NM3501221 · New Mexico

CORDOVA MDWCA

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

Violation records shown: 71
EPA health-based flag: 12
Health-based records unresolved in this snapshot: 0
Monitoring and reporting records: 32

Counties listed by EPA · Rio Arriba 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 68 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 37 days. The interval uses the reporting periods and dates on file.

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 74605 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start March 1, 2026 · period end March 31, 2026 · first reported June 16, 2026 · EPA return-to-compliance field March 31, 2026

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
186	April 21, 2026	Resolving	State Compliance achieved
184	May 11, 2026	Informal	State Violation/Reminder Notice
185	May 11, 2026	Informal	State Public Notification requested

Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 74579 · Public Notice · Public Notice Rule and Revised PN Rule
Noncompliance period start February 7, 2026 · period end March 21, 2026 · first reported June 16, 2026 · EPA return-to-compliance field March 21, 2026

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
176 March 21, 2026 Resolving State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
176	March 21, 2026	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 74606 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start February 1, 2026 · period end February 28, 2026 · first reported June 16, 2026 · EPA return-to-compliance field February 28, 2026

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
186	April 21, 2026	Resolving	State Compliance achieved
184	May 11, 2026	Informal	State Violation/Reminder Notice
185	May 11, 2026	Informal	State Public Notification requested

Monitoring or reporting · Resolved

Monitoring, Routine (RTCR)Violation 74578 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start February 1, 2026 · period end February 28, 2026 · first reported June 16, 2026 · EPA return-to-compliance field February 28, 2026

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
164	March 18, 2026	Resolving	State Compliance achieved
162	April 6, 2026	Informal	State Violation/Reminder Notice
163	April 6, 2026	Informal	State Public Notification requested

Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 74582 · Public Notice · Public Notice Rule and Revised PN Rule
Noncompliance period start December 12, 2025 · period end March 21, 2026 · first reported June 16, 2026 · EPA return-to-compliance field March 21, 2026

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
176 March 21, 2026 Resolving State Compliance achieved
Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 74583 · Public Notice · Public Notice Rule and Revised PN Rule
Noncompliance period start November 28, 2025 · period end March 21, 2026 · first reported June 16, 2026 · EPA return-to-compliance field March 21, 2026

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
176 March 21, 2026 Resolving State Compliance achieved
Other or unclassified · Unaddressed by formal action
Consumer Confidence Report Inadequate ReportingViolation 74575 · Consumer Confidence Rule · Consumer Confidence Rule
Noncompliance period start October 1, 2025 · first reported June 16, 2026

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
159 March 24, 2026 Informal State Violation/Reminder Notice

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
176	March 21, 2026	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
176	March 21, 2026	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
159	March 24, 2026	Informal	State Violation/Reminder Notice

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 74607 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start September 1, 2025 · period end September 30, 2025 · first reported June 16, 2026 · EPA return-to-compliance field September 30, 2025

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
187	December 9, 2025	Resolving	State Compliance achieved
184	May 11, 2026	Informal	State Violation/Reminder Notice
185	May 11, 2026	Informal	State Public Notification requested

Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 74580 · Public Notice · Public Notice Rule and Revised PN Rule
Noncompliance period start July 26, 2025 · period end March 21, 2026 · first reported June 16, 2026 · EPA return-to-compliance field March 21, 2026

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
176 March 21, 2026 Resolving State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
176	March 21, 2026	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 74608 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start July 1, 2025 · period end July 31, 2025 · first reported June 16, 2026 · EPA return-to-compliance field July 31, 2025

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
187	December 9, 2025	Resolving	State Compliance achieved
184	May 11, 2026	Informal	State Violation/Reminder Notice
185	May 11, 2026	Informal	State Public Notification requested

Monitoring or reporting · Resolved

Monitoring, Routine (RTCR)Violation 74571 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start July 1, 2025 · period end July 31, 2025 · first reported December 3, 2025 · EPA return-to-compliance field July 31, 2025

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
153	August 27, 2025	Resolving	State Compliance achieved
150	August 29, 2025	Informal	State Violation/Reminder Notice
151	August 29, 2025	Informal	State Public Notification requested
175	April 14, 2026	Informal	State Public Notification received

