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Water system · PWSID VT0005186

WILLIAMSTOWN WATER DEPT

WILLIAMSTOWN, VT · ~985 people served

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

PWSID

VT0005186

State

Vermont

City

WILLIAMSTOWN

Population served

985

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

7

Health-based

58

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Sep 2019. Official EPA record →

Other · EPA contaminant 7000 began Jul 2017 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Jul 2016 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Jul 2016 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Jul 2008 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Jul 2008 Resolved
Max contaminant level (MCL) · Total coliform health-based began Dec 2007 Resolved
Max contaminant level (MCL) · Total coliform health-based began Sep 2007 Resolved
Max contaminant level (MCL) · Total coliform health-based began May 2005 Resolved
Max contaminant level (MCL) · Total coliform health-based began Jun 2004 Resolved
Max contaminant level (MCL) · Total coliform health-based began Oct 2003 Resolved
Max contaminant level (MCL) · Total coliform health-based began Oct 1994 Resolved
Max contaminant level (MCL) · Total coliform health-based began Oct 1993 Resolved

Recent enforcement actions

  • State action · SOX Sep 2019
  • State action · SIE Nov 2017
  • State action · SIC Nov 2017
  • State action · SFJ Nov 2017
  • State action · SOX Jul 2017
  • State action · SOX May 2017
  • State action · SIF Dec 2016
  • State action · SIE Nov 2016

Area water-quality monitoring

Environmental monitoring (rivers, wells, intakes) recorded in this system’s service area in the EPA/USGS Water Quality Portal since 2018 — source/ambient water, not finished tap water. Context for the watershed, not a reading from your tap.

ContaminantMedian · max · samples

Manganese

3 stations · latest Jul 2025

42.4 · max 926 ug/L · 17

Uranium

3 stations · latest Jun 2025

0.94 · max 1.3 ug/L · 15

Arsenic

3 stations · latest Oct 2024

0.22 · max 0.68 ug/L · 6

Lead

2 stations · latest Sep 2024

0.745 · max 0.85 ug/L · 2

Source: Water Quality Portal (EPA/USGS/state agencies). Values are as-reported and aren’t health thresholds.

This profile is built from EPA public records for system VT0005186 — 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.