Public water system · KY0310940
ActiveMammoth Cave/Central System
At a glance
Mammoth Cave/Central System (PWSID KY0310940) is an active community water system in Edmonson County, Kentucky. It reports serving 5,000 people through 56 service connections. Its primary water source is purchased surface water, and EPA lists it as owned by the federal government. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in January 2017.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
5,000
Service connections
56
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does Mammoth Cave/Central System compare with other water systems in Edmonson County?
By EPA's size categories, Mammoth Cave/Central System is a medium system (3,301 to 10,000 people). Edmonson County has 3 active public water systems, and Mammoth Cave/Central System is the 2nd-largest of them by population served. Its population served is about 38% below the county average of 8,096 people per system, and accounts for 21% of the 24,289 people reported by systems filed under the county. Across Kentucky, the 437 active systems average 11,699 people each. Nationally, the average active community water system reports serving 6,703 people, so Mammoth Cave/Central System is about 25% below that figure.
What does “community water system” mean?
A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. Kentucky has 371 active community water systems, 85% of the state's 437 active systems. Purchased surface water means the system buys surface water from another public water system rather than drawing its own. 167 Kentucky systems (38%) list purchased surface water as their primary source.
Who owns and regulates Mammoth Cave/Central System?
EPA lists Mammoth Cave/Central System as owned by the federal government. The KY state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 1 of the 3 active systems in Edmonson County (33%) are also owned by the federal government.
Does Mammoth Cave/Central System have drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in January 2017. The violations listed here began between October 2004 and January 2017. By type: 9 monitoring and reporting and 3 public notice, recordkeeping or other. The contaminant or rule involved most often is Surface Water Treatment Rule (6 of them). EPA lists 12 as resolved. Resolved means at least one resolving action is on record: the system returned to compliance, the rule no longer applies, or no further action was needed.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2017-01-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36 | Surface Water Treatment Rulecode 0200 | No | Resolved |
| 2015-10-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2013-07-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36 | Surface Water Treatment Rulecode 0200 | No | Resolved |
| 2013-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2013-05-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36 | Surface Water Treatment Rulecode 0200 | No | Resolved |
| 2012-12-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36 | Surface Water Treatment Rulecode 0200 | No | Resolved |
| 2012-11-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36 | Surface Water Treatment Rulecode 0200 | No | Resolved |
| 2012-09-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36 | Surface Water Treatment Rulecode 0200 | No | Resolved |
| 2008-10-01 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2008-10-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2005-10-27 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2004-10-10 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
The 12 most recent violations in EPA's records, newest first.Labels and codes come from EPA's SDWIS reference tables. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found. "Health-based" marks violations of a legal limit or required treatment.
Mammoth Cave/Central System: frequently asked questions
Who runs Mammoth Cave/Central System?
Mammoth Cave/Central System (PWSID KY0310940) is a community water system owned by the federal government. It is regulated by the KY state drinking water program.
How many people does Mammoth Cave/Central System serve?
Mammoth Cave/Central System reports serving 5,000 people through 56 service connections in Edmonson County, Kentucky.
Where does Mammoth Cave/Central System get its water?
EPA SDWIS lists this system's primary water source as purchased surface water. Purchased surface water means the system buys surface water from another public water system rather than drawing its own.
Does Mammoth Cave/Central System have any drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in January 2017. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found.
Is Mammoth Cave/Central System's water safe to drink?
AquaCensus shows EPA compliance records, not current water test results, so it cannot say whether the water is safe at a given moment. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in January 2017. For current results, consult the system's annual water quality report, EPA ECHO, or the KY state drinking water program.
Where can I find Mammoth Cave/Central System's water quality report?
As a community water system, Mammoth Cave/Central System must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1 each year, covering the previous calendar year. The system can provide a copy on request.
Other water systems in Edmonson County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Edmonson Co Water District | Edmonson | 17,848 | Community | Surface water |
| Brownsville Municipal Water System | Edmonson | 1,441 | Community | Purchased surface water |
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About this data
Source: U.S. EPA Safe Drinking Water Information System (SDWIS) and SDWA violation records, via EPA ECHO, as published October 1, 2026 — AquaCensus refreshes it quarterly. See the methodology for how records are matched, cleaned and scored.
Cite as: AquaCensus, “Mammoth Cave/Central System, PWSID KY0310940, Kentucky”, https://aquacensus.com/water-systems/kentucky/mammoth-cave-central-system-ky0310940 (data as of October 1, 2026).