Other or unclassified · Resolved
Consumer Confidence Report Complete Failure to ReportViolation 74570 · Consumer Confidence Rule · Consumer Confidence Rule
Noncompliance period start July 1, 2025 · period end August 22, 2025 · first reported December 3, 2025 · EPA return-to-compliance field August 22, 2025

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
148 August 11, 2025 Informal State Violation/Reminder Notice
149 August 22, 2025 Resolving State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
148	August 11, 2025	Informal	State Violation/Reminder Notice
149	August 22, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 74609 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start November 1, 2024 · period end November 30, 2024 · first reported June 16, 2026 · EPA return-to-compliance field November 30, 2024

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
188	March 15, 2025	Resolving	State Compliance achieved
184	May 11, 2026	Informal	State Violation/Reminder Notice
185	May 11, 2026	Informal	State Public Notification requested

Monitoring or reporting · Resolved

Monitoring, Routine (RTCR)Violation 74567 · Revised Total Coliform Rule · Revised Total Coliform Rule

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

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
143	December 21, 2024	Resolving	State Compliance achieved
141	February 6, 2025	Informal	State Violation/Reminder Notice
142	February 6, 2025	Informal	State Public Notification requested
173	April 14, 2026	Informal	State Public Notification received

EPA health-based flag · Resolved

LSL InventoryViolation 74569 · LEAD AND COPPER RULE REVISIONS · Lead and Copper Rule Revisions

Noncompliance period start October 17, 2024 · period end May 15, 2026 · first reported June 25, 2025 · EPA return-to-compliance field May 15, 2026

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
146	April 17, 2025	Informal	State Violation/Reminder Notice
147	April 17, 2025	Informal	State Public Notification requested
9999900000000000001	May 13, 2026	Formal	Federal Final Administrative Order issued
189	May 15, 2026	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

LSL ReportingViolation 74568 · LEAD AND COPPER RULE REVISIONS · Lead and Copper Rule Revisions

Noncompliance period start October 17, 2024 · period end May 15, 2026 · first reported June 25, 2025 · EPA return-to-compliance field May 15, 2026

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
144	April 17, 2025	Informal	State Violation/Reminder Notice
145	April 17, 2025	Informal	State Public Notification requested
9999900000000000001	May 13, 2026	Formal	Federal Final Administrative Order issued
190	May 15, 2026	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 74610 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start October 1, 2024 · period end October 31, 2024 · first reported June 16, 2026 · EPA return-to-compliance field October 31, 2024

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
188	March 15, 2025	Resolving	State Compliance achieved
184	May 11, 2026	Informal	State Violation/Reminder Notice
185	May 11, 2026	Informal	State Public Notification requested

Monitoring or reporting · Resolved

Monitoring, Routine (RTCR)Violation 74566 · Revised Total Coliform Rule · Revised Total Coliform Rule

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

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
136	December 11, 2024	Informal	State Violation/Reminder Notice
137	December 11, 2024	Informal	State Public Notification requested
152	December 21, 2024	Resolving	State Compliance achieved
172	April 14, 2026	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 74557 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts Rule

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

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
165	July 24, 2024	Resolving	State Compliance achieved
120	July 25, 2024	Informal	State Violation/Reminder Notice
121	July 25, 2024	Informal	State Public Notification requested
171	April 14, 2026	Informal	State Public Notification received

EPA health-based flag · Resolved

Failure To Address DeficiencyViolation 74564 · Groundwater Rule · Ground Water Rule

Noncompliance period start February 24, 2024 · period end March 26, 2024 · first reported March 31, 2025 · EPA return-to-compliance field March 26, 2024

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
133	March 26, 2024	Resolving	State Compliance achieved
129	November 27, 2024	Informal	State Violation/Reminder Notice
130	November 27, 2024	Informal	State Public Notification requested
174	April 14, 2026	Informal	State Public Notification received

EPA health-based flag · Resolved

Failure To Address DeficiencyViolation 74563 · Groundwater Rule · Ground Water Rule

Noncompliance period start February 24, 2024 · period end March 26, 2024 · first reported March 31, 2025 · EPA return-to-compliance field March 26, 2024

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
133	March 26, 2024	Resolving	State Compliance achieved
129	November 27, 2024	Informal	State Violation/Reminder Notice
130	November 27, 2024	Informal	State Public Notification requested
174	April 14, 2026	Informal	State Public Notification received

EPA health-based flag · Resolved

Failure To Address DeficiencyViolation 74562 · Groundwater Rule · Ground Water Rule

