NH0613060 · New Hampshire

CENTENNIAL ESTATES

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

Violation records shown: 4
EPA health-based flag: 1
Health-based records unresolved in this snapshot: 0
Monitoring and reporting records: 3

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 1 resolved record with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 91 days. The interval uses the reporting periods and dates on file.

EPA health-based flag · Resolved

Maximum Contaminant Level Violation, Single SampleViolation 2300615 · Nitrate · Nitrate Rule

Noncompliance period start July 1, 2023 · period end September 30, 2023 · first reported August 21, 2025 · EPA return-to-compliance field September 30, 2023

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
2300105	August 28, 2023	Informal	State Violation/Reminder Notice
2300106	August 28, 2023	Informal	State Public Notification requested
2300107	August 29, 2023	Informal	State Public Notification received
2400108	February 22, 2024	Resolving	State Compliance achieved

Monitoring or reporting · Archived
Monitoring, Repeat Major (TCR)Violation 1200042 · Coliform (TCR) · Total Coliform Rule
Noncompliance period start July 1, 2012 · period end July 31, 2012 · first reported March 30, 2023 · EPA return-to-compliance field July 31, 2012
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, Routine Major (TCR)Violation 1200038 · Coliform (TCR) · Total Coliform Rule
Noncompliance period start April 1, 2012 · period end April 30, 2012 · first reported March 30, 2023 · EPA return-to-compliance field April 30, 2012
No linked action row appears in the records shown.
Monitoring or reporting · Archived
Monitoring, Routine Major (TCR)Violation 1200036 · Coliform (TCR) · Total Coliform Rule
Noncompliance period start October 1, 2011 · period end December 31, 2011 · first reported March 30, 2023 · EPA return-to-compliance field December 31, 2011
No linked action row appears in the records shown.

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