All water systems in Texas
7,430 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Montgomery County MUD 99 Montgomery County |
3,675 | 0 | 0 | |
|
Verona SUD Collin County |
3,672 | 2 | 1 | |
|
Fort Bend County MUD 229 Fort Bend County |
3,666 | 0 | 0 | |
|
Somervell County Water District Somervell County |
3,666 | 2 | 0 | |
|
Woodland Oaks Subdivision Montgomery County |
3,666 | 2 | 0 | |
|
City of Chandler Henderson County |
3,663 | 5 | 2 | |
|
Fort Bend County MUD 185 Fort Bend County |
3,663 | 2 | 0 | |
|
Lake Medina Shores Bandera County |
3,660 | 1 | 0 | |
|
Harris County Wcid 116 Harris County |
3,651 | 0 | 0 | |
|
City of West Columbia Brazoria County |
3,650 | 0 | 0 | |
|
Jbsa Medina Bexar County |
3,650 | 0 | 0 | |
|
Northwest Harris County MUD 36 Harris County |
3,648 | 0 | 0 | |
|
Harris County MUD 11 Harris County |
3,645 | 1 | 0 | |
|
Valley MUD 2 Rancho Viejo Cameron County |
3,644 | 1 | 1 | |
|
Harris County MUD 208 Harris County |
3,642 | 0 | 0 | |
|
Shady Grove SUD Hunt County |
3,642 | 4 | 0 | |
|
City of Bertram Burnet County |
3,636 | 1 | 0 | |
|
Poetry WSC Kaufman County |
3,636 | 2 | 1 | |
|
Multi-County WSC Coryell County |
3,631 | 3 | 0 | |
|
Harris County MUD 216 Harris County |
3,627 | 0 | 0 | |
|
Northwest Grayson County Wcid 1 Grayson County |
3,615 | 6 | 4 | |
|
City of Winnsboro Wood County |
3,614 | 1 | 1 | |
|
Pecos County Wcid 1 Pecos County |
3,612 | 0 | 0 | |
|
Robertson County WSC Robertson County |
3,611 | 0 | 0 | |
|
North Rural WSC Palo Pinto County |
3,610 | 3 | 1 | |
|
City of Eastland Eastland County |
3,609 | 2 | 0 | |
|
Lometa Regional Water Lampasas County |
3,609 | 3 | 1 | |
|
Four Pines WSC Anderson County |
3,603 | 1 | 0 | |
|
City of Point Rains County |
3,600 | 3 | 1 | |
|
EL Paso County Tornillo Wid El Paso County |
3,600 | 1 | 0 | |
|
Falcon Rural WSC Starr County |
3,600 | 4 | 3 | |
|
South Rains SUD Rains County |
3,594 | 3 | 1 | |
|
EL Dorado Utility District Harris County |
3,591 | 0 | 0 | |
|
West Harris County MUD 5 Harris County |
3,591 | 0 | 0 | |
|
Combine WSC Dallas County |
3,588 | 3 | 0 | |
|
Metroplex Homesteads Water Supply Johnson County |
3,588 | 1 | 0 | |
|
City of Oak Ridge North Montgomery County |
3,585 | 0 | 0 | |
|
City of Ballinger Runnels County |
3,583 | 5 | 2 | |
|
Fort Bend County MUD 222 Fort Bend County |
3,582 | 0 | 0 | |
|
City of Haslet Tarrant County |
3,579 | 0 | 0 | |
|
Kendall County Wcid 1 Kendall County |
3,579 | 4 | 0 | |
|
City of Merkel Taylor County |
3,573 | 1 | 1 | |
|
Harris County MUD 264 Harris County |
3,573 | 2 | 1 | |
|
Harris County MUD 281 Harris County |
3,573 | 0 | 0 | |
|
Brazoria County MUD 2 Brazoria County |
3,567 | 1 | 0 | |
|
Gum Springs WSC 1 Harrison County |
3,564 | 2 | 0 | |
|
City of Coahoma Howard County |
3,552 | 3 | 1 | |
|
Santo SUD Palo Pinto County |
3,546 | 4 | 0 | |
|
Harris County MUD 149 Harris County |
3,543 | 0 | 0 | |
|
Holly Lake Ranch Wood County |
3,540 | 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 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.