Dinoseb violations in Texas
84 active public water systems in Texas had a Dinoseb violation in the past three years. What Dinoseb is and why it matters.
Health effects: Dinoseb uncouples oxidative phosphorylation, disrupting cellular energy production. Chronic exposure causes reproductive toxicity: impaired sperm production in males and developmental harm, including birth defects, in developing fetuses. EPA has not established a formal carcinogenicity classification. Reproductive-age adults and pregnant women face the greatest risk.
Systems with a Dinoseb violation
Latest quarter first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Baker Hughes Emmott RD Plant Harris County |
319 | 8 | 0 | |
|
Harmony Water System Parker County |
285 | 8 | 0 | |
|
Garden Acres Subdivision Gregg County |
255 | 7 | 2 | |
|
Tall Timbers WSC Newton County |
234 | 8 | 1 | |
|
Anderson Water System Grimes County |
226 | 10 | 5 | |
|
Metal Building Components Harris County |
217 | 5 | 2 | |
|
San Bernard River Estates Brazoria County |
207 | 3 | 0 | |
|
Katy Plaza Harris County |
200 | 5 | 1 | |
|
Richards Water System Grimes County |
200 | 11 | 4 | |
|
Warren Road Subdivision Water Supply Midland County |
195 | 13 | 6 | |
|
New Wine Chapel Fort Bend County |
150 | 9 | 2 | |
|
Sheldon Isd Transportation Center Harris County |
150 | 7 | 0 | |
|
West Park Addition Parker County |
144 | 5 | 1 | |
|
Comstock Border Patrol Station Val Verde County |
140 | 5 | 0 | |
|
Little Lions Learning Academy Bexar County |
100 | 12 | 4 | |
|
Blue Ridge Mobile Home Park Kerr County |
75 | 9 | 1 | |
|
Sky Harbor Ranchettes Water System Kerr County |
66 | 9 | 1 | |
|
Carol Norra Mobile Home Park Harris County |
63 | 10 | 4 | |
|
Houston Suburban Heights MHP Harris County |
60 | 14 | 5 | |
|
Stone Mountain Subdivision Burnet County |
60 | 6 | 0 | |
|
Goshen Erets Newton County |
52 | 5 | 2 | |
|
Cutten Grove Business Park Harris County |
50 | 4 | 1 | |
|
Sunnyvale RV Park Wise County |
48 | 9 | 2 | |
|
McElroy Ranch Water System Brewster County |
45 | 10 | 0 | |
|
Sunset Ridge RV Park Burnet County |
40 | 7 | 1 | |
|
Lee Limas Mobile Home Park El Paso County |
39 | 13 | 4 | |
|
200 County Road 314 Williamson County |
37 | 7 | 1 | |
|
Old Dominion Tyler Terminal Smith County |
37 | 5 | 0 | |
|
Rayburn Water Resources Jasper County |
37 | 7 | 1 | |
|
Seaport Lakes Subdivision Calhoun County |
36 | 10 | 4 | |
|
Town Bluff Water System Tyler County |
34 | 4 | 0 | |
|
Shafter Mine Presidio County |
32 | 13 | 4 | |
|
Hollister Business Park Harris County |
25 | 8 | 0 | |
|
Texas Rain Bastrop County |
25 | 5 | 0 |
About this data
A system is counted once if any of its violations in the past three years involved Dinoseb, including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Dinoseb 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.