Marlborough Water Works
EPA ID: NH1481010 · 750 people served · 2 ZIP codes
ZipCheckup's reading of EPA SDWIS for Marlborough Water Works (NH1481010): no EPA violations recorded in the last five years. In every reporting cycle over the past five years, Marlborough Water Works has come through without a single EPA violation - a consistent performance across the full service population of approximately 750 residents that reflects both well-maintained infrastructure and reliable operational oversight.
Data: EPA SDWIS
Service Area Map
Coverage area for Marlborough Water Works Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The Marlborough Water Works serves a community with a median household income of $76,797 and an estimated 4,182 residents across its service area. Approximately 72% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
💧 Where Does Your Water Come From?
Marlborough Water Works'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.
Superfund Proximity Note: This service area ranks in the 60th percentile nationally for proximity to Superfund (NPL) sites. Groundwater sources near contaminated sites may face elevated risk from industrial chemicals.
Infrastructure Risk
Comparable Water Systems
Similar-sized systems in New Hampshire
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
Marlborough Water Works (EPA ID: NH1481010) is a community water system in New Hampshire that serves approximately 750 people from groundwater sources.
This system provides water to 2 ZIP codes across 2 communities.
Violation History
Lead & Copper
No reported lead measurement appears for this PWSID in the accepted LCR snapshot. Absence of a reported measurement is not a measured zero.
No copper action-level exceedance record appears for this PWSID in the accepted LCR snapshot. This does not establish a clean copper measurement.
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: 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 NH or modeled from parcel and building-footprint data.
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Marlborough Water Works (NH1481010) on EPA.gov.
Frequently Asked Questions
Is Marlborough Water Works water safe to drink?
The accepted 2026Q2 ECHO snapshot contains zero violation records for Marlborough Water Works 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 Marlborough Water Works serve?
Marlborough Water Works serves approximately 750 people across 2 ZIP codes in New Hampshire.
Where does Marlborough Water Works get its water?
The primary water source is groundwater.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Marlborough Water Works Water Quality Report, NH. https://zipcheckup.com/water-system/nh1481010/
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