NM3507829 · New Mexico

UPPER ARROYO HONDO MDWCA

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

Violation records shown: 36
EPA health-based flag: 6
Health-based records unresolved in this snapshot: 3
Monitoring and reporting records: 5

Counties listed by EPA · Taos 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 31 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 1,065 days. The interval uses the reporting periods and dates on file.

EPA health-based flag · Addressed by formal action

LSL InventoryViolation 133105 · LEAD AND COPPER RULE REVISIONS · Lead and Copper Rule Revisions

Noncompliance period start October 17, 2024 · first reported June 25, 2025

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
188	April 17, 2025	Informal	State Violation/Reminder Notice
189	April 17, 2025	Informal	State Public Notification requested
9999900000000000001	May 11, 2026	Formal	Federal Final Administrative Order issued

EPA health-based flag · Unaddressed by formal action

Failure To Address DeficiencyViolation 133097 · Groundwater Rule · Ground Water Rule

Noncompliance period start February 2, 2023 · first reported March 28, 2024

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
172	December 20, 2023	Informal	State Violation/Reminder Notice
173	December 20, 2023	Informal	State Public Notification requested

EPA health-based flag · Unaddressed by formal action

Failure To Address DeficiencyViolation 133096 · Groundwater Rule · Ground Water Rule

Noncompliance period start February 2, 2023 · first reported March 28, 2024

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
172	December 20, 2023	Informal	State Violation/Reminder Notice
173	December 20, 2023	Informal	State Public Notification requested

Monitoring or reporting · Addressed by formal action

LSL ReportingViolation 133104 · LEAD AND COPPER RULE REVISIONS · Lead and Copper Rule Revisions

Noncompliance period start October 17, 2024 · first reported June 25, 2025

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
186	April 17, 2025	Informal	State Violation/Reminder Notice
187	April 17, 2025	Informal	State Public Notification requested
9999900000000000001	May 11, 2026	Formal	Federal Final Administrative Order issued

Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 133119 · Public Notice · Public Notice Rule and Revised PN Rule
Noncompliance period start October 4, 2024 · period end April 20, 2026 · first reported June 16, 2026 · EPA return-to-compliance field April 20, 2026

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
204 April 20, 2026 Resolving State Compliance achieved
Other or unclassified · Resolved
Consumer Confidence Report Complete Failure to ReportViolation 133102 · Consumer Confidence Rule · Consumer Confidence Rule
Noncompliance period start July 1, 2024 · period end September 12, 2024 · first reported March 31, 2025 · EPA return-to-compliance field September 12, 2024

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
178 September 12, 2024 Informal State Violation/Reminder Notice
179 September 12, 2024 Resolving State Compliance achieved
Other or unclassified · Resolved
Consumer Confidence Report Complete Failure to ReportViolation 133094 · Consumer Confidence Rule · Consumer Confidence Rule
Noncompliance period start July 1, 2023 · period end September 26, 2023 · first reported November 17, 2023 · EPA return-to-compliance field September 26, 2023

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
168 August 3, 2023 Informal State Violation/Reminder Notice
169 September 26, 2023 Resolving State Compliance achieved
Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 133120 · Public Notice · Public Notice Rule and Revised PN Rule
Noncompliance period start May 21, 2023 · period end April 20, 2026 · first reported June 16, 2026 · EPA return-to-compliance field April 20, 2026

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
205 April 20, 2026 Resolving State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
204	April 20, 2026	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
178	September 12, 2024	Informal	State Violation/Reminder Notice
179	September 12, 2024	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
168	August 3, 2023	Informal	State Violation/Reminder Notice
169	September 26, 2023	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
205	April 20, 2026	Resolving	State Compliance achieved

EPA health-based flag · Resolved

Failure To Address DeficiencyViolation 133100 · Groundwater Rule · Ground Water Rule

Noncompliance period start February 2, 2023 · period end January 9, 2025 · first reported March 28, 2024 · EPA return-to-compliance field January 9, 2025

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
172	December 20, 2023	Informal	State Violation/Reminder Notice
173	December 20, 2023	Informal	State Public Notification requested
181	January 9, 2025	Resolving	State Compliance achieved
182	January 9, 2025	Resolving	State Compliance achieved

EPA health-based flag · Resolved

Failure To Address DeficiencyViolation 133099 · Groundwater Rule · Ground Water Rule

Noncompliance period start February 2, 2023 · period end January 9, 2025 · first reported March 28, 2024 · EPA return-to-compliance field January 9, 2025

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
172	December 20, 2023	Informal	State Violation/Reminder Notice
173	December 20, 2023	Informal	State Public Notification requested
180	January 9, 2025	Resolving	State Compliance achieved
183	January 9, 2025	Resolving	State Compliance achieved

