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Clark County, Wisconsin — Property Hazard, Flood Zone, Soil, Water & EPA Guide

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What Are the Flood, Soil Foundation & EPA Risks in Clark County, WI?

In Clark County, Wisconsin, public U.S. EPA records track 347 regulated facilities (#41 of 94 in Wisconsin), including 4 (1.2%) High-Risk sites and $0 in federal penalties. Countywide due diligence also covers 93 Safe Drinking Water (SDWIS) facilities, 81 Clean Water NPDES permits, 3 FEMA Federal Disaster Declarations (3 flood/storm), USDA Soil Foundation Shrink-Swell (MODERATE signal), and EPA Zone 2 — Moderate Potential (2.0 – 4.0 pCi/L).

Total EPA Sites (#41/94)
347
High-Risk (1.2% vs 0.6% State)
4
Active Violators (5.2%)
18
Drinking & Clean Water
174
Federal Penalties
$0

Clark County, WI 6-in-1 Flood, Soil Foundation, Tap Water & Radon Signals

🔒 Parcel-Level Soil LEP %, Water Table Depth & Flood Zone Require Street Address Scan
🌊 Flood Zone & FEMA Disaster History
3 County FEMA Declarations (3 Flood/Storm)
🔒 Exact Parcel Flood Zone (AE / VE / X) & SFHA Insurance Requirement Locked
Check Property Flood Zone →
🪨 USDA Soil, Foundation & Water Table
Shrink-Swell Risk Signal: MODERATE • Pipe Corrosion: High
🔒 Exact USDA Soil Series, Linear Extensibility (LEP %) & Water Table Depth (ft) Locked
Unlock Parcel Soil Test →
🚰 Tap Water (SDWIS) & PFAS Check
93 SDWIS Systems • 81 NPDES Permits
🔒 21 Impaired Water (303d) & 23 Violation Dockets Locked
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☢️ EPA Radon & Karst Sinkhole
EPA Zone 2 — Moderate Potential (2.0 – 4.0 pCi/L)
Low / Non-Karst Bedrock & Alluvial Formation
🔒 0.25-Mi Vapor Intrusion Buffer Locked

📊 Clark County, WI Statistical Risk Graphs & Multi-Hazard Telemetry

SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 03, 2026)
1. County Regulatory & Water Program Mix
RCRA Hazardous Waste Generators 180 (51.9%)
Clean Water (NPDES) & Drinking Water (SDWIS) 174 (50.1%)
Active EPA Non-Compliance Dockets 18 (5.2%)
High-Risk Enforcement Facilities 4 (1.2%)
2. FEMA NRI & USGS Hazard Index (1–10) Relatively Low (68.4/100)
🌊 Flood Exposure 3/10 • Low Hazard
🔥 Wildfire Hazard 1/10 • Very Low Hazard
☀️ Extreme Heat 3/10 • Low Hazard
🌪️ Severe Wind / Storm 5/10 • Moderate Hazard
🫨 USGS Earthquake 2/10 • Low Seismic Hazard
3. County vs. State & National Benchmark
Clark County High-Risk % 1.2%
Wisconsin (WI) Statewide Avg 0.6%
U.S. National EPA Baseline 3.6%
Unlock Street-Level Dossier: Full report reveals unredacted facility names, distances in feet, exact USDA soil LEP %, water table depth, and parcel flood zone.
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Top EPA Regulated Facilities in Clark County, WI

100% of High-Risk & penalized facilities have facility names, street names, and dockets redacted (3 Low-Risk compliant records shown as Free Previews).

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Facility Name / Hazard Type Sector Location (Street Redacted) Risk Tier & Score Compliance Status Enforcement / Unlock
🔒 Locked High-Risk EPA Enforcement Record #1 🔒 Exact Street & Parcel Redacted • GRANTON, WI (ZIP 54436 Sector) HIGH (65/100) Significant Violation (7 qtrs NC) 🔒 7 Qtrs Non-Compliance • Unlock →
🔒 Locked High-Risk EPA Enforcement Record #2 🔒 Exact Street & Parcel Redacted • THORP, WI (ZIP 54771 Sector) HIGH (64/100) Significant Violation (6 qtrs NC) 🔒 6 Qtrs Non-Compliance • Unlock →
🔒 Locked Regulated EPA Enforcement Record #3 🔒 Exact Street & Parcel Redacted • GREENWOOD, WI (ZIP 54437 Sector) MODERATE (59/100) Violation Identified (10 qtrs NC) 🔒 10 Qtrs Non-Compliance • Unlock →
🔒 Locked Regulated EPA Enforcement Record #4 🔒 Exact Street & Parcel Redacted • OWEN, WI (ZIP 54460 Sector) MODERATE (50/100) Violation Identified (10 qtrs NC) 🔒 10 Qtrs Non-Compliance • Unlock →
🔒 Locked Regulated EPA Enforcement Record #5 🔒 Exact Street & Parcel Redacted • RESEBURG, TOWN OF, WI (ZIP 54771 Sector) MODERATE (46/100) Violation Identified (12 qtrs NC) 🔒 12 Qtrs Non-Compliance • Unlock →
🔒 Locked Regulated EPA Enforcement Record #6 🔒 Exact Street & Parcel Redacted • UNITY, TOWN OF, WI (ZIP 54488 Sector) MODERATE (44/100) Violation Identified (12 qtrs NC) 🔒 12 Qtrs Non-Compliance • Unlock →
🔒 Locked Regulated EPA Enforcement Record #7 🔒 Exact Street & Parcel Redacted • CHILI, WI (ZIP 54420 Sector) MODERATE (40/100) Violation Identified (8 qtrs NC) 🔒 8 Qtrs Non-Compliance • Unlock →
🔒 Locked Regulated EPA Enforcement Record #8 🔒 Exact Street & