Is LONE GROVE required to publish a Consumer Confidence Report?

Yes. LONE GROVE 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 LONE GROVE’s next Consumer Confidence Report due?

LONE GROVE’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.

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.

LONE GROVE, OK · Carter County

LONE GROVE Water System

Consumer Confidence Report status

LONE GROVE 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 2 items for LONE GROVE that are open and awaiting resolution. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings.

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): OK2001007
System type: Community Water System
Population served: 4,863
Service connections: 1,382
Ownership: local government
Water source: groundwater (wells)

LONE GROVE is one of 106 community water systems in Oklahoma in the 3,301 to 10,000 people size category, serving 4,863 people from groundwater.

As of August 1, 2026, its federal record holds 72 entries between 1994 and 2026, of which 2 remain open; none are health-based.

Of the 72, 66 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, the Total Coliform Rules, and the Stage 1 Disinfectants and Disinfection Byproducts Rule.

Violation history

Monitoring, Source Water (GWR)
—
E. COLI
February 17, 2026
Unaddressed
Monitoring, Source Water (GWR)
—
E. COLI
February 17, 2026
Unaddressed
LSL Reporting
—
LEAD AND COPPER RULE REVISIONS
October 17, 2024 – July 15, 2025
Resolved
LSL Inventory
Health-based
LEAD AND COPPER RULE REVISIONS
October 17, 2024 – July 15, 2025
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
September 1, 2023 – September 30, 2023
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
July 1, 2023 – September 30, 2023
Resolved
Monitoring, Regular
—
Glyphosate
July 1, 2023 – September 30, 2023
Resolved
Monitoring, Regular
—
Combined Uranium
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Combined Radium (-226 and -228)
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Gross Beta Particle Activity
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Endothall
January 1, 2019 – March 31, 2019
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
January 1, 2019 – March 31, 2019
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
October 1, 2018 – December 31, 2018
Archived
Monitoring and Reporting (DBP)
—
Chlorine
July 1, 2018 – September 30, 2018
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2016 – February 17, 2017
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
April 1, 2015 – June 30, 2015
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
April 1, 2015 – June 30, 2015
Resolved
Monitoring, Regular
—
Xylenes, Total
April 1, 2015 – June 30, 2015
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
April 1, 2015 – June 30, 2015
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
April 1, 2015 – June 30, 2015
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
April 1, 2015 – June 30, 2015
Resolved
Monitoring, Regular
—
Vinyl chloride
April 1, 2015 – June 30, 2015
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
April 1, 2015 – June 30, 2015
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
April 1, 2015 – June 30, 2015
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
April 1, 2015 – June 30, 2015
Resolved
Monitoring, Regular
—
Carbon tetrachloride
April 1, 2015 – June 30, 2015
Resolved
Monitoring, Regular
—
1,2-Dichloropropane
April 1, 2015 – June 30, 2015
Resolved
Monitoring, Regular
—
Trichloroethylene
April 1, 2015 – June 30, 2015
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
April 1, 2015 – June 30, 2015
Resolved
Monitoring, Regular
—
Tetrachloroethylene
April 1, 2015 – June 30, 2015
Resolved
Monitoring, Regular
—
CHLOROBENZENE
April 1, 2015 – June 30, 2015
Resolved
Monitoring, Regular
—
Benzene
April 1, 2015 – June 30, 2015
Resolved
Monitoring, Regular
—
Toluene
April 1, 2015 – June 30, 2015
Resolved
Monitoring, Regular
—
Ethylbenzene
April 1, 2015 – June 30, 2015
Resolved
Monitoring, Regular
—
Styrene
April 1, 2015 – June 30, 2015
Resolved
Monitoring and Reporting (DBP)
—
TTHM
March 1, 2015 – May 31, 2015
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2014 – April 2, 2015
Resolved
Monitoring and Reporting (DBP)
—
TTHM
December 1, 2013 – February 28, 2014
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
December 1, 2013 – February 28, 2014
Resolved
Monitoring, Repeat Major (TCR)
—
Coliform (TCR)
November 1, 2013 – November 30, 2013
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
November 1, 2013 – November 30, 2013
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
October 1, 2013 – October 31, 2013
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
May 1, 2013 – May 31, 2013
Resolved
Monitoring, Regular
—
Xylenes, Total
October 1, 2011 – December 31, 2011
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
October 1, 2011 – December 31, 2011
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
October 1, 2011 – December 31, 2011
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
October 1, 2011 – October 31, 2011
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
October 1, 2011 – December 31, 2011
Resolved
Monitoring, Regular
—
1,2-Dichloropropane
October 1, 2011 – December 31, 2011
Resolved
Monitoring, Regular
—
Trichloroethylene
October 1, 2011 – December 31, 2011
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
October 1, 2011 – December 31, 2011
Resolved
Monitoring, Regular
—
Tetrachloroethylene
October 1, 2011 – December 31, 2011
Resolved
Monitoring, Regular
—
CHLOROBENZENE
October 1, 2011 – December 31, 2011
Resolved
Monitoring, Regular
—
Benzene
October 1, 2011 – December 31, 2011
Resolved
Monitoring, Regular
—
Toluene
October 1, 2011 – December 31, 2011
Resolved
Monitoring, Regular
—
Ethylbenzene
October 1, 2011 – December 31, 2011
Resolved
Monitoring, Regular
—
Styrene
October 1, 2011 – December 31, 2011
Resolved
Monitoring, Regular
—
Carbon tetrachloride
October 1, 2011 – December 31, 2011
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
October 1, 2011 – December 31, 2011
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
October 1, 2011 – December 31, 2011
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
October 1, 2011 – December 31, 2011
Resolved
Monitoring, Regular
—
Vinyl chloride
October 1, 2011 – December 31, 2011
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
October 1, 2011 – December 31, 2011
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
October 1, 2011 – December 31, 2011
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
October 1, 2011 – December 31, 2011
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
February 1, 2011 – February 28, 2011
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
August 1, 2010 – August 31, 2010
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
June 1, 2010 – June 30, 2010
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
January 1, 2010 – October 22, 2010
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
November 1, 2008 – November 30, 2008
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
July 1, 1994 – July 31, 1994
Resolved