Noncompliance period start February 24, 2024 · period end March 26, 2024 · first reported March 31, 2025 · EPA return-to-compliance field March 26, 2024

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
133	March 26, 2024	Resolving	State Compliance achieved
129	November 27, 2024	Informal	State Violation/Reminder Notice
130	November 27, 2024	Informal	State Public Notification requested
174	April 14, 2026	Informal	State Public Notification received

EPA health-based flag · Resolved

Failure To Address DeficiencyViolation 74561 · Groundwater Rule · Ground Water Rule

Noncompliance period start February 24, 2024 · period end March 26, 2024 · first reported March 31, 2025 · EPA return-to-compliance field March 26, 2024

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
133	March 26, 2024	Resolving	State Compliance achieved
129	November 27, 2024	Informal	State Violation/Reminder Notice
130	November 27, 2024	Informal	State Public Notification requested
174	April 14, 2026	Informal	State Public Notification received

EPA health-based flag · Resolved

Failure To Address DeficiencyViolation 74560 · Groundwater Rule · Ground Water Rule

Noncompliance period start February 24, 2024 · period end March 26, 2024 · first reported March 31, 2025 · EPA return-to-compliance field March 26, 2024

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
133	March 26, 2024	Resolving	State Compliance achieved
129	November 27, 2024	Informal	State Violation/Reminder Notice
130	November 27, 2024	Informal	State Public Notification requested
174	April 14, 2026	Informal	State Public Notification received

EPA health-based flag · Resolved

Failure To Address DeficiencyViolation 74559 · Groundwater Rule · Ground Water Rule

Noncompliance period start February 24, 2024 · period end March 26, 2024 · first reported March 31, 2025 · EPA return-to-compliance field March 26, 2024

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
133	March 26, 2024	Resolving	State Compliance achieved
129	November 27, 2024	Informal	State Violation/Reminder Notice
130	November 27, 2024	Informal	State Public Notification requested
174	April 14, 2026	Informal	State Public Notification received

EPA health-based flag · Resolved

Failure To Address DeficiencyViolation 74558 · Groundwater Rule · Ground Water Rule

Noncompliance period start February 24, 2024 · period end March 26, 2024 · first reported March 31, 2025 · EPA return-to-compliance field March 26, 2024

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
133	March 26, 2024	Resolving	State Compliance achieved
129	November 27, 2024	Informal	State Violation/Reminder Notice
130	November 27, 2024	Informal	State Public Notification requested
174	April 14, 2026	Informal	State Public Notification received

Other or unclassified · Resolved

Failure to Consult with StateViolation 74565 · Groundwater Rule · Ground Water Rule

Noncompliance period start November 7, 2023 · period end November 15, 2024 · first reported March 31, 2025 · EPA return-to-compliance field November 15, 2024

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
138	November 15, 2024	Resolving	State Compliance achieved
134	November 27, 2024	Informal	State Violation/Reminder Notice
135	November 27, 2024	Informal	State Public Notification requested
170	April 14, 2026	Informal	State Public Notification received

Other or unclassified · Resolved
Public Notification Violation without NPDWR ViolationViolation 74588 · Public Notice · Public Notice Rule and Revised PN Rule
Noncompliance period start June 16, 2023 · period end July 18, 2023 · first reported June 16, 2026 · EPA return-to-compliance field July 18, 2023

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
169 July 18, 2023 Resolving State Compliance achieved
Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 74586 · Public Notice · Public Notice Rule and Revised PN Rule
Noncompliance period start February 16, 2023 · period end June 5, 2023 · first reported June 16, 2026 · EPA return-to-compliance field June 5, 2023

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
166 June 5, 2023 Resolving State Compliance achieved
Other or unclassified · Resolved
Consumer Confidence Report Inadequate ReportingViolation 74554 · Consumer Confidence Rule · Consumer Confidence Rule
Noncompliance period start October 1, 2022 · period end July 18, 2023 · first reported May 16, 2023 · EPA return-to-compliance field July 18, 2023

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
101 October 17, 2022 Informal State Violation/Reminder Notice
104 July 18, 2023 Resolving State Compliance achieved
Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 74555 · Public Notice · Public Notice Rule and Revised PN Rule
Noncompliance period start September 23, 2022 · period end June 5, 2023 · first reported February 13, 2023 · EPA return-to-compliance field June 5, 2023

