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Water system · PWSID NH0692010

JOHNSON CREEK

DURHAM, NH · ~63 people served

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

PWSID

NH0692010

State

New Hampshire

City

DURHAM

Population served

63

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

17

Violations on record

0

Unaddressed

10

Health-based

56

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Feb 2020. Official EPA record →

Max contaminant level (MCL) · Arsenic health-based began Apr 2019 Resolved
Other · EPA contaminant 7500 began May 2017 Resolved
Monitoring & reporting · EPA contaminant 0999 began Jan 2017 Resolved
Max contaminant level (MCL) · Arsenic health-based began Jan 2016 Resolved
Max contaminant level (MCL) · Arsenic health-based began Jul 2015 Resolved
Max contaminant level (MCL) · Arsenic health-based began Apr 2015 Resolved
Max contaminant level (MCL) · Arsenic health-based began Jan 2015 Resolved
Max contaminant level (MCL) · Arsenic health-based began Oct 2014 Resolved
Max contaminant level (MCL) · Arsenic health-based began Jul 2014 Resolved
Max contaminant level (MCL) · Arsenic health-based began Apr 2014 Resolved
Other · EPA contaminant 7500 began Feb 2014 Resolved
Max contaminant level (MCL) · Arsenic health-based began Oct 2013 Resolved

Recent enforcement actions

  • State action · SOX Feb 2020
  • State action · SIF Jun 2019
  • State action · SIA May 2019
  • State action · SIE May 2019
  • State action · SOX Jul 2017
  • State action · SIF Jun 2017
  • State action · SOX Jun 2017
  • State action · SIA Jun 2017

This profile is built from EPA public records for system NH0692010 — 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.