EPA health-based flag · Resolved

Failure To Address DeficiencyViolation 133098 · Groundwater Rule · Ground Water Rule

Noncompliance period start February 2, 2023 · period end August 21, 2024 · first reported March 28, 2024 · EPA return-to-compliance field August 21, 2024

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
172	December 20, 2023	Informal	State Violation/Reminder Notice
173	December 20, 2023	Informal	State Public Notification requested
208	August 21, 2024	Resolving	State Compliance achieved

Other or unclassified · Unaddressed by formal action

Failure to Consult with StateViolation 133101 · Groundwater Rule · Ground Water Rule

Noncompliance period start November 7, 2022 · first reported March 28, 2024

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
174	December 20, 2023	Informal	State Violation/Reminder Notice
175	December 20, 2023	Informal	State Public Notification requested

Other or unclassified · Resolved
Consumer Confidence Report Complete Failure to ReportViolation 133092 · Consumer Confidence Rule · Consumer Confidence Rule
Noncompliance period start July 1, 2022 · period end October 12, 2022 · first reported November 14, 2022 · EPA return-to-compliance field October 12, 2022

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
164 October 12, 2022 Informal State Violation/Reminder Notice
165 October 12, 2022 Resolving State Compliance achieved
Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 133093 · Public Notice · Public Notice Rule and Revised PN Rule
Noncompliance period start June 3, 2022 · period end July 27, 2023 · first reported February 13, 2023 · EPA return-to-compliance field July 27, 2023

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
167 July 27, 2023 Resolving State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
164	October 12, 2022	Informal	State Violation/Reminder Notice
165	October 12, 2022	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
167	July 27, 2023	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 133095 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start April 1, 2022 · period end June 30, 2022 · first reported November 17, 2023 · EPA return-to-compliance field June 30, 2022

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
170	October 4, 2023	Informal	State Violation/Reminder Notice
171	October 4, 2023	Informal	State Public Notification requested
176	October 4, 2023	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, Routine (RTCR)Violation 133091 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start April 1, 2022 · period end April 30, 2022 · first reported August 10, 2022 · EPA return-to-compliance field April 30, 2022

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
161	May 20, 2022	Informal	State Violation/Reminder Notice
162	May 20, 2022	Informal	State Public Notification requested
163	May 30, 2022	Resolving	State Compliance achieved

Other or unclassified · Resolved
Consumer Confidence Report Inadequate ReportingViolation 133090 · Consumer Confidence Rule · Consumer Confidence Rule
Noncompliance period start October 1, 2021 · period end October 6, 2021 · first reported February 23, 2022 · EPA return-to-compliance field October 6, 2021

2 linked actions

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

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

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 133087 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start September 1, 2019 · period end August 31, 2020 · first reported September 8, 2021 · EPA return-to-compliance field August 31, 2020

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
155	June 2, 2021	Informal	State Violation/Reminder Notice
156	June 2, 2021	Informal	State Public Notification requested
157	August 15, 2021	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 133086 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start September 1, 2019 · period end August 31, 2020 · first reported September 8, 2021 · EPA return-to-compliance field August 31, 2020

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
155	June 2, 2021	Informal	State Violation/Reminder Notice
156	June 2, 2021	Informal	State Public Notification requested
157	August 15, 2021	Resolving	State Compliance achieved

Other or unclassified · Resolved
Consumer Confidence Report Inadequate ReportingViolation 133103 · Consumer Confidence Rule · Consumer Confidence Rule
Noncompliance period start October 1, 2017 · period end September 30, 2019 · first reported March 31, 2025 · EPA return-to-compliance field September 30, 2019

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
185 September 30, 2019 Resolving State Compliance achieved
184 January 12, 2025 Informal State Violation/Reminder Notice
Other or unclassified · Resolved
Sample Siting Plan Errors (RTCR)Violation 133121 · Revised Total Coliform Rule · Revised Total Coliform Rule
Noncompliance period start June 2, 2016 · period end August 5, 2016 · first reported September 17, 2026 · EPA return-to-compliance field August 5, 2016

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
207 August 5, 2016 Resolving State Compliance achieved
206 February 7, 2017 Informal State Violation/Reminder Notice
Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 133089 · Public Notice · Public Notice Rule and Revised PN Rule
Noncompliance period start March 12, 2015 · period end October 5, 2021 · first reported November 29, 2021 · EPA return-to-compliance field October 5, 2021

