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Water system · PWSID NH0353020

MASCOMA VALLEY COOP

100
Excellent
PurityRadar safety score

PWSID

NH0353020

State

New Hampshire

City

CONCORD

Population served

73

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

29

Violations on record

0

Unaddressed

1

Health-based

24

Enforcement actions

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

Other · EPA contaminant 7000 began Jul 2008 Resolved
Other · EPA contaminant 7500 began Feb 2006 Resolved
Monitoring & reporting · Total coliform began Nov 2005 Resolved
Monitoring & reporting · Total coliform began Aug 2001 Resolved
Max contaminant level (MCL) · Total coliform health-based began May 1999 Resolved
Monitoring & reporting · Gross alpha began Oct 1998 Resolved
Monitoring & reporting · EPA contaminant 2964 began Oct 1998 Resolved
Monitoring & reporting · EPA contaminant 2378 began Oct 1998 Resolved
Monitoring & reporting · EPA contaminant 2955 began Oct 1998 Resolved
Monitoring & reporting · Uranium began Oct 1998 Resolved
Monitoring & reporting · EPA contaminant 2380 began Oct 1998 Resolved
Monitoring & reporting · Total coliform began Oct 1998 Resolved

Recent enforcement actions

  • State action · SOX Aug 2008
  • State action · SIA Jul 2008
  • State action · SOX Jun 2006
  • State action · SIF Mar 2006
  • State action · SOX Mar 2006
  • State action · SIA Feb 2006
  • State action · SIE Dec 2005
  • State action · SIA Dec 2005

This profile is built from EPA public records for system NH0353020 — 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.