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PR0458234 · Puerto Rico

EL TESORO

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

Violation records shown: 47
EPA health-based flag: 2
Health-based records unresolved in this snapshot: 2
Monitoring and reporting records: 45

Open the EPA system record

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

Violations and what followed

EPA health-based flag · Unaddressed by formal action

LSL InventoryViolation 7780594 · LEAD AND COPPER RULE REVISIONS · Lead and Copper Rule Revisions

Noncompliance period start October 17, 2024 · first reported March 28, 2025

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
8083712	March 26, 2025	Informal	State Formal Notice of Violation issued
8083713	March 26, 2025	Informal	State Public Notification requested

EPA health-based flag · Addressed by formal action

Failure to Filter (SWTR)Violation 7780507 · Surface Water Treatment Rule · Surface Water Treatment Rule

Noncompliance period start January 1, 2007 · first reported September 3, 2008

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
105	August 8, 2005	Formal	Federal Final Administrative Order issued
#20088312	August 14, 2008	Formal	Federal Final Administrative Order issued
#20160927	September 27, 2016	Formal	Federal Final Administrative Order issued

Monitoring or reporting · Archived
Monitoring, Routine (RTCR)Violation 7780626 · Revised Total Coliform Rule · Revised Total Coliform Rule
Noncompliance period start June 1, 2026 · period end June 30, 2026 · first reported August 28, 2026 · EPA return-to-compliance field June 30, 2026
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, Routine (RTCR)Violation 7780625 · Revised Total Coliform Rule · Revised Total Coliform Rule
Noncompliance period start May 1, 2026 · period end May 31, 2026 · first reported August 28, 2026 · EPA return-to-compliance field May 31, 2026
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, Routine (RTCR)Violation 7780624 · Revised Total Coliform Rule · Revised Total Coliform Rule
Noncompliance period start April 1, 2026 · period end April 30, 2026 · first reported August 28, 2026 · EPA return-to-compliance field April 30, 2026
No linked action row appears in the records shown.

Monitoring or reporting · Archived

Monitoring, Routine (RTCR)Violation 7780623 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start March 1, 2026 · period end March 31, 2026 · first reported June 5, 2026 · EPA return-to-compliance field March 31, 2026

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
8083765	May 15, 2026	Informal	State Violation/Reminder Notice
8083766	May 15, 2026	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring, Routine (RTCR)Violation 7780622 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start February 1, 2026 · period end February 28, 2026 · first reported June 5, 2026 · EPA return-to-compliance field February 28, 2026

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
8083763	May 15, 2026	Informal	State Violation/Reminder Notice
8083764	May 15, 2026	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring, Routine (RTCR)Violation 7780621 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start January 1, 2026 · period end January 31, 2026 · first reported June 5, 2026 · EPA return-to-compliance field January 31, 2026

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
8083761	May 15, 2026	Informal	State Violation/Reminder Notice
8083762	May 15, 2026	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring, Routine (RTCR)Violation 7780620 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start December 1, 2025 · period end December 31, 2025 · first reported March 9, 2026 · EPA return-to-compliance field December 31, 2025

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
8083759	February 23, 2026	Informal	State Violation/Reminder Notice
8083760	February 23, 2026	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring, Routine (RTCR)Violation 7780619 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start November 1, 2025 · period end November 30, 2025 · first reported March 9, 2026 · EPA return-to-compliance field November 30, 2025

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
8083757	February 23, 2026	Informal	State Violation/Reminder Notice
8083758	February 23, 2026	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring, Routine (RTCR)Violation 7780618 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start October 1, 2025 · period end October 31, 2025 · first reported March 9, 2026 · EPA return-to-compliance field October 31, 2025

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
8083755	February 23, 2026	Informal	State Violation/Reminder Notice
8083756	February 23, 2026	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring, Routine (RTCR)Violation 7780617 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start September 1, 2025 · period end September 30, 2025 · first reported December 23, 2025 · EPA return-to-compliance field September 30, 2025

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
8083753	November 25, 2025	Informal	State Violation/Reminder Notice
8083754	November 25, 2025	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring, Routine (RTCR)Violation 7780616 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start August 1, 2025 · period end August 31, 2025 · first reported December 23, 2025 · EPA return-to-compliance field August 31, 2025

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
8083751	November 25, 2025	Informal	State Violation/Reminder Notice
8083752	November 25, 2025	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring, Routine (RTCR)Violation 7780615 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start July 1, 2025 · period end July 31, 2025 · first reported December 23, 2025 · EPA return-to-compliance field July 31, 2025

