Is MAMMOTH CAVE/CENTRAL SYSTEM required to publish a Consumer Confidence Report?

Yes. MAMMOTH CAVE/CENTRAL SYSTEM 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 MAMMOTH CAVE/CENTRAL SYSTEM’s next Consumer Confidence Report due?

MAMMOTH CAVE/CENTRAL SYSTEM’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.

CAVE CITY, KY · Edmonson County

MAMMOTH CAVE/CENTRAL SYSTEM Water System

Consumer Confidence Report status

MAMMOTH CAVE/CENTRAL SYSTEM 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 MAMMOTH CAVE/CENTRAL SYSTEM.

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 Kentucky’s official records. Always confirm current status with Kentucky before making decisions based on this information.

System facts

System ID (PWSID): KY0310940
System type: Community Water System
Population served: 5,000
Service connections: 56
Ownership: federal government
Water source: surface water (rivers, lakes, or reservoirs)

MAMMOTH CAVE/CENTRAL SYSTEM is one of 150 community water systems in Kentucky in the 3,301 to 10,000 people size category, serving 5,000 people from surface water.

As of August 1, 2026, its federal record holds 15 entries between 1993 and 2017, all of which EPA lists as closed. Nothing has been added since 2017.

Of the 15, 10 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 Surface Water Treatment Rules, the Consumer Confidence Rule, and the Lead and Copper Rule.

Violation history

Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
January 1, 2017 – January 31, 2017
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
October 1, 2015 – October 31, 2015
Resolved
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
July 1, 2013 – November 3, 2014
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
July 1, 2013 – July 31, 2013
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
May 1, 2013 – May 31, 2013
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
December 1, 2012 – December 31, 2012
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
November 1, 2012 – November 30, 2012
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
September 1, 2012 – September 30, 2012
Resolved
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
October 1, 2008 – November 2, 2009
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
October 1, 2008 – April 8, 2010
Resolved
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
October 27, 2005 – July 13, 2006
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
October 10, 2004 – August 2, 2005
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
August 1, 2001 – August 31, 2001
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
October 19, 1999 – November 4, 1999
Resolved
Initial Tap Sampling for Pb and Cu
—
Lead and Copper Rule
January 1, 1993 – June 17, 1993
Resolved

Resolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
January 1, 2017 – January 31, 2017	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
October 1, 2015 – October 31, 2015	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
July 1, 2013 – November 3, 2014	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
July 1, 2013 – July 31, 2013	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
May 1, 2013 – May 31, 2013	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
December 1, 2012 – December 31, 2012	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
November 1, 2012 – November 30, 2012	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
September 1, 2012 – September 30, 2012	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
October 1, 2008 – November 2, 2009	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
October 1, 2008 – April 8, 2010	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
October 27, 2005 – July 13, 2006	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
October 10, 2004 – August 2, 2005	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
August 1, 2001 – August 31, 2001	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
October 19, 1999 – November 4, 1999	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
January 1, 1993 – June 17, 1993	Initial Tap Sampling for Pb and Cu	Lead and Copper Rule	—	Resolved

Resolved addressed and confirmed by the state

Enforcement actions

September 16, 2013State Formal Notice of Violation issued287 linked violations

Common questions

Is MAMMOTH CAVE/CENTRAL SYSTEM required to publish a Consumer Confidence Report?: Yes. MAMMOTH CAVE/CENTRAL SYSTEM 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 MAMMOTH CAVE/CENTRAL SYSTEM’s next Consumer Confidence Report due?: MAMMOTH CAVE/CENTRAL SYSTEM’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does MAMMOTH CAVE/CENTRAL SYSTEM have any open drinking water violations on record?: As of August 1, 2026, EPA's federal records show no open violations for MAMMOTH CAVE/CENTRAL SYSTEM.
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

SMITH, ANDREA R

270-261-1515

CAVE CITY, KY 42127