All water systems in Texas
7,430 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Harris County MUD 173 Harris County |
3,894 | 0 | 0 | |
|
The Consolidated WSC Central System Houston County |
3,878 | 6 | 1 | |
|
Bella Vista Liberty County |
3,876 | 0 | 0 | |
|
Lindale Rural WSC DC Smith County |
3,876 | 1 | 0 | |
|
Grand Lakes MUD 4 Fort Bend County |
3,867 | 0 | 0 | |
|
City of Columbus Colorado County |
3,860 | 1 | 0 | |
|
City of Cockrell Hill Dallas County |
3,855 | 1 | 0 | |
|
Harris County MUD 345 Harris County |
3,855 | 0 | 0 | |
|
Chalk Bluff WSC McLennan County |
3,852 | 1 | 1 | |
|
Navarro Mills WSC Navarro County |
3,852 | 0 | 0 | |
|
Emma Long Metro Park Travis County |
3,840 | 2 | 0 | |
|
City of Eagle Lake Colorado County |
3,837 | 5 | 3 | |
|
Cinco MUD 9 Fort Bend County |
3,828 | 0 | 0 | |
|
Montgomery County UD 3 Montgomery County |
3,825 | 0 | 0 | |
|
Harris County MUD 534 Harris County |
3,822 | 0 | 0 | |
|
City of Clyde Callahan County |
3,820 | 5 | 1 | |
|
Kaufman County MUD 11 Kaufman County |
3,819 | 1 | 0 | |
|
City of Nash Bowie County |
3,818 | 1 | 1 | |
|
City of Venus Johnson County |
3,816 | 2 | 1 | |
|
Harris Fort Bend Counties MUD 1 Fort Bend County |
3,812 | 0 | 0 | |
|
Northwest Harris County MUD 30 Harris County |
3,804 | 0 | 0 | |
|
Crockett County Wcid 1 Ozona Crockett County |
3,800 | 2 | 0 | |
|
Lamar Cisd Within Fbcmud 132 Fort Bend County |
3,800 | 0 | 0 | |
|
Stanley Lake MUD Montgomery County |
3,783 | 0 | 0 | |
|
City of Springtown Parker County |
3,781 | 1 | 1 | |
|
Decker Hills Montgomery County |
3,780 | 3 | 1 | |
|
City of Bunker Hill Village Harris County |
3,771 | 1 | 1 | |
|
City of Montgomery Montgomery County |
3,771 | 3 | 0 | |
|
Kaufman County MUD 10 Kaufman County |
3,771 | 0 | 0 | |
|
City of Emory Rains County |
3,762 | 3 | 0 | |
|
Mountain Springs WSC Cooke County |
3,756 | 2 | 0 | |
|
Northgate Crossing MUD 2 Harris County |
3,753 | 3 | 0 | |
|
South Freestone County WSC Freestone County |
3,753 | 1 | 0 | |
|
Harris County MUD 401 Harris County |
3,750 | 2 | 1 | |
|
Fruitvale WSC Van Zandt County |
3,747 | 1 | 0 | |
|
Postwood MUD Harris County |
3,747 | 0 | 0 | |
|
Becker-Jiba SUD Kaufman County |
3,741 | 0 | 0 | |
|
Callahan County WSC Callahan County |
3,741 | 2 | 0 | |
|
Glenwood WSC Upshur County |
3,738 | 1 | 1 | |
|
Brittmoore Utility Harris County |
3,732 | 0 | 0 | |
|
Harris County MUD 191 Harris County |
3,729 | 1 | 1 | |
|
South Newton WSC Newton County |
3,729 | 4 | 0 | |
|
Cedar Creek Water System Hill County |
3,720 | 1 | 0 | |
|
Loma Vista Water System Kerr County |
3,720 | 1 | 0 | |
|
Encanto Real Utility District Harris County |
3,717 | 1 | 1 | |
|
Fry Road MUD Harris County |
3,711 | 0 | 0 | |
|
Harris County MUD 361 Harris County |
3,705 | 0 | 0 | |
|
Harris County MUD 434 Harris County |
3,690 | 0 | 0 | |
|
Canyon Creek Addition Hood County |
3,687 | 2 | 1 | |
|
Northwest Freeway MUD Harris County |
3,678 | 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 currently 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.