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
8083749	November 25, 2025	Informal	State Violation/Reminder Notice
8083750	November 25, 2025	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring, Routine (RTCR)Violation 7780614 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start June 1, 2025 · period end June 30, 2025 · first reported September 22, 2025 · EPA return-to-compliance field June 30, 2025

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
8083747	August 29, 2025	Informal	State Violation/Reminder Notice
8083748	August 29, 2025	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring, Routine (RTCR)Violation 7780613 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start May 1, 2025 · period end May 31, 2025 · first reported September 22, 2025 · EPA return-to-compliance field May 31, 2025

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
8083745	August 29, 2025	Informal	State Violation/Reminder Notice
8083746	August 29, 2025	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring, Routine (RTCR)Violation 7780612 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start April 1, 2025 · period end April 30, 2025 · first reported September 22, 2025 · EPA return-to-compliance field April 30, 2025

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
8083743	August 29, 2025	Informal	State Violation/Reminder Notice
8083744	August 29, 2025	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring, Routine (RTCR)Violation 7780611 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start March 1, 2025 · period end March 31, 2025 · first reported June 2, 2025 · EPA return-to-compliance field March 31, 2025

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
8083741	May 21, 2025	Informal	State Violation/Reminder Notice
8083742	May 21, 2025	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring, Routine (RTCR)Violation 7780610 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start February 1, 2025 · period end February 28, 2025 · first reported June 2, 2025 · EPA return-to-compliance field February 28, 2025

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
8083739	May 21, 2025	Informal	State Violation/Reminder Notice
8083740	May 21, 2025	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring, Routine (RTCR)Violation 7780609 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start January 1, 2025 · period end January 31, 2025 · first reported June 2, 2025 · EPA return-to-compliance field January 31, 2025

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
8083737	May 20, 2025	Informal	State Violation/Reminder Notice
8083738	May 20, 2025	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring, Routine (RTCR)Violation 7780608 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start December 1, 2024 · period end December 31, 2024 · first reported June 2, 2025 · EPA return-to-compliance field December 31, 2024

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
8083735	May 13, 2025	Informal	State Violation/Reminder Notice
8083736	May 13, 2025	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring, Routine (RTCR)Violation 7780607 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start November 1, 2024 · period end November 30, 2024 · first reported June 2, 2025 · EPA return-to-compliance field November 30, 2024

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
8083733	May 13, 2025	Informal	State Violation/Reminder Notice
8083734	May 13, 2025	Informal	State Public Notification requested

Monitoring or reporting · Unaddressed by formal action
LSL ReportingViolation 7780595 · LEAD AND COPPER RULE REVISIONS · Lead and Copper Rule Revisions
Noncompliance period start October 17, 2024 · first reported March 28, 2025
No linked action row appears in the records shown.

Monitoring or reporting · Archived

Monitoring, Routine (RTCR)Violation 7780606 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start October 1, 2024 · period end October 31, 2024 · first reported June 2, 2025 · EPA return-to-compliance field October 31, 2024

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
8083731	May 13, 2025	Informal	State Violation/Reminder Notice
8083732	May 13, 2025	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring, Routine (RTCR)Violation 7780604 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start September 1, 2024 · period end September 30, 2024 · first reported June 2, 2025 · EPA return-to-compliance field September 30, 2024

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
8083727	May 8, 2025	Informal	State Violation/Reminder Notice
8083728	May 8, 2025	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring, Routine (RTCR)Violation 7780603 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start August 1, 2024 · period end August 31, 2024 · first reported June 2, 2025 · EPA return-to-compliance field August 31, 2024

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
8083725	May 8, 2025	Informal	State Violation/Reminder Notice
8083726	May 8, 2025	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring, Routine (RTCR)Violation 7780602 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start July 1, 2024 · period end July 31, 2024 · first reported June 2, 2025 · EPA return-to-compliance field July 31, 2024

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
8083721	May 1, 2025	Informal	State Violation/Reminder Notice
8083722	May 1, 2025	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring, Routine (RTCR)Violation 7780600 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start June 1, 2024 · period end June 30, 2024 · first reported June 2, 2025 · EPA return-to-compliance field June 30, 2024

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
8083719	April 22, 2025	Informal	State Violation/Reminder Notice
8083720	April 22, 2025	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring, Routine (RTCR)Violation 7780599 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start May 1, 2024 · period end May 31, 2024 · first reported June 2, 2025 · EPA return-to-compliance field May 31, 2024

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
8083717	April 22, 2025	Informal	State Violation/Reminder Notice
8083718	April 22, 2025	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring, Routine (RTCR)Violation 7780598 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start April 1, 2024 · period end April 30, 2024 · first reported June 2, 2025 · EPA return-to-compliance field April 30, 2024

