PR0003283 · Puerto Rico

MAYAGUEZ

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

Violation records shown: 37
EPA health-based flag: 1
Health-based records unresolved in this snapshot: 0
Monitoring and reporting records: 35

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

Violations and what followed

Among 37 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 364 days. The interval uses the reporting periods and dates on file.

EPA health-based flag · Resolved

Single Turbidity Exceed (Enhanced SWTR)Violation 6993625 · Interim Enhanced Surface Water Treatment Rule · Interim and Long Term 1 Enhanced Surface Water Treatment Rule

Noncompliance period start September 1, 2022 · period end September 30, 2022 · first reported February 28, 2023 · EPA return-to-compliance field September 30, 2022

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
7179303	October 31, 2022	Resolving	State Compliance achieved
7179302	December 1, 2022	Informal	State Formal Notice of Violation issued

Monitoring or reporting · Resolved

Monitoring, RegularViolation 6993656 · Selenium · Inorganic Chemicals

Noncompliance period start January 1, 2022 · period end December 31, 2022 · first reported August 31, 2023 · EPA return-to-compliance field December 31, 2022

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
7179307	March 1, 2023	Informal	State Formal Notice of Violation issued
7179310	June 26, 2023	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 6993655 · Thallium, Total · Inorganic Chemicals

Noncompliance period start January 1, 2022 · period end December 31, 2022 · first reported August 31, 2023 · EPA return-to-compliance field December 31, 2022

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
7179307	March 1, 2023	Informal	State Formal Notice of Violation issued
7179310	June 26, 2023	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 6993654 · Beryllium, Total · Inorganic Chemicals

Noncompliance period start January 1, 2022 · period end December 31, 2022 · first reported August 31, 2023 · EPA return-to-compliance field December 31, 2022

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
7179307	March 1, 2023	Informal	State Formal Notice of Violation issued
7179310	June 26, 2023	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 6993653 · Antimony, Total · Inorganic Chemicals

Noncompliance period start January 1, 2022 · period end December 31, 2022 · first reported August 31, 2023 · EPA return-to-compliance field December 31, 2022

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
7179307	March 1, 2023	Informal	State Formal Notice of Violation issued
7179310	June 26, 2023	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 6993652 · Mercury · Inorganic Chemicals

Noncompliance period start January 1, 2022 · period end December 31, 2022 · first reported August 31, 2023 · EPA return-to-compliance field December 31, 2022

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
7179307	March 1, 2023	Informal	State Formal Notice of Violation issued
7179310	June 26, 2023	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 6993651 · CYANIDE · Inorganic Chemicals

Noncompliance period start January 1, 2022 · period end December 31, 2022 · first reported August 31, 2023 · EPA return-to-compliance field December 31, 2022

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
7179307	March 1, 2023	Informal	State Formal Notice of Violation issued
7179310	June 26, 2023	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 6993650 · Chromium · Inorganic Chemicals

Noncompliance period start January 1, 2022 · period end December 31, 2022 · first reported August 31, 2023 · EPA return-to-compliance field December 31, 2022

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
7179307	March 1, 2023	Informal	State Formal Notice of Violation issued
7179310	June 26, 2023	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 6993649 · Cadmium · Inorganic Chemicals

Noncompliance period start January 1, 2022 · period end December 31, 2022 · first reported August 31, 2023 · EPA return-to-compliance field December 31, 2022

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
7179307	March 1, 2023	Informal	State Formal Notice of Violation issued
7179310	June 26, 2023	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 6993648 · Barium · Inorganic Chemicals

Noncompliance period start January 1, 2022 · period end December 31, 2022 · first reported August 31, 2023 · EPA return-to-compliance field December 31, 2022

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
7179307	March 1, 2023	Informal	State Formal Notice of Violation issued
7179310	June 26, 2023	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 6993647 · Arsenic · Arsenic Rule

Noncompliance period start January 1, 2022 · period end December 31, 2022 · first reported August 31, 2023 · EPA return-to-compliance field December 31, 2022

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
7179307	March 1, 2023	Informal	State Formal Notice of Violation issued
7179310	June 26, 2023	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 6993646 · Selenium · Inorganic Chemicals

