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Water system · PWSID NH0153020

HALCYON HILL

EPSOM, NH · ~58 people served

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

PWSID

NH0153020

State

New Hampshire

City

EPSOM

Population served

58

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

127

Violations on record

0

Unaddressed

5

Health-based

69

Enforcement actions

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

Monitoring & reporting · EPA contaminant 0999 began Oct 2017 Resolved
Reporting · Lead & Copper Rule began Jul 2016 Resolved
Treatment technique · Lead & Copper Rule health-based began Jul 2016 Resolved
Monitoring & reporting · Total coliform began Jun 2013 Resolved
Monitoring & reporting · EPA contaminant 2969 began Jan 2012 Resolved
Monitoring & reporting · EPA contaminant 2976 began Jan 2012 Resolved
Monitoring & reporting · EPA contaminant 2977 began Jan 2012 Resolved
Monitoring & reporting · EPA contaminant 2955 began Jan 2012 Resolved
Monitoring & reporting · EPA contaminant 2964 began Jan 2012 Resolved
Monitoring & reporting · EPA contaminant 2380 began Jan 2012 Resolved
Monitoring & reporting · EPA contaminant 2968 began Jan 2012 Resolved
Monitoring & reporting · EPA contaminant 2378 began Jan 2012 Resolved

Recent enforcement actions

  • State action · SOX Feb 2018
  • State action · SIA Jan 2018
  • State action · SOX Jul 2016
  • State action · SOX Jul 2016
  • State action · SIA Jul 2016
  • State action · SIA Jul 2016
  • State action · SIA Jul 2013
  • State action · SOX Jul 2013

This profile is built from EPA public records for system NH0153020 — 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.