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
8083715	April 16, 2025	Informal	State Violation/Reminder Notice
8083716	April 16, 2025	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring, Routine (RTCR)Violation 7780605 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start March 1, 2024 · period end March 31, 2024 · first reported June 2, 2025 · EPA return-to-compliance field March 31, 2024

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
8083729	May 9, 2025	Informal	State Violation/Reminder Notice
8083730	May 9, 2025	Informal	State Public Notification requested

Monitoring or reporting · Archived
Monitoring, Routine (RTCR)Violation 7780597 · Revised Total Coliform Rule · Revised Total Coliform Rule
Noncompliance period start February 1, 2024 · period end February 29, 2024 · first reported March 28, 2025 · EPA return-to-compliance field February 29, 2024
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, Routine (RTCR)Violation 7780596 · Revised Total Coliform Rule · Revised Total Coliform Rule
Noncompliance period start January 1, 2024 · period end January 31, 2024 · first reported March 28, 2025 · EPA return-to-compliance field January 31, 2024
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, Routine (RTCR)Violation 7780593 · Revised Total Coliform Rule · Revised Total Coliform Rule
Noncompliance period start October 1, 2023 · period end December 31, 2023 · first reported February 28, 2024 · EPA return-to-compliance field December 31, 2023
No linked action row appears in the records shown.
Monitoring or reporting · Unaddressed by formal action
Follow-up Or Routine LCR Tap M/RViolation 7780601 · Lead and Copper Rule · Lead and Copper Rule
Noncompliance period start July 1, 2023 · first reported June 2, 2025
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, Routine (RTCR)Violation 7780592 · Revised Total Coliform Rule · Revised Total Coliform Rule
Noncompliance period start July 1, 2023 · period end September 30, 2023 · first reported November 30, 2023 · EPA return-to-compliance field September 30, 2023
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, Routine (RTCR)Violation 7780591 · Revised Total Coliform Rule · Revised Total Coliform Rule
Noncompliance period start April 1, 2023 · period end June 30, 2023 · first reported November 30, 2023 · EPA return-to-compliance field June 30, 2023
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, Routine (RTCR)Violation 7780590 · Revised Total Coliform Rule · Revised Total Coliform Rule
Noncompliance period start January 1, 2023 · period end March 31, 2023 · first reported August 31, 2023 · EPA return-to-compliance field March 31, 2023
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, Routine (RTCR)Violation 7780589 · Revised Total Coliform Rule · Revised Total Coliform Rule
Noncompliance period start October 1, 2022 · period end December 31, 2022 · first reported August 31, 2023 · EPA return-to-compliance field December 31, 2022
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, Routine (RTCR)Violation 7780588 · Revised Total Coliform Rule · Revised Total Coliform Rule
Noncompliance period start July 1, 2022 · period end September 30, 2022 · first reported February 28, 2023 · EPA return-to-compliance field September 30, 2022
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, Routine (RTCR)Violation 7780587 · Revised Total Coliform Rule · Revised Total Coliform Rule
Noncompliance period start April 1, 2022 · period end June 30, 2022 · first reported December 1, 2022 · EPA return-to-compliance field June 30, 2022
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, Routine (RTCR)Violation 7780586 · Revised Total Coliform Rule · Revised Total Coliform Rule
Noncompliance period start January 1, 2022 · period end March 31, 2022 · first reported December 1, 2022 · EPA return-to-compliance field March 31, 2022
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, Routine (RTCR)Violation 7780585 · Revised Total Coliform Rule · Revised Total Coliform Rule
Noncompliance period start October 1, 2021 · period end December 31, 2021 · first reported December 1, 2022 · EPA return-to-compliance field December 31, 2021
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, Routine (RTCR)Violation 7780584 · Revised Total Coliform Rule · Revised Total Coliform Rule
Noncompliance period start July 1, 2021 · period end September 30, 2021 · first reported March 31, 2022 · EPA return-to-compliance field September 30, 2021
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, Routine (RTCR)Violation 7780583 · Revised Total Coliform Rule · Revised Total Coliform Rule
Noncompliance period start April 1, 2021 · period end June 30, 2021 · first reported December 6, 2021 · EPA return-to-compliance field June 30, 2021
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, Routine (RTCR)Violation 7780582 · Revised Total Coliform Rule · Revised Total Coliform Rule
Noncompliance period start February 1, 2021 · period end February 28, 2021 · first reported June 1, 2021 · EPA return-to-compliance field February 28, 2021
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, Routine (RTCR)Violation 7780581 · Revised Total Coliform Rule · Revised Total Coliform Rule
Noncompliance period start January 1, 2021 · period end January 31, 2021 · first reported June 1, 2021 · EPA return-to-compliance field January 31, 2021
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