Noncompliance period start January 1, 2022 · period end December 31, 2022 · first reported August 31, 2023 · EPA return-to-compliance field December 31, 2022

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
7179306	March 1, 2023	Informal	State Formal Notice of Violation issued
7179309	June 26, 2023	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 6993645 · Thallium, Total · Inorganic Chemicals

Noncompliance period start January 1, 2022 · period end December 31, 2022 · first reported August 31, 2023 · EPA return-to-compliance field December 31, 2022

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
7179306	March 1, 2023	Informal	State Formal Notice of Violation issued
7179309	June 26, 2023	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 6993644 · Beryllium, Total · Inorganic Chemicals

Noncompliance period start January 1, 2022 · period end December 31, 2022 · first reported August 31, 2023 · EPA return-to-compliance field December 31, 2022

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
7179306	March 1, 2023	Informal	State Formal Notice of Violation issued
7179309	June 26, 2023	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 6993643 · Antimony, Total · Inorganic Chemicals

Noncompliance period start January 1, 2022 · period end December 31, 2022 · first reported August 31, 2023 · EPA return-to-compliance field December 31, 2022

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
7179306	March 1, 2023	Informal	State Formal Notice of Violation issued
7179309	June 26, 2023	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 6993642 · Mercury · Inorganic Chemicals

Noncompliance period start January 1, 2022 · period end December 31, 2022 · first reported August 31, 2023 · EPA return-to-compliance field December 31, 2022

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
7179306	March 1, 2023	Informal	State Formal Notice of Violation issued
7179309	June 26, 2023	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 6993641 · CYANIDE · Inorganic Chemicals

Noncompliance period start January 1, 2022 · period end December 31, 2022 · first reported August 31, 2023 · EPA return-to-compliance field December 31, 2022

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
7179306	March 1, 2023	Informal	State Formal Notice of Violation issued
7179309	June 26, 2023	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 6993640 · Chromium · Inorganic Chemicals

Noncompliance period start January 1, 2022 · period end December 31, 2022 · first reported August 31, 2023 · EPA return-to-compliance field December 31, 2022

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
7179306	March 1, 2023	Informal	State Formal Notice of Violation issued
7179309	June 26, 2023	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 6993639 · Cadmium · Inorganic Chemicals

Noncompliance period start January 1, 2022 · period end December 31, 2022 · first reported August 31, 2023 · EPA return-to-compliance field December 31, 2022

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
7179306	March 1, 2023	Informal	State Formal Notice of Violation issued
7179309	June 26, 2023	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 6993638 · Barium · Inorganic Chemicals

Noncompliance period start January 1, 2022 · period end December 31, 2022 · first reported August 31, 2023 · EPA return-to-compliance field December 31, 2022

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
7179306	March 1, 2023	Informal	State Formal Notice of Violation issued
7179309	June 26, 2023	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 6993637 · Arsenic · Arsenic Rule

Noncompliance period start January 1, 2022 · period end December 31, 2022 · first reported August 31, 2023 · EPA return-to-compliance field December 31, 2022

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
7179306	March 1, 2023	Informal	State Formal Notice of Violation issued
7179309	June 26, 2023	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 6993636 · Selenium · Inorganic Chemicals

Noncompliance period start January 1, 2022 · period end December 31, 2022 · first reported August 31, 2023 · EPA return-to-compliance field December 31, 2022

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
7179305	March 1, 2023	Informal	State Formal Notice of Violation issued
7179308	June 26, 2023	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 6993635 · Thallium, Total · Inorganic Chemicals

Noncompliance period start January 1, 2022 · period end December 31, 2022 · first reported August 31, 2023 · EPA return-to-compliance field December 31, 2022

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
7179305	March 1, 2023	Informal	State Formal Notice of Violation issued
7179308	June 26, 2023	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 6993634 · Beryllium, Total · Inorganic Chemicals

Noncompliance period start January 1, 2022 · period end December 31, 2022 · first reported August 31, 2023 · EPA return-to-compliance field December 31, 2022

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
7179305	March 1, 2023	Informal	State Formal Notice of Violation issued
7179308	June 26, 2023	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 6993633 · Antimony, Total · Inorganic Chemicals

