Hillsborough Water Works
EPA ID: NH1141010 · 2,000 people served · 1 ZIP code
ZipCheckup's reading of EPA SDWIS for Hillsborough Water Works (NH1141010): no EPA violations recorded in the last five years. Water monitoring for Hillsborough Water Works: clean, five years, 2,000 residents.
Data: EPA SDWIS
Service Area Map
Coverage area for Hillsborough Water Works Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The Hillsborough Water Works serves a community with a median household income of $93,886 and an estimated 8,005 residents across its service area. Approximately 65% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
🌊 Where Does Your Water Come From?
Hillsborough Water Works'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 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
Hillsborough Water Works (EPA ID: NH1141010) is a community water system in New Hampshire that serves approximately 2,000 people from surface water sources.
This system serves ZIP code 03244 in Hillsborough.
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.
Radon Risk in Service Area
Dominant radon zone for ZIP codes served by this system: Zone 2 (Moderate Risk)
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
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.
- 03244 - Hillsborough
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Hillsborough Water Works (NH1141010) on EPA.gov.
Frequently Asked Questions
Is Hillsborough Water Works water safe to drink?
The accepted 2026Q2 ECHO snapshot contains zero violation records for Hillsborough 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 Hillsborough Water Works serve?
Hillsborough Water Works serves approximately 2,000 people across 1 ZIP code in New Hampshire.
Where does Hillsborough Water Works get its water?
The primary water source is surface water.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Hillsborough Water Works Water Quality Report, NH. https://zipcheckup.com/water-system/nh1141010/
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