NM3527231 · New Mexico

GRENVILLE WATER SYSTEM

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

Violation records shown: 27
EPA health-based flag: 2
Health-based records unresolved in this snapshot: 0
Monitoring and reporting records: 9

Counties listed by EPA · Union 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 26 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 217.5 days. The interval uses the reporting periods and dates on file.

Monitoring or reporting · Resolved
Monitoring, Routine (RTCR)Violation 66764 · Revised Total Coliform Rule · Revised Total Coliform Rule
Noncompliance period start May 1, 2026 · period end May 31, 2026 · first reported September 17, 2026 · EPA return-to-compliance field May 31, 2026

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
141 June 30, 2026 Resolving State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
141	June 30, 2026	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Follow-up Or Routine LCR Tap M/RViolation 66762 · Lead and Copper Rule · Lead and Copper Rule

Noncompliance period start October 1, 2025 · period end February 3, 2026 · first reported March 31, 2026 · EPA return-to-compliance field February 3, 2026

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
132	January 12, 2026	Informal	State Violation/Reminder Notice
133	January 12, 2026	Informal	State Public Notification requested
134	February 3, 2026	Resolving	State Compliance achieved
136	February 3, 2026	Resolving	State Compliance achieved

Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 66757 · Public Notice · Public Notice Rule and Revised PN Rule
Noncompliance period start November 6, 2022 · period end July 1, 2023 · first reported May 16, 2023 · EPA return-to-compliance field July 1, 2023

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
117 July 1, 2023 Resolving State Compliance achieved
Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 66756 · Public Notice · Public Notice Rule and Revised PN Rule
Noncompliance period start July 28, 2022 · period end September 27, 2022 · first reported May 16, 2023 · EPA return-to-compliance field September 27, 2022

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
116 September 27, 2022 Resolving State Compliance achieved
Other or unclassified · Resolved
Consumer Confidence Report Complete Failure to ReportViolation 66755 · Consumer Confidence Rule · Consumer Confidence Rule
Noncompliance period start July 1, 2022 · period end October 11, 2022 · first reported November 14, 2022 · EPA return-to-compliance field October 11, 2022

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
114 October 11, 2022 Informal State Violation/Reminder Notice
115 October 11, 2022 Resolving State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
117	July 1, 2023	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
116	September 27, 2022	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
114	October 11, 2022	Informal	State Violation/Reminder Notice
115	October 11, 2022	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, Routine (RTCR)Violation 66753 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start May 1, 2022 · period end May 31, 2022 · first reported August 10, 2022 · EPA return-to-compliance field May 31, 2022

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
109	June 13, 2022	Resolving	State Compliance achieved
107	June 22, 2022	Informal	State Violation/Reminder Notice
108	June 22, 2022	Informal	State Public Notification requested
110	June 27, 2022	Informal	State Public Notification received

Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 66754 · Public Notice · Public Notice Rule and Revised PN Rule
Noncompliance period start December 19, 2021 · period end August 15, 2022 · first reported November 14, 2022 · EPA return-to-compliance field August 15, 2022

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
112 August 15, 2022 Resolving State Compliance achieved
Other or unclassified · Resolved
Consumer Confidence Report Inadequate ReportingViolation 66761 · Consumer Confidence Rule · Consumer Confidence Rule
Noncompliance period start October 1, 2021 · period end October 2, 2023 · first reported March 31, 2025 · EPA return-to-compliance field October 2, 2023

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
130 October 2, 2023 Resolving State Compliance achieved
129 November 24, 2024 Informal State Violation/Reminder Notice

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
112	August 15, 2022	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
130	October 2, 2023	Resolving	State Compliance achieved
129	November 24, 2024	Informal	State Violation/Reminder Notice

Monitoring or reporting · Resolved

Follow-up Or Routine LCR Tap M/RViolation 66752 · Lead and Copper Rule · Lead and Copper Rule