Noncompliance period start January 1, 2022 · period end December 31, 2022 · first reported August 31, 2023 · EPA return-to-compliance field December 31, 2022

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
7179305	March 1, 2023	Informal	State Formal Notice of Violation issued
7179308	June 26, 2023	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 6993632 · Mercury · Inorganic Chemicals

Noncompliance period start January 1, 2022 · period end December 31, 2022 · first reported August 31, 2023 · EPA return-to-compliance field December 31, 2022

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
7179305	March 1, 2023	Informal	State Formal Notice of Violation issued
7179308	June 26, 2023	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 6993631 · CYANIDE · Inorganic Chemicals

Noncompliance period start January 1, 2022 · period end December 31, 2022 · first reported August 31, 2023 · EPA return-to-compliance field December 31, 2022

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
7179305	March 1, 2023	Informal	State Formal Notice of Violation issued
7179308	June 26, 2023	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 6993630 · Chromium · Inorganic Chemicals

Noncompliance period start January 1, 2022 · period end December 31, 2022 · first reported August 31, 2023 · EPA return-to-compliance field December 31, 2022

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
7179305	March 1, 2023	Informal	State Formal Notice of Violation issued
7179308	June 26, 2023	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 6993629 · Cadmium · Inorganic Chemicals

Noncompliance period start January 1, 2022 · period end December 31, 2022 · first reported August 31, 2023 · EPA return-to-compliance field December 31, 2022

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
7179305	March 1, 2023	Informal	State Formal Notice of Violation issued
7179308	June 26, 2023	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 6993628 · Barium · Inorganic Chemicals

Noncompliance period start January 1, 2022 · period end December 31, 2022 · first reported August 31, 2023 · EPA return-to-compliance field December 31, 2022

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
7179305	March 1, 2023	Informal	State Formal Notice of Violation issued
7179308	June 26, 2023	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 6993627 · Arsenic · Arsenic Rule

Noncompliance period start January 1, 2022 · period end December 31, 2022 · first reported August 31, 2023 · EPA return-to-compliance field December 31, 2022

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
7179305	March 1, 2023	Informal	State Formal Notice of Violation issued
7179308	June 26, 2023	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 6993624 · ETHYLENE DIBROMIDE · Synthetic Organic Chemicals

Noncompliance period start January 1, 2021 · period end March 31, 2021 · first reported August 31, 2022 · EPA return-to-compliance field March 31, 2021

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
7179300	May 6, 2021	Informal	State Formal Notice of Violation issued
7179301	June 30, 2021	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 6993623 · 1,2-DIBROMO-3-CHLOROPROPANE · Synthetic Organic Chemicals

Noncompliance period start January 1, 2021 · period end March 31, 2021 · first reported August 31, 2022 · EPA return-to-compliance field March 31, 2021

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
7179299	May 6, 2021	Informal	State Formal Notice of Violation issued
7179301	June 30, 2021	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 6993622 · ETHYLENE DIBROMIDE · Synthetic Organic Chemicals

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

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
7179295	February 5, 2021	Informal	State Formal Notice of Violation issued
7179297	March 31, 2021	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 6993621 · 1,2-DIBROMO-3-CHLOROPROPANE · Synthetic Organic Chemicals

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

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
7179295	February 5, 2021	Informal	State Formal Notice of Violation issued
7179297	March 31, 2021	Resolving	State Compliance achieved

Other or unclassified · Resolved
Consumer Confidence Report Complete Failure to ReportViolation 6993612 · Consumer Confidence Rule · Consumer Confidence Rule
Noncompliance period start July 1, 2020 · period end July 20, 2020 · first reported March 1, 2021 · EPA return-to-compliance field July 20, 2020

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
7179293 July 20, 2020 Resolving State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
7179293	July 20, 2020	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 6993620 · Nitrite · Nitrate Rule

Noncompliance period start January 1, 2020 · period end December 31, 2020 · first reported June 1, 2021 · EPA return-to-compliance field December 31, 2020

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
7179294	February 23, 2021	Informal	State Formal Notice of Violation issued
7179296	April 6, 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