All water systems in Texas
7,430 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Texas State University San Marcos Hays County |
43,552 | 1 | 0 | |
|
Town of Little Elm Denton County |
43,348 | 2 | 0 | |
|
City of Coppell Dallas County |
43,193 | 1 | 0 | |
|
City of Friendswood Galveston County |
43,190 | 0 | 0 | |
|
City of Rosenberg Fort Bend County |
43,158 | 2 | 0 | |
|
Town of Prosper Collin County |
42,598 | 0 | 0 | |
|
City of Schertz Guadalupe County |
41,948 | 2 | 0 | |
|
City of Copperas Cove Coryell County |
41,669 | 0 | 0 | |
|
Harris County MUD 165 Harris County |
40,503 | 0 | 0 | |
|
City of Hurst Tarrant County |
40,454 | 0 | 0 | |
|
City of Lancaster Dallas County |
40,449 | 2 | 1 | |
|
Walnut Creek SUD Parker County |
40,410 | 3 | 2 | |
|
City of Farmers Branch Dallas County |
40,246 | 0 | 0 | |
|
City of Weslaco Hidalgo County |
40,033 | 2 | 2 | |
|
Manville WSC Travis County |
39,648 | 3 | 1 | |
|
City of Duncanville Dallas County |
39,413 | 0 | 0 | |
|
Jbsa Sam Houston Bexar County |
37,563 | 1 | 0 | |
|
City of Princeton Collin County |
37,019 | 1 | 0 | |
|
City of Weatherford Parker County |
37,002 | 0 | 0 | |
|
Texarkana Water Utilities Bowie County |
37,000 | 1 | 0 | |
|
Paseo del Este MUD 1 El Paso County |
36,773 | 4 | 0 | |
|
City of la Porte Harris County |
36,569 | 1 | 0 | |
|
Del Rio Utilities Commission Val Verde County |
36,506 | 1 | 0 | |
|
City of Harker Heights Bell County |
35,957 | 0 | 0 | |
|
US Army South Fort Cavazos Bell County |
35,669 | 0 | 0 | |
|
West Travis County Public Utility Agency Travis County |
35,664 | 3 | 0 | |
|
Springs Hill SUD Guadalupe County |
35,541 | 4 | 2 | |
|
Goforth SUD Hays County |
34,893 | 3 | 0 | |
|
City of Deer Park Harris County |
34,495 | 0 | 0 | |
|
City of Cleburne Johnson County |
34,075 | 3 | 0 | |
|
City of Fulshear Fort Bend County |
34,000 | 2 | 1 | |
|
Bethesda WSC Johnson County |
33,441 | 2 | 0 | |
|
City of Greenville Hunt County |
33,354 | 3 | 0 | |
|
Sjwtx Triple Peak Plant Comal County |
32,973 | 2 | 0 | |
|
City of Seguin Guadalupe County |
32,736 | 1 | 0 | |
|
Benton City WSC Medina County |
32,000 | 0 | 0 | |
|
City of Southlake Tarrant County |
31,576 | 1 | 0 | |
|
Horizon Regional MUD El Paso County |
31,542 | 1 | 1 | |
|
Lumberton MUD Hardin County |
31,428 | 1 | 0 | |
|
City of Palestine Anderson County |
31,272 | 4 | 0 | |
|
City of Sachse Dallas County |
30,630 | 0 | 0 | |
|
City of Kerrville Kerr County |
30,530 | 3 | 0 | |
|
Galveston County Wcid 1 Galveston County |
30,399 | 2 | 1 | |
|
City of San Juan Hidalgo County |
30,000 | 1 | 0 | |
|
Jonah Water SUD Williamson County |
29,861 | 1 | 0 | |
|
City of Converse Bexar County |
29,709 | 0 | 0 | |
|
City of Forney Kaufman County |
29,692 | 1 | 0 | |
|
City of Hutto Williamson County |
29,580 | 0 | 0 | |
|
City of Fate Rockwall County |
29,285 | 1 | 0 | |
|
City of Balch Springs Dallas County |
28,300 | 2 | 0 |
About this data
Rules violated counts the rules a system was in violation of in the past three years, including monitoring and reporting lapses; one rule can carry several violations. Unresolved is the number of those rules still in violation at EPA's latest data refresh.
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.