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
106 June 5, 2023 Resolving State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
169	July 18, 2023	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
166	June 5, 2023	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
101	October 17, 2022	Informal	State Violation/Reminder Notice
104	July 18, 2023	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
106	June 5, 2023	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Follow-up Or Routine LCR Tap M/RViolation 74550 · Lead and Copper Rule · Lead and Copper Rule

Noncompliance period start October 1, 2021 · period end July 21, 2023 · first reported May 19, 2022 · EPA return-to-compliance field July 21, 2023

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
96	February 15, 2022	Informal	State Violation/Reminder Notice
97	February 15, 2022	Informal	State Public Notification requested
105	July 18, 2023	Informal	State Public Notification received
119	July 21, 2023	Resolving	State Compliance achieved

Other or unclassified · Resolved
Public Notification Violation without NPDWR ViolationViolation 74549 · Public Notice · Public Notice Rule and Revised PN Rule
Noncompliance period start November 26, 2020 · period end June 5, 2023 · first reported November 29, 2021 · EPA return-to-compliance field June 5, 2023

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
108 June 5, 2023 Resolving State Compliance achieved
Other or unclassified · Resolved
Consumer Confidence Report Inadequate ReportingViolation 74542 · Consumer Confidence Rule · Consumer Confidence Rule
Noncompliance period start October 1, 2020 · period end January 13, 2021 · first reported December 15, 2020 · EPA return-to-compliance field January 13, 2021

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
87 October 19, 2020 Informal State Violation/Reminder Notice
88 January 13, 2021 Resolving State Compliance achieved
Other or unclassified · Resolved
Consumer Confidence Report Complete Failure to ReportViolation 74543 · Consumer Confidence Rule · Consumer Confidence Rule
Noncompliance period start July 1, 2020 · period end January 13, 2021 · first reported February 22, 2021 · EPA return-to-compliance field January 13, 2021

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
89 January 13, 2021 Informal State Violation/Reminder Notice
90 January 13, 2021 Resolving State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
108	June 5, 2023	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
87	October 19, 2020	Informal	State Violation/Reminder Notice
88	January 13, 2021	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
89	January 13, 2021	Informal	State Violation/Reminder Notice
90	January 13, 2021	Resolving	State Compliance achieved

EPA health-based flag · Resolved

Failure To Address DeficiencyViolation 74553 · Groundwater Rule · Ground Water Rule

Noncompliance period start May 27, 2020 · period end March 26, 2024 · first reported November 14, 2022 · EPA return-to-compliance field March 26, 2024

5 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
100	August 23, 2022	Informal	State Public Notification requested
99	August 23, 2022	Informal	State Violation/Reminder Notice
107	July 18, 2023	Informal	State Public Notification received
125	March 26, 2024	Resolving	State Compliance achieved
126	March 26, 2024	Resolving	State Compliance achieved

EPA health-based flag · Resolved

Failure To Address DeficiencyViolation 74552 · Groundwater Rule · Ground Water Rule

Noncompliance period start May 27, 2020 · period end November 25, 2024 · first reported November 14, 2022 · EPA return-to-compliance field November 25, 2024

5 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
100	August 23, 2022	Informal	State Public Notification requested
99	August 23, 2022	Informal	State Violation/Reminder Notice
107	July 18, 2023	Informal	State Public Notification received
123	November 25, 2024	Resolving	State Compliance achieved
124	November 25, 2024	Resolving	State Compliance achieved

EPA health-based flag · Resolved

Failure To Address DeficiencyViolation 74551 · Groundwater Rule · Ground Water Rule

Noncompliance period start May 27, 2020 · period end March 26, 2024 · first reported November 14, 2022 · EPA return-to-compliance field March 26, 2024

5 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
100	August 23, 2022	Informal	State Public Notification requested
99	August 23, 2022	Informal	State Violation/Reminder Notice
107	July 18, 2023	Informal	State Public Notification received
127	March 26, 2024	Resolving	State Compliance achieved
128	March 26, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 74545 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start August 1, 2019 · period end July 31, 2020 · first reported March 25, 2021 · EPA return-to-compliance field July 31, 2020

