PENACOOK BOSCAWEN WATER PCT

NASHUA, NH · ~3,800 people served

Check your exact address → NASHUA overview

100

Excellent

PurityRadar safety score

PWSID

NH0251010

State

New Hampshire

City

NASHUA

Population served

3,800

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

Violations on record

Unaddressed

Health-based

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Feb 2018. Official EPA record →

Other · EPA contaminant 7500 began Dec 2017 Resolved

Monitoring & reporting · EPA contaminant 0999 began Jul 2017 Resolved

Other · EPA contaminant 7000 began Oct 2009 Resolved

Monitoring & reporting · Lead & Copper Rule began Jan 2009 Resolved

Max contaminant level (MCL) · Total coliform health-based began Oct 2001 Resolved

Max contaminant level (MCL) · Total coliform health-based began Oct 1995 Resolved

Max contaminant level (MCL) · Total coliform health-based began Jul 1995 Resolved

Max contaminant level (MCL) · Total coliform health-based began Jul 1994 Resolved

Treatment technique · EPA contaminant 0200 health-based began Jan 1992 Resolved

Recent enforcement actions

State action · SOX Feb 2018
State action · SIF Feb 2018
State action · SIA Jan 2018
State action · SOX Dec 2017
State action · SIA Oct 2017
State action · SIE Oct 2017
State action · SOX Nov 2009
State action · SIA Oct 2009

This profile is built from EPA public records for system NH0251010 — 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.