NM3509723 · New Mexico

SAN YSIDRO WATER SUPPLY SYSTEM

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

Violation records shown: 51
EPA health-based flag: 23
Health-based records unresolved in this snapshot: 1
Monitoring and reporting records: 22

Counties listed by EPA · Sandoval County, New Mexico

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

Violations and what followed

Among 46 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.

EPA health-based flag · Unaddressed by formal action

Failure To Address DeficiencyViolation 60611 · Groundwater Rule · Ground Water Rule

Noncompliance period start July 12, 2025 · first reported December 3, 2025

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
83348	September 22, 2025	Informal	State Violation/Reminder Notice
83349	September 22, 2025	Informal	State Public Notification requested
83350	October 10, 2025	Informal	State Public Notification received

EPA health-based flag · Resolved

Failure To Address DeficiencyViolation 60612 · Groundwater Rule · Ground Water Rule

Noncompliance period start July 12, 2025 · period end April 22, 2026 · first reported December 3, 2025 · EPA return-to-compliance field April 22, 2026

5 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
83348	September 22, 2025	Informal	State Violation/Reminder Notice
83349	September 22, 2025	Informal	State Public Notification requested
83350	October 10, 2025	Informal	State Public Notification received
83359	April 22, 2026	Resolving	State Compliance achieved
83360	April 22, 2026	Resolving	State Compliance achieved

Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 60615 · Public Notice · Public Notice Rule and Revised PN Rule
Noncompliance period start November 24, 2024 · period end November 25, 2024 · first reported June 16, 2026 · EPA return-to-compliance field November 25, 2024

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
83357 November 25, 2024 Resolving State Compliance achieved
83358 May 26, 2026 Informal State Violation/Reminder Notice
Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 60613 · Public Notice · Public Notice Rule and Revised PN Rule
Noncompliance period start November 24, 2024 · period end November 25, 2024 · first reported June 16, 2026 · EPA return-to-compliance field November 25, 2024

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
83355 November 25, 2024 Resolving State Compliance achieved
83358 May 26, 2026 Informal State Violation/Reminder Notice

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
83357	November 25, 2024	Resolving	State Compliance achieved
83358	May 26, 2026	Informal	State Violation/Reminder Notice

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
83355	November 25, 2024	Resolving	State Compliance achieved
83358	May 26, 2026	Informal	State Violation/Reminder Notice

Monitoring or reporting · Resolved

LSL ReportingViolation 60610 · LEAD AND COPPER RULE REVISIONS · Lead and Copper Rule Revisions

Noncompliance period start October 17, 2024 · period end March 20, 2026 · first reported June 25, 2025 · EPA return-to-compliance field March 20, 2026

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
83344	June 2, 2025	Informal	State Violation/Reminder Notice
83345	June 2, 2025	Informal	State Public Notification requested
83347	August 4, 2025	Informal	State Public Notification received
83354	March 20, 2026	Resolving	State Compliance achieved

EPA health-based flag · Resolved

LSL InventoryViolation 60609 · LEAD AND COPPER RULE REVISIONS · Lead and Copper Rule Revisions

Noncompliance period start October 17, 2024 · period end March 20, 2026 · first reported June 25, 2025 · EPA return-to-compliance field March 20, 2026

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
83342	June 2, 2025	Informal	State Violation/Reminder Notice
83343	June 2, 2025	Informal	State Public Notification requested
83346	August 4, 2025	Informal	State Public Notification received
83353	March 20, 2026	Resolving	State Compliance achieved

EPA health-based flag · Resolved

Maximum Contaminant Level Violation, AverageViolation 60606 · Fluoride · Inorganic Chemicals

Noncompliance period start July 1, 2024 · period end September 30, 2024 · first reported March 31, 2025 · EPA return-to-compliance field September 30, 2024

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
83336	October 24, 2024	Informal	State Violation/Reminder Notice
83337	October 24, 2024	Informal	State Public Notification requested
83340	November 25, 2024	Informal	State Public Notification received
83352	April 18, 2025	Resolving	State Compliance achieved

EPA health-based flag · Resolved

Maximum Contaminant Level Violation, AverageViolation 60605 · Fluoride · Inorganic Chemicals