Unaddressed no corrective action on record yetResolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Period	Violation	Contaminant / rule	Health-based	Status
February 17, 2026	Monitoring, Source Water (GWR)	E. COLI	—	Unaddressed
February 17, 2026	Monitoring, Source Water (GWR)	E. COLI	—	Unaddressed
October 17, 2024 – July 15, 2025	LSL Reporting	LEAD AND COPPER RULE REVISIONS	—	Resolved
October 17, 2024 – July 15, 2025	LSL Inventory	LEAD AND COPPER RULE REVISIONS	Health-based	Resolved
September 1, 2023 – September 30, 2023	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
July 1, 2023 – September 30, 2023	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
July 1, 2023 – September 30, 2023	Monitoring, Regular	Glyphosate	—	Resolved
January 1, 2023 – December 31, 2025	Monitoring, Regular	Combined Uranium	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Combined Radium (-226 and -228)	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Gross Beta Particle Activity	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Archived
January 1, 2019 – March 31, 2019	Monitoring, Regular	Endothall	—	Resolved
January 1, 2019 – March 31, 2019	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
October 1, 2018 – December 31, 2018	Monitoring and Reporting (DBP)	Chlorine	—	Archived
July 1, 2018 – September 30, 2018	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
July 1, 2016 – February 17, 2017	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
April 1, 2015 – June 30, 2015	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
April 1, 2015 – June 30, 2015	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
April 1, 2015 – June 30, 2015	Monitoring, Regular	Xylenes, Total	—	Resolved
April 1, 2015 – June 30, 2015	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
April 1, 2015 – June 30, 2015	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
April 1, 2015 – June 30, 2015	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
April 1, 2015 – June 30, 2015	Monitoring, Regular	Vinyl chloride	—	Resolved
April 1, 2015 – June 30, 2015	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
April 1, 2015 – June 30, 2015	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
April 1, 2015 – June 30, 2015	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
April 1, 2015 – June 30, 2015	Monitoring, Regular	Carbon tetrachloride	—	Resolved
April 1, 2015 – June 30, 2015	Monitoring, Regular	1,2-Dichloropropane	—	Resolved
April 1, 2015 – June 30, 2015	Monitoring, Regular	Trichloroethylene	—	Resolved
April 1, 2015 – June 30, 2015	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
April 1, 2015 – June 30, 2015	Monitoring, Regular	Tetrachloroethylene	—	Resolved
April 1, 2015 – June 30, 2015	Monitoring, Regular	CHLOROBENZENE	—	Resolved
April 1, 2015 – June 30, 2015	Monitoring, Regular	Benzene	—	Resolved
April 1, 2015 – June 30, 2015	Monitoring, Regular	Toluene	—	Resolved
April 1, 2015 – June 30, 2015	Monitoring, Regular	Ethylbenzene	—	Resolved
April 1, 2015 – June 30, 2015	Monitoring, Regular	Styrene	—	Resolved
March 1, 2015 – May 31, 2015	Monitoring and Reporting (DBP)	TTHM	—	Resolved
July 1, 2014 – April 2, 2015	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
December 1, 2013 – February 28, 2014	Monitoring and Reporting (DBP)	TTHM	—	Resolved
December 1, 2013 – February 28, 2014	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
November 1, 2013 – November 30, 2013	Monitoring, Repeat Major (TCR)	Coliform (TCR)	—	Resolved
November 1, 2013 – November 30, 2013	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
October 1, 2013 – October 31, 2013	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
May 1, 2013 – May 31, 2013	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
