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Public Water System
CENTERVILLE OSTERVILLE MARSTONS MILLS WD
PWSID MA4020002 · Massachusetts · 50,000 people served
A
ExcellentCENTERVILLE OSTERVILLE MARSTONS MILLS WD is an EPA-regulated public water system in Massachusetts (PWSID MA4020002). It serves an estimated 50,000 residents — a small city of customers — across 1 community across 1 ZIP code.
CENTERVILLE OSTERVILLE MARSTONS MILLS WD has maintained full EPA Safe Drinking Water Act compliance over the most recent five-year reporting window. No health-based Maximum Contaminant Level (MCL) exceedances are on record. The grade of A reflects this clean compliance history.
Service Area
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Centered on the averaged ZIP-code centroid of 1 ZIP served.
Population
50,000
Cities
1
ZIPs
1
Violations
0
EPA Health-Based Violations
Health-based Maximum Contaminant Level (MCL) violations on file for CENTERVILLE OSTERVILLE MARSTONS MILLS WD over the past five years of EPA SDWIS reporting.
✅
No health-based violations in the last 5 years.
CENTERVILLE OSTERVILLE MARSTONS MILLS WD's water systems have met EPA health-based Maximum Contaminant Level (MCL) requirements throughout the EPA reporting window. This does not mean zero detection of regulated contaminants — it means all measured concentrations remained below their federal action levels.
Cities Served by CENTERVILLE OSTERVILLE MARSTONS MILLS WD
ZIP Codes Served
About this system
EPA records this system as PWSID MA4020002. Data reflects the most recent EPA SDWIS publication as of 2026-05-18. Public Water System Identifiers (PWSIDs) are assigned by the EPA's Safe Drinking Water Act program to track every regulated water utility in the United States. The first two letters typically indicate the state primacy agency. For real-time water quality information, contact CENTERVILLE OSTERVILLE MARSTONS MILLS WD directly or review their annual Consumer Confidence Report (CCR).
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