ZIP 11549 (Hempstead, NY) — Flood Zone, Water Quality, Soil Foundation, Radon & EPA Hazards
ZIP code 11549 in Hempstead, New York (Nassau County) has 36 EPA-tracked facilities, including 8 High-Risk sites (22.2%), 15 active violators, and $3,900 in federal penalties. Beyond industrial pollution, properties in ZIP 11549 are screened across 4 historical Nassau County FEMA disasters, USDA Soil Foundation Shrink-Swell (LOW signal), Tap Water & Watershed Permits (18), and EPA Zone 2 — Moderate Potential (2.0 – 4.0 pCi/L).
ZIP 11549 (Hempstead, NY) 6-in-1 Flood, Soil Foundation, Tap Water & Radon Signals
🔒 Parcel-Level Soil LEP %, Water Table Depth & Flood Zone Require Street Address Scan📊 ZIP 11549 (Hempstead, NY) Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 01, 2026)ZIP 11549 Sector Screening Map (High-Risk Pin Coordinates Locked)
Exact street pins for 8 High-Risk and 15 Active Violation sites are redacted on public directory maps.
Regulated EPA Facilities in ZIP 11549 (Hempstead, NY)
100% of High-Risk & penalized facilities have facility names, street names, and dockets redacted (3 Low-Risk compliant records shown as Free Previews).
| Facility Name / Hazard Type | Sector Location (Street Redacted) | Risk Score (0–100) | Compliance Status | Enforcement / Unlock |
|---|---|---|---|---|
| 🔒 Locked High-Risk EPA Enforcement Record #1 | 🔒 Exact Street & Parcel Redacted • HEMPSTEAD, NY (ZIP 11549 Sector) | HIGH (64/100) | Significant Violation (3 qtrs NC) | 🔒 Federal Penalty on File • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • HEMPSTEAD, NY (ZIP 11549 Sector) | HIGH (64/100) | Significant Violation (6 qtrs NC) | 🔒 6 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • HEMPSTEAD, NY (ZIP 11549 Sector) | HIGH (64/100) | Significant Violation (2 qtrs NC) | 🔒 2 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • HEMPSTEAD, NY (ZIP 11549 Sector) | HIGH (64/100) | Significant Violation (2 qtrs NC) | 🔒 2 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • HEMPSTEAD, NY (ZIP 11549 Sector) | HIGH (64/100) | Significant Violation (2 qtrs NC) | 🔒 2 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • HEMPSTEAD, NY (ZIP 11549 Sector) | HIGH (64/100) | Significant Violation (2 qtrs NC) | 🔒 2 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • HEMPSTEAD, NY (ZIP 11549 Sector) | HIGH (64/100) | Significant Violation (2 qtrs NC) | 🔒 2 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • HEMPSTEAD, NY (ZIP 11549 Sector) | HIGH (64/100) | Significant Violation (2 qtrs NC) | 🔒 2 Qtrs Non-Compliance • Unlock → |
| GOODRICH ASSOCIATES MGMT FREE PREVIEW (LOW RISK) | 250 FULTON AVE EXECUTIVE BLDG, HEMPSTEAD, NY 11549 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
| HOFSTRA UNIVERSITY FREE PREVIEW (LOW RISK) | 129 HOFSTRA UNIVERSITY, HEMPSTEAD, NY 11549 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
| OCEAN OUTBOARD PROPERTY FREE PREVIEW (LOW RISK) | 2976 WHALENECK ROAD, HEMPSTEAD, NY 11549 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
| NYSDOT BIN 3360559 FREE PREVIEW (LOW RISK) | GLEN CURTISS BLVD OVER, HEMPSTEAD, NY 11549 | LOW (16/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — ZIP 11549 (Hempstead, NY) EPA Dataset & Radon
DATASET: U.S. EPA ECHO • FRS • RCRAInfo • TRI (November 01, 2026)How many EPA-tracked environmental sites are in ZIP code 11549 (Hempstead, NY)?
ZIP code 11549 (Hempstead, NY) contains 36 EPA-tracked facilities, of which 8 (22.2%) are classified in the High-Risk tier, 15 (41.7%) have active compliance violations, and 13 (36.1%) handle RCRA hazardous waste.
How does ZIP 11549 compare to Nassau County and New York averages?
In ZIP 11549, 22.2% of regulated sites are rated High Risk, compared to 1.2% across Nassau County and 1.1% statewide in New York.
What is the EPA Radon Zone and ASTM Phase I screening radius for ZIP 11549?
Geologic screening places ZIP 11549 in EPA Zone 2 — Moderate Potential (2.0 – 4.0 pCi/L). Property buyers should screen a 0.25-mile immediate buffer for vapor-intrusion sources and a 1.0-mile radius for CERCLA/RCRA sites.
Is ZIP 11549 (Hempstead, NY) in a FEMA flood zone and what is the flood disaster history?
Nassau County has recorded 4 historical FEMA federal disaster declarations (4 flood, hurricane, or severe storm declarations). Run a street address scan in ZIP 11549 to unlock the exact parcel FEMA flood zone (AE / VE / X) and mandatory flood insurance status.
Does ZIP 11549 have expansive clay soil, foundation problems, or drinking water violations?
USDA regional soil screening for ZIP 11549 indicates a LOW shrink-swell risk signal. Within ZIP 11549, federal registries track 0 SDWIS drinking water facilities, 18 Clean Water NPDES permits, and 7 impaired water body dischargers. Unlock a full property report for exact soil LEP %, water table depth, and utility violation dockets.