2023 – December 31, 2023

    Resolved
  • Monitoring, Regular

    trans-1,2-Dichloroethylene

    October 1, 2023 – December 31, 2023

    Resolved
  • Monitoring, Regular

    1,2-Dichloroethane

    October 1, 2023 – December 31, 2023

    Resolved
  • Monitoring, Regular

    1,1,1-Trichloroethane

    October 1, 2023 – December 31, 2023

    Resolved
  • Monitoring, Regular

    Trichloroethylene

    October 1, 2023 – December 31, 2023

    Resolved
  • Monitoring, Regular

    Tetrachloroethylene

    October 1, 2023 – December 31, 2023

    Resolved
  • Monitoring, Regular

    CHLOROBENZENE

    October 1, 2023 – December 31, 2023

    Resolved
  • Monitoring, Regular

    Ethylbenzene

    October 1, 2023 – December 31, 2023

    Resolved
  • Monitoring, Regular

    o-Dichlorobenzene

    July 1, 2023 – September 30, 2023

    Resolved
  • Monitoring, Regular

    Styrene

    July 1, 2023 – September 30, 2023

    Resolved
  • Monitoring, Regular

    Toluene

    July 1, 2023 – September 30, 2023

    Resolved
  • Monitoring, Regular

    trans-1,2-Dichloroethylene

    July 1, 2023 – September 30, 2023

    Resolved
  • Monitoring, Regular

    Vinyl chloride

    July 1, 2023 – September 30, 2023

    Resolved
  • Monitoring and Reporting (DBP)

    Total Haloacetic Acids (HAA5)

    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)

    Chlorine

    July 1, 2022 – September 30, 2022

    Resolved
  • Consumer Confidence Report Complete Failure to Report

    Consumer Confidence Rule

    July 1, 2014 – July 2, 2015

    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, Repeat Major (TCR)

    Coliform (TCR)

    July 1, 2013 – July 31, 2013

    Resolved
  • Monitoring, Source Water (GWR)

    E. COLI

    June 1, 2013 – June 30, 2013

    Resolved
  • Monitoring, Source Water (GWR)

    E. COLI

    September 1, 2012 – September 30, 2012

    Resolved
  • Monitoring, Repeat Major (TCR)

    Coliform (TCR)

    August 1, 2012 – August 31, 2012

    Resolved
  • Monitoring, Source Water (GWR)

    E. COLI

    August 1, 2012 – August 31, 2012

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    February 1, 2012 – February 29, 2012

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    November 1, 2011 – November 30, 2011

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    May 1, 2011 – May 31, 2011

    Resolved
  • Monitoring, Regular

    Xylenes, Total

    January 1, 2011 – December 31, 2011

    Resolved
  • Monitoring, Regular

    Trichloroethylene

    January 1, 2011 – December 31, 2011

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    January 1, 2010 – January 31, 2010

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    October 1, 2009 – October 31, 2009

    Resolved
  • Initial Tap Sampling for Pb and Cu

    Lead and Copper Rule

    October 1, 2009 – July 12, 2013

    Resolved
  • Consumer Confidence Report Complete Failure to Report

    Consumer Confidence Rule

    July 1, 2009 – July 2, 2015

    Resolved
  • Monitoring and Reporting (DBP)

    Total Haloacetic Acids (HAA5)

    January 1, 2009 – December 31, 2011

    Resolved
  • Monitoring, Regular

    Arsenic

    January 1, 2008 – December 31, 2010

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    September 1, 2007 – September 30, 2007

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    June 1, 2007 – June 30, 2007

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    October 1, 2006 – October 31, 2006

    Resolved
  • Consumer Confidence Report Complete Failure to Report

    Consumer Confidence Rule

    July 1, 2006 – July 2, 2015

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    May 1, 2006 – May 31, 2006

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    November 1, 2004 – November 30, 2004

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    July 1, 2004 – July 31, 2004

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

    Lead and Copper Rule

    January 1, 2004 – June 20, 2005

    Resolved
  • Monitoring, Regular

    Trichloroethylene

    April 1, 2001 – June 30, 2001

    Resolved
  • Monitoring, Regular

    1,1,1-Trichloroethane

    April 1, 2001 – June 30, 2001

    Resolved
  • Monitoring, Regular

    Vinyl chloride

    April 1, 2001 – June 30, 2001

    Resolved
  • Monitoring, Regular

    Combined Radium (-226 and -228)

    January 1, 2001 – March 31, 2001

    Resolved

Archived closed in EPA's records (typically due to age or a data correction)Resolved addressed and confirmed by the state

Enforcement actions

Contact

HARPER COUNTY RWD #1

580-727-5754

BUFFALO, OK 73834