Locke Lake
EPA ID: NH0142010 · 2,308 people served · 2 ZIP codes
ZipCheckup's reading of EPA records for Locke Lake (NH0142010): no drinking-water violations recorded since 2021. EPA lists no violations for Locke Lake, serving 2,308 people.
Data: EPA SDWIS
Service Area Map
Coverage area for Locke Lake Source: EPA SDWIS service area boundaries.
Service area boundary
Demographics of ZIP Codes Served
The ZIP codes associated with Locke Lake have a median household income of $97,389 and about 4,972 residents live in those ZIP codes (Census; not the number of people this system supplies). Approximately 60% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
🌊 Where Does Your Water Come From?
Locke Lake'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.
Infrastructure Risk
Comparable Water Systems
Similar-sized systems in New Hampshire
System Overview
Locke Lake (EPA ID: NH0142010) is a community water system in New Hampshire that serves approximately 2,308 people from surface water 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.
Radon Risk in Service Area
2 of 2 ZIP records with known zones are in EPA Radon Zone 2.
The EPA recommends testing all homes regardless of radon zone. County radon zones cannot replace an in-home radon test.
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 available EPA compliance records for Locke Lake (NH0142010) on EPA.gov.
Frequently Asked Questions
Is Locke Lake water safe to drink?
The accepted 2026Q2 ECHO snapshot contains zero violation records for Locke Lake 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 Locke Lake serve?
Locke Lake serves approximately 2,308 people across 2 ZIP codes in New Hampshire.
Where does Locke Lake get its water?
The primary water source is surface water.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Locke Lake Water Quality Report, NH. https://zipcheckup.com/water-system/nh0142010/
@misc{zipcheckup-water-system-nh0142010,
author = {{ZipCheckup}},
title = {{Locke Lake Water Quality Report, NH}},
year = {n.d.},
url = {https://zipcheckup.com/water-system/nh0142010/}
}