NH1031010 · New Hampshire

HAMPSTEAD AREA WATER

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

Violation records shown: 11
EPA health-based flag: 3
Health-based records unresolved in this snapshot: 0
Monitoring and reporting records: 8

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 11 resolved records 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.

Monitoring or reporting · Resolved

Monitoring, RegularViolation 2300034 · Arsenic · Arsenic Rule

Noncompliance period start January 1, 2023 · period end March 31, 2023 · first reported May 9, 2023 · EPA return-to-compliance field March 31, 2023

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
2300099	April 19, 2023	Informal	State Violation/Reminder Notice
2300100	April 19, 2023	Informal	State Public Notification requested
2300101	April 21, 2023	Resolving	State Compliance achieved
2300102	May 3, 2023	Informal	State Public Notification received

Monitoring or reporting · Resolved

Reporting, Assessment Forms (RTCR)Violation 2100027 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start November 1, 2020 · period end November 30, 2020 · first reported May 3, 2022 · EPA return-to-compliance field November 30, 2020

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
2100068	November 20, 2020	Informal	State Violation/Reminder Notice
2100069	November 20, 2020	Informal	State Public Notification requested
2100070	November 30, 2020	Resolving	State Compliance achieved
2100072	December 4, 2020	Informal	State Public Notification received

EPA health-based flag · Resolved

Treatment Technique, Level 2 Assessment (RTCR)Violation 2100026 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start November 1, 2020 · period end November 30, 2020 · first reported May 3, 2022 · EPA return-to-compliance field November 30, 2020

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
2100066	November 20, 2020	Informal	State Violation/Reminder Notice
2100067	November 20, 2020	Informal	State Public Notification requested
2100071	November 30, 2020	Resolving	State Compliance achieved
2100073	December 4, 2020	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 2100029 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start October 1, 2020 · period end January 1, 2021 · first reported May 3, 2022 · EPA return-to-compliance field January 1, 2021

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
2100076	January 14, 2021	Informal	State Violation/Reminder Notice
2100077	January 14, 2021	Informal	State Public Notification requested
2100091	February 5, 2021	Informal	State Public Notification received
2100098	March 2, 2021	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 2100028 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start October 1, 2020 · period end January 1, 2021 · first reported May 3, 2022 · EPA return-to-compliance field January 1, 2021

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
2100074	January 14, 2021	Informal	State Violation/Reminder Notice
2100075	January 14, 2021	Informal	State Public Notification requested
2100090	February 5, 2021	Informal	State Public Notification received
2100097	March 2, 2021	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 2000031 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start July 1, 2020 · period end October 1, 2020 · first reported May 3, 2022 · EPA return-to-compliance field October 1, 2020

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
2100080	January 14, 2021	Informal	State Violation/Reminder Notice
2100081	January 14, 2021	Informal	State Public Notification requested
2100089	February 5, 2021	Informal	State Public Notification received
2100094	March 2, 2021	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 2000030 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start July 1, 2020 · period end October 1, 2020 · first reported May 3, 2022 · EPA return-to-compliance field October 1, 2020

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
2100078	January 14, 2021	Informal	State Violation/Reminder Notice
2100079	January 14, 2021	Informal	State Public Notification requested
2100088	February 5, 2021	Informal	State Public Notification received
2100093	March 2, 2021	Resolving	State Compliance achieved

EPA health-based flag · Resolved

Maximum Contaminant Level Violation, AverageViolation 2000025 · Combined Radium (-226 and -228) · Radionuclides and Revised Rad Rule

Noncompliance period start July 1, 2020 · period end September 30, 2020 · first reported May 3, 2022 · EPA return-to-compliance field September 30, 2020

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
2000063	September 28, 2020	Informal	State Violation/Reminder Notice
2000064	September 28, 2020	Informal	State Public Notification requested
2100065	October 8, 2020	Informal	State Public Notification received
2000092	February 8, 2021	Resolving	State no longer subject to Rule

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 2000033 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start April 1, 2020 · period end July 1, 2020 · first reported May 3, 2022 · EPA return-to-compliance field July 1, 2020

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
2100084	January 14, 2021	Informal	State Violation/Reminder Notice
2100085	January 14, 2021	Informal	State Public Notification requested
2100087	February 5, 2021	Informal	State Public Notification received
2100096	March 2, 2021	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 2000032 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start April 1, 2020 · period end July 1, 2020 · first reported May 3, 2022 · EPA return-to-compliance field July 1, 2020

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
2100082	January 14, 2021	Informal	State Violation/Reminder Notice
2100083	January 14, 2021	Informal	State Public Notification requested
2100086	February 5, 2021	Informal	State Public Notification received
2100095	March 2, 2021	Resolving	State Compliance achieved

EPA health-based flag · Resolved

Maximum Contaminant Level Violation, AverageViolation 1800023 · Arsenic · Arsenic Rule

Noncompliance period start July 1, 2018 · period end September 30, 2018 · first reported May 3, 2022 · EPA return-to-compliance field September 30, 2018

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
1800057	September 10, 2018	Informal	State Violation/Reminder Notice
1800058	September 10, 2018	Informal	State Public Notification requested
1800059	September 25, 2018	Informal	State Public Notification received
1900060	April 1, 2019	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