TX0790033 · Texas

THUNDERBIRD UTILITY DISTRICT 1

Federal fiscal 2026Q3 · EPA violation and follow-up records

Violation records shown: 38
EPA health-based flag: 0
Health-based records unresolved in this snapshot: 0
Monitoring and reporting records: 38

Counties listed by EPA · Fort Bend County, Texas

Find the utility’s annual water quality report. For current advisories, check the utility or local drinking-water authority.

Violations and what followed

Monitoring or reporting · Archived
Monitoring, RegularViolation 194 · Chlordane · Synthetic Organic Chemicals
Noncompliance period start January 1, 2022 · period end December 31, 2024 · first reported May 14, 2025 · EPA return-to-compliance field December 31, 2024
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 193 · Pentachlorophenol · Synthetic Organic Chemicals
Noncompliance period start January 1, 2022 · period end December 31, 2024 · first reported May 14, 2025 · EPA return-to-compliance field December 31, 2024
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 192 · Benzo(a)pyrene · Synthetic Organic Chemicals
Noncompliance period start January 1, 2022 · period end December 31, 2024 · first reported May 14, 2025 · EPA return-to-compliance field December 31, 2024
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 191 · HEXACHLOROBENZENE · Synthetic Organic Chemicals
Noncompliance period start January 1, 2022 · period end December 31, 2024 · first reported May 14, 2025 · EPA return-to-compliance field December 31, 2024
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 190 · Heptachlor epoxide · Synthetic Organic Chemicals
Noncompliance period start January 1, 2022 · period end December 31, 2024 · first reported May 14, 2025 · EPA return-to-compliance field December 31, 2024
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 189 · Heptachlor · Synthetic Organic Chemicals
Noncompliance period start January 1, 2022 · period end December 31, 2024 · first reported May 14, 2025 · EPA return-to-compliance field December 31, 2024
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 188 · LASSO · Synthetic Organic Chemicals
Noncompliance period start January 1, 2022 · period end December 31, 2024 · first reported May 14, 2025 · EPA return-to-compliance field December 31, 2024
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 187 · Atrazine · Synthetic Organic Chemicals
Noncompliance period start January 1, 2022 · period end December 31, 2024 · first reported May 14, 2025 · EPA return-to-compliance field December 31, 2024
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 186 · Hexachlorocyclopentadiene · Synthetic Organic Chemicals
Noncompliance period start January 1, 2022 · period end December 31, 2024 · first reported May 14, 2025 · EPA return-to-compliance field December 31, 2024
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 185 · Di(2-ethylhexyl) phthalate · Synthetic Organic Chemicals
Noncompliance period start January 1, 2022 · period end December 31, 2024 · first reported May 14, 2025 · EPA return-to-compliance field December 31, 2024
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 184 · Simazine · Synthetic Organic Chemicals
Noncompliance period start January 1, 2022 · period end December 31, 2024 · first reported May 14, 2025 · EPA return-to-compliance field December 31, 2024
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 183 · Di(2-ethylhexyl) adipate · Synthetic Organic Chemicals
Noncompliance period start January 1, 2022 · period end December 31, 2024 · first reported May 14, 2025 · EPA return-to-compliance field December 31, 2024
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 182 · Toxaphene · Synthetic Organic Chemicals
Noncompliance period start January 1, 2022 · period end December 31, 2024 · first reported May 14, 2025 · EPA return-to-compliance field December 31, 2024
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 181 · Methoxychlor · Synthetic Organic Chemicals
Noncompliance period start January 1, 2022 · period end December 31, 2024 · first reported May 14, 2025 · EPA return-to-compliance field December 31, 2024
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 180 · BHC-GAMMA · Synthetic Organic Chemicals
Noncompliance period start January 1, 2022 · period end December 31, 2024 · first reported May 14, 2025 · EPA return-to-compliance field December 31, 2024
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 179 · Endrin · Synthetic Organic Chemicals
Noncompliance period start January 1, 2022 · period end December 31, 2024 · first reported May 14, 2025 · EPA return-to-compliance field December 31, 2024
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 173 · 2,4,5-TP · Synthetic Organic Chemicals
Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported May 16, 2024 · EPA return-to-compliance field December 31, 2023
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 172 · 2,4-D · Synthetic Organic Chemicals
Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported May 16, 2024 · EPA return-to-compliance field December 31, 2023
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 171 · Dinoseb · Synthetic Organic Chemicals
Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported May 16, 2024 · EPA return-to-compliance field December 31, 2023
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 170 · Picloram · Synthetic Organic Chemicals
Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported May 16, 2024 · EPA return-to-compliance field December 31, 2023
