ZIP 99623 (Wasilla, AK) — Flood Zone, Water Quality, Soil Foundation, Radon & EPA Hazards
ZIP code 99623 in Wasilla, Alaska (Matanuska-Susitna County) has 52 EPA-tracked facilities, including 2 High-Risk sites (3.8%), 7 active violators, and $0 in federal penalties. Beyond industrial pollution, properties in ZIP 99623 are screened across 2 historical Matanuska-Susitna County FEMA disasters, USDA Soil Foundation Shrink-Swell (LOW signal), Tap Water & Watershed Permits (43), and EPA Zone 3 — Low Potential (< 2.0 pCi/L).
ZIP 99623 (Wasilla, AK) 6-in-1 Flood, Soil Foundation, Tap Water & Radon Signals
🔒 Parcel-Level Soil LEP %, Water Table Depth & Flood Zone Require Street Address Scan📊 ZIP 99623 (Wasilla, AK) Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 01, 2026)ZIP 99623 Sector Screening Map (High-Risk Pin Coordinates Locked)
Exact street pins for 2 High-Risk and 7 Active Violation sites are redacted on public directory maps.
Regulated EPA Facilities in ZIP 99623 (Wasilla, AK)
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 • WASILLA, AK (ZIP 99623 Sector) | HIGH (72/100) | Significant Violation (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • WASILLA, AK (ZIP 99623 Sector) | HIGH (64/100) | Significant Violation (8 qtrs NC) | 🔒 8 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • WASILLA, AK (ZIP 99623 Sector) | MODERATE (35/100) | Violation Identified (11 qtrs NC) | 🔒 11 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • WASILLA, AK (ZIP 99623 Sector) | MODERATE (35/100) | Violation Identified (11 qtrs NC) | 🔒 11 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • WASILLA, AK (ZIP 99623 Sector) | MODERATE (30/100) | Resolved / Historical Non-Compliance (6 qtrs NC) | 🔒 6 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • WASILLA, AK (ZIP 99623 Sector) | MODERATE (30/100) | Violation Identified (7 qtrs NC) | 🔒 7 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • WASILLA, AK (ZIP 99623 Sector) | MODERATE (30/100) | Violation Identified (3 qtrs NC) | 🔒 3 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • WASILLA, AK (ZIP 99623 Sector) | MODERATE (30/100) | Resolved / Historical Non-Compliance (2 qtrs NC) | 🔒 2 Qtrs Non-Compliance • Unlock → |
| 7 ELEVEN FREE PREVIEW (LOW RISK) | 2700 S KNIK GOOSE BAY RD, WASILLA, AK 99623 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
| AIDEA FREE PREVIEW (LOW RISK) | EDSULU RD, BIG LAKE, AK 99623 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
| STR GROUP, LLC FREE PREVIEW (LOW RISK) | 10927 W. BIG LAKE ROAD, WASILLA, AK 99623 | LOW (16/100) | No Violation Identified (0 qtrs NC) | $0 |
| NORTHERN PIONEER HELICOPTERS FREE PREVIEW (LOW RISK) | 4100 S TAXI WAY, BIG LAKE, AK 99623 | LOW (15/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — ZIP 99623 (Wasilla, AK) EPA Dataset & Radon
DATASET: U.S. EPA ECHO • FRS • RCRAInfo • TRI (November 01, 2026)How many EPA-tracked environmental sites are in ZIP code 99623 (Wasilla, AK)?
ZIP code 99623 (Wasilla, AK) contains 52 EPA-tracked facilities, of which 2 (3.8%) are classified in the High-Risk tier, 7 (13.5%) have active compliance violations, and 7 (13.5%) handle RCRA hazardous waste.
How does ZIP 99623 compare to Matanuska-Susitna County and Alaska averages?
In ZIP 99623, 3.8% of regulated sites are rated High Risk, compared to 0.7% across Matanuska-Susitna County and 2.0% statewide in Alaska.
What is the EPA Radon Zone and ASTM Phase I screening radius for ZIP 99623?
Geologic screening places ZIP 99623 in EPA Zone 3 — Low Potential (< 2.0 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 99623 (Wasilla, AK) in a FEMA flood zone and what is the flood disaster history?
Matanuska-Susitna County has recorded 2 historical FEMA federal disaster declarations (1 flood, hurricane, or severe storm declarations). Run a street address scan in ZIP 99623 to unlock the exact parcel FEMA flood zone (AE / VE / X) and mandatory flood insurance status.
Does ZIP 99623 have expansive clay soil, foundation problems, or drinking water violations?
USDA regional soil screening for ZIP 99623 indicates a LOW shrink-swell risk signal. Within ZIP 99623, federal registries track 16 SDWIS drinking water facilities, 27 Clean Water NPDES permits, and 1 impaired water body dischargers. Unlock a full property report for exact soil LEP %, water table depth, and utility violation dockets.