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Water system · PWSID NH2151010

SOMERSWORTH WATER WORKS

SOMERSWORTH, NH · ~12,000 people served

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

PWSID

NH2151010

State

New Hampshire

City

SOMERSWORTH

Population served

12,000

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

37

Violations on record

0

Unaddressed

35

Health-based

79

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Dec 2007. Official EPA record →

Other · EPA contaminant 7000 began Oct 2007 Resolved
Other · EPA contaminant 7000 began Jul 2007 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Apr 2007 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Apr 2007 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jan 2007 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Jan 2007 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Oct 2006 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Oct 2006 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jul 2006 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Jul 2006 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Apr 2006 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Apr 2006 Resolved

Recent enforcement actions

  • State action · SOX Dec 2007
  • State action · SOX Oct 2007
  • State action · SIA Oct 2007
  • State action · SOX Sep 2007
  • State action · SIA Jul 2007
  • State action · SIA Jul 2007
  • State action · SIE Jul 2007
  • State action · SIE Jul 2007

This profile is built from EPA public records for system NH2151010 — 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.