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
ResolvedMonitoring, Regular
—Styrene
January 1, 2017 – December 31, 2022
ResolvedMonitoring, Regular
—Ethylbenzene
January 1, 2017 – December 31, 2022
ResolvedMonitoring, Regular
—Toluene
January 1, 2017 – December 31, 2022
ResolvedMonitoring, Regular
—Tetrachloroethylene
January 1, 2017 – December 31, 2022
ResolvedMonitoring, Regular
—1,1,2-Trichloroethane
January 1, 2017 – December 31, 2022
ResolvedMonitoring, Regular
—1,2-Dichloropropane
January 1, 2017 – December 31, 2022
ResolvedMonitoring, Regular
—Carbon tetrachloride
January 1, 2017 – December 31, 2022
ResolvedMonitoring, Regular
—1,1,1-Trichloroethane
January 1, 2017 – December 31, 2022
ResolvedMonitoring, Regular
—1,2-Dichloroethane
January 1, 2017 – December 31, 2022
ResolvedMonitoring, Regular
—Vinyl chloride
January 1, 2017 – December 31, 2022
ResolvedMonitoring, Regular
—p-Dichlorobenzene
January 1, 2017 – December 31, 2022
ResolvedMonitoring, Source Water (GWR)
—E. COLI
June 25, 2015 – July 3, 2019
ResolvedMaximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
June 1, 2015 – June 30, 2015
ResolvedMonitoring, Source Water (GWR)
—E. COLI
May 28, 2015 – March 7, 2017
ResolvedMonitoring, Source Water (GWR)
—E. COLI
April 23, 2015 – March 7, 2017
ResolvedMaximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
April 1, 2015 – April 30, 2015
ResolvedMonitoring, Regular
—Cadmium
January 1, 2014 – December 31, 2016
ResolvedMonitoring, Regular
—Nitrate-Nitrite
January 1, 2014 – December 31, 2014
ResolvedMonitoring, Regular
—Barium
January 1, 2014 – December 31, 2016
ResolvedMonitoring, Regular
—Chromium
January 1, 2014 – December 31, 2016
ResolvedMonitoring, Regular
—Mercury
January 1, 2014 – December 31, 2016
ResolvedMonitoring, Regular
—Antimony, Total
January 1, 2014 – December 31, 2016
ResolvedMonitoring, Regular
—Beryllium, Total
January 1, 2014 – December 31, 2016
ResolvedMonitoring, Regular
—Antimony, Total
January 1, 2011 – December 31, 2019
ResolvedMonitoring, Regular
—Thallium, Total
January 1, 2011 – December 31, 2019
ResolvedMonitoring, Regular
—Beryllium, Total
January 1, 2011 – December 31, 2019
ResolvedMonitoring, Regular
—Cadmium
January 1, 2011 – December 31, 2019
ResolvedMonitoring, Regular
—Fluoride
January 1, 2011 – December 31, 2019
ResolvedMonitoring, Regular
—Nickel
January 1, 2011 – December 31, 2019
ResolvedMonitoring, Regular
—DICHLOROMETHANE
October 1, 2009 – December 31, 2009
ResolvedMonitoring, Regular
—p-Dichlorobenzene
October 1, 2009 – December 31, 2009
ResolvedMonitoring, Regular
—Ethylbenzene
October 1, 2009 – December 31, 2009
ResolvedMonitoring, Regular
—CHLOROBENZENE
October 1, 2009 – December 31, 2009
ResolvedMonitoring, Regular
—o-Dichlorobenzene
October 1, 2009 – December 31, 2009
ResolvedMonitoring, Regular
—Tetrachloroethylene
October 1, 2009 – December 31, 2009
ResolvedMonitoring, Regular
—1,1,2-Trichloroethane
October 1, 2009 – December 31, 2009
ResolvedMonitoring, Regular
—Carbon tetrachloride
October 1, 2009 – December 31, 2009
ResolvedMonitoring, Regular
—1,2-Dichloroethane
October 1, 2009 – December 31, 2009
ResolvedMonitoring, Regular
—trans-1,2-Dichloroethylene
October 1, 2009 – December 31, 2009
ResolvedMonitoring, Regular
—1,1-Dichloroethylene
October 1, 2009 – December 31, 2009
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
August 1, 2004 – August 31, 2004
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
November 1, 2003 – November 30, 2003
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
December 1, 1997 – December 31, 1997
ResolvedInitial Tap Sampling for Pb and Cu
—Lead and Copper Rule
January 1, 1994 – June 28, 1994
Resolved
Resolved addressed and confirmed by the state
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| January 1, 2017 – December 31, 2022 | Monitoring, Regular | DICHLOROMETHANE | — | Resolved |
| January 1, 2017 – December 31, 2022 | Monitoring, Regular | Styrene | — | Resolved |
| January 1, 2017 – December 31, 2022 | Monitoring, Regular | Ethylbenzene | — | Resolved |
| January 1, 2017 – December 31, 2022 | Monitoring, Regular | Toluene | — | Resolved |
| January 1, 2017 – December 31, 2022 | Monitoring, Regular | Tetrachloroethylene | — | Resolved |
| January 1, 2017 – December 31, 2022 | Monitoring, Regular | 1,1,2-Trichloroethane | — | Resolved |
| January 1, 2017 – December 31, 2022 | Monitoring, Regular | 1,2-Dichloropropane | — | Resolved |
| January 1, 2017 – December 31, 2022 | Monitoring, Regular | Carbon tetrachloride | — | Resolved |
| January 1, 2017 – December 31, 2022 | Monitoring, Regular | 1,1,1-Trichloroethane | — | Resolved |
| January 1, 2017 – December 31, 2022 | Monitoring, Regular | 1,2-Dichloroethane | — | Resolved |