Noncompliance period start October 1, 2021 · period end June 27, 2022 · first reported May 19, 2022 · EPA return-to-compliance field June 27, 2022

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
105	April 7, 2022	Informal	State Violation/Reminder Notice
106	April 7, 2022	Informal	State Public Notification requested
111	June 27, 2022	Resolving	State Compliance achieved
113	September 27, 2022	Informal	State Public Notification received

EPA health-based flag · Resolved

Treatment Technique, Level 1 Assessment (RTCR)Violation 66743 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start September 15, 2021 · period end February 3, 2022 · first reported September 27, 2021 · EPA return-to-compliance field February 3, 2022

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
91	September 16, 2021	Informal	State Violation/Reminder Notice
92	September 16, 2021	Informal	State Public Notification requested
93	September 23, 2021	Informal	State Public Notification received
103	February 3, 2022	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, Routine (RTCR)Violation 66746 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start September 1, 2021 · period end September 30, 2021 · first reported November 29, 2021 · EPA return-to-compliance field September 30, 2021

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
100	October 28, 2021	Resolving	State Compliance achieved
98	November 5, 2021	Informal	State Violation/Reminder Notice
99	November 5, 2021	Informal	State Public Notification requested
118	July 1, 2023	Informal	State Public Notification received

Other or unclassified · Resolved
Consumer Confidence Report Complete Failure to ReportViolation 66742 · Consumer Confidence Rule · Consumer Confidence Rule
Noncompliance period start July 1, 2021 · period end August 3, 2023 · first reported September 27, 2021 · EPA return-to-compliance field August 3, 2023

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
90 July 15, 2021 Informal State Violation/Reminder Notice
124 August 3, 2023 Resolving State Compliance achieved
Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 66751 · Public Notice · Public Notice Rule and Revised PN Rule
Noncompliance period start June 26, 2021 · period end January 10, 2022 · first reported February 23, 2022 · EPA return-to-compliance field January 10, 2022

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
102 January 10, 2022 Resolving State Compliance achieved
Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 66750 · Public Notice · Public Notice Rule and Revised PN Rule
Noncompliance period start June 26, 2021 · period end January 10, 2022 · first reported February 23, 2022 · EPA return-to-compliance field January 10, 2022

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
101 January 10, 2022 Resolving State Compliance achieved
Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 66749 · Public Notice · Public Notice Rule and Revised PN Rule
Noncompliance period start June 26, 2021 · period end January 10, 2022 · first reported February 23, 2022 · EPA return-to-compliance field January 10, 2022

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
101 January 10, 2022 Resolving State Compliance achieved
Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 66748 · Public Notice · Public Notice Rule and Revised PN Rule
Noncompliance period start June 26, 2021 · period end January 10, 2022 · first reported February 23, 2022 · EPA return-to-compliance field January 10, 2022

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
101 January 10, 2022 Resolving State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
90	July 15, 2021	Informal	State Violation/Reminder Notice
124	August 3, 2023	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
102	January 10, 2022	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
101	January 10, 2022	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
101	January 10, 2022	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
101	January 10, 2022	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, Routine (RTCR)Violation 66741 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start November 1, 2020 · period end November 30, 2020 · first reported February 22, 2021 · EPA return-to-compliance field November 30, 2020

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
89	December 10, 2020	Resolving	State Compliance achieved
87	December 18, 2020	Informal	State Violation/Reminder Notice
88	December 18, 2020	Informal	State Public Notification requested

Other or unclassified · Resolved
Consumer Confidence Report Inadequate ReportingViolation 66760 · Consumer Confidence Rule · Consumer Confidence Rule
Noncompliance period start October 1, 2020 · period end October 2, 2023 · first reported March 31, 2025 · EPA return-to-compliance field October 2, 2023

