Public Water Partners

COLEMAN, OK · Johnston County

JOHNSTON CO RWS& SWMD #4 Water System

Consumer Confidence Report status

JOHNSTON CO RWS& SWMD #4 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 JOHNSTON CO RWS& SWMD #4.

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)
OK2003503
System type
Community Water System
Population served
600
Service connections
277
Ownership
local government
Water source
groundwater (wells)

JOHNSTON CO RWS& SWMD #4 is one of 511 community water systems in Oklahoma in the 501 to 3,300 people size category, serving 600 people from groundwater.

As of August 1, 2026, its federal record holds 45 entries between 1994 and 2017, all of which EPA lists as closed. Nothing has been added since 2017.

Of the 45, 43 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, inorganic chemicals, and the Total Coliform Rules.

Violation history

  • Monitoring, Regular

    DICHLOROMETHANE

    January 1, 2017 – December 31, 2022

    Resolved
  • Monitoring, Regular

    Styrene

    January 1, 2017 – December 31, 2022

    Resolved
  • Monitoring, Regular

    Ethylbenzene

    January 1, 2017 – December 31, 2022

    Resolved
  • Monitoring, Regular

    Toluene

    January 1, 2017 – December 31, 2022

    Resolved
  • Monitoring, Regular

    Tetrachloroethylene

    January 1, 2017 – December 31, 2022

    Resolved
  • Monitoring, Regular

    1,1,2-Trichloroethane

    January 1, 2017 – December 31, 2022

    Resolved
  • Monitoring, Regular

    1,2-Dichloropropane

    January 1, 2017 – December 31, 2022

    Resolved
  • Monitoring, Regular

    Carbon tetrachloride

    January 1, 2017 – December 31, 2022

    Resolved
  • Monitoring, Regular

    1,1,1-Trichloroethane

    January 1, 2017 – December 31, 2022

    Resolved
  • Monitoring, Regular

    1,2-Dichloroethane

    January 1, 2017 – December 31, 2022

    Resolved
  • Monitoring, Regular

    Vinyl chloride

    January 1, 2017 – December 31, 2022

    Resolved
  • Monitoring, Regular

    p-Dichlorobenzene

    January 1, 2017 – December 31, 2022

    Resolved
  • Monitoring, Source Water (GWR)

    E. COLI

    June 25, 2015 – July 3, 2019

    Resolved
  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    June 1, 2015 – June 30, 2015

    Resolved
  • Monitoring, Source Water (GWR)

    E. COLI

    May 28, 2015 – March 7, 2017

    Resolved
  • Monitoring, Source Water (GWR)

    E. COLI

    April 23, 2015 – March 7, 2017

    Resolved
  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    April 1, 2015 – April 30, 2015

    Resolved
  • Monitoring, Regular

    Cadmium

    January 1, 2014 – December 31, 2016

    Resolved
  • Monitoring, Regular

    Nitrate-Nitrite

    January 1, 2014 – December 31, 2014

    Resolved
  • Monitoring, Regular

    Barium

    January 1, 2014 – December 31, 2016

    Resolved
  • Monitoring, Regular

    Chromium

    January 1, 2014 – December 31, 2016

    Resolved
  • Monitoring, Regular

    Mercury

    January 1, 2014 – December 31, 2016

    Resolved
  • Monitoring, Regular

    Antimony, Total

    January 1, 2014 – December 31, 2016

    Resolved
  • Monitoring, Regular

    Beryllium, Total

    January 1, 2014 – December 31, 2016

    Resolved
  • Monitoring, Regular

    Antimony, Total

    January 1, 2011 – December 31, 2019

    Resolved
  • Monitoring, Regular

    Thallium, Total

    January 1, 2011 – December 31, 2019

    Resolved
  • Monitoring, Regular

    Beryllium, Total

    January 1, 2011 – December 31, 2019

    Resolved
  • Monitoring, Regular

    Cadmium

    January 1, 2011 – December 31, 2019

    Resolved
  • Monitoring, Regular

    Fluoride

    January 1, 2011 – December 31, 2019

    Resolved
  • Monitoring, Regular

    Nickel

    January 1, 2011 – December 31, 2019

    Resolved
  • Monitoring, Regular

    DICHLOROMETHANE

    October 1, 2009 – December 31, 2009

    Resolved
  • Monitoring, Regular

    p-Dichlorobenzene

    October 1, 2009 – December 31, 2009

    Resolved
  • Monitoring, Regular

    Ethylbenzene

    October 1, 2009 – December 31, 2009

    Resolved
  • Monitoring, Regular

    CHLOROBENZENE

    October 1, 2009 – December 31, 2009

    Resolved
  • Monitoring, Regular

    o-Dichlorobenzene

    October 1, 2009 – December 31, 2009

    Resolved
  • Monitoring, Regular

    Tetrachloroethylene

    October 1, 2009 – December 31, 2009

    Resolved
  • Monitoring, Regular

    1,1,2-Trichloroethane

    October 1, 2009 – December 31, 2009

    Resolved
  • Monitoring, Regular

    Carbon tetrachloride

    October 1, 2009 – December 31, 2009

    Resolved
  • Monitoring, Regular

    1,2-Dichloroethane

    October 1, 2009 – December 31, 2009

    Resolved
  • Monitoring, Regular

    trans-1,2-Dichloroethylene

    October 1, 2009 – December 31, 2009

    Resolved
  • Monitoring, Regular

    1,1-Dichloroethylene

    October 1, 2009 – December 31, 2009

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    August 1, 2004 – August 31, 2004

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    November 1, 2003 – November 30, 2003

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    December 1, 1997 – December 31, 1997

    Resolved
  • Initial Tap Sampling for Pb and Cu

    Lead and Copper Rule

    January 1, 1994 – June 28, 1994

    Resolved

Resolved addressed and confirmed by the state

Enforcement actions

Common questions

Is JOHNSTON CO RWS& SWMD #4 required to publish a Consumer Confidence Report?

Yes. JOHNSTON CO RWS& SWMD #4 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 JOHNSTON CO RWS& SWMD #4’s next Consumer Confidence Report due?

JOHNSTON CO RWS& SWMD #4’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.

Does JOHNSTON CO RWS& SWMD #4 have any open drinking water violations on record?

As of August 1, 2026, EPA's federal records show no open violations for JOHNSTON CO RWS& SWMD #4.

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

JOHNSTON CO RWS & SWMD #4

580-937-4700

COLEMAN, OK 73432-0068