Trigg County, Kentucky — public water systems
At a glance
11 active public water systems are filed under Trigg County, Kentucky in EPA's SDWIS records, together reporting 20,836 people served. The largest is Barkley Lake Water District, which reports serving 14,284 people. 2 are community water systems serving people where they live; the other 9 are non-community systems, such as schools, workplaces, campgrounds and gas stations with their own supply.
Dataset updated . Source: EPA SDWIS/ECHO, refreshed quarterly.
Active systems
11
Population served
20.8K
Community systems
2
Groundwater share
81.8%
How does Trigg County compare with other Kentucky counties?
Trigg County has the 4th-most active public water systems among the 127 counties listed for active Kentucky systems in EPA records; among the 66 with 3 or more systems, the median has 4. Its systems report 20,836 people served in total, the 66th-largest county figure in the state and 0.4% of the statewide total. The average system here reports serving 1,894 people, well below the Kentucky average of 11,699. Population figures are what each system reports; people served by more than one system, such as a wholesaler and the town that buys from it, are counted by each.
Where does Trigg County's drinking water come from?
By primary water source, Trigg County's active systems draw on groundwater (9, 82%) and surface water (2, 18%). Overall, 82% rely mainly on groundwater (including purchased groundwater) and 18% on surface water, compared with 31% and 69% across Kentucky. Groundwater means the system draws its water from wells or springs fed by underground aquifers. The county's largest system, Barkley Lake Water District, draws primarily on surface water.
What kinds of water systems operate in Trigg County?
Trigg County's active systems break down as 2 community systems (18%), 1 non-transient non-community systems (9.1%) and 8 transient non-community systems (73%). 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. A non-transient non-community water system regularly serves at least 25 of the same people for more than six months a year, but not where they live. Schools, factories, office buildings and hospitals with their own supply are typical examples. A transient non-community water system serves places where people do not stay long, such as gas stations and campgrounds, and regularly serves at least 25 people a day for at least 60 days a year. EPA lists their owner types as federal government (73%), local government (18%) and private (9.1%).
Water systems in Trigg County
🔒 Create a free account to export CSV| # | Water system | County | Population served | Type | Source |
|---|---|---|---|---|---|
| 1 | Barkley Lake Water District | Trigg | 14,284 | Community | Surface water |
| 2 | Cadiz Municipal Water Co | Trigg | 6,165 | Community | Surface water |
| 3 | Lbl Maintenance Center | Trigg | 170 | Non-transient non-community | Groundwater |
| 4 | Lbl Hillman Ferry A, B & C | Trigg | 42 | Transient non-community | Groundwater |
| 5 | Lbl Fenton Lake Access | Trigg | 25 | Transient non-community | Groundwater |
| 6 | Lbl Cravens Bay | Trigg | 25 | Transient non-community | Groundwater |
| 7 | Lbl Off Hwy Vehicle Area | Trigg | 25 | Transient non-community | Groundwater |
| 8 | Lbl Woodland Nature Center | Trigg | 25 | Transient non-community | Groundwater |
| 9 | Lbl North Entrance Station | Trigg | 25 | Transient non-community | Groundwater |
| 10 | Lbl Camp Energy | Trigg | 25 | Transient non-community | Groundwater |
| 11 | Lbl Wranglers Camp | Trigg | 25 | Transient non-community | Groundwater |
Trigg County water systems: frequently asked questions
How many public water systems are in Trigg County, Kentucky?
EPA's SDWIS records file 11 active public water systems under Trigg County, Kentucky: 2 community systems (18%), 1 non-transient non-community systems (9.1%) and 8 transient non-community systems (73%).
Who supplies drinking water in Trigg County, KY?
The largest community water systems filed under Trigg County are Barkley Lake Water District (14,284 people served) and Cadiz Municipal Water Co (6,165 people served). Which system serves a particular address depends on its service area, which EPA's SDWIS records do not include; a water bill or the local utility can confirm it.
Does Trigg County's drinking water come from groundwater or surface water?
Of the 11 active public water systems in Trigg County, 82% draw mainly on groundwater and 18% on surface water, counting purchased supplies. The largest system, Barkley Lake Water District, uses surface water.
Where can I find a water quality report for Trigg County?
Each community water system must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1, covering the previous calendar year. 2 community systems are filed under Trigg County, so the report to look for is the one from the system that supplies your address.
How can I check violations for a water system in Trigg County?
Open the system's profile from the list on this page. Each profile shows the most recent Safe Drinking Water Act violations in EPA's records, with plain-English labels and whether each one is resolved. For current compliance status, EPA ECHO is the primary source.
More Kentucky water systems
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, “Public water systems in Trigg County, Kentucky”, https://aquacensus.com/water-systems/kentucky/trigg (data as of October 1, 2026).