Noncompliance period start April 1, 2024 · period end June 30, 2024 · first reported August 16, 2024 · EPA return-to-compliance field June 30, 2024

5 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
83284	September 16, 2022	Formal	State Administrative/Compliance Order without penalty issued
83330	July 19, 2024	Informal	State Violation/Reminder Notice
83331	July 19, 2024	Informal	State Public Notification requested
83333	July 31, 2024	Informal	State Public Notification received
83352	April 18, 2025	Resolving	State Compliance achieved

EPA health-based flag · Resolved

Maximum Contaminant Level Violation, AverageViolation 60604 · Fluoride · Inorganic Chemicals

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

5 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
83284	September 16, 2022	Formal	State Administrative/Compliance Order without penalty issued
83330	July 19, 2024	Informal	State Violation/Reminder Notice
83331	July 19, 2024	Informal	State Public Notification requested
83333	July 31, 2024	Informal	State Public Notification received
83352	April 18, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 60602 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start November 1, 2023 · period end January 31, 2024 · first reported May 2, 2024 · EPA return-to-compliance field January 31, 2024

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
83327	April 11, 2024	Informal	State Violation/Reminder Notice
83328	April 11, 2024	Informal	State Public Notification requested
83329	May 3, 2024	Informal	State Public Notification received
83332	June 4, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 60601 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start November 1, 2023 · period end January 31, 2024 · first reported May 2, 2024 · EPA return-to-compliance field January 31, 2024

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
83327	April 11, 2024	Informal	State Violation/Reminder Notice
83328	April 11, 2024	Informal	State Public Notification requested
83329	May 3, 2024	Informal	State Public Notification received
83332	June 4, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 60600 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start October 1, 2023 · period end December 31, 2023 · first reported May 2, 2024 · EPA return-to-compliance field December 31, 2023

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
83327	April 11, 2024	Informal	State Violation/Reminder Notice
83328	April 11, 2024	Informal	State Public Notification requested
83329	May 3, 2024	Informal	State Public Notification received
83332	June 4, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 60599 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start October 1, 2023 · period end December 31, 2023 · first reported May 2, 2024 · EPA return-to-compliance field December 31, 2023

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
83327	April 11, 2024	Informal	State Violation/Reminder Notice
83328	April 11, 2024	Informal	State Public Notification requested
83329	May 3, 2024	Informal	State Public Notification received
83332	June 4, 2024	Resolving	State Compliance achieved

EPA health-based flag · Resolved

Maximum Contaminant Level Violation, AverageViolation 60597 · Fluoride · Inorganic Chemicals

Noncompliance period start October 1, 2023 · period end December 31, 2023 · first reported March 28, 2024 · EPA return-to-compliance field December 31, 2023

5 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
83284	September 16, 2022	Formal	State Administrative/Compliance Order without penalty issued
83317	November 15, 2023	Informal	State Violation/Reminder Notice
83318	November 15, 2023	Informal	State Public Notification requested
83322	December 1, 2023	Informal	State Public Notification received
83352	April 18, 2025	Resolving	State Compliance achieved

Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 60614 · Public Notice · Public Notice Rule and Revised PN Rule
Noncompliance period start September 22, 2023 · period end October 2, 2023 · first reported June 16, 2026 · EPA return-to-compliance field October 2, 2023

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
83356 October 2, 2023 Resolving State Compliance achieved
83358 May 26, 2026 Informal State Violation/Reminder Notice

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
83356	October 2, 2023	Resolving	State Compliance achieved
83358	May 26, 2026	Informal	State Violation/Reminder Notice

EPA health-based flag · Resolved

Maximum Contaminant Level Violation, AverageViolation 60594 · Fluoride · Inorganic Chemicals

Noncompliance period start July 1, 2023 · period end September 30, 2023 · first reported November 17, 2023 · EPA return-to-compliance field September 30, 2023

5 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
83284	September 16, 2022	Formal	State Administrative/Compliance Order without penalty issued
83311	September 27, 2023	Informal	State Violation/Reminder Notice
83312	September 27, 2023	Informal	State Public Notification requested
83313	October 2, 2023	Informal	State Public Notification received
83352	April 18, 2025	Resolving	State Compliance achieved

EPA health-based flag · Resolved

Maximum Contaminant Level Violation, AverageViolation 60593 · Arsenic · Arsenic Rule

