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Water system · PWSID NH2111010

SEABROOK WATER DEPT

SEABROOK, NH · ~14,000 people served

Check your exact address → SEABROOK overview
68
Fair
PurityRadar safety score

PWSID

NH2111010

State

New Hampshire

City

SEABROOK

Population served

14,000

Primary source

Groundwater

Score history

▼ 32 points — the score moved from 100 to 68 on Jun 18, 2026, as newly published EPA data was incorporated.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 68

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

PFAS & contaminant readings

Latest detections from EPA’s UCMR5 monitoring (through Aug 2024). Levels in parts per trillion (ppt).

PFOA

Perfluorooctanoic acid

5.3 ppt

limit 4 ppt

Above EPA limit · 1.3×

PFOS

Perfluorooctanesulfonic acid

5.3 ppt

limit 4 ppt

Above EPA limit · 1.3×

PFHxA

4.4 ppt

limit —

No federal limit

Violations & enforcement

219

Violations on record

0

Unaddressed

29

Health-based

126

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jan 2025. Official EPA record →

Reporting · Lead & Copper Rule began Jan 2025 Resolved
Monitoring · Lead & Copper Rule began Dec 2024 Resolved
Monitoring & reporting · EPA contaminant 3014 began Aug 2021 Resolved
Max contaminant level (MCL) · Total coliform health-based began Sep 2011 Resolved
Max contaminant level (MCL) · Arsenic health-based began Jan 2011 Resolved
Max contaminant level (MCL) · Arsenic health-based began Oct 2010 Resolved
Max contaminant level (MCL) · Arsenic health-based began Jul 2010 Resolved
Max contaminant level (MCL) · Arsenic health-based began Apr 2010 Resolved
Max contaminant level (MCL) · Arsenic health-based began Jan 2010 Resolved
Max contaminant level (MCL) · Arsenic health-based began Oct 2009 Resolved
Max contaminant level (MCL) · Arsenic health-based began Jul 2009 Resolved
Max contaminant level (MCL) · Arsenic health-based began Apr 2009 Resolved

Recent enforcement actions

  • State action · SIF Jan 2025
  • State action · SIF Jan 2025
  • State action · SOX Jan 2025
  • State action · SOX Jan 2025
  • State action · SIE Jan 2025
  • State action · SIA Jan 2025
  • State action · SIE Jan 2025
  • State action · SIA Jan 2025

This profile is built from EPA public records for system NH2111010 — 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.