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Public Water System
WEIR RIVER WATER SYSTEM
PWSID MA4131000 · Massachusetts · 45,339 people served
A
ExcellentWEIR RIVER WATER SYSTEM is an EPA-regulated public water system in Massachusetts (PWSID MA4131000). It serves an estimated 45,339 residents — a small city of customers — across 1 community across 1 ZIP code.
WEIR RIVER WATER SYSTEM 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
45,339
Cities
1
ZIPs
1
Violations
0
EPA Health-Based Violations
Health-based Maximum Contaminant Level (MCL) violations on file for WEIR RIVER WATER SYSTEM over the past five years of EPA SDWIS reporting.
✅
No health-based violations in the last 5 years.
WEIR RIVER WATER SYSTEM'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 WEIR RIVER WATER SYSTEM
ZIP Codes Served
About this system
EPA records this system as PWSID MA4131000. 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 WEIR RIVER WATER SYSTEM directly or review their annual Consumer Confidence Report (CCR).
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