TX1280007 · Texas

EL OSO WSC

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

Violation records shown: 4
EPA health-based flag: 3
Health-based records unresolved in this snapshot: 0
Monitoring and reporting records: 1

Counties listed by EPA · Karnes 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

Among 4 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 91 days. The interval uses the reporting periods and dates on file.

Monitoring or reporting · Resolved

Notification, Known or Potential LSLViolation 100068490 · LEAD AND COPPER RULE REVISIONS · Lead and Copper Rule Revisions

Noncompliance period start July 2, 2025 · period end May 19, 2026 · first reported June 26, 2026 · EPA return-to-compliance field May 19, 2026

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
100116858	March 26, 2026	Informal	State Violation/Reminder Notice
100116859	May 19, 2026	Resolving	State Compliance achieved

EPA health-based flag · Resolved

Maximum Contaminant Level Violation, AverageViolation 100068480 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start January 1, 2024 · period end March 31, 2024 · first reported May 16, 2024 · EPA return-to-compliance field March 31, 2024

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
100116851	April 9, 2024	Informal	State Violation/Reminder Notice
100116852	April 9, 2024	Informal	State Public Notification requested
100116853	May 2, 2024	Informal	State Public Notification received
100116855	October 3, 2024	Resolving	State Compliance achieved

EPA health-based flag · Resolved

Maximum Contaminant Level Violation, AverageViolation 100068476 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start July 1, 2023 · period end September 30, 2023 · first reported December 21, 2023 · EPA return-to-compliance field September 30, 2023

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
100116846	November 3, 2023	Informal	State Violation/Reminder Notice
100116849	November 3, 2023	Informal	State Public Notification requested
100116850	November 27, 2023	Informal	State Public Notification received
100116855	October 3, 2024	Resolving	State Compliance achieved

EPA health-based flag · Resolved

Maximum Contaminant Level Violation, AverageViolation 100068466 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start October 1, 2020 · period end December 31, 2020 · first reported February 22, 2021 · EPA return-to-compliance field December 31, 2020

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
100116841	December 22, 2020	Informal	State Violation/Reminder Notice
100116842	December 22, 2020	Informal	State Public Notification requested
100116844	February 4, 2021	Informal	State Public Notification received
100116845	March 25, 2021	Resolving	State Compliance achieved

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