All water systems in Texas
7,430 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
City of Brady Water System McCulloch County |
5,371 | 4 | 1 | |
|
Fort Bend County MUD 34 Fort Bend County |
5,367 | 0 | 0 | |
|
Brookshire Mwd Waller County |
5,364 | 1 | 0 | |
|
Southwest Isd Main Bexar County |
5,364 | 2 | 0 | |
|
City of Sansom Park Tarrant County |
5,359 | 1 | 0 | |
|
Tri County SUD Falls County |
5,353 | 2 | 1 | |
|
City of Nassau Bay Harris County |
5,347 | 1 | 0 | |
|
Fort Bend County MUD 118 Fort Bend County |
5,346 | 1 | 0 | |
|
Kaufman County Fwsd 1c Kaufman County |
5,346 | 0 | 0 | |
|
Mount Houston Road MUD Harris County |
5,346 | 0 | 0 | |
|
Westador MUD Harris County |
5,337 | 0 | 0 | |
|
Fort Bend County MUD 57 Fort Bend County |
5,335 | 0 | 0 | |
|
Wimberley WSC Hays County |
5,334 | 1 | 0 | |
|
Cornerstones MUD Harris County |
5,331 | 0 | 0 | |
|
City of Farmersville Collin County |
5,312 | 3 | 1 | |
|
Brazoria County MUD 22 Brazoria County |
5,310 | 1 | 0 | |
|
Mayde Creek MUD Harris County |
5,301 | 1 | 0 | |
|
Fort Bend County MUD 155 Fort Bend County |
5,292 | 0 | 0 | |
|
Montgomery County MUD 112 Montgomery County |
5,292 | 0 | 0 | |
|
Onalaska WSC Polk County |
5,289 | 1 | 0 | |
|
West Harris County MUD 7 Harris County |
5,289 | 1 | 0 | |
|
Tyler County SUD Tyler County |
5,267 | 3 | 3 | |
|
Tarkington SUD Liberty County |
5,265 | 1 | 0 | |
|
Flo Community WSC Leon County |
5,256 | 2 | 0 | |
|
Brazoria County MUD 25 Brazoria County |
5,250 | 3 | 0 | |
|
Harris County MUD 127 Harris County |
5,247 | 0 | 0 | |
|
Goodfellow Air Force Base Tom Green County |
5,241 | 4 | 1 | |
|
Ramey WSC Wood County |
5,238 | 2 | 1 | |
|
Montgomery County MUD 36 Montgomery County |
5,235 | 1 | 1 | |
|
Brazoria County MUD 55 Brazoria County |
5,229 | 1 | 0 | |
|
Stephens Regional SUD Stephens County |
5,220 | 0 | 0 | |
|
Harris County MUD 400 West Harris County |
5,217 | 0 | 0 | |
|
Fort Bend County MUD 194 Fort Bend County |
5,211 | 2 | 0 | |
|
City of Diboll Angelina County |
5,207 | 7 | 0 | |
|
South Tawakoni WSC Van Zandt County |
5,205 | 0 | 0 | |
|
Cinco Southwest MUD 3 Daycare Fort Bend County |
5,187 | 0 | 0 | |
|
Montgomery County MUD 94 Montgomery County |
5,184 | 0 | 0 | |
|
Sienna MUD 6 Fort Bend County |
5,184 | 1 | 0 | |
|
Harris County MUD 33 Harris County |
5,181 | 0 | 0 | |
|
Camino Real Liberty County |
5,160 | 0 | 0 | |
|
Harris County Wcid 114 Harris County |
5,160 | 1 | 0 | |
|
Muleshoe Municipal Water System Bailey County |
5,158 | 0 | 0 | |
|
Kendall West Utility Kendall County |
5,136 | 0 | 0 | |
|
Crosby MUD Harris County |
5,130 | 3 | 0 | |
|
West Gregg SUD Gregg County |
5,127 | 2 | 0 | |
|
Tdcj Ramsey Area Brazoria County |
5,119 | 4 | 0 | |
|
Harris County MUD 179 Harris County |
5,115 | 0 | 0 | |
|
City of Garden Ridge Comal County |
5,100 | 0 | 0 | |
|
Harris County MUD 276 Harris County |
5,094 | 0 | 0 | |
|
Fort Bend County MUD 119 Fort Bend County |
5,088 | 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.