BOURNE WATER DISTRICT

POCASSET, MA · ~22,500 people served

Check your exact address → POCASSET overview

Good

PurityRadar safety score

PWSID

MA4036000

State

Massachusetts

City

POCASSET

Population served

22,500

Primary source

Groundwater

Score history

▼ 17 points — the score moved from 100 to 83 on Jun 18, 2026, as newly published EPA data was incorporated.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 83

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 Oct 2024). Levels in parts per trillion (ppt).

PFOS

Perfluorooctanesulfonic acid

4.8 ppt

limit 4 ppt

Above EPA limit · 1.2×

PFHxS

Perfluorohexanesulfonic acid

7.6 ppt

limit 10 ppt

Near EPA limit

PFPeA

3.1 ppt

limit —

No federal limit

Violations & enforcement

Violations on record

Unaddressed

Health-based

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Aug 2023. Official EPA record →

Max contaminant level (MCL) · Total coliform health-based began Nov 2012 Resolved

Other · EPA contaminant 7000 began Jul 2012 Resolved

Monitoring & reporting · Total coliform began Jul 2011 Resolved

Max contaminant level (MCL) · Total coliform health-based began Oct 2007 Resolved

Monitoring & reporting · Lead & Copper Rule began Jul 1995 Resolved

Recent enforcement actions

State action · SFL Aug 2023
State action · SFL Feb 2013
State action · SOX Feb 2013
State action · SFL Aug 2012
State action · SOX Aug 2012
State action · SFL Nov 2011
State action · SOX Nov 2011
State action · SFL Sep 2009

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

Nitrate

46 stations · latest Nov 2022

0.88 · max 4.4 ppm · 86

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 MA4036000 — 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.