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 |
|---|---|---|---|---|
|
City of Laredo Webb County |
260,046 | 4 | 0 | |
|
City of Rosenberg Fort Bend County |
43,158 | 2 | 0 | |
|
City of Saginaw Tarrant County |
23,890 | 2 | 1 | |
|
Maxwell SUD Caldwell County |
16,104 | 2 | 0 | |
|
City of Willis Montgomery County |
14,133 | 9 | 2 | |
|
City of la Grulla Starr County |
11,250 | 7 | 6 | |
|
Fort Bend County MUD 128 Fort Bend County |
10,974 | 1 | 0 | |
|
Rice University Harris County |
8,415 | 5 | 0 | |
|
City of Magnolia Montgomery County |
7,107 | 6 | 2 | |
|
City of Hutchins Dallas County |
6,495 | 5 | 1 | |
|
City of Alpine Brewster County |
6,000 | 6 | 2 | |
|
City of Primera Cameron County |
5,811 | 4 | 1 | |
|
City of Nassau Bay Harris County |
5,347 | 1 | 0 | |
|
Falfurrias Utility Board Brooks County |
4,473 | 7 | 2 | |
|
EL Paso County Tornillo Wid El Paso County |
3,600 | 1 | 0 | |
|
South Rains SUD Rains County |
3,594 | 3 | 1 | |
|
City of Grand Saline Van Zandt County |
3,219 | 3 | 1 | |
|
City of la Joya Hidalgo County |
3,033 | 7 | 5 | |
|
Needville Isd Fort Bend County |
3,000 | 1 | 0 | |
|
Woodrow Osceola WSC Blanton Well Plant 1 Hill County |
2,526 | 2 | 0 | |
|
City of Overton Rusk County |
2,275 | 5 | 2 | |
|
City of Mason Mason County |
2,228 | 6 | 2 | |
|
City of West Tawakoni Hunt County |
2,061 | 8 | 5 | |
|
Palmer Plantation MUD 1 Fort Bend County |
2,031 | 1 | 0 | |
|
City of Rotan Fisher County |
1,983 | 7 | 5 | |
|
Fayette WSC East Fayette County |
1,866 | 1 | 0 | |
|
City of Buffalo Leon County |
1,767 | 3 | 1 | |
|
Country Terrace Subdivision Harris County |
1,677 | 4 | 1 | |
|
City of Joaquin Shelby County |
1,620 | 6 | 4 | |
|
Woodrow Osceola WSC Pleasant VW Hill County |
1,584 | 2 | 0 | |
|
City of Baird Callahan County |
1,534 | 8 | 2 | |
|
Fort Bend County MUD 115 Riverstone Fort Bend County |
1,527 | 1 | 0 | |
|
City of Maud Bowie County |
1,437 | 3 | 0 | |
|
City of Lone Star Morris County |
1,400 | 6 | 1 | |
|
City of Wallis Austin County |
1,292 | 4 | 2 | |
|
Salt Lick Bar B Q Hays County |
1,143 | 1 | 1 | |
|
City of Star Harbor Henderson County |
1,119 | 9 | 2 | |
|
Star Travel Center Montague County |
1,081 | 2 | 1 | |
|
Mountain View Subdivision Hood County |
1,029 | 6 | 0 | |
|
Magnolia Isd Smith Elementary School Montgomery County |
900 | 5 | 1 | |
|
City of Zavalla Angelina County |
880 | 8 | 5 | |
|
Rolling V Ranch Wcid 1 of Wise County Wise County |
795 | 1 | 0 | |
|
Rolling V Ranch Wcid 2 Wise County |
774 | 1 | 0 | |
|
City of Jewett Leon County |
737 | 7 | 2 | |
|
Arch Ray Condos Gillespie County |
735 | 3 | 3 | |
|
Conroe Isd San Jacinto Elementary Montgomery County |
718 | 1 | 0 | |
|
Permian Lodging Midland County |
700 | 3 | 1 | |
|
Woodrow Osceola WSC Osceola Hill County |
669 | 4 | 1 | |
|
City of Rose City Orange County |
664 | 7 | 2 | |
|
City of Meadow Terry County |
593 | 6 | 3 |
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.