Texas
Guadalupe County drinking water quality
18 active public water systems serve 207,537 people in Guadalupe County. 5 are compliant, 13 had at least one EPA violation in the past three years, 1 is a designated serious violator, and 1 carries a health flag.
Needs attention
Community water systems
16 systems, largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Green Valley SUD |
52,497 | 4 | 0 | |
|
City of Schertz |
41,948 | 2 | 0 | |
|
Springs Hill SUD |
35,541 | 4 | 2 | |
|
City of Seguin |
32,736 | 1 | 0 | |
|
Crystal Clear SUD |
20,766 | 2 | 0 | |
|
City of Cibolo |
20,331 | 1 | 0 | |
|
City of Marion |
1,971 | 2 | 1 | |
|
Oak Hills Ranch Water |
624 | 5 | 0 | |
|
Pecan Grove Mobile Home Park |
467 | 1 | 0 | |
|
Garden Oaks |
309 | 0 | 0 | |
|
Shady Meadows Mobile Home Park |
64 | 8 | 1 | |
|
Lago Vista Water System |
54 | 5 | 1 | |
|
Memory Lane MHP |
30 | 7 | 4 | |
|
Crwa Lake Dunlap Wtp |
14 | 0 | 0 | |
|
Crwa Wells Ranch |
0 | 0 | 0 | |
|
Schertz Seguin Local Government |
0 | 1 | 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 |
|---|---|---|---|---|
|
John B Sanfilippo & Son |
160 | 0 | 0 | |
|
Atlas Base Camp Equipment & Logistics |
25 | 0 | 0 |
Inactive systems (15, 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.