| January 1, 2017 – December 31, 2022 | Monitoring, Regular | Vinyl chloride | — | Resolved |
| January 1, 2017 – December 31, 2022 | Monitoring, Regular | p-Dichlorobenzene | — | Resolved |
| June 25, 2015 – July 3, 2019 | Monitoring, Source Water (GWR) | E. COLI | — | Resolved |
| June 1, 2015 – June 30, 2015 | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Health-based | Resolved |
| May 28, 2015 – March 7, 2017 | Monitoring, Source Water (GWR) | E. COLI | — | Resolved |
| April 23, 2015 – March 7, 2017 | Monitoring, Source Water (GWR) | E. COLI | — | Resolved |
| April 1, 2015 – April 30, 2015 | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Health-based | Resolved |
| January 1, 2014 – December 31, 2016 | Monitoring, Regular | Cadmium | — | Resolved |
| January 1, 2014 – December 31, 2014 | Monitoring, Regular | Nitrate-Nitrite | — | Resolved |
| January 1, 2014 – December 31, 2016 | Monitoring, Regular | Barium | — | Resolved |
| January 1, 2014 – December 31, 2016 | Monitoring, Regular | Chromium | — | Resolved |
| January 1, 2014 – December 31, 2016 | Monitoring, Regular | Mercury | — | Resolved |
| January 1, 2014 – December 31, 2016 | Monitoring, Regular | Antimony, Total | — | Resolved |
| January 1, 2014 – December 31, 2016 | Monitoring, Regular | Beryllium, Total | — | Resolved |
| January 1, 2011 – December 31, 2019 | Monitoring, Regular | Antimony, Total | — | Resolved |
| January 1, 2011 – December 31, 2019 | Monitoring, Regular | Thallium, Total | — | Resolved |
| January 1, 2011 – December 31, 2019 | Monitoring, Regular | Beryllium, Total | — | Resolved |
| January 1, 2011 – December 31, 2019 | Monitoring, Regular | Cadmium | — | Resolved |
| January 1, 2011 – December 31, 2019 | Monitoring, Regular | Fluoride | — | Resolved |
| January 1, 2011 – December 31, 2019 | Monitoring, Regular | Nickel | — | Resolved |
| October 1, 2009 – December 31, 2009 | Monitoring, Regular | DICHLOROMETHANE | — | Resolved |
| October 1, 2009 – December 31, 2009 | Monitoring, Regular | p-Dichlorobenzene | — | Resolved |
| October 1, 2009 – December 31, 2009 | Monitoring, Regular | Ethylbenzene | — | Resolved |
| October 1, 2009 – December 31, 2009 | Monitoring, Regular | CHLOROBENZENE | — | Resolved |
| October 1, 2009 – December 31, 2009 | Monitoring, Regular | o-Dichlorobenzene | — | Resolved |
| October 1, 2009 – December 31, 2009 | Monitoring, Regular | Tetrachloroethylene | — | Resolved |
| October 1, 2009 – December 31, 2009 | Monitoring, Regular | 1,1,2-Trichloroethane | — | Resolved |
| October 1, 2009 – December 31, 2009 | Monitoring, Regular | Carbon tetrachloride | — | Resolved |
| October 1, 2009 – December 31, 2009 | Monitoring, Regular | 1,2-Dichloroethane | — | Resolved |
| October 1, 2009 – December 31, 2009 | Monitoring, Regular | trans-1,2-Dichloroethylene | — | Resolved |
| October 1, 2009 – December 31, 2009 | Monitoring, Regular | 1,1-Dichloroethylene | — | Resolved |
| August 1, 2004 – August 31, 2004 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Resolved |
| November 1, 2003 – November 30, 2003 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Resolved |
| December 1, 1997 – December 31, 1997 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Resolved |
| January 1, 1994 – June 28, 1994 | Initial Tap Sampling for Pb and Cu | Lead and Copper Rule | — | Resolved |
Resolved addressed and confirmed by the state
Enforcement actions
- November 7, 2023State Compliance achieved3 linked violations
- September 22, 2023State Violation/Reminder Notice4 linked violations
- March 14, 2023State Public Notification requested22 linked violations
- March 14, 2023State Violation/Reminder Notice22 linked violations
- March 6, 2021State Public Notification received4 linked violations
- March 6, 2021State Public Notification received3 linked violations
- December 16, 2019State Public Notification received3 linked violations
- December 16, 2019State Public Notification received24 linked violations
- December 16, 2019State Public Notification received4 linked violations
- December 16, 2019State Public Notification received3 linked violations
- March 7, 2017State Compliance achieved9 linked violations
- August 4, 2016State Compliance achieved7 linked violations
- August 4, 2016State Compliance achieved6 linked violations
- March 18, 2016State Public Notification requested7 linked violations
- July 7, 2015State Violation/Reminder Notice4 linked violations
- June 30, 2015State Compliance achieved6 linked violations
- April 30, 2015State Compliance achieved3 linked violations
- November 14, 2013State Violation/Reminder Notice5 linked violations
- August 9, 2010State Compliance achieved21 linked violations
- January 27, 2010State Violation/Reminder Notice4 linked violations
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