Noncompliance period start April 1, 2023 · period end June 30, 2023 · first reported August 22, 2023 · EPA return-to-compliance field June 30, 2023

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
83306	June 13, 2023	Informal	State Violation/Reminder Notice
83307	June 13, 2023	Informal	State Public Notification requested
83308	June 28, 2023	Informal	State Public Notification received
83325	October 19, 2023	Resolving	State Compliance achieved

EPA health-based flag · Resolved

Maximum Contaminant Level Violation, AverageViolation 60592 · Fluoride · Inorganic Chemicals

Noncompliance period start April 1, 2023 · period end June 30, 2023 · first reported August 22, 2023 · EPA return-to-compliance field June 30, 2023

5 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
83284	September 16, 2022	Formal	State Administrative/Compliance Order without penalty issued
83303	June 5, 2023	Informal	State Violation/Reminder Notice
83304	June 5, 2023	Informal	State Public Notification requested
83305	June 5, 2023	Informal	State Public Notification received
83352	April 18, 2025	Resolving	State Compliance achieved

EPA health-based flag · Resolved

Maximum Contaminant Level Violation, AverageViolation 60591 · Arsenic · Arsenic Rule

Noncompliance period start January 1, 2023 · period end March 31, 2023 · first reported May 16, 2023 · EPA return-to-compliance field March 31, 2023

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
83299	March 10, 2023	Informal	State Violation/Reminder Notice
83300	March 10, 2023	Informal	State Public Notification requested
83301	March 15, 2023	Informal	State Public Notification received
83325	October 19, 2023	Resolving	State Compliance achieved

EPA health-based flag · Resolved

Maximum Contaminant Level Violation, AverageViolation 60589 · Fluoride · Inorganic Chemicals

Noncompliance period start January 1, 2023 · period end March 31, 2023 · first reported May 16, 2023 · EPA return-to-compliance field March 31, 2023

5 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
83284	September 16, 2022	Formal	State Administrative/Compliance Order without penalty issued
83297	March 10, 2023	Informal	State Violation/Reminder Notice
83298	March 10, 2023	Informal	State Public Notification requested
83302	March 15, 2023	Informal	State Public Notification received
83352	April 18, 2025	Resolving	State Compliance achieved

EPA health-based flag · Resolved

Maximum Contaminant Level Violation, AverageViolation 60607 · Arsenic · Arsenic Rule

Noncompliance period start October 1, 2022 · period end December 31, 2022 · first reported March 31, 2025 · EPA return-to-compliance field December 31, 2022

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
83351	March 31, 2023	Resolving	State Compliance achieved
83338	October 24, 2024	Informal	State Violation/Reminder Notice
83339	October 24, 2024	Informal	State Public Notification requested
83341	November 25, 2024	Informal	State Public Notification received

EPA health-based flag · Resolved

Maximum Contaminant Level Violation, AverageViolation 60590 · Fluoride · Inorganic Chemicals

Noncompliance period start October 1, 2022 · period end December 31, 2022 · first reported May 16, 2023 · EPA return-to-compliance field December 31, 2022

5 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
83284	September 16, 2022	Formal	State Administrative/Compliance Order without penalty issued
83297	March 10, 2023	Informal	State Violation/Reminder Notice
83298	March 10, 2023	Informal	State Public Notification requested
83302	March 15, 2023	Informal	State Public Notification received
83352	April 18, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 60586 · Arsenic · Arsenic Rule

Noncompliance period start October 1, 2022 · period end July 29, 2022 · first reported May 16, 2023 · EPA return-to-compliance field July 29, 2022

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
83295	July 29, 2022	Resolving	State Compliance achieved
83289	November 23, 2022	Informal	State Violation/Reminder Notice
83290	November 23, 2022	Informal	State Public Notification requested
83293	November 30, 2022	Informal	State Public Notification received

EPA health-based flag · Resolved

Maximum Contaminant Level Violation, AverageViolation 60608 · Arsenic · Arsenic Rule

Noncompliance period start July 1, 2022 · period end September 30, 2022 · first reported March 31, 2025 · EPA return-to-compliance field September 30, 2022

