Texas
Wilson County drinking water quality
18 active public water systems serve 57,758 people in Wilson County. 3 are compliant, 15 had at least one EPA violation in the past three years, 0 are designated serious violators, and 0 carry a health flag.
Community water systems
16 systems, largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
SS WSC |
20,826 | 0 | 0 | |
|
City of Floresville |
8,306 | 4 | 2 | |
|
Oak Hills WSC |
6,225 | 1 | 0 | |
|
Sunko WSC |
5,064 | 0 | 0 | |
|
Picosa WSC |
3,210 | 2 | 1 | |
|
City of Poth |
2,994 | 5 | 0 | |
|
City of la Vernia |
2,526 | 5 | 0 | |
|
Eagle Creek Ranch |
2,409 | 2 | 2 | |
|
Three Oaks WSC |
2,007 | 1 | 0 | |
|
City of Stockdale |
1,201 | 2 | 0 | |
|
Creekwood Estates |
876 | 1 | 0 | |
|
C Willow Water |
855 | 3 | 0 | |
|
Shady Oaks Water |
432 | 5 | 0 | |
|
Hickory Hill Water |
342 | 7 | 0 | |
|
Seven Oaks Water Supply |
165 | 0 | 0 | |
|
Arrowhead Water System |
141 | 4 | 0 |
Non-community systems (2: schools, campgrounds, workplaces, restaurants)
These systems serve places people visit rather than homes.
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Vista Ridge |
154 | 2 | 0 | |
|
Reynolds Energy Transport |
25 | 1 | 0 |
Inactive systems (5, no longer operating or reporting)
Kept for the record and excluded from the county totals above. Browse inactive systems.
About this data
Totals cover active systems. Systems serving more than one county are counted in each county. EPA counts the rules a system was in violation of, not the individual violations; one rule can carry several.
Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The Texas records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet. Retrieved from ECHO on Oct 11, 2026.