NH0583050 · New Hampshire

ROCK RIMMON COOPERATIVE

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

Violation records shown: 7
EPA health-based flag: 5
Health-based records unresolved in this snapshot: 1
Monitoring and reporting records: 2

Counties listed by EPA · Rockingham County, New Hampshire

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

Violations and what followed

Among 3 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 30 days. The interval uses the reporting periods and dates on file.

EPA health-based flag · Unaddressed by formal action
Treatment Technique (SWTR and GWR)Violation 2600054 · Groundwater Rule · Ground Water Rule
Noncompliance period start June 1, 2026 · period end July 1, 2026 · first reported August 27, 2026
No linked action row appears in the records shown.

EPA health-based flag · Archived

Treatment Technique (SWTR and GWR)Violation 2600053 · Groundwater Rule · Ground Water Rule

Noncompliance period start May 1, 2026 · period end June 1, 2026 · first reported August 27, 2026 · EPA return-to-compliance field June 1, 2026

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
2600160	June 10, 2026	Informal	State Violation/Reminder Notice
2600161	June 10, 2026	Informal	State Public Notification requested

Monitoring or reporting · Archived

Monitoring of Treatment (SWTR-Unfilt/GWR)Violation 2600052 · Groundwater Rule · Ground Water Rule

Noncompliance period start November 1, 2025 · period end November 30, 2025 · first reported February 19, 2026 · EPA return-to-compliance field November 30, 2025

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
2600157	December 16, 2025	Informal	State Violation/Reminder Notice
2600158	December 16, 2025	Informal	State Public Notification requested
2600159	December 19, 2025	Informal	State Public Notification received

Monitoring or reporting · Archived

Monitoring of Treatment (SWTR-Unfilt/GWR)Violation 2600051 · Groundwater Rule · Ground Water Rule

Noncompliance period start October 1, 2025 · period end October 31, 2025 · first reported February 19, 2026 · EPA return-to-compliance field October 31, 2025

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
2600154	November 19, 2025	Informal	State Violation/Reminder Notice
2600155	November 19, 2025	Informal	State Public Notification requested
2600156	November 24, 2025	Informal	State Public Notification received

EPA health-based flag · Resolved

Treatment Technique (SWTR and GWR)Violation 2200045 · Groundwater Rule · Ground Water Rule

Noncompliance period start November 1, 2021 · period end December 1, 2021 · first reported May 3, 2022 · EPA return-to-compliance field December 1, 2021

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
2200135	December 10, 2021	Informal	State Violation/Reminder Notice
2200136	December 10, 2021	Informal	State Public Notification requested
2200137	December 15, 2021	Informal	State Public Notification received
2200138	May 5, 2022	Resolving	State Compliance achieved

EPA health-based flag · Resolved

Treatment Technique (SWTR and GWR)Violation 2000044 · Groundwater Rule · Ground Water Rule

Noncompliance period start October 1, 2019 · period end November 1, 2019 · first reported May 3, 2022 · EPA return-to-compliance field November 1, 2019

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
2000131	November 7, 2019	Informal	State Violation/Reminder Notice
2000132	November 7, 2019	Informal	State Public Notification requested
2000133	November 13, 2019	Informal	State Public Notification received
2000134	December 31, 2019	Resolving	State Compliance achieved

EPA health-based flag · Resolved

Failure To Address DeficiencyViolation 1800043 · Groundwater Rule · Ground Water Rule

Noncompliance period start September 1, 2018 · period end October 1, 2018 · first reported May 3, 2022 · EPA return-to-compliance field October 1, 2018

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
1800128	September 27, 2018	Informal	State Violation/Reminder Notice
1900130	October 1, 2018	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