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
83351	March 31, 2023	Resolving	State Compliance achieved
83338	October 24, 2024	Informal	State Violation/Reminder Notice
83339	October 24, 2024	Informal	State Public Notification requested
83341	November 25, 2024	Informal	State Public Notification received

EPA health-based flag · Resolved

Maximum Contaminant Level Violation, AverageViolation 60577 · Fluoride · Inorganic Chemicals

Noncompliance period start July 1, 2022 · period end September 30, 2022 · first reported November 14, 2022 · EPA return-to-compliance field September 30, 2022

5 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
83284	September 16, 2022	Formal	State Administrative/Compliance Order without penalty issued
83285	October 26, 2022	Informal	State Violation/Reminder Notice
83286	October 26, 2022	Informal	State Public Notification requested
83287	November 1, 2022	Informal	State Public Notification received
83352	April 18, 2025	Resolving	State Compliance achieved

Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 60588 · Public Notice · Public Notice Rule and Revised PN Rule
Noncompliance period start May 8, 2022 · period end January 11, 2024 · first reported February 13, 2023 · EPA return-to-compliance field January 11, 2024

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
83326 January 11, 2024 Resolving State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
83326	January 11, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 60578 · Arsenic · Arsenic Rule

Noncompliance period start April 1, 2022 · period end June 30, 2022 · first reported February 13, 2023 · EPA return-to-compliance field June 30, 2022

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
83295	July 29, 2022	Resolving	State Compliance achieved
83289	November 23, 2022	Informal	State Violation/Reminder Notice
83290	November 23, 2022	Informal	State Public Notification requested
83293	November 30, 2022	Informal	State Public Notification received

EPA health-based flag · Resolved

Maximum Contaminant Level Violation, AverageViolation 60576 · Fluoride · Inorganic Chemicals

Noncompliance period start April 1, 2022 · period end June 30, 2022 · first reported November 14, 2022 · EPA return-to-compliance field June 30, 2022

5 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
83281	August 31, 2022	Informal	State Violation/Reminder Notice
83282	August 31, 2022	Informal	State Public Notification requested
83283	September 9, 2022	Informal	State Public Notification received
83284	September 16, 2022	Formal	State Administrative/Compliance Order without penalty issued
83352	April 18, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 60584 · Arsenic · Arsenic Rule

Noncompliance period start January 1, 2022 · period end March 31, 2022 · first reported February 13, 2023 · EPA return-to-compliance field March 31, 2022

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
83295	July 29, 2022	Resolving	State Compliance achieved
83289	November 23, 2022	Informal	State Violation/Reminder Notice
83290	November 23, 2022	Informal	State Public Notification requested
83293	November 30, 2022	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, RegularViolation 60580 · Fluoride · Inorganic Chemicals

Noncompliance period start January 1, 2022 · period end March 31, 2022 · first reported February 13, 2023 · EPA return-to-compliance field March 31, 2022

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
83296	April 25, 2022	Resolving	State Compliance achieved
83291	November 23, 2022	Informal	State Violation/Reminder Notice
83292	November 23, 2022	Informal	State Public Notification requested
83294	November 30, 2022	Informal	State Public Notification received

EPA health-based flag · Resolved

Maximum Contaminant Level Violation, AverageViolation 60575 · Fluoride · Inorganic Chemicals

Noncompliance period start January 1, 2022 · period end March 31, 2022 · first reported November 14, 2022 · EPA return-to-compliance field March 31, 2022

5 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
83281	August 31, 2022	Informal	State Violation/Reminder Notice
83282	August 31, 2022	Informal	State Public Notification requested
83283	September 9, 2022	Informal	State Public Notification received
83284	September 16, 2022	Formal	State Administrative/Compliance Order without penalty issued
83352	April 18, 2025	Resolving	State Compliance achieved

EPA health-based flag · Resolved

Maximum Contaminant Level Violation, AverageViolation 60574 · Fluoride · Inorganic Chemicals

Noncompliance period start October 1, 2021 · period end December 31, 2021 · first reported November 14, 2022 · EPA return-to-compliance field December 31, 2021

5 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
83281	August 31, 2022	Informal	State Violation/Reminder Notice
83282	August 31, 2022	Informal	State Public Notification requested
83283	September 9, 2022	Informal	State Public Notification received
83284	September 16, 2022	Formal	State Administrative/Compliance Order without penalty issued
83352	April 18, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 60571 · Fluoride · Inorganic Chemicals

