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Water system · PWSID NH0061010

ALTON WATER WORKS

ALTON, NH · ~1,800 people served

Check your exact address → ALTON overview
100
Excellent
PurityRadar safety score

PWSID

NH0061010

State

New Hampshire

City

ALTON

Population served

1,800

Primary source

Groundwater

Score history

No change since tracking began Jun 18, 2026.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 100

2 score updates logged since tracking began Jun 18, 2026. Each future EPA re-score adds a point.

PFAS & contaminant readings

No PFAS detections are on record for this system from EPA’s UCMR5 monitoring (2023–25). Absence of a detection isn’t a guarantee — not every system was sampled, and this dataset doesn’t cover other contaminants.

Violations & enforcement

109

Violations on record

0

Unaddressed

14

Health-based

92

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Feb 2021. Official EPA record →

Max contaminant level (MCL) · Arsenic health-based began Jul 2020 Resolved
Max contaminant level (MCL) · Arsenic health-based began Apr 2020 Resolved
Monitoring & reporting · EPA contaminant 2968 began Jul 2014 Resolved
Monitoring & reporting · EPA contaminant 2955 began Jul 2014 Resolved
Monitoring & reporting · Cyanide began Jul 2014 Resolved
Monitoring & reporting · Arsenic began Jul 2014 Resolved
Monitoring & reporting · Barium began Jul 2014 Resolved
Monitoring & reporting · Nitrate began Jul 2014 Resolved
Monitoring & reporting · Cadmium began Jul 2014 Resolved
Monitoring & reporting · EPA contaminant 2380 began Jul 2014 Resolved
Monitoring & reporting · EPA contaminant 2378 began Jul 2014 Resolved
Monitoring & reporting · Chromium (total) began Jul 2014 Resolved

Recent enforcement actions

  • State action · SOX Feb 2021
  • State action · SOX Feb 2021
  • State action · SIF Nov 2020
  • State action · SIA Oct 2020
  • State action · SIE Oct 2020
  • State action · SIF Jun 2020
  • State action · SIE Jun 2020
  • State action · SIA Jun 2020

This profile is built from EPA public records for system NH0061010 — SDWIS violations and UCMR5 PFAS sampling. The score is system-level and can’t account for your home’s plumbing (older pipes can add lead at the tap). For health decisions, check your exact address, read the utility’s Consumer Confidence Report, and confirm with your provider.