NH0061010 · New Hampshire
ALTON WATER WORKS
Federal fiscal 2026Q3 · EPA violation and follow-up records
- Violation records shown
- 4
- EPA health-based flag
- 2
- Health-based records unresolved in this snapshot
- 0
- Monitoring and reporting records
- 2
Counties listed by EPA · Belknap 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 90 days. The interval uses the reporting periods and dates on file.
Monitoring or reporting · Resolved
Lead Consumer NoticeViolation 2600370 · Lead and Copper Rule · Lead and Copper RuleNoncompliance period start March 31, 2026 · period end April 8, 2026 · first reported June 23, 2026 · EPA return-to-compliance field April 8, 2026
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2600125 April 2, 2026 Informal State Violation/Reminder Notice 2600126 April 8, 2026 Resolving State Compliance achieved EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 2000369 · Arsenic · Arsenic RuleNoncompliance 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 2100120 October 27, 2020 Informal State Violation/Reminder Notice 2100121 October 27, 2020 Informal State Public Notification requested 2100122 November 30, 2020 Informal State Public Notification received 2000123 February 8, 2021 Resolving State Compliance achieved EPA health-based flag · Resolved
Maximum Contaminant Level Violation, AverageViolation 2000368 · Arsenic · Arsenic RuleNoncompliance period start April 1, 2020 · period end June 30, 2020 · first reported May 3, 2022 · EPA return-to-compliance field June 30, 2020
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2000117 June 12, 2020 Informal State Violation/Reminder Notice 2000118 June 12, 2020 Informal State Public Notification requested 2000119 June 16, 2020 Informal State Public Notification received 2000124 February 8, 2021 Resolving State Compliance achieved Monitoring or reporting · Archived
Monitoring, Routine Minor (TCR)Violation 1300040 · Coliform (TCR) · Total Coliform RuleNoncompliance period start November 1, 2012 · period end November 30, 2012 · first reported March 30, 2023 · EPA return-to-compliance field November 30, 2012
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