NM3502921 · New Mexico
LOS OJOS MDWCA
Federal fiscal 2026Q3 · EPA violation and follow-up records
- Violation records shown
- 14
- EPA health-based flag
- 6
- Health-based records unresolved in this snapshot
- 1
- Monitoring and reporting records
- 2
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 11 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 364 days. The interval uses the reporting periods and dates on file.
EPA health-based flag · Unaddressed by formal action
LSL InventoryViolation 74257 · LEAD AND COPPER RULE REVISIONS · Lead and Copper Rule RevisionsNoncompliance period start October 17, 2024 · first reported June 16, 2026
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 101689 May 8, 2026 Informal State Violation/Reminder Notice 101692 May 8, 2026 Informal State Public Notification requested Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 74255 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start August 20, 2025 · 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 101688 April 22, 2026 Resolving State Compliance achieved Monitoring or reporting · Unaddressed by formal action
LSL ReportingViolation 74256 · LEAD AND COPPER RULE REVISIONS · Lead and Copper Rule RevisionsNoncompliance period start October 17, 2024 · first reported June 16, 2026
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 101689 May 8, 2026 Informal State Violation/Reminder Notice 101690 May 8, 2026 Informal State Public Notification requested Other or unclassified · Resolved
Consumer Confidence Report Inadequate ReportingViolation 74252 · Consumer Confidence Rule · Consumer Confidence RuleNoncompliance period start October 1, 2024 · period end December 18, 2024 · first reported March 31, 2025 · EPA return-to-compliance field December 18, 2024
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 101675 October 10, 2024 Informal State Violation/Reminder Notice 101676 December 18, 2024 Resolving State Compliance achieved Monitoring or reporting · Resolved
Follow-up Or Routine LCR Tap M/RViolation 74251 · Lead and Copper Rule · Lead and Copper RuleNoncompliance period start October 1, 2023 · period end September 29, 2024 · first reported March 31, 2025 · EPA return-to-compliance field September 29, 2024
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 101673 August 19, 2024 Informal State Violation/Reminder Notice 101674 August 19, 2024 Informal State Public Notification requested 101683 September 29, 2024 Resolving State Compliance achieved EPA health-based flag · Resolved
Failure To Address DeficiencyViolation 74250 · Groundwater Rule · Ground Water RuleNoncompliance period start March 2, 2023 · period end December 26, 2024 · first reported August 22, 2023 · EPA return-to-compliance field December 26, 2024
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 101666 June 26, 2023 Informal State Violation/Reminder Notice 101667 June 26, 2023 Informal State Public Notification requested 101677 December 26, 2024 Resolving State Compliance achieved 101678 December 26, 2024 Resolving State Compliance achieved EPA health-based flag · Resolved
Failure To Address DeficiencyViolation 74249 · Groundwater Rule · Ground Water RuleNoncompliance period start March 2, 2023 · period end December 26, 2024 · first reported August 22, 2023 · EPA return-to-compliance field December 26, 2024
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 101666 June 26, 2023 Informal State Violation/Reminder Notice 101667 June 26, 2023 Informal State Public Notification requested 101679 December 26, 2024 Resolving State Compliance achieved 101680 December 26, 2024 Resolving State Compliance achieved EPA health-based flag · Resolved
Failure To Address DeficiencyViolation 74248 · Groundwater Rule · Ground Water RuleNoncompliance period start March 2, 2023 · period end December 26, 2024 · first reported August 22, 2023 · EPA return-to-compliance field December 26, 2024
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 101666 June 26, 2023 Informal State Violation/Reminder Notice 101667 June 26, 2023 Informal State Public Notification requested 101681 December 26, 2024 Resolving State Compliance achieved 101682 December 26, 2024 Resolving State Compliance achieved EPA health-based flag · Resolved
Failure To Address DeficiencyViolation 74247 · Groundwater Rule · Ground Water RuleNoncompliance period start March 2, 2023 · period end December 1, 2022 · first reported August 22, 2023 · EPA return-to-compliance field December 1, 2022
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 101670 December 1, 2022 Resolving State Compliance achieved 101666 June 26, 2023 Informal State Violation/Reminder Notice 101667 June 26, 2023 Informal State Public Notification requested EPA health-based flag · Resolved
Failure To Address DeficiencyViolation 74246 · Groundwater Rule · Ground Water RuleNoncompliance period start March 2, 2023 · period end January 17, 2024 · first reported August 22, 2023 · EPA return-to-compliance field January 17, 2024
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 101666 June 26, 2023 Informal State Violation/Reminder Notice 101667 June 26, 2023 Informal State Public Notification requested 101671 January 17, 2024 Resolving State Compliance achieved 101672 January 17, 2024 Resolving State Compliance achieved Other or unclassified · Resolved
Failure to Consult with StateViolation 74254 · Groundwater Rule · Ground Water RuleNoncompliance period start December 5, 2022 · period end December 26, 2024 · first reported March 31, 2026 · EPA return-to-compliance field December 26, 2024
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 101687 December 26, 2024 Resolving State Compliance achieved 101686 February 9, 2026 Informal State Violation/Reminder Notice Other or unclassified · Resolved
Failure to Notify Other PWSViolation 74253 · Groundwater Rule · Ground Water RuleNoncompliance period start April 1, 2022 · period end October 5, 2022 · first reported March 31, 2025 · EPA return-to-compliance field October 5, 2022
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 101684 October 5, 2022 Resolving State Compliance achieved 101685 January 12, 2025 Informal State Violation/Reminder Notice Other or unclassified · Resolved
Failure to Notify Other PWSViolation 74244 · Groundwater Rule · Ground Water RuleNoncompliance period start April 1, 2021 · period end September 7, 2021 · first reported September 27, 2021 · EPA return-to-compliance field September 7, 2021
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 101663 September 7, 2021 Informal State Violation/Reminder Notice 101664 September 7, 2021 Resolving State Compliance achieved Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 74245 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start January 24, 2014 · period end October 19, 2021 · first reported November 29, 2021 · EPA return-to-compliance field October 19, 2021
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 101665 October 19, 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