NM3503321 · New Mexico
TIERRA AMARILLA MDWCA
Federal fiscal 2026Q3 · EPA violation and follow-up records
- Violation records shown
- 32
- EPA health-based flag
- 3
- Health-based records unresolved in this snapshot
- 1
- Monitoring and reporting records
- 8
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 29 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 631 days. The interval uses the reporting periods and dates on file.
EPA health-based flag · Addressed by formal action
LSL InventoryViolation 318 · LEAD AND COPPER RULE REVISIONS · Lead and Copper Rule RevisionsNoncompliance 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 228 April 17, 2025 Informal State Violation/Reminder Notice 229 April 17, 2025 Informal State Public Notification requested 9999900000000000001 May 12, 2026 Formal Federal Final Administrative Order issued Other or unclassified · Unaddressed by formal action
Consumer Confidence Report Inadequate ReportingViolation 325 · Consumer Confidence Rule · Consumer Confidence RuleNoncompliance 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 232 May 11, 2026 Informal State Violation/Reminder Notice Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 332 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts RuleNoncompliance period start May 1, 2025 · period end May 31, 2025 · first reported September 17, 2026 · EPA return-to-compliance field May 31, 2025
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 242 June 26, 2025 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 331 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts RuleNoncompliance 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 235 December 15, 2024 Resolving State Compliance achieved 233 May 11, 2026 Informal State Violation/Reminder Notice 234 May 11, 2026 Informal State Public Notification requested Monitoring or reporting · Addressed by formal action
LSL ReportingViolation 317 · LEAD AND COPPER RULE REVISIONS · Lead and Copper Rule RevisionsNoncompliance 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 226 April 17, 2025 Informal State Violation/Reminder Notice 227 April 17, 2025 Informal State Public Notification requested 9999900000000000001 May 12, 2026 Formal Federal Final Administrative Order issued Other or unclassified · Resolved
Consumer Confidence Report Inadequate ReportingViolation 314 · Consumer Confidence Rule · Consumer Confidence RuleNoncompliance period start October 1, 2024 · period end January 15, 2025 · first reported March 31, 2025 · EPA return-to-compliance field January 15, 2025
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 217 November 3, 2024 Informal State Violation/Reminder Notice 222 January 15, 2025 Resolving State Compliance achieved Other or unclassified · Resolved
Consumer Confidence Report Complete Failure to ReportViolation 310 · Consumer Confidence Rule · Consumer Confidence RuleNoncompliance period start July 1, 2024 · period end November 5, 2024 · first reported March 31, 2025 · EPA return-to-compliance field November 5, 2024
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 216 September 30, 2024 Informal State Violation/Reminder Notice 219 November 5, 2024 Resolving State Compliance achieved Other or unclassified · Resolved
Consumer Confidence Report Inadequate ReportingViolation 309 · Consumer Confidence Rule · Consumer Confidence RuleNoncompliance period start October 1, 2023 · period end January 15, 2025 · first reported March 28, 2024 · EPA return-to-compliance field January 15, 2025
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 215 November 9, 2023 Informal State Violation/Reminder Notice 223 January 15, 2025 Resolving State Compliance achieved Other or unclassified · Resolved
Consumer Confidence Report Complete Failure to ReportViolation 308 · Consumer Confidence Rule · Consumer Confidence RuleNoncompliance period start July 1, 2023 · period end August 8, 2023 · first reported November 17, 2023 · EPA return-to-compliance field August 8, 2023
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 213 August 3, 2023 Informal State Violation/Reminder Notice 214 August 8, 2023 Resolving State Compliance achieved EPA health-based flag · Resolved
Failure To Address DeficiencyViolation 307 · Groundwater Rule · Ground Water RuleNoncompliance period start April 27, 2023 · period end January 17, 2025 · first reported August 22, 2023 · EPA return-to-compliance field January 17, 2025
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 211 July 10, 2023 Informal State Violation/Reminder Notice 212 July 10, 2023 Informal State Public Notification requested 220 January 17, 2025 Resolving State Compliance achieved 221 January 17, 2025 Resolving State Compliance achieved EPA health-based flag · Resolved
