All water systems in Texas
7,430 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Harris County MUD 238 Harris County |
7,773 | 0 | 0 | |
|
Northwest Harris County MUD 12 Harris County |
7,764 | 1 | 0 | |
|
City of Crockett Houston County |
7,755 | 4 | 0 | |
|
North Hardin WSC Hardin County |
7,755 | 0 | 0 | |
|
Tbcd West Treatment Plant Chambers County |
7,695 | 1 | 0 | |
|
City of River Oaks Tarrant County |
7,691 | 1 | 0 | |
|
Northwest Harris County MUD 10 Harris County |
7,671 | 0 | 0 | |
|
City of Kennedale Tarrant County |
7,670 | 2 | 1 | |
|
Fouke WSC Wood County |
7,668 | 1 | 0 | |
|
Weston MUD Harris County |
7,647 | 0 | 0 | |
|
Montgomery County MUD 18 Montgomery County |
7,608 | 0 | 0 | |
|
City of Richwood Brazoria County |
7,605 | 3 | 0 | |
|
Zephyr WSC Brown County |
7,575 | 2 | 0 | |
|
Blue Ridge West MUD Fort Bend County |
7,545 | 0 | 0 | |
|
City of Justin Denton County |
7,537 | 2 | 0 | |
|
Harris County MUD 151 Harris County |
7,464 | 0 | 0 | |
|
City of Mexia Limestone County |
7,459 | 2 | 0 | |
|
City of Willow Park Parker County |
7,439 | 1 | 1 | |
|
CY Champ Pud Harris County |
7,428 | 0 | 0 | |
|
Potosi WSC Taylor County |
7,413 | 1 | 0 | |
|
Harris County MUD 419 Harris County |
7,389 | 0 | 0 | |
|
City of Seminole Gaines County |
7,386 | 3 | 2 | |
|
Central Wcid of Angelina County Angelina County |
7,381 | 1 | 0 | |
|
Sienna MUD 3 Fort Bend County |
7,365 | 1 | 0 | |
|
City of Luling Caldwell County |
7,364 | 1 | 0 | |
|
Fort Bend County MUD 133 Fort Bend County |
7,362 | 0 | 0 | |
|
City of Alamo Heights Bexar County |
7,357 | 2 | 0 | |
|
Fort Bend County MUD 134b Fort Bend County |
7,356 | 0 | 0 | |
|
Emerald Forest Utility District Harris County |
7,326 | 2 | 1 | |
|
Parkway UD Harris County |
7,323 | 1 | 0 | |
|
Kaufman County Fwsd 4a Kaufman County |
7,317 | 2 | 0 | |
|
Harris County MUD 152 Harris County |
7,314 | 0 | 0 | |
|
Bright Star-Salem SUD Wood County |
7,308 | 2 | 0 | |
|
City of Wilmer Dallas County |
7,296 | 1 | 1 | |
|
City of Lampasas Lampasas County |
7,291 | 4 | 0 | |
|
City of Wills Point Van Zandt County |
7,281 | 2 | 0 | |
|
D & M WSC Nacogdoches County |
7,280 | 5 | 2 | |
|
City of Lacy Lakeview McLennan County |
7,275 | 4 | 0 | |
|
Bastrop County Wcid 2 Bastrop County |
7,269 | 1 | 0 | |
|
Fort Bend County MUD 134c Fort Bend County |
7,260 | 1 | 1 | |
|
Fort Bend County MUD 143 Water View Esta Fort Bend County |
7,245 | 0 | 0 | |
|
Harris County MUD 504 Harris County |
7,242 | 0 | 0 | |
|
Malcomson Road Utility District Harris County |
7,231 | 0 | 0 | |
|
City of la Feria Cameron County |
7,226 | 2 | 1 | |
|
Dyess Air Force Base Taylor County |
7,183 | 0 | 0 | |
|
Harris County MUD 449 Harris County |
7,179 | 0 | 0 | |
|
Windfern Forest Utility District Harris County |
7,170 | 0 | 0 | |
|
City of Hempstead Waller County |
7,158 | 4 | 2 | |
|
City of Crystal City Zavala County |
7,128 | 1 | 0 | |
|
Town of Providence Village Denton County |
7,128 | 0 | 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.