McNairy County, Tennessee — public water systems
At a glance
5 active public water systems are filed under McNairy County, Tennessee in EPA's SDWIS records, together reporting 36,607 people served. The largest is Selmer Water System, which reports serving 20,648 people. All 5 are community water systems serving people where they live.
Dataset updated . Source: EPA SDWIS/ECHO, refreshed quarterly.
Active systems
5
Population served
36.6K
Community systems
5
Groundwater share
100%
How does McNairy County compare with other Tennessee counties?
McNairy County has the 93rd-most active public water systems among the 323 counties listed for active Tennessee systems in EPA records; among the 152 with 3 or more systems, the median has 6. Its systems report 36,607 people served in total, the 46th-largest county figure in the state and 0.5% of the statewide total. The average system here reports serving 7,321 people, about 27% above the Tennessee average of 5,780. 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 McNairy County's drinking water come from?
By primary water source, McNairy County's active systems draw on groundwater (4, 80%) and purchased groundwater (1, 20%). Overall, all rely mainly on groundwater (including purchased groundwater) and none on surface water, compared with 80% and 20% across Tennessee. Groundwater means the system draws its water from wells or springs fed by underground aquifers. The county's largest system, Selmer Water System, draws primarily on groundwater.
What kinds of water systems operate in McNairy County?
McNairy County's active systems break down as 5 community systems (100%). 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. EPA lists their owner types as local government (100%).
Water systems in McNairy County
🔒 Create a free account to export CSV| # | Water system | County | Population served | Type | Source |
|---|---|---|---|---|---|
| 1 | Selmer Water System | McNairy | 20,648 | Community | Groundwater |
| 2 | Adamsville Water System | McNairy | 9,985 | Community | Groundwater |
| 3 | Michie Water Dept | McNairy | 2,825 | Community | Groundwater |
| 4 | Eastview Utility District | McNairy | 2,205 | Community | Purchased groundwater |
| 5 | Bethel Springs Water System | McNairy | 944 | Community | Groundwater |
McNairy County water systems: frequently asked questions
How many public water systems are in McNairy County, Tennessee?
EPA's SDWIS records file 5 active public water systems under McNairy County, Tennessee: 5 community systems (100%).
Who supplies drinking water in McNairy County, TN?
The largest community water systems filed under McNairy County are Selmer Water System (20,648 people served), Adamsville Water System (9,985 people served) and Michie Water Dept (2,825 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 McNairy County's drinking water come from groundwater or surface water?
Of the 5 active public water systems in McNairy County, all draw mainly on groundwater and none on surface water, counting purchased supplies. The largest system, Selmer Water System, uses groundwater.
Where can I find a water quality report for McNairy 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. 5 community systems are filed under McNairy 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 McNairy 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 Tennessee 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 McNairy County, Tennessee”, https://aquacensus.com/water-systems/tennessee/mcnairy (data as of October 1, 2026).