NM3501223 · New Mexico

DESERT SKY MOUNTAIN WATER COOPERATIVE

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

Violation records shown: 22
EPA health-based flag: 12
Health-based records unresolved in this snapshot: 0
Monitoring and reporting records: 9

Counties listed by EPA · Sandoval County, New Mexico

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

Violations and what followed

Among 11 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 879 days. The interval uses the reporting periods and dates on file.

EPA health-based flag · Archived
Maximum Contaminant Level Violation, AverageViolation 75 · Arsenic · Arsenic Rule
Noncompliance period start April 1, 2026 · period end June 30, 2026 · first reported September 17, 2026 · EPA return-to-compliance field June 30, 2026

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
81 November 26, 2024 Formal State Administrative/Compliance Order without penalty issued

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 74 · Arsenic · Arsenic Rule

Noncompliance period start January 1, 2026 · period end March 31, 2026 · first reported September 17, 2026 · EPA return-to-compliance field March 31, 2026

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
81	November 26, 2024	Formal	State Administrative/Compliance Order without penalty issued
118	June 17, 2026	Informal	State Violation/Reminder Notice
119	June 17, 2026	Informal	State Public Notification requested
123	June 24, 2026	Informal	State Public Notification received

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 71 · Arsenic · Arsenic Rule

Noncompliance period start October 1, 2025 · period end December 31, 2025 · first reported March 31, 2026 · EPA return-to-compliance field December 31, 2025

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
81	November 26, 2024	Formal	State Administrative/Compliance Order without penalty issued
104	February 24, 2026	Informal	State Violation/Reminder Notice
105	February 24, 2026	Informal	State Public Notification requested
106	March 17, 2026	Informal	State Public Notification received

Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 73 · Public Notice · Public Notice Rule and Revised PN Rule
Noncompliance period start September 25, 2025 · period end March 17, 2026 · first reported June 16, 2026 · EPA return-to-compliance field March 17, 2026

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
110 March 17, 2026 Resolving State Compliance achieved
107 May 26, 2026 Informal State Violation/Reminder Notice

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
110	March 17, 2026	Resolving	State Compliance achieved
107	May 26, 2026	Informal	State Violation/Reminder Notice

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 60 · Arsenic · Arsenic Rule

Noncompliance period start July 1, 2025 · period end September 30, 2025 · first reported December 3, 2025 · EPA return-to-compliance field September 30, 2025

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
81	November 26, 2024	Formal	State Administrative/Compliance Order without penalty issued
92	August 25, 2025	Informal	State Violation/Reminder Notice
93	August 25, 2025	Informal	State Public Notification requested
111	March 17, 2026	Informal	State Public Notification received

Monitoring or reporting · Resolved
Lead Consumer NoticeViolation 69 · Lead and Copper Rule · Lead and Copper Rule
Noncompliance period start April 1, 2025 · period end May 27, 2026 · first reported December 3, 2025 · EPA return-to-compliance field May 27, 2026

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
95 November 5, 2025 Informal State Violation/Reminder Notice
116 May 27, 2026 Resolving State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
95	November 5, 2025	Informal	State Violation/Reminder Notice
116	May 27, 2026	Resolving	State Compliance achieved

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 61 · Arsenic · Arsenic Rule

Noncompliance period start April 1, 2025 · period end June 30, 2025 · first reported September 23, 2025 · EPA return-to-compliance field June 30, 2025

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
81	November 26, 2024	Formal	State Administrative/Compliance Order without penalty issued
92	August 25, 2025	Informal	State Violation/Reminder Notice
93	August 25, 2025	Informal	State Public Notification requested
111	March 17, 2026	Informal	State Public Notification received

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 62 · Arsenic · Arsenic Rule

Noncompliance period start January 1, 2025 · period end March 31, 2025 · first reported September 23, 2025 · EPA return-to-compliance field March 31, 2025

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
81	November 26, 2024	Formal	State Administrative/Compliance Order without penalty issued
92	August 25, 2025	Informal	State Violation/Reminder Notice
93	August 25, 2025	Informal	State Public Notification requested
111	March 17, 2026	Informal	State Public Notification received

Monitoring or reporting · Resolved

LSL ReportingViolation 59 · LEAD AND COPPER RULE REVISIONS · Lead and Copper Rule Revisions

Noncompliance period start October 17, 2024 · period end July 21, 2025 · first reported June 25, 2025 · EPA return-to-compliance field July 21, 2025

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
88	March 31, 2025	Informal	State Violation/Reminder Notice
89	March 31, 2025	Informal	State Public Notification requested
91	July 21, 2025	Resolving	State Compliance achieved

EPA health-based flag · Resolved

LSL InventoryViolation 58 · LEAD AND COPPER RULE REVISIONS · Lead and Copper Rule Revisions

Noncompliance period start October 17, 2024 · period end July 21, 2025 · first reported June 25, 2025 · EPA return-to-compliance field July 21, 2025

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
86	March 31, 2025	Informal	State Violation/Reminder Notice
87	March 31, 2025	Informal	State Public Notification requested
90	July 21, 2025	Resolving	State Compliance achieved
94	August 27, 2025	Informal	State Public Notification received

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 57 · Arsenic · Arsenic Rule

