Silver Lake Estates
EPA ID: NH1172030 · 100 people served · 1 ZIP code
Over five tracked years, Silver Lake Estates has stayed completely violation-free for its 100 residents.
Data: EPA SDWIS Last verified: 2026-04-02
Compliance Trajectory
Stable · Risk tier: High · 84% chance of violation in next 12 months
Violations went from 2 (2022) to 1 (2024). Violation counts have remained relatively steady.
Service Area Map
Coverage area for Silver Lake Estates Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The Silver Lake Estates serves a community with a median household income of $156,140 and an estimated 8,530 residents across its service area. Approximately 62% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
💧 Where Does Your Water Come From?
Silver Lake Estates'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 Hillsborough County, New Hampshire 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 70th 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
Silver Lake Estates (EPA ID: NH1172030) is a community water system in New Hampshire that serves approximately 100 people from groundwater sources.
This system serves ZIP code 03049 in Hollis.
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
- 03049 — Hollis
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Silver Lake Estates (NH1172030) on EPA.gov.
Frequently Asked Questions
Is Silver Lake Estates water safe to drink?
Based on EPA records, Silver Lake Estates has no recorded violations in the past 5 years — a positive indicator of water quality management.
How many people does Silver Lake Estates serve?
Silver Lake Estates serves approximately 100 people across 1 ZIP code in New Hampshire.
Where does Silver Lake Estates get its water?
The primary water source is groundwater.