Drinking Water Compliance OS

SHIDLER, OK · Osage County

OSAGE CO RWD #21 Water System

Current status

1 open health-based violation on record as of July 4, 2026, alongside 2 other open item(s). See the violation history below for contaminant and status details.

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)
OK2003616
System type
Community Water System
Population served
1,500
Service connections
566
Ownership
local government
Water source
surface water (rivers, lakes, or reservoirs)

Violation history

  • Monitoring, Turbidity (Enhanced SWTR)

    Interim Enhanced Surface Water Treatment Rule

    November 1, 2025 – November 30, 2025

    Archived
  • Monitoring, Turbidity (Enhanced SWTR)

    Interim Enhanced Surface Water Treatment Rule

    October 1, 2025 – October 31, 2025

    Archived
  • Monitoring, Turbidity (Enhanced SWTR)

    Interim Enhanced Surface Water Treatment Rule

    September 1, 2025 – September 30, 2025

    Archived
  • Monitoring, Turbidity (Enhanced SWTR)

    Interim Enhanced Surface Water Treatment Rule

    August 1, 2025 – August 31, 2025

    Archived
  • Consumer Confidence Report Complete Failure to Report

    Consumer Confidence Rule

    July 1, 2025

    Unaddressed
  • Monitoring, Turbidity (Enhanced SWTR)

    Interim Enhanced Surface Water Treatment Rule

    July 1, 2025 – July 31, 2025

    Archived
  • Monitoring, Turbidity (Enhanced SWTR)

    Interim Enhanced Surface Water Treatment Rule

    June 1, 2025 – June 30, 2025

    Archived
  • Monitoring, Turbidity (Enhanced SWTR)

    Interim Enhanced Surface Water Treatment Rule

    May 1, 2025 – May 31, 2025

    Archived
  • Monitoring, Turbidity (Enhanced SWTR)

    Interim Enhanced Surface Water Treatment Rule

    April 1, 2025 – April 30, 2025

    Archived
  • Monitoring and Reporting (DBP)

    Chlorine

    April 1, 2025 – April 30, 2025

    Resolved
  • Monitoring and Reporting (DBP)

    Chlorine

    February 1, 2025 – February 28, 2025

    Resolved
  • Monitoring, Turbidity (Enhanced SWTR)

    Interim Enhanced Surface Water Treatment Rule

    February 1, 2025 – February 28, 2025

    Archived
  • LSL Reporting

    LEAD AND COPPER RULE REVISIONS

    October 17, 2024

    Addressed
  • LSL Inventory

    Health-based

    LEAD AND COPPER RULE REVISIONS

    October 17, 2024

    Addressed
  • Monitoring, Turbidity (Enhanced SWTR)

    Interim Enhanced Surface Water Treatment Rule

    October 1, 2024 – October 31, 2024

    Archived
  • Monitoring, Routine (RTCR)

    Revised Total Coliform Rule

    September 1, 2024 – September 30, 2024

    Resolved
  • Monitoring, Turbidity (Enhanced SWTR)

    Interim Enhanced Surface Water Treatment Rule

    August 1, 2024 – August 31, 2024

    Archived
  • Monitoring and Reporting (DBP)

    Chlorine

    August 1, 2024 – August 31, 2024

    Resolved
  • Monitoring, Turbidity (Enhanced SWTR)

    Interim Enhanced Surface Water Treatment Rule

    June 1, 2024 – June 30, 2024

    Archived
  • Monitoring, Turbidity (Enhanced SWTR)

    Interim Enhanced Surface Water Treatment Rule

    May 1, 2024 – May 31, 2024

    Archived
  • Monitoring, Routine (RTCR)

    Revised Total Coliform Rule

    May 1, 2024 – May 31, 2024

    Resolved
  • Monitoring, Turbidity (Enhanced SWTR)

    Interim Enhanced Surface Water Treatment Rule

    April 1, 2024 – April 30, 2024

    Archived
  • Monitoring, Routine (RTCR)

    Revised Total Coliform Rule

    April 1, 2024 – April 30, 2024

    Resolved
  • Monitoring and Reporting (DBP)

    Chlorine

    April 1, 2024 – June 30, 2024

    Resolved
  • Monitoring and Reporting (DBP)

    Chlorine

    April 1, 2024 – June 30, 2024

    Resolved
  • Monitoring, Turbidity (Enhanced SWTR)

    Interim Enhanced Surface Water Treatment Rule

    March 1, 2024 – March 31, 2024

    Archived
  • Monitoring, Turbidity (Enhanced SWTR)

    Interim Enhanced Surface Water Treatment Rule

    February 1, 2024 – February 29, 2024

    Archived
  • Monitoring, Routine (RTCR)

    Revised Total Coliform Rule

    January 1, 2024 – January 31, 2024

    Resolved
  • Monitoring, Turbidity (Enhanced SWTR)

    Interim Enhanced Surface Water Treatment Rule

    October 1, 2023 – October 31, 2023

    Archived
  • Monitoring, Turbidity (Enhanced SWTR)

    Interim Enhanced Surface Water Treatment Rule

    July 1, 2023 – July 31, 2023

    Archived
  • Monitoring and Reporting (DBP)

    Chlorine

    April 1, 2023 – June 30, 2023

    Resolved
  • Monitoring, Turbidity (Enhanced SWTR)

