All water systems in Texas
7,430 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
City of Cedar Park Williamson County |
86,939 | 0 | 0 | |
|
Aqua WSC Bastrop County |
86,325 | 5 | 1 | |
|
City of Baytown Harris County |
86,004 | 1 | 0 | |
|
Harlingen Water Works System Cameron County |
85,900 | 0 | 0 | |
|
City of Edinburg Hidalgo County |
85,224 | 3 | 0 | |
|
City of Longview Gregg County |
83,236 | 1 | 0 | |
|
City of Sugar Land Fort Bend County |
80,381 | 1 | 0 | |
|
City of Houston UD 5 Kingwood Harris County |
80,073 | 0 | 0 | |
|
Town of Flower Mound Denton County |
80,000 | 1 | 0 | |
|
City of Pharr Hidalgo County |
79,715 | 0 | 0 | |
|
City of Mission Hidalgo County |
77,058 | 2 | 0 | |
|
City of North Richland Hills Tarrant County |
74,859 | 0 | 0 | |
|
City of San Marcos Hays County |
72,970 | 1 | 0 | |
|
Southern Utilities Smith County |
69,735 | 2 | 1 | |
|
Sharyland WSC Hidalgo County |
68,562 | 0 | 0 | |
|
City of Rowlett Dallas County |
68,123 | 2 | 0 | |
|
City of Victoria Victoria County |
66,932 | 1 | 0 | |
|
Johnson County SUD Johnson County |
65,517 | 2 | 0 | |
|
City of Pflugerville Travis County |
63,464 | 3 | 0 | |
|
City of Euless Tarrant County |
61,601 | 0 | 0 | |
|
City of Texas City Galveston County |
61,541 | 3 | 0 | |
|
Lower Valley Water District El Paso County |
59,049 | 1 | 1 | |
|
Texas A&m University Main Campus Brazos County |
58,500 | 2 | 0 | |
|
City of Desoto Dallas County |
57,999 | 1 | 0 | |
|
City of Port Arthur Jefferson County |
56,039 | 2 | 0 | |
|
City of Rockwall Rockwall County |
55,250 | 0 | 0 | |
|
City of Eagle Pass Maverick County |
54,900 | 0 | 0 | |
|
Agua SUD Hidalgo County |
53,796 | 0 | 0 | |
|
City of Burleson Johnson County |
53,381 | 0 | 0 | |
|
City of Celina Collin County |
52,701 | 0 | 0 | |
|
Green Valley SUD Guadalupe County |
52,497 | 4 | 0 | |
|
City of Grapevine Tarrant County |
52,346 | 1 | 0 | |
|
City of Galveston Galveston County |
52,326 | 3 | 0 | |
|
City of Kyle Hays County |
52,000 | 0 | 0 | |
|
City of Lufkin Angelina County |
51,236 | 3 | 2 | |
|
City of Cedar Hill Dallas County |
50,904 | 2 | 1 | |
|
City of Waxahachie Ellis County |
50,814 | 1 | 0 | |
|
City of Nacogdoches Nacogdoches County |
50,226 | 3 | 0 | |
|
City of Bedford Tarrant County |
49,941 | 0 | 0 | |
|
Fort Bend County Wcid 2 Fort Bend County |
49,173 | 1 | 0 | |
|
City of Huntsville Walker County |
48,522 | 1 | 0 | |
|
City of Wylie Collin County |
48,393 | 0 | 0 | |
|
City of Haltom City Tarrant County |
47,014 | 1 | 1 | |
|
Laguna Madre Water District Cameron County |
46,674 | 1 | 0 | |
|
Rockett SUD Ellis County |
46,614 | 2 | 0 | |
|
City of Keller Tarrant County |
46,308 | 1 | 0 | |
|
City of the Colony Denton County |
45,367 | 0 | 0 | |
|
Travis County Wcid 17 Travis County |
45,165 | 0 | 0 | |
|
Clwsc Canyon Lake Shores Comal County |
44,196 | 6 | 0 | |
|
City of Sherman Grayson County |
43,645 | 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.