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Water system · PWSID NH1621010

PENNICHUCK WATER WORKS

NASHUA, NH · ~89,073 people served

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

PWSID

NH1621010

State

New Hampshire

City

NASHUA

Population served

89,073

Primary source

Surface water

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

2

Violations on record

0

Unaddressed

1

Health-based

5

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Nov 2008. Official EPA record →

Monitoring & reporting · Lead & Copper Rule began Oct 2008 Resolved
Treatment technique · EPA contaminant 0200 health-based began Aug 2002 Resolved

Recent enforcement actions

  • State action · SOX Nov 2008
  • State action · SIA Nov 2008
  • State action · SOX Oct 2002
  • State action · SIE Sep 2002
  • State action · SIA Sep 2002

This profile is built from EPA public records for system NH1621010 — 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.