Town of Westport
EPA ID: MA4334090 · 328 people served · 1 ZIP code
ZipCheckup's reading of EPA records for Town of Westport (MA4334090): no drinking-water violations recorded since 2021. Within the EPA records available for it, Town of Westport shows no violations; the system serves about 328 people.
Data: EPA SDWIS
Service Area Map
Coverage area for Town of Westport Source: EPA SDWIS service area boundaries.
Service area boundary
Demographics of ZIP Codes Served
The ZIP codes associated with Town of Westport have a median household income of $100,617 and about 16,725 residents live in those ZIP codes (Census; not the number of people this system supplies). Approximately 69% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
Environmental Justice Note: On average, 36% of census tracts in the counties mapped to this service area are designated disadvantaged by the federal Climate and Economic Justice Screening Tool (CEJST, 2022 version). Communities with higher disadvantaged populations often face disproportionate environmental and health burdens, including aging water infrastructure and limited resources for remediation.
🌊 Where Does Your Water Come From?
Town of Westport's water is drawn from rivers, lakes, or reservoirs. Surface water sources are more exposed to agricultural runoff, stormwater, and upstream discharges, but they typically receive more intensive treatment before reaching your tap.
Superfund Proximity Note: This service area ranks in the 70th percentile nationally for proximity to Superfund (NPL) sites.
Infrastructure Risk
Comparable Water Systems
Similar-sized systems in Massachusetts
Estimated Remediation Costs
Average estimated costs across ZIP codes served by this system
Based on national averages for common remediation projects. Actual costs vary by property. Only issues flagged by EPA, FEMA, or state data for each ZIP code are included.
System Overview
Town of Westport (EPA ID: MA4334090) is a community water system in Massachusetts that serves approximately 328 people from surface water sources.
This system serves ZIP code 02790 in Westport.
Violation History
Lead & Copper
EPA Lead and Copper Rule evidence attributed directly to this water system:
| Lead Level | Exceeds Action Level | Sample Date |
|---|---|---|
| Below the reporting limit | No | 2025-12-31 |
No copper action-level exceedance record appears for this PWSID in the accepted LCR snapshot. This does not establish a clean copper measurement.
Radon Risk in Service Area
1 of 1 ZIP records with known zones is in EPA Radon Zone 2.
The EPA recommends testing all homes regardless of radon zone. County radon zones cannot replace an in-home radon test.
ZIP Codes Served
Coverage: Service area ZIP codes sourced from EPA Community Water System Service Area Boundaries v3 (March 2026 release). These ZIPs reflect the actual deployment footprint recorded by MA or modeled from parcel and building-footprint data.
- 02790 - Westport
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for Town of Westport (MA4334090) on EPA.gov.
Frequently Asked Questions
Is Town of Westport water safe to drink?
The accepted 2026Q2 ECHO snapshot contains zero violation records for Town of Westport in the inclusive 2021-2026 record-year window. This is a compliance-record finding, not a guarantee about water at a specific tap.
How many people does Town of Westport serve?
Town of Westport serves approximately 328 people across 1 ZIP code in Massachusetts.
Where does Town of Westport get its water?
The primary water source is surface water.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Town of Westport Water Quality Report, MA. https://zipcheckup.com/water-system/ma4334090/
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author = {{ZipCheckup}},
title = {{Town of Westport Water Quality Report, MA}},
year = {n.d.},
url = {https://zipcheckup.com/water-system/ma4334090/}
}