Upper Halfmoon Water
EPA ID: PA4140109 · 1,500 people served · 2 ZIP codes
ZipCheckup's reading of EPA records for Upper Halfmoon Water (PA4140109): no drinking-water violations recorded since 2021. Upper Halfmoon Water has no EPA violations on record; the utility serves 1,500 residents.
Data: EPA SDWIS
Service Area Map
Coverage area for Upper Halfmoon Water Source: EPA SDWIS service area boundaries.
Service area boundary
Demographics of ZIP Codes Served
The ZIP codes associated with Upper Halfmoon Water have a median household income of $98,798 and about 8,891 residents live in those ZIP codes (Census; not the number of people this system supplies). Approximately 46% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
💧 Where Does Your Water Come From?
Upper Halfmoon Water's water is classified in EPA records as a groundwater source. 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.
Infrastructure Risk
Comparable Water Systems
Similar-sized systems in Pennsylvania
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
Upper Halfmoon Water (EPA ID: PA4140109) is a community water system in Pennsylvania that serves approximately 1,500 people from groundwater sources.
This system provides water to 2 ZIP codes across 2 communities.
Violation History
Lead & Copper
Latest reported 90th-percentile lead result for this PWSID: 0.003 mg/L (2007-12-31).
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 1.
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 PA 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 Upper Halfmoon Water (PA4140109) on EPA.gov.
Frequently Asked Questions
Is Upper Halfmoon Water safe to drink?
The accepted 2026Q2 ECHO snapshot contains zero violation records for Upper Halfmoon Water 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 Upper Halfmoon Water serve?
Upper Halfmoon Water serves approximately 1,500 people across 2 ZIP codes in Pennsylvania.
Where does Upper Halfmoon Water get its water?
The primary water source is groundwater.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Upper Halfmoon Water Quality Report, PA. https://zipcheckup.com/water-system/pa4140109/
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title = {{Upper Halfmoon Water Quality Report, PA}},
year = {n.d.},
url = {https://zipcheckup.com/water-system/pa4140109/}
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