Public Water Partners

WISTER, OK · Le Flore County

LEFLORE CO. RWD #18 Water System

Consumer Confidence Report status

LEFLORE CO. RWD #18 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 no open violations for LEFLORE CO. RWD #18.

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)
OK3004009
System type
Community Water System
Population served
3,870
Service connections
1,624
Ownership
local government
Water source
surface water (rivers, lakes, or reservoirs)

LEFLORE CO. RWD #18 is one of 106 community water systems in Oklahoma in the 3,301 to 10,000 people size category, serving 3,870 people from surface water.

As of August 1, 2026, its federal record holds 12 entries between 1991 and 2025, all of which EPA lists as closed.

Of the 12, 5 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 Total Coliform Rules, and the Stage 1 Disinfectants and Disinfection Byproducts Rule.

Violation history

  • Maximum Contaminant Level Violation, Average

    Health-based

    Total Haloacetic Acids (HAA5)

    October 1, 2025 – December 31, 2025

    Resolved

  • Monitoring, Routine (RTCR)

    —

    Revised Total Coliform Rule

    October 1, 2025 – October 31, 2025

    Resolved

  • Monitoring and Reporting (DBP)

    —

    Chlorine

    October 1, 2025 – October 31, 2025

    Resolved

  • LSL Inventory

    Health-based

    LEAD AND COPPER RULE REVISIONS

    October 17, 2024 – January 30, 2026

    Resolved

  • Maximum Contaminant Level Violation, Average

    Health-based

    TTHM

    April 1, 2023 – June 30, 2023

    Resolved

  • Maximum Contaminant Level Violation, Average

    Health-based

    TTHM

    July 1, 2022 – September 30, 2022

    Resolved

  • Maximum Contaminant Level Violation, Average

    Health-based

    TTHM

    April 1, 2022 – June 30, 2022

    Resolved

  • Maximum Contaminant Level Violation, Average

    Health-based

    Total Haloacetic Acids (HAA5)

    October 1, 2019 – December 31, 2019

    Resolved

  • Maximum Contaminant Level Violation, Average

    Health-based

    Total Haloacetic Acids (HAA5)

    July 1, 2019 – September 30, 2019

    Resolved

  • Failure Submit IDSE/Subpart V Plan Rpt

    —

    TTHM

    April 1, 2018 – June 25, 2018

    Resolved

  • Monitoring, Routine (IDSE)

    —

    TTHM

    February 1, 2009 – April 30, 2009

    Resolved

  • Monitoring, Routine Major (TCR)

    —

    Coliform (TCR)

    May 1, 1991 – May 31, 1991

    Resolved

Resolved addressed and confirmed by the state

Enforcement actions

Common questions

Is LEFLORE CO. RWD #18 required to publish a Consumer Confidence Report?

Yes. LEFLORE CO. RWD #18 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 LEFLORE CO. RWD #18’s next Consumer Confidence Report due?

LEFLORE CO. RWD #18’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.

Does LEFLORE CO. RWD #18 have any open drinking water violations on record?

As of August 1, 2026, EPA's federal records show no open violations for LEFLORE CO. RWD #18.

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

LEFLORE CO. RWD #18

918-677-2360

WISTER, OK 74966