Failure To Address DeficiencyViolation 306 · Groundwater Rule · Ground Water RuleNoncompliance period start April 27, 2023 · period end February 9, 2024 · first reported August 22, 2023 · EPA return-to-compliance field February 9, 2024
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 211 July 10, 2023 Informal State Violation/Reminder Notice 212 July 10, 2023 Informal State Public Notification requested 224 February 9, 2024 Resolving State Compliance achieved 225 February 9, 2024 Resolving State Compliance achieved Other or unclassified · Resolved
Consumer Confidence Report Inadequate ReportingViolation 315 · Consumer Confidence Rule · Consumer Confidence RuleNoncompliance period start October 1, 2021 · period end November 3, 2024 · first reported March 31, 2025 · EPA return-to-compliance field November 3, 2024
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 217 November 3, 2024 Informal State Violation/Reminder Notice 218 November 3, 2024 Resolving State Compliance achieved Other or unclassified · Resolved
Consumer Confidence Report Complete Failure to ReportViolation 304 · Consumer Confidence Rule · Consumer Confidence RuleNoncompliance period start July 1, 2021 · period end June 13, 2022 · first reported September 27, 2021 · EPA return-to-compliance field June 13, 2022
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 205 July 16, 2021 Informal State Violation/Reminder Notice 207 June 13, 2022 Resolving State Compliance achieved Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 305 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start April 1, 2021 · period end December 10, 2021 · first reported February 23, 2022 · EPA return-to-compliance field December 10, 2021
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 206 December 10, 2021 Resolving State Compliance achieved Other or unclassified · Resolved
Consumer Confidence Report Inadequate ReportingViolation 313 · Consumer Confidence Rule · Consumer Confidence RuleNoncompliance period start October 1, 2020 · period end November 3, 2024 · first reported March 31, 2025 · EPA return-to-compliance field November 3, 2024
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 217 November 3, 2024 Informal State Violation/Reminder Notice 218 November 3, 2024 Resolving State Compliance achieved Other or unclassified · Resolved
Consumer Confidence Report Complete Failure to ReportViolation 303 · Consumer Confidence Rule · Consumer Confidence RuleNoncompliance period start July 1, 2020 · period end June 14, 2022 · first reported October 5, 2020 · EPA return-to-compliance field June 14, 2022
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 202 July 17, 2020 Informal State Violation/Reminder Notice 208 June 14, 2022 Resolving State Compliance achieved Other or unclassified · Resolved
Consumer Confidence Report Inadequate ReportingViolation 312 · Consumer Confidence Rule · Consumer Confidence RuleNoncompliance period start October 1, 2019 · period end November 3, 2024 · first reported March 31, 2025 · EPA return-to-compliance field November 3, 2024
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 217 November 3, 2024 Informal State Violation/Reminder Notice 218 November 3, 2024 Resolving State Compliance achieved Other or unclassified · Resolved
Consumer Confidence Report Complete Failure to ReportViolation 301 · Consumer Confidence Rule · Consumer Confidence RuleNoncompliance period start July 1, 2019 · period end June 16, 2022 · first reported September 23, 2019 · EPA return-to-compliance field June 16, 2022
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 199 July 10, 2019 Informal State Violation/Reminder Notice 209 June 16, 2022 Resolving State Compliance achieved Other or unclassified · Resolved
Consumer Confidence Report Inadequate ReportingViolation 316 · Consumer Confidence Rule · Consumer Confidence RuleNoncompliance period start October 1, 2018 · period end November 3, 2024 · first reported March 31, 2025 · EPA return-to-compliance field November 3, 2024
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 217 November 3, 2024 Informal State Violation/Reminder Notice 218 November 3, 2024 Resolving State Compliance achieved Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 291 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start October 14, 2017 · period end January 15, 2021 · first reported February 15, 2019 · EPA return-to-compliance field January 15, 2021
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 203 January 15, 2021 Resolving State Compliance achieved Other or unclassified · Resolved
Consumer Confidence Report Inadequate ReportingViolation 311 · Consumer Confidence Rule · Consumer Confidence RuleNoncompliance period start October 1, 2017 · period end November 3, 2024 · first reported March 31, 2025 · EPA return-to-compliance field November 3, 2024