October 1, 2011 – December 31, 2011	Monitoring, Regular	Xylenes, Total	—	Resolved
October 1, 2011 – December 31, 2011	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
October 1, 2011 – December 31, 2011	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
October 1, 2011 – October 31, 2011	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
October 1, 2011 – December 31, 2011	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
October 1, 2011 – December 31, 2011	Monitoring, Regular	1,2-Dichloropropane	—	Resolved
October 1, 2011 – December 31, 2011	Monitoring, Regular	Trichloroethylene	—	Resolved
October 1, 2011 – December 31, 2011	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
October 1, 2011 – December 31, 2011	Monitoring, Regular	Tetrachloroethylene	—	Resolved
October 1, 2011 – December 31, 2011	Monitoring, Regular	CHLOROBENZENE	—	Resolved
October 1, 2011 – December 31, 2011	Monitoring, Regular	Benzene	—	Resolved
October 1, 2011 – December 31, 2011	Monitoring, Regular	Toluene	—	Resolved
October 1, 2011 – December 31, 2011	Monitoring, Regular	Ethylbenzene	—	Resolved
October 1, 2011 – December 31, 2011	Monitoring, Regular	Styrene	—	Resolved
October 1, 2011 – December 31, 2011	Monitoring, Regular	Carbon tetrachloride	—	Resolved
October 1, 2011 – December 31, 2011	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
October 1, 2011 – December 31, 2011	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
October 1, 2011 – December 31, 2011	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
October 1, 2011 – December 31, 2011	Monitoring, Regular	Vinyl chloride	—	Resolved
October 1, 2011 – December 31, 2011	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
October 1, 2011 – December 31, 2011	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
October 1, 2011 – December 31, 2011	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
February 1, 2011 – February 28, 2011	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
August 1, 2010 – August 31, 2010	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
June 1, 2010 – June 30, 2010	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
January 1, 2010 – October 22, 2010	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
November 1, 2008 – November 30, 2008	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
July 1, 1994 – July 31, 1994	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved

Unaddressed no corrective action on record yetResolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

February 19, 2026State Public Notification requested16 linked violations
November 30, 2023State Violation/Reminder Notice33 linked violations
September 3, 2020State Public Notification received3 linked violations
June 4, 2019State Compliance achieved10 linked violations
December 14, 2018State Public Notification requested9 linked violations
August 4, 2016State Compliance achieved58 linked violations
January 10, 2014State Violation/Reminder Notice12 linked violations
December 1, 2008State Compliance achieved15 linked violations
October 20, 1995State Compliance achieved2 linked violations

Common questions

Is LONE GROVE required to publish a Consumer Confidence Report?: Yes. LONE GROVE 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 LONE GROVE’s next Consumer Confidence Report due?: LONE GROVE’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does LONE GROVE have any open drinking water violations on record?: As of August 1, 2026, EPA's federal records show 2 items for LONE GROVE that are open and awaiting resolution. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings.
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

LONE GROVE

580-657-3113

LONE GROVE, OK 73443