West Groton Water Supply District
EPA ID: MA2115001 · 1,853 people served · 3 ZIP codes
For the full five-year period covered by EPA monitoring, West Groton Water Supply District has supplied tap water to 1,853 residents with no violations of any type on record.
Data: EPA SDWIS Last verified: 2026-04-02
Service Area Map
Coverage area for West Groton Water Supply District Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The West Groton Water Supply District serves a community with a median household income of $189,355 and an estimated 11,228 residents across its service area. Approximately 49% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
💧 Where Does Your Water Come From?
West Groton Water Supply District's water is pumped from underground aquifers. Groundwater is naturally filtered through rock and soil, but it can be vulnerable to PFAS contamination, nitrates from agriculture, and industrial chemicals that seep into the water table.
About 1% of homes in Middlesex County, Massachusetts rely on private wells rather than public water systems. Private well owners are responsible for their own water testing and treatment.
Superfund Proximity Note: This service area ranks in the 80th percentile nationally for proximity to Superfund (NPL) sites. Groundwater sources near contaminated sites may face elevated risk from industrial chemicals.
Infrastructure Risk
PFAS Detected in Service Area
PFAS ("forever chemicals") have been detected in water serving this system's area. 1 detection recorded.
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
West Groton Water Supply District (EPA ID: MA2115001) is a community water system in Massachusetts that serves approximately 1,853 people from groundwater sources.
This system provides water to 3 ZIP codes across 1 community.
Violation History
Lead & Copper
No Lead and Copper Rule sampling data available for this water system.
Need help with your water quality?
Typical cost: Water test: typically $20–$50 (DIY kit) · Professional inspection: $150–$400
Find the Right Water FilterFree tip: Let cold water run for 2 minutes before drinking — this helps flush lead from your pipes.
ZIP Codes Served
Coverage: 1 ZIP code confirmed via EPA Community Water System Service Area Boundaries v3 plus 2 additional ZIPs inferred from SDWIS registry data. The EPA-confirmed set is the most reliable; SDWIS-inferred entries may be narrower than the real deployment area.
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for West Groton Water Supply District (MA2115001) on EPA.gov.
Frequently Asked Questions
Is West Groton Water Supply District water safe to drink?
Based on EPA records, West Groton Water Supply District has no recorded violations in the past 5 years — a positive indicator of water quality management.
How many people does West Groton Water Supply District serve?
West Groton Water Supply District serves approximately 1,853 people across 3 ZIP codes in Massachusetts.
Where does West Groton Water Supply District get its water?
The primary water source is groundwater.
Lead Service Line Inventory
Utility-reported lead service line presence and tap-sample lead level under federal LCRI requirements:
Below federal action level (0.015 mg/L)
MassDEP reports utility-level presence flag and tap-sampling without per-line breakdown. Customers should inquire with the utility about service line material at a specific address.
Federal LCRI rule (effective October 2024) requires every public water system to inventory its service lines and complete lead-line replacement within 10 years.
Source: MassDEP LCRR Service Line Inventory · Submitted 2024
ZipCheckup is not affiliated with the utility or state agency. Inventory figures render verbatim from the public LCRI submission cited above; ZipCheckup does not perform inspections or replacements.