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 169 · Dalapon · Synthetic Organic Chemicals
Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported May 16, 2024 · EPA return-to-compliance field December 31, 2023
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 168 · ETHYLENE DIBROMIDE · Synthetic Organic Chemicals
Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported May 16, 2024 · EPA return-to-compliance field December 31, 2023
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 167 · 1,2-DIBROMO-3-CHLOROPROPANE · Synthetic Organic Chemicals
Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported May 16, 2024 · EPA return-to-compliance field December 31, 2023
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 166 · Aldicarb · Synthetic Organic Chemicals
Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported May 16, 2024 · EPA return-to-compliance field December 31, 2023
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 165 · Carbofuran · Synthetic Organic Chemicals
Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported May 16, 2024 · EPA return-to-compliance field December 31, 2023
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 164 · Aldicarb sulfone · Synthetic Organic Chemicals
Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported May 16, 2024 · EPA return-to-compliance field December 31, 2023
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 163 · Aldicarb sulfoxide · Synthetic Organic Chemicals
Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported May 16, 2024 · EPA return-to-compliance field December 31, 2023
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 162 · OXAMYL · Synthetic Organic Chemicals
Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported May 16, 2024 · EPA return-to-compliance field December 31, 2023
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 160 · Selenium · Inorganic Chemicals
Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported May 16, 2024 · EPA return-to-compliance field December 31, 2023
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 158 · Thallium, Total · Inorganic Chemicals
Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported May 16, 2024 · EPA return-to-compliance field December 31, 2023
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 157 · Beryllium, Total · Inorganic Chemicals
Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported May 16, 2024 · EPA return-to-compliance field December 31, 2023
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 156 · Antimony, Total · Inorganic Chemicals
Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported May 16, 2024 · EPA return-to-compliance field December 31, 2023
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 154 · Mercury · Inorganic Chemicals
Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported May 16, 2024 · EPA return-to-compliance field December 31, 2023
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 151 · Chromium · Inorganic Chemicals
Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported May 16, 2024 · EPA return-to-compliance field December 31, 2023
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 150 · Cadmium · Inorganic Chemicals
Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported May 16, 2024 · EPA return-to-compliance field December 31, 2023
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 149 · Barium · Inorganic Chemicals
Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported May 16, 2024 · EPA return-to-compliance field December 31, 2023
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 148 · Arsenic · Arsenic Rule
Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported May 16, 2024 · EPA return-to-compliance field December 31, 2023
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, RegularViolation 146 · CYANIDE · Inorganic Chemicals
Noncompliance period start January 1, 2021 · period end December 31, 2023 · first reported May 16, 2024 · EPA return-to-compliance field December 31, 2023
No linked action row appears in the records shown.

EPA data and scope

How to read the records

The enforcement snapshot is federal fiscal 2026Q3. The EPA archive labels its violation file October 13, 2026. EPA says federal reporting can lag by several months. For current advisories, check your utility or local drinking-water authority.

We matched active community water systems by public water system ID between EPA’s system search and SDWIS inventory. We show violations with a recorded noncompliance, initial reporting or return-to-compliance date from 2021 onward, plus earlier records listed as Addressed or Unaddressed.
EPA’s health-based flag identifies violations of contaminant or disinfectant limits or treatment requirements. Monitoring and reporting violations describe required tests or reports. Neither category measures household exposure.
Addressed means EPA records formal enforcement on a violation that remains unresolved in the snapshot. Unaddressed means no formal action is recorded for an unresolved violation. Resolved can mean compliance was restored, the rule ceased to apply, or further action was unnecessary. Archived is a separate status.
We count a violation once per water system and group its distinct linked actions. Conflicting records are set aside. Places are EPA-listed search locations and can include mailing locations. Use the provider name and system ID to identify your service.

EPA data dictionary and files · EPA reporting and enforcement FAQ · Find an annual water quality report · How to get the report from your utility