Lincoln Hall School
EPA ID: NY5903156 · 500 people served · 6 ZIP codes
From the earliest to the most recent cycle in the five-year EPA window, Lincoln Hall School has logged zero violations — no MCL exceedances, no health advisories, and no enforcement activity across the entire period for the 500 people in its service area, a record that stands up well against both state and national benchmarks.
Data: EPA SDWIS Last verified: 2026-04-02
Compliance Trajectory
Stable · Risk tier: High · 95% chance of violation in next 12 months
Violations went from 10 (2022) to 9 (2025). Violation counts have remained relatively steady.
Service Area Map
Coverage area for Lincoln Hall School Source: EPA SDWIS service area boundaries.
Service area boundary — Grade B
Service Area Demographics
The Lincoln Hall School serves a community with a median household income of $154,145 and an estimated 48,579 residents across its service area. 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?
Lincoln Hall School'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 Westchester County, New York rely on private wells rather than public water systems. Private well owners are responsible for their own water testing and treatment.
Infrastructure Risk
PFAS Detected in Service Area
PFAS ("forever chemicals") have been detected in water serving this system's area. 13 detections recorded. 4 exceed federal EPA limits (4 ppt for PFOA/PFOS). 2 exceed state limits.
Comparable Water Systems
Similar-sized systems in New York
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
LINCOLN HALL SCHOOL (EPA ID: NY5903156) is a community water system in New York that serves approximately 500 people from groundwater sources.
This system provides water to 6 ZIP codes across 6 communities.
Average Home Safety Score: B (73/100)
Based on water quality violations, lead levels, and radon risk across all ZIP codes served by this system.
Violation History
Lead & Copper
No Lead and Copper Rule sampling data available for this water system.
Radon Risk in Service Area
Dominant radon zone for ZIP codes served by this system: Zone 3 (Low Risk)
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: 3 ZIP codes confirmed via EPA Community Water System Service Area Boundaries v3 plus 3 additional ZIPs inferred from SDWIS registry data. The EPA-confirmed set is the most reliable; SDWIS-inferred entries may be narrower than the real deployment area.
- 10505 — Baldwin Place
- 10536 — Katonah
- 10540 — Lincolndale
- 10587 — Shenorock
- 10589 — Somers
- 10598 — Yorktown Heights
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Lincoln Hall School (NY5903156) on EPA.gov.
Frequently Asked Questions
Is Lincoln Hall School water safe to drink?
Based on EPA records, Lincoln Hall School has no recorded violations in the past 5 years — a positive indicator of water quality management.
How many people does Lincoln Hall School serve?
Lincoln Hall School serves approximately 500 people across 6 ZIP codes in New York.
Where does Lincoln Hall School get its water?
The primary water source is groundwater.
Lead Service Line Inventory
Service line breakdown reported under the federal Lead and Copper Rule Improvements (LCRI) inventory requirement:
This system reports zero confirmed lead service lines in its inventory. Unknown-material counts may still warrant verification.
Federal LCRI rule (effective October 2024) requires every public water system to inventory its service lines and complete lead-line replacement within 10 years.
Source: EPA SDWIS Federal Service Line Inventory (Phase 2) · Submitted 2026
ZipCheckup is not affiliated with the utility or state agency. Inventory figures render verbatim from the public LCRI submission cited above; ZipCheckup does not perform inspections or replacements.