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
91	February 11, 2021	Informal	State Violation/Reminder Notice
92	February 11, 2021	Informal	State Public Notification requested
94	June 21, 2021	Informal	State Public Notification received
93	July 6, 2021	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 74544 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start August 1, 2019 · period end July 31, 2020 · first reported March 25, 2021 · EPA return-to-compliance field July 31, 2020

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
91	February 11, 2021	Informal	State Violation/Reminder Notice
92	February 11, 2021	Informal	State Public Notification requested
94	June 21, 2021	Informal	State Public Notification received
93	July 6, 2021	Resolving	State Compliance achieved

Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 74546 · Public Notice · Public Notice Rule and Revised PN Rule
Noncompliance period start April 3, 2017 · period end June 1, 2018 · first reported November 29, 2021 · EPA return-to-compliance field June 1, 2018

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
139 June 1, 2018 Resolving State Compliance achieved
Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 74589 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts Rule
Noncompliance period start March 1, 2017 · period end March 31, 2017 · first reported June 16, 2026 · EPA return-to-compliance field March 31, 2017

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
183 April 27, 2017 Resolving State Compliance achieved
177 May 11, 2026 Informal State Violation/Reminder Notice
Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 74548 · Public Notice · Public Notice Rule and Revised PN Rule
Noncompliance period start February 10, 2017 · period end April 8, 2022 · first reported November 29, 2021 · EPA return-to-compliance field April 8, 2022

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
98 April 8, 2022 Resolving State Compliance achieved
Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 74590 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts Rule
Noncompliance period start February 1, 2017 · period end February 28, 2017 · first reported June 16, 2026 · EPA return-to-compliance field February 28, 2017

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
183 April 27, 2017 Resolving State Compliance achieved
177 May 11, 2026 Informal State Violation/Reminder Notice
Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 74591 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts Rule
Noncompliance period start January 1, 2017 · period end January 31, 2017 · first reported June 16, 2026 · EPA return-to-compliance field January 31, 2017

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
183 April 27, 2017 Resolving State Compliance achieved
177 May 11, 2026 Informal State Violation/Reminder Notice
Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 74592 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts Rule
Noncompliance period start December 1, 2016 · period end December 31, 2016 · first reported June 16, 2026 · EPA return-to-compliance field December 31, 2016

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
183 April 27, 2017 Resolving State Compliance achieved
177 May 11, 2026 Informal State Violation/Reminder Notice
Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 74593 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts Rule
Noncompliance period start November 1, 2016 · period end November 30, 2016 · first reported June 16, 2026 · EPA return-to-compliance field November 30, 2016

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
183 April 27, 2017 Resolving State Compliance achieved
177 May 11, 2026 Informal State Violation/Reminder Notice
Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 74594 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts Rule
Noncompliance period start October 1, 2016 · period end October 31, 2016 · first reported June 16, 2026 · EPA return-to-compliance field October 31, 2016

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
183 April 27, 2017 Resolving State Compliance achieved
177 May 11, 2026 Informal State Violation/Reminder Notice
Other or unclassified · Resolved
Consumer Confidence Report Inadequate ReportingViolation 74574 · Consumer Confidence Rule · Consumer Confidence Rule
Noncompliance period start October 1, 2016 · period end March 13, 2017 · first reported June 16, 2026 · EPA return-to-compliance field March 13, 2017

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
161 March 13, 2017 Resolving State Compliance achieved
160 March 24, 2026 Informal State Violation/Reminder Notice
Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 74595 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts Rule
Noncompliance period start September 1, 2016 · period end September 30, 2016 · first reported June 16, 2026 · EPA return-to-compliance field September 30, 2016

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
183 April 27, 2017 Resolving State Compliance achieved
177 May 11, 2026 Informal State Violation/Reminder Notice
Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 74596 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts Rule
Noncompliance period start August 1, 2016 · period end August 31, 2016 · first reported June 16, 2026 · EPA return-to-compliance field August 31, 2016

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
183 April 27, 2017 Resolving State Compliance achieved
177 May 11, 2026 Informal State Violation/Reminder Notice
Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 74597 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts Rule
Noncompliance period start July 1, 2016 · period end July 31, 2016 · first reported June 16, 2026 · EPA return-to-compliance field July 31, 2016

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
183 April 27, 2017 Resolving State Compliance achieved
177 May 11, 2026 Informal State Violation/Reminder Notice
Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 74547 · Public Notice · Public Notice Rule and Revised PN Rule
Noncompliance period start June 4, 2016 · period end October 27, 2021 · first reported November 29, 2021 · EPA return-to-compliance field October 27, 2021

