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Water system · PWSID NH1162010

HIGHLAND COLONY

PLYMOUTH, NH · ~88 people served

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

PWSID

NH1162010

State

New Hampshire

City

PLYMOUTH

Population served

88

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

11

Violations on record

0

Unaddressed

8

Health-based

44

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Oct 2022. Official EPA record →

Monitoring & reporting · Lead & Copper Rule began Oct 2022 Resolved
Treatment technique · Lead & Copper Rule health-based began Jan 2022 Resolved
Other · EPA contaminant 7000 began Jul 2017 Resolved
Treatment technique · EPA contaminant 0700 health-based began Sep 2012 Resolved
Other · EPA contaminant 7000 began Jul 2007 Resolved
Max contaminant level (MCL) · Total coliform health-based began Jun 2005 Resolved
Max contaminant level (MCL) · Total coliform health-based began May 2000 Resolved
Max contaminant level (MCL) · Total coliform health-based began Apr 2000 Resolved
Max contaminant level (MCL) · Total coliform health-based began Jan 1999 Resolved
Max contaminant level (MCL) · Total coliform health-based began Jun 1992 Resolved
Max contaminant level (MCL) · Total coliform health-based began May 1992 Resolved

Recent enforcement actions

  • State action · SOX Oct 2022
  • State action · SIA Oct 2022
  • State action · SIF Feb 2022
  • State action · SOX Feb 2022
  • State action · SIE Jan 2022
  • State action · SIA Jan 2022
  • State action · SOX Jul 2017
  • State action · SIA Jul 2017

This profile is built from EPA public records for system NH1162010 — 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.