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
130 October 2, 2023 Resolving State Compliance achieved
129 November 24, 2024 Informal State Violation/Reminder Notice
Other or unclassified · Resolved
Consumer Confidence Report Complete Failure to ReportViolation 66740 · Consumer Confidence Rule · Consumer Confidence Rule
Noncompliance period start July 1, 2020 · period end August 3, 2023 · first reported October 5, 2020 · EPA return-to-compliance field August 3, 2023

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
84 July 16, 2020 Informal State Violation/Reminder Notice
123 August 3, 2023 Resolving State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
130	October 2, 2023	Resolving	State Compliance achieved
129	November 24, 2024	Informal	State Violation/Reminder Notice

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
84	July 16, 2020	Informal	State Violation/Reminder Notice
123	August 3, 2023	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, RegularViolation 66758 · Asbestos · Inorganic Chemicals

Noncompliance period start January 1, 2020 · period end December 31, 2022 · first reported March 28, 2024 · EPA return-to-compliance field December 31, 2022

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
126	February 7, 2024	Informal	State Violation/Reminder Notice
127	February 7, 2024	Informal	State Public Notification requested
131	July 1, 2024	Informal	State Public Notification received
135	April 14, 2025	Resolving	State Compliance achieved

Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 66747 · Public Notice · Public Notice Rule and Revised PN Rule
Noncompliance period start August 23, 2019 · period end August 22, 2019 · first reported February 23, 2022 · EPA return-to-compliance field August 22, 2019

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
125 August 22, 2019 Resolving State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
125	August 22, 2019	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, Source Water (GWR)Violation 66734 · E. COLI · Ground Water Rule

Noncompliance period start August 16, 2019 · period end August 14, 2021 · first reported September 23, 2019 · EPA return-to-compliance field August 14, 2021

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
70	August 16, 2019	Informal	State Violation/Reminder Notice
71	August 16, 2019	Informal	State Public Notification requested
72	September 16, 2019	Informal	State Public Notification received
96	August 14, 2021	Resolving	State Compliance achieved

EPA health-based flag · Resolved

Treatment Technique, Level 2 Assessment (RTCR)Violation 66730 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start August 20, 2018 · period end April 8, 2022 · first reported September 24, 2018 · EPA return-to-compliance field April 8, 2022

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
61	August 22, 2018	Informal	State Violation/Reminder Notice
62	August 22, 2018	Informal	State Public Notification requested
125	August 22, 2019	Resolving	State Compliance achieved
104	April 8, 2022	Resolving	State Compliance achieved

Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 66745 · Public Notice · Public Notice Rule and Revised PN Rule
Noncompliance period start September 27, 2015 · 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
97 October 27, 2021 Resolving State Compliance achieved
Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 66744 · Public Notice · Public Notice Rule and Revised PN Rule
Noncompliance period start September 27, 2015 · period end October 18, 2021 · first reported November 29, 2021 · EPA return-to-compliance field October 18, 2021

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
94 October 18, 2021 Resolving State Compliance achieved
95 October 18, 2021 Resolving State Compliance achieved
Other or unclassified · Resolved
Failure to Consult with StateViolation 66763 · Groundwater Rule · Ground Water Rule
Noncompliance period start January 1, 2013 · period end January 7, 2013 · first reported June 16, 2026 · EPA return-to-compliance field January 7, 2013

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
138 January 7, 2013 Resolving State Compliance achieved
137 April 6, 2026 Informal State Violation/Reminder Notice
Monitoring or reporting · Resolved
Follow-up Or Routine LCR Tap M/RViolation 66759 · Lead and Copper Rule · Lead and Copper Rule
Noncompliance period start October 1, 2010 · period end August 29, 2011 · first reported March 31, 2025 · EPA return-to-compliance field August 29, 2011

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
128 August 29, 2011 Resolving State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
97	October 27, 2021	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
94	October 18, 2021	Resolving	State Compliance achieved
95	October 18, 2021	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
138	January 7, 2013	Resolving	State Compliance achieved
137	April 6, 2026	Informal	State Violation/Reminder Notice

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
128	August 29, 2011	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