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 217 November 3, 2024 Informal State Violation/Reminder Notice 218 November 3, 2024 Resolving State Compliance achieved Other or unclassified · Resolved
Consumer Confidence Report Inadequate ReportingViolation 320 · Consumer Confidence Rule · Consumer Confidence RuleNoncompliance period start October 1, 2016 · period end March 13, 2019 · first reported June 16, 2026 · EPA return-to-compliance field March 13, 2019
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 231 March 13, 2019 Resolving State Compliance achieved 230 April 27, 2026 Informal State Violation/Reminder Notice Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 326 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts RuleNoncompliance 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 238 October 19, 2016 Resolving State Compliance achieved 239 May 11, 2026 Informal State Violation/Reminder Notice Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 327 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts RuleNoncompliance 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 238 October 19, 2016 Resolving State Compliance achieved 239 May 11, 2026 Informal State Violation/Reminder Notice Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 328 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts RuleNoncompliance 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 238 October 19, 2016 Resolving State Compliance achieved 239 May 11, 2026 Informal State Violation/Reminder Notice Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 329 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts RuleNoncompliance 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 238 October 19, 2016 Resolving State Compliance achieved 239 May 11, 2026 Informal State Violation/Reminder Notice Other or unclassified · Resolved
Consumer Confidence Report Inadequate ReportingViolation 321 · Consumer Confidence Rule · Consumer Confidence RuleNoncompliance period start October 1, 2015 · period end March 13, 2019 · first reported June 16, 2026 · EPA return-to-compliance field March 13, 2019
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 231 March 13, 2019 Resolving State Compliance achieved 230 April 27, 2026 Informal State Violation/Reminder Notice Other or unclassified · Resolved
Consumer Confidence Report Inadequate ReportingViolation 324 · Consumer Confidence Rule · Consumer Confidence RuleNoncompliance period start October 1, 2014 · period end March 13, 2019 · first reported June 16, 2026 · EPA return-to-compliance field March 13, 2019
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 231 March 13, 2019 Resolving State Compliance achieved 230 April 27, 2026 Informal State Violation/Reminder Notice Other or unclassified · Resolved
Consumer Confidence Report Inadequate ReportingViolation 319 · Consumer Confidence Rule · Consumer Confidence RuleNoncompliance period start October 1, 2013 · period end March 13, 2019 · first reported June 16, 2026 · EPA return-to-compliance field March 13, 2019
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 231 March 13, 2019 Resolving State Compliance achieved 230 April 27, 2026 Informal State Violation/Reminder Notice Other or unclassified · Resolved
Consumer Confidence Report Inadequate ReportingViolation 323 · Consumer Confidence Rule · Consumer Confidence RuleNoncompliance period start October 1, 2012 · period end March 13, 2019 · first reported June 16, 2026 · EPA return-to-compliance field March 13, 2019
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 231 March 13, 2019 Resolving State Compliance achieved 230 April 27, 2026 Informal State Violation/Reminder Notice Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 330 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts RuleNoncompliance period start February 1, 2012 · period end February 29, 2012 · first reported June 16, 2026 · EPA return-to-compliance field February 29, 2012
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 237 March 5, 2012 Resolving State Compliance achieved 239 May 11, 2026 Informal State Violation/Reminder Notice Other or unclassified · Resolved
Consumer Confidence Report Inadequate ReportingViolation 322 · Consumer Confidence Rule · Consumer Confidence RuleNoncompliance period start October 1, 2010 · period end March 13, 2019 · first reported June 16, 2026 · EPA return-to-compliance field March 13, 2019
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 231 March 13, 2019 Resolving State Compliance achieved 230 April 27, 2026 Informal State Violation/Reminder Notice
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.
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