Gray Ledges
EPA ID: NH0952020 · 50 people served · 1 ZIP code
Gray Ledges earns a clean bill from EPA monitoring — no violations in five years across a service area of 50 people.
Data: EPA SDWIS Last verified: 2026-04-02
Service Area Map
Coverage area for Gray Ledges Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The Gray Ledges serves a community with a median household income of $113,317 and an estimated 3,478 residents across its service area. Approximately 50% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
💧 Where Does Your Water Come From?
Gray Ledges'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 Sullivan County, New Hampshire rely on private wells rather than public water systems. Private well owners are responsible for their own water testing and treatment.
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
Gray Ledges (EPA ID: NH0952020) is a community water system in New Hampshire that serves approximately 50 people from groundwater sources.
This system serves ZIP code 03753 in Grantham.
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
- 03753 — Grantham
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Gray Ledges (NH0952020) on EPA.gov.
Frequently Asked Questions
Is Gray Ledges water safe to drink?
Based on EPA records, Gray Ledges has no recorded violations in the past 5 years — a positive indicator of water quality management.
How many people does Gray Ledges serve?
Gray Ledges serves approximately 50 people across 1 ZIP code in New Hampshire.
Where does Gray Ledges get its water?
The primary water source is groundwater.