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
158 October 5, 2021 Resolving State Compliance achieved
Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 133088 · Public Notice · Public Notice Rule and Revised PN Rule
Noncompliance period start January 24, 2014 · period end October 5, 2021 · first reported November 29, 2021 · EPA return-to-compliance field October 5, 2021

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
158 October 5, 2021 Resolving State Compliance achieved
Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 133118 · Public Notice · Public Notice Rule and Revised PN Rule
Noncompliance period start October 25, 2013 · period end April 20, 2026 · first reported June 16, 2026 · EPA return-to-compliance field April 20, 2026

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
203 April 20, 2026 Resolving State Compliance achieved
Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 133115 · Public Notice · Public Notice Rule and Revised PN Rule
Noncompliance period start November 24, 2012 · period end April 20, 2026 · first reported June 16, 2026 · EPA return-to-compliance field April 20, 2026

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
202 April 20, 2026 Resolving State Compliance achieved
Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 133117 · Public Notice · Public Notice Rule and Revised PN Rule
Noncompliance period start November 3, 2012 · period end April 20, 2026 · first reported June 16, 2026 · EPA return-to-compliance field April 20, 2026

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
201 April 20, 2026 Resolving State Compliance achieved
Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 133116 · Public Notice · Public Notice Rule and Revised PN Rule
Noncompliance period start September 8, 2011 · period end April 20, 2026 · first reported June 16, 2026 · EPA return-to-compliance field April 20, 2026

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
200 April 20, 2026 Resolving State Compliance achieved
Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 133112 · Public Notice · Public Notice Rule and Revised PN Rule
Noncompliance period start July 8, 2011 · period end April 20, 2026 · first reported June 16, 2026 · EPA return-to-compliance field April 20, 2026

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
199 April 20, 2026 Resolving State Compliance achieved
Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 133114 · Public Notice · Public Notice Rule and Revised PN Rule
Noncompliance period start March 20, 2011 · period end April 20, 2026 · first reported June 16, 2026 · EPA return-to-compliance field April 20, 2026

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
198 April 20, 2026 Resolving State Compliance achieved
Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 133113 · Public Notice · Public Notice Rule and Revised PN Rule
Noncompliance period start March 20, 2011 · period end April 20, 2026 · first reported June 16, 2026 · EPA return-to-compliance field April 20, 2026

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
197 April 20, 2026 Resolving State Compliance achieved
Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 133111 · Public Notice · Public Notice Rule and Revised PN Rule
Noncompliance period start March 20, 2011 · period end April 20, 2026 · first reported June 16, 2026 · EPA return-to-compliance field April 20, 2026

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
193 April 20, 2026 Resolving State Compliance achieved
Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 133110 · Public Notice · Public Notice Rule and Revised PN Rule
Noncompliance period start March 20, 2011 · period end April 20, 2026 · first reported June 16, 2026 · EPA return-to-compliance field April 20, 2026

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
194 April 20, 2026 Resolving State Compliance achieved
Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 133109 · Public Notice · Public Notice Rule and Revised PN Rule
Noncompliance period start March 20, 2011 · period end April 20, 2026 · first reported June 16, 2026 · EPA return-to-compliance field April 20, 2026

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
196 April 20, 2026 Resolving State Compliance achieved
Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 133108 · Public Notice · Public Notice Rule and Revised PN Rule
Noncompliance period start March 20, 2011 · period end April 20, 2026 · first reported June 16, 2026 · EPA return-to-compliance field April 20, 2026

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
195 April 20, 2026 Resolving State Compliance achieved
Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 133107 · Public Notice · Public Notice Rule and Revised PN Rule
Noncompliance period start March 20, 2011 · period end April 20, 2026 · first reported June 16, 2026 · EPA return-to-compliance field April 20, 2026

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
192 April 20, 2026 Resolving State Compliance achieved
Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 133106 · Public Notice · Public Notice Rule and Revised PN Rule
Noncompliance period start March 20, 2011 · period end April 20, 2026 · first reported June 16, 2026 · EPA return-to-compliance field April 20, 2026

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
191 April 20, 2026 Resolving State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
185	September 30, 2019	Resolving	State Compliance achieved
184	January 12, 2025	Informal	State Violation/Reminder Notice

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
207	August 5, 2016	Resolving	State Compliance achieved
206	February 7, 2017	Informal	State Violation/Reminder Notice

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
158	October 5, 2021	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
158	October 5, 2021	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
203	April 20, 2026	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
202	April 20, 2026	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
201	April 20, 2026	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
200	April 20, 2026	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
199	April 20, 2026	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
198	April 20, 2026	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
197	April 20, 2026	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
193	April 20, 2026	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
194	April 20, 2026	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
196	April 20, 2026	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
195	April 20, 2026	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
192	April 20, 2026	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
191	April 20, 2026	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