ZIP 66620 (Topeka, KS) — Flood Zone, Water Quality, Soil Foundation, Radon & EPA Hazards
ZIP code 66620 in Topeka, Kansas (Shawnee County) has 6 EPA-tracked facilities, including 0 High-Risk sites (0.0%), 0 active violators, and $0 in federal penalties. Beyond industrial pollution, properties in ZIP 66620 are screened across 1 historical Shawnee County FEMA disasters, USDA Soil Foundation Shrink-Swell (HIGH signal), Tap Water & Watershed Permits (1), and EPA Zone 1 — High Potential (> 4.0 pCi/L).
ZIP 66620 (Topeka, KS) 6-in-1 Flood, Soil Foundation, Tap Water & Radon Signals
🔒 Parcel-Level Soil LEP %, Water Table Depth & Flood Zone Require Street Address Scan📊 ZIP 66620 (Topeka, KS) Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 01, 2026)ZIP 66620 Sector Screening Map (High-Risk Pin Coordinates Locked)
Exact street pins for 0 High-Risk and 0 Active Violation sites are redacted on public directory maps.
Regulated EPA Facilities in ZIP 66620 (Topeka, KS)
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 |
|---|---|---|---|---|
| KDHE BLDG 248 FREE PREVIEW (LOW RISK) | FORBES FIELD BLDG 248, TOPEKA, KS 66620 | LOW (16/100) | No Violation Identified (0 qtrs NC) | $0 |
| DEPT OF DEFENSE, FORBES FIELD FREE PREVIEW (LOW RISK) | FORBES FIELD, INDUSTRIAL PARK, TOPEKA, KS 66620 | LOW (15/100) | No Violation Identified (0 qtrs NC) | $0 |
| KANSAS HEALTH & ENVIRONMENTAL LABORATORIES FREE PREVIEW (LOW RISK) | 6810 SE DWIGHT ST, TOPEKA, KS 66620 | LOW (15/100) | No Violation Identified (0 qtrs NC) | $0 |
| PALLETS PLUS FREE PREVIEW (LOW RISK) | BLDG. #182, TOPEKA, KS 66620 | LOW (13/100) | No Violation Identified (0 qtrs NC) | $0 |
| 🔒 Locked Regulated EPA Enforcement Record #1 | 🔒 Exact Street & Parcel Redacted • TOPEKA, KS (ZIP 66620 Sector) | LOW (12/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • TOPEKA, KS (ZIP 66620 Sector) | LOW (11/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
Frequently Asked Questions — ZIP 66620 (Topeka, KS) EPA Dataset & Radon
DATASET: U.S. EPA ECHO • FRS • RCRAInfo • TRI (November 01, 2026)How many EPA-tracked environmental sites are in ZIP code 66620 (Topeka, KS)?
ZIP code 66620 (Topeka, KS) contains 6 EPA-tracked facilities, of which 0 (0.0%) are classified in the High-Risk tier, 0 (0.0%) have active compliance violations, and 3 (50.0%) handle RCRA hazardous waste.
How does ZIP 66620 compare to Shawnee County and Kansas averages?
In ZIP 66620, 0.0% of regulated sites are rated High Risk, compared to 0.6% across Shawnee County and 0.7% statewide in Kansas.
What is the EPA Radon Zone and ASTM Phase I screening radius for ZIP 66620?
Geologic screening places ZIP 66620 in EPA Zone 1 — High Potential (> 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 66620 (Topeka, KS) in a FEMA flood zone and what is the flood disaster history?
Shawnee County has recorded 1 historical FEMA federal disaster declarations (0 flood, hurricane, or severe storm declarations). Run a street address scan in ZIP 66620 to unlock the exact parcel FEMA flood zone (AE / VE / X) and mandatory flood insurance status.
Does ZIP 66620 have expansive clay soil, foundation problems, or drinking water violations?
USDA regional soil screening for ZIP 66620 indicates a HIGH shrink-swell risk signal. Within ZIP 66620, federal registries track 0 SDWIS drinking water facilities, 1 Clean Water NPDES permits, and 0 impaired water body dischargers. Unlock a full property report for exact soil LEP %, water table depth, and utility violation dockets.