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

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
109	November 1, 2024	Informal	State Public Notification received
81	November 26, 2024	Formal	State Administrative/Compliance Order without penalty issued
84	February 12, 2025	Informal	State Violation/Reminder Notice
85	February 12, 2025	Informal	State Public Notification requested

Monitoring or reporting · Resolved
Lead Consumer NoticeViolation 67 · Lead and Copper Rule · Lead and Copper Rule
Noncompliance period start September 29, 2024 · period end May 27, 2026 · first reported December 3, 2025 · EPA return-to-compliance field May 27, 2026

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
96 November 5, 2025 Informal State Violation/Reminder Notice
115 May 27, 2026 Resolving State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
96	November 5, 2025	Informal	State Violation/Reminder Notice
115	May 27, 2026	Resolving	State Compliance achieved

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 55 · Arsenic · Arsenic Rule

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

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
78	September 30, 2024	Informal	State Violation/Reminder Notice
79	September 30, 2024	Informal	State Public Notification requested
80	November 1, 2024	Informal	State Public Notification received
81	November 26, 2024	Formal	State Administrative/Compliance Order without penalty issued

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 54 · Arsenic · Arsenic 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
78	September 30, 2024	Informal	State Violation/Reminder Notice
79	September 30, 2024	Informal	State Public Notification requested
80	November 1, 2024	Informal	State Public Notification received
81	November 26, 2024	Formal	State Administrative/Compliance Order without penalty issued

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 53 · Arsenic · Arsenic Rule

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

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
78	September 30, 2024	Informal	State Violation/Reminder Notice
79	September 30, 2024	Informal	State Public Notification requested
80	November 1, 2024	Informal	State Public Notification received
81	November 26, 2024	Formal	State Administrative/Compliance Order without penalty issued

Monitoring or reporting · Resolved
Lead Consumer NoticeViolation 65 · Lead and Copper Rule · Lead and Copper Rule
Noncompliance period start December 30, 2023 · period end May 27, 2026 · first reported December 3, 2025 · EPA return-to-compliance field May 27, 2026

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
97 November 5, 2025 Informal State Violation/Reminder Notice
114 May 27, 2026 Resolving State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
97	November 5, 2025	Informal	State Violation/Reminder Notice
114	May 27, 2026	Resolving	State Compliance achieved

EPA health-based flag · Archived

Maximum Contaminant Level Violation, AverageViolation 56 · Arsenic · Arsenic Rule

Noncompliance period start October 1, 2023 · period end December 31, 2023 · first reported March 31, 2025 · EPA return-to-compliance field December 31, 2023

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
78	September 30, 2024	Informal	State Violation/Reminder Notice
79	September 30, 2024	Informal	State Public Notification requested
80	November 1, 2024	Informal	State Public Notification received
81	November 26, 2024	Formal	State Administrative/Compliance Order without penalty issued

Monitoring or reporting · Resolved
Lead Consumer NoticeViolation 68 · Lead and Copper Rule · Lead and Copper Rule
Noncompliance period start December 30, 2020 · period end May 27, 2026 · first reported December 3, 2025 · EPA return-to-compliance field May 27, 2026

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
98 November 5, 2025 Informal State Violation/Reminder Notice
113 May 27, 2026 Resolving State Compliance achieved
Monitoring or reporting · Resolved
Lead Consumer NoticeViolation 64 · Lead and Copper Rule · Lead and Copper Rule
Noncompliance period start December 30, 2017 · period end May 27, 2026 · first reported December 3, 2025 · EPA return-to-compliance field May 27, 2026

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
99 November 5, 2025 Informal State Violation/Reminder Notice
112 May 27, 2026 Resolving State Compliance achieved
Monitoring or reporting · Resolved
Lead Consumer NoticeViolation 70 · Lead and Copper Rule · Lead and Copper Rule
Noncompliance period start December 30, 2014 · period end February 18, 2026 · first reported December 3, 2025 · EPA return-to-compliance field February 18, 2026

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
100 November 5, 2025 Informal State Violation/Reminder Notice
103 February 18, 2026 Resolving State Compliance achieved
Monitoring or reporting · Resolved
Lead Consumer NoticeViolation 66 · Lead and Copper Rule · Lead and Copper Rule
Noncompliance period start December 30, 2011 · period end February 18, 2026 · first reported December 3, 2025 · EPA return-to-compliance field February 18, 2026

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
101 November 5, 2025 Informal State Violation/Reminder Notice
103 February 18, 2026 Resolving State Compliance achieved
Monitoring or reporting · Resolved
Lead Consumer NoticeViolation 63 · Lead and Copper Rule · Lead and Copper Rule
Noncompliance period start December 30, 2010 · period end February 18, 2026 · first reported December 3, 2025 · EPA return-to-compliance field February 18, 2026

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
102 November 5, 2025 Informal State Violation/Reminder Notice
103 February 18, 2026 Resolving State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
98	November 5, 2025	Informal	State Violation/Reminder Notice
113	May 27, 2026	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
99	November 5, 2025	Informal	State Violation/Reminder Notice
112	May 27, 2026	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
100	November 5, 2025	Informal	State Violation/Reminder Notice
103	February 18, 2026	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
101	November 5, 2025	Informal	State Violation/Reminder Notice
103	February 18, 2026	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
102	November 5, 2025	Informal	State Violation/Reminder Notice
103	February 18, 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