Revised Total Coliform Rule (RTCR) violations in Texas
1,311 active public water systems in Texas had a Revised Total Coliform Rule (RTCR) violation in the past three years, 313 of them in the latest quarter of EPA's data. What Revised Total Coliform Rule (RTCR) is and why it matters.
Systems with a Revised Total Coliform Rule (RTCR) violation
Latest quarter first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
R C H WSC Rockwall County |
9,204 | 5 | 1 | |
|
City of Decatur Water Plant Wise County |
9,087 | 3 | 0 | |
|
City of Graham Young County |
8,718 | 4 | 2 | |
|
North Hopkins WSC Hopkins County |
8,253 | 1 | 0 | |
|
City of Prairie View Waller County |
8,184 | 4 | 2 | |
|
Tdcj Coffield Unit Anderson County |
7,965 | 4 | 0 | |
|
439 WSC Bell County |
7,836 | 2 | 0 | |
|
Sienna MUD 10 Fort Bend County |
7,824 | 1 | 0 | |
|
Tbcd West Treatment Plant Chambers County |
7,695 | 1 | 0 | |
|
City of Richwood Brazoria County |
7,605 | 3 | 0 | |
|
Sienna MUD 3 Fort Bend County |
7,365 | 1 | 0 | |
|
Bright Star-Salem SUD Wood County |
7,308 | 2 | 0 | |
|
D & M WSC Nacogdoches County |
7,280 | 5 | 2 | |
|
City of Kaufman Kaufman County |
7,125 | 3 | 0 | |
|
Travis County MUD 4 Travis County |
6,816 | 2 | 0 | |
|
City of Alvarado Johnson County |
6,614 | 5 | 2 | |
|
City of Iowa Park Wichita County |
6,612 | 5 | 2 | |
|
Sienna MUD 4 Fort Bend County |
6,435 | 1 | 0 | |
|
San Diego MUD 1 Duval County |
6,291 | 5 | 2 | |
|
City of McGregor McLennan County |
6,037 | 6 | 2 | |
|
Ingram Water Supply Kerr County |
5,955 | 1 | 0 | |
|
City of Littlefield Lamb County |
5,943 | 2 | 0 | |
|
City of Kermit Winkler County |
5,708 | 6 | 4 | |
|
Tdcj Chase Field Bee County |
5,669 | 4 | 0 | |
|
Fritch Municipal Water Supply Hutchinson County |
5,636 | 6 | 3 | |
|
Fort Bend County MUD 162 Fort Bend County |
5,553 | 2 | 0 | |
|
City of Waller Waller County |
5,448 | 3 | 1 | |
|
Tarkington SUD Liberty County |
5,265 | 1 | 0 | |
|
Goodfellow Air Force Base Tom Green County |
5,241 | 4 | 1 | |
|
Brazoria County MUD 55 Brazoria County |
5,229 | 1 | 0 | |
|
Fort Bend County MUD 194 Fort Bend County |
5,211 | 2 | 0 | |
|
City of Diboll Angelina County |
5,207 | 7 | 0 | |
|
Sienna MUD 6 Fort Bend County |
5,184 | 1 | 0 | |
|
Coleman County SUD Coleman County |
5,000 | 6 | 3 | |
|
City of Lytle Atascosa County |
4,860 | 6 | 1 | |
|
City of Missouri City Fort Bend County |
4,847 | 1 | 0 | |
|
City of Caddo Mills Hunt County |
4,688 | 3 | 1 | |
|
City of Taft San Patricio County |
4,627 | 5 | 0 | |
|
City of Redwater Bowie County |
4,356 | 6 | 4 | |
|
City of Comanche Comanche County |
4,211 | 6 | 0 | |
|
Harleton WSC Harrison County |
4,107 | 7 | 3 | |
|
Dog Ridge WSC Bell County |
4,100 | 4 | 0 | |
|
Rayburn Country MUD Jasper County |
4,062 | 6 | 2 | |
|
Tpwd Ray Roberts Lake Isle Dubois Denton County |
4,056 | 2 | 1 | |
|
Greenwood Isd Midland County |
3,945 | 3 | 1 | |
|
West Wise SUD Wise County |
3,909 | 3 | 1 | |
|
Gholson WSC McLennan County |
3,903 | 4 | 1 | |
|
The Consolidated WSC Central System Houston County |
3,878 | 6 | 1 | |
|
City of Cockrell Hill Dallas County |
3,855 | 1 | 0 | |
|
City of Emory Rains County |
3,762 | 3 | 0 |
About this data
A system is counted once if any of its violations in the past three years involved Revised Total Coliform Rule (RTCR), including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Revised Total Coliform Rule (RTCR) alone.
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.