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
95 October 27, 2021 Resolving State Compliance achieved
Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 74598 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts Rule
Noncompliance period start June 1, 2016 · period end June 30, 2016 · first reported June 16, 2026 · EPA return-to-compliance field June 30, 2016

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
182 July 25, 2016 Resolving State Compliance achieved
177 May 11, 2026 Informal State Violation/Reminder Notice

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
139	June 1, 2018	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
183	April 27, 2017	Resolving	State Compliance achieved
177	May 11, 2026	Informal	State Violation/Reminder Notice

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
98	April 8, 2022	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
183	April 27, 2017	Resolving	State Compliance achieved
177	May 11, 2026	Informal	State Violation/Reminder Notice

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
183	April 27, 2017	Resolving	State Compliance achieved
177	May 11, 2026	Informal	State Violation/Reminder Notice

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
183	April 27, 2017	Resolving	State Compliance achieved
177	May 11, 2026	Informal	State Violation/Reminder Notice

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
183	April 27, 2017	Resolving	State Compliance achieved
177	May 11, 2026	Informal	State Violation/Reminder Notice

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
183	April 27, 2017	Resolving	State Compliance achieved
177	May 11, 2026	Informal	State Violation/Reminder Notice

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
161	March 13, 2017	Resolving	State Compliance achieved
160	March 24, 2026	Informal	State Violation/Reminder Notice

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
183	April 27, 2017	Resolving	State Compliance achieved
177	May 11, 2026	Informal	State Violation/Reminder Notice

EPA health-based flag · Resolved

Failure To Address DeficiencyViolation 74530 · Groundwater Rule · Ground Water Rule

Noncompliance period start May 4, 2016 · period end August 14, 2024 · first reported December 22, 2017 · EPA return-to-compliance field August 14, 2024

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
62	May 4, 2016	Informal	State Violation/Reminder Notice
63	May 4, 2016	Informal	State Public Notification requested
72	October 1, 2018	Resolving	State Compliance achieved
122	August 14, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 74599 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts Rule
Noncompliance period start December 1, 2015 · period end December 31, 2015 · first reported June 16, 2026 · EPA return-to-compliance field December 31, 2015

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
181 January 25, 2016 Resolving State Compliance achieved
177 May 11, 2026 Informal State Violation/Reminder Notice
Other or unclassified · Resolved
Consumer Confidence Report Inadequate ReportingViolation 74576 · Consumer Confidence Rule · Consumer Confidence Rule
Noncompliance period start October 1, 2015 · period end March 13, 2017 · first reported June 16, 2026 · EPA return-to-compliance field March 13, 2017

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
161 March 13, 2017 Resolving State Compliance achieved
160 March 24, 2026 Informal State Violation/Reminder Notice
Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 74600 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts Rule
Noncompliance period start September 1, 2015 · period end September 30, 2015 · first reported June 16, 2026 · EPA return-to-compliance field September 30, 2015

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
180 October 28, 2015 Resolving State Compliance achieved
177 May 11, 2026 Informal State Violation/Reminder Notice
Other or unclassified · Resolved
Consumer Confidence Report Inadequate ReportingViolation 74577 · Consumer Confidence Rule · Consumer Confidence Rule
Noncompliance period start October 1, 2014 · period end March 13, 2017 · first reported June 16, 2026 · EPA return-to-compliance field March 13, 2017

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
161 March 13, 2017 Resolving State Compliance achieved
160 March 24, 2026 Informal State Violation/Reminder Notice
Other or unclassified · Resolved
Consumer Confidence Report Complete Failure to ReportViolation 74573 · Consumer Confidence Rule · Consumer Confidence Rule
Noncompliance period start July 1, 2014 · period end March 8, 2017 · first reported March 31, 2026 · EPA return-to-compliance field March 8, 2017

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
158 March 8, 2017 Resolving State Compliance achieved
156 January 29, 2026 Informal State Violation/Reminder Notice
Other or unclassified · Resolved
Consumer Confidence Report Complete Failure to ReportViolation 74572 · Consumer Confidence Rule · Consumer Confidence Rule
Noncompliance period start July 1, 2013 · period end March 8, 2017 · first reported March 31, 2026 · EPA return-to-compliance field March 8, 2017