    Interim Enhanced Surface Water Treatment Rule

    April 1, 2023 – April 30, 2023

    Archived
  • Monitoring, Turbidity (Enhanced SWTR)

    Interim Enhanced Surface Water Treatment Rule

    March 1, 2023 – March 31, 2023

    Archived
  • Monitoring, Turbidity (Enhanced SWTR)

    Interim Enhanced Surface Water Treatment Rule

    January 1, 2023 – January 31, 2023

    Archived
  • Monitoring, Turbidity (Enhanced SWTR)

    Interim Enhanced Surface Water Treatment Rule

    December 1, 2022 – December 31, 2022

    Archived
  • Monitoring, Turbidity (Enhanced SWTR)

    Interim Enhanced Surface Water Treatment Rule

    November 1, 2022 – November 30, 2022

    Archived
  • Monitoring, Regular

    Arsenic

    October 1, 2022 – December 31, 2022

    Resolved
  • Monitoring, Turbidity (Enhanced SWTR)

    Interim Enhanced Surface Water Treatment Rule

    October 1, 2022 – October 31, 2022

    Archived
  • Monitoring, Turbidity (Enhanced SWTR)

    Interim Enhanced Surface Water Treatment Rule

    September 1, 2022 – September 30, 2022

    Archived
  • Monitoring and Reporting (DBP)

    TTHM

    August 1, 2022 – July 31, 2023

    Resolved
  • Monitoring and Reporting (DBP)

    Total Haloacetic Acids (HAA5)

    August 1, 2022 – July 31, 2023

    Resolved
  • Monitoring, Turbidity (Enhanced SWTR)

    Interim Enhanced Surface Water Treatment Rule

    July 1, 2022 – July 31, 2022

    Resolved
  • Monitoring and Reporting (DBP)

    Chlorine

    July 1, 2022 – September 30, 2022

    Resolved
  • Monitoring, Turbidity (Enhanced SWTR)

    Interim Enhanced Surface Water Treatment Rule

    May 1, 2022 – May 31, 2022

    Resolved
  • Monitoring, Regular

    Arsenic

    April 1, 2022 – June 30, 2022

    Resolved
  • Monitoring and Reporting (DBP)

    Chlorine

    April 1, 2022 – June 30, 2022

    Resolved
  • Monitoring, Turbidity (Enhanced SWTR)

    Interim Enhanced Surface Water Treatment Rule

    April 1, 2022 – April 30, 2022

    Resolved
  • Monitoring, Turbidity (Enhanced SWTR)

    Interim Enhanced Surface Water Treatment Rule

    January 1, 2022 – January 31, 2022

    Resolved
  • Monitoring, Turbidity (Enhanced SWTR)

    Interim Enhanced Surface Water Treatment Rule

    December 1, 2021 – December 31, 2021

    Resolved
  • Monitoring, Routine (RTCR)

    Revised Total Coliform Rule

    December 1, 2021 – December 31, 2021

    Resolved
  • Monitoring, Routine (RTCR)

    Revised Total Coliform Rule

    November 1, 2021 – November 30, 2021

    Resolved
  • Monitoring, Regular

    Arsenic

    October 1, 2021 – December 31, 2021

    Resolved
  • Monitoring, Routine (RTCR)

    Revised Total Coliform Rule

    October 1, 2021 – October 31, 2021

    Resolved
  • Monitoring, Turbidity (Enhanced SWTR)

    Interim Enhanced Surface Water Treatment Rule

    October 1, 2021 – October 31, 2021

    Resolved
  • Monitoring, Turbidity (Enhanced SWTR)

    Interim Enhanced Surface Water Treatment Rule

    July 1, 2021 – July 31, 2021

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    June 28, 2021 – January 6, 2023

    Resolved
  • Monitoring, Turbidity (Enhanced SWTR)

    Interim Enhanced Surface Water Treatment Rule

    June 1, 2021 – June 30, 2021

    Resolved
  • Monitoring, Routine (RTCR)

    Revised Total Coliform Rule

    May 1, 2021 – May 31, 2021

    Resolved
  • Monitoring and Reporting (DBP)

    Chlorine

    April 1, 2021 – June 30, 2021

    Resolved
  • Monitoring and Reporting (DBP)

    Chlorine

    April 1, 2021 – June 30, 2021

    Resolved
  • Monitoring, Regular

    Nitrate-Nitrite

    January 1, 2021 – December 31, 2021

    Resolved
  • Monitoring, Turbidity (Enhanced SWTR)

    Interim Enhanced Surface Water Treatment Rule

    January 1, 2020 – January 31, 2020

    Resolved
  • Monitoring, Regular

    Glyphosate

    July 1, 2019 – September 30, 2019

    Resolved
  • Initial Tap Sampling for Pb and Cu

    Lead and Copper Rule

    October 1, 2009 – August 11, 2010

    Resolved
  • Monitoring, Routine (IDSE)

    Total Haloacetic Acids (HAA5)

    April 1, 2009 – June 30, 2009

    Resolved
  • Monitoring, Routine (IDSE)

    TTHM

    April 1, 2009 – June 30, 2009

    Resolved
  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    September 1, 1992 – September 30, 1992

    Resolved

Archived closed in EPA's records (typically due to age or a data correction)Unaddressed no corrective action on record yetResolved addressed and confirmed by the stateAddressed corrective action reported, pending final confirmation

Enforcement actions

Contact

OSAGE CO RWD #21

918-433-2225

SHIDLER, OK 74652