COUNTY WATER-SYSTEM LEDGER
Williamson, Tennessee
EPA’s September 2026 export lists 6 active community water systems serving Williamson, Tennessee, with 2 current-violation flags and 0 serious-violator flags among the covered systems.
Source: EPA SDWIS system-search export · Active community systems serving 2,500+ people · Snapshot 13 Sep 2026
01 / SYSTEMS
Water systems serving Williamson, Tennessee
EPA associates 6 covered systems with Williamson, Tennessee; their reported population-served values total 250,347 and may overlap.
Ordered by reported population served. Open any record for separate health, monitoring, notice, other, and serious-violator flags.
| Water system | Population served | Primary source | Current export status |
|---|---|---|---|
| Franklin Water DeptTN0000246 | 77,222 | Surface water | Other current violation flag |
| H.B.& T.S. Utility DistrictTN0000699 | 40,094 | Surface water purchased | Other current violation flag |
| Milcrofton Utility DistrictTN0000247 | 38,032 | Surface water purchased | No current violation flagged |
| Nolensville-College Grove U.D.TN0000511 | 34,159 | Surface water purchased | No current violation flagged |
| Brentwood Water DepartmentTN0000069 | 30,493 | Surface water purchased | No current violation flagged |
| Mallory Valley U.D.TN0000428 | 30,347 | Surface water purchased | No current violation flagged |
02 / SOURCE MIX
Primary water sources for Williamson, Tennessee
EPA classifies 6 systems serving Williamson, Tennessee across 2 primary-source categories; Surface water purchased is the largest category with 5 systems.
It is the sum of each listed system's reported population served, not a census estimate. Service areas can overlap and some systems list multiple cities or counties.