Noncompliance period start October 1, 2021 · period end December 31, 2021 · first reported May 19, 2022 · EPA return-to-compliance field December 31, 2021

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
83278	February 23, 2022	Informal	State Violation/Reminder Notice
83279	February 23, 2022	Informal	State Public Notification requested
83280	March 21, 2022	Informal	State Public Notification received
83288	July 29, 2022	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 60569 · Arsenic · Arsenic Rule

Noncompliance period start October 1, 2021 · period end December 31, 2021 · first reported May 19, 2022 · EPA return-to-compliance field December 31, 2021

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
83278	February 23, 2022	Informal	State Violation/Reminder Notice
83279	February 23, 2022	Informal	State Public Notification requested
83280	March 21, 2022	Informal	State Public Notification received
83288	July 29, 2022	Resolving	State Compliance achieved

Other or unclassified · Resolved
Consumer Confidence Report Inadequate ReportingViolation 60558 · Consumer Confidence Rule · Consumer Confidence Rule
Noncompliance period start October 1, 2021 · period end December 7, 2021 · first reported February 23, 2022 · EPA return-to-compliance field December 7, 2021

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
83273 October 6, 2021 Informal State Violation/Reminder Notice
83276 December 7, 2021 Resolving State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
83273	October 6, 2021	Informal	State Violation/Reminder Notice
83276	December 7, 2021	Resolving	State Compliance achieved

EPA health-based flag · Resolved

Maximum Contaminant Level Violation, AverageViolation 60573 · Fluoride · Inorganic Chemicals

Noncompliance period start July 1, 2021 · period end September 30, 2021 · first reported November 14, 2022 · EPA return-to-compliance field September 30, 2021

5 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
83281	August 31, 2022	Informal	State Violation/Reminder Notice
83282	August 31, 2022	Informal	State Public Notification requested
83283	September 9, 2022	Informal	State Public Notification received
83284	September 16, 2022	Formal	State Administrative/Compliance Order without penalty issued
83352	April 18, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 60572 · Arsenic · Arsenic Rule

Noncompliance period start July 1, 2021 · period end September 30, 2021 · first reported May 19, 2022 · EPA return-to-compliance field September 30, 2021

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
83278	February 23, 2022	Informal	State Violation/Reminder Notice
83279	February 23, 2022	Informal	State Public Notification requested
83280	March 21, 2022	Informal	State Public Notification received
83288	July 29, 2022	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 60570 · Fluoride · Inorganic Chemicals

Noncompliance period start July 1, 2021 · period end September 30, 2021 · first reported May 19, 2022 · EPA return-to-compliance field September 30, 2021

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
83278	February 23, 2022	Informal	State Violation/Reminder Notice
83279	February 23, 2022	Informal	State Public Notification requested
83280	March 21, 2022	Informal	State Public Notification received
83288	July 29, 2022	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 60581 · Arsenic · Arsenic Rule

Noncompliance period start April 1, 2021 · period end June 30, 2021 · first reported February 13, 2023 · EPA return-to-compliance field June 30, 2021

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
83295	July 29, 2022	Resolving	State Compliance achieved
83289	November 23, 2022	Informal	State Violation/Reminder Notice
83290	November 23, 2022	Informal	State Public Notification requested
83293	November 30, 2022	Informal	State Public Notification received

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 60556 · Fluoride · Inorganic Chemicals

Noncompliance period start April 1, 2021 · period end June 30, 2021 · first reported September 8, 2021 · EPA return-to-compliance field June 30, 2021

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
83269	August 17, 2021	Informal	State Violation/Reminder Notice
83270	August 17, 2021	Informal	State Public Notification requested
83271	September 8, 2021	Informal	State Public Notification received
83284	September 16, 2022	Formal	State Administrative/Compliance Order without penalty issued

Monitoring or reporting · Resolved

Monitoring, RegularViolation 60579 · Arsenic · Arsenic Rule

Noncompliance period start January 1, 2021 · period end March 31, 2021 · first reported February 13, 2023 · EPA return-to-compliance field March 31, 2021