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
158 March 8, 2017 Resolving State Compliance achieved
157 January 29, 2026 Informal State Violation/Reminder Notice

Monitoring or reporting · Unaddressed by formal action

Monitoring, Source Water (GWR)Violation 74504 · E. COLI · Ground Water Rule

Noncompliance period start May 2, 2013 · first reported August 16, 2013

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
11	June 3, 2013	Informal	State Violation/Reminder Notice
12	June 3, 2013	Informal	State Public Notification requested
70	March 19, 2018	Informal	State Public Notification received

Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 74601 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts Rule
Noncompliance period start April 1, 2013 · period end April 30, 2013 · first reported June 16, 2026 · EPA return-to-compliance field April 30, 2013

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
179 May 7, 2013 Resolving State Compliance achieved
177 May 11, 2026 Informal State Violation/Reminder Notice
Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 74585 · Public Notice · Public Notice Rule and Revised PN Rule
Noncompliance period start November 10, 2012 · period end April 22, 2026 · first reported June 16, 2026 · EPA return-to-compliance field April 22, 2026

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
167 April 22, 2026 Resolving State Compliance achieved
Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 74581 · Public Notice · Public Notice Rule and Revised PN Rule
Noncompliance period start October 14, 2012 · period end April 22, 2026 · first reported June 16, 2026 · EPA return-to-compliance field April 22, 2026

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
167 April 22, 2026 Resolving State Compliance achieved
Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 74584 · Public Notice · Public Notice Rule and Revised PN Rule
Noncompliance period start September 7, 2012 · period end April 22, 2026 · first reported June 16, 2026 · EPA return-to-compliance field April 22, 2026

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
167 April 22, 2026 Resolving State Compliance achieved
Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 74587 · Public Notice · Public Notice Rule and Revised PN Rule
Noncompliance period start December 9, 2011 · period end April 22, 2026 · first reported June 16, 2026 · EPA return-to-compliance field April 22, 2026

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
168 April 22, 2026 Resolving State Compliance achieved
Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 74602 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts Rule
Noncompliance period start October 1, 2011 · period end October 31, 2011 · first reported June 16, 2026 · EPA return-to-compliance field October 31, 2011

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
178 November 2, 2011 Resolving State Compliance achieved
177 May 11, 2026 Informal State Violation/Reminder Notice
Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 74603 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts Rule
Noncompliance period start September 1, 2011 · period end September 30, 2011 · first reported June 16, 2026 · EPA return-to-compliance field September 30, 2011

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
178 November 2, 2011 Resolving State Compliance achieved
177 May 11, 2026 Informal State Violation/Reminder Notice
Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 74604 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts Rule
Noncompliance period start August 1, 2011 · period end August 31, 2011 · first reported June 16, 2026 · EPA return-to-compliance field August 31, 2011

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
178 November 2, 2011 Resolving State Compliance achieved
177 May 11, 2026 Informal State Violation/Reminder Notice

Other or unclassified · Addressed by formal action

Consumer Confidence Report Complete Failure to ReportViolation 104 · Consumer Confidence Rule · Consumer Confidence Rule

Noncompliance period start October 19, 1999 · first reported November 15, 2005

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
1E00	May 5, 2000	Informal	Federal issued Formal Notice of Violation
2E00	September 22, 2000	Formal	Federal Final Administrative Order issued

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

Action ID	Date	Category	EPA action type
182	July 25, 2016	Resolving	State Compliance achieved
177	May 11, 2026	Informal	State Violation/Reminder Notice

Action ID	Date	Category	EPA action type
181	January 25, 2016	Resolving	State Compliance achieved
177	May 11, 2026	Informal	State Violation/Reminder Notice

Action ID	Date	Category	EPA action type
180	October 28, 2015	Resolving	State Compliance achieved
177	May 11, 2026	Informal	State Violation/Reminder Notice

Action ID	Date	Category	EPA action type
158	March 8, 2017	Resolving	State Compliance achieved
156	January 29, 2026	Informal	State Violation/Reminder Notice

Action ID	Date	Category	EPA action type
179	May 7, 2013	Resolving	State Compliance achieved
177	May 11, 2026	Informal	State Violation/Reminder Notice

Action ID	Date	Category	EPA action type
178	November 2, 2011	Resolving	State Compliance achieved
177	May 11, 2026	Informal	State Violation/Reminder Notice