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
83295	July 29, 2022	Resolving	State Compliance achieved
83289	November 23, 2022	Informal	State Violation/Reminder Notice
83290	November 23, 2022	Informal	State Public Notification requested
83293	November 30, 2022	Informal	State Public Notification received

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 60553 · Fluoride · Inorganic Chemicals

Noncompliance period start January 1, 2021 · period end March 31, 2021 · first reported March 25, 2021 · EPA return-to-compliance field March 31, 2021

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
83264	February 22, 2021	Informal	State Violation/Reminder Notice
83265	February 22, 2021	Informal	State Public Notification requested
83266	March 1, 2021	Informal	State Public Notification received
83284	September 16, 2022	Formal	State Administrative/Compliance Order without penalty issued

Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 60557 · Public Notice · Public Notice Rule and Revised PN Rule
Noncompliance period start October 3, 2020 · period end November 24, 2020 · first reported November 29, 2021 · EPA return-to-compliance field November 24, 2020

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
83272 November 24, 2020 Resolving State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
83272	November 24, 2020	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 60603 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start October 1, 2020 · period end September 30, 2021 · first reported May 2, 2024 · EPA return-to-compliance field September 30, 2021

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
83327	April 11, 2024	Informal	State Violation/Reminder Notice
83328	April 11, 2024	Informal	State Public Notification requested
83329	May 3, 2024	Informal	State Public Notification received
83332	June 4, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 60582 · Arsenic · Arsenic Rule

Noncompliance period start October 1, 2020 · period end December 31, 2020 · first reported February 13, 2023 · 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
83295	July 29, 2022	Resolving	State Compliance achieved
83289	November 23, 2022	Informal	State Violation/Reminder Notice
83290	November 23, 2022	Informal	State Public Notification requested
83293	November 30, 2022	Informal	State Public Notification received

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 60554 · Fluoride · Inorganic Chemicals

Noncompliance period start October 1, 2020 · period end December 31, 2020 · first reported March 25, 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
83264	February 22, 2021	Informal	State Violation/Reminder Notice
83265	February 22, 2021	Informal	State Public Notification requested
83266	March 1, 2021	Informal	State Public Notification received
83284	September 16, 2022	Formal	State Administrative/Compliance Order without penalty issued

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 60596 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start July 1, 2020 · period end September 30, 2020 · first reported November 17, 2023 · EPA return-to-compliance field September 30, 2020

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
83324	October 20, 2020	Resolving	State Compliance achieved
83314	October 11, 2023	Informal	State Violation/Reminder Notice
83315	October 11, 2023	Informal	State Public Notification requested
83316	October 17, 2023	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, RegularViolation 60583 · Arsenic · Arsenic Rule

Noncompliance period start July 1, 2020 · period end September 30, 2020 · first reported February 13, 2023 · EPA return-to-compliance field September 30, 2020

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
83295	July 29, 2022	Resolving	State Compliance achieved
83289	November 23, 2022	Informal	State Violation/Reminder Notice
83290	November 23, 2022	Informal	State Public Notification requested
83293	November 30, 2022	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, RegularViolation 60585 · Arsenic · Arsenic Rule

Noncompliance period start April 1, 2020 · period end June 30, 2020 · first reported February 13, 2023 · EPA return-to-compliance field June 30, 2020

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
83295	July 29, 2022	Resolving	State Compliance achieved
83289	November 23, 2022	Informal	State Violation/Reminder Notice
83290	November 23, 2022	Informal	State Public Notification requested
83293	November 30, 2022	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, RegularViolation 60587 · Arsenic · Arsenic Rule

Noncompliance period start January 1, 2020 · period end March 31, 2020 · first reported February 13, 2023 · EPA return-to-compliance field March 31, 2020

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
83295	July 29, 2022	Resolving	State Compliance achieved
83289	November 23, 2022	Informal	State Violation/Reminder Notice
83290	November 23, 2022	Informal	State Public Notification requested
83293	November 30, 2022	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 60555 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start January 1, 2020 · period end July 31, 2020 · first reported September 8, 2021 · EPA return-to-compliance field July 31, 2020

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
83267	May 7, 2021	Informal	State Violation/Reminder Notice
83268	May 7, 2021	Informal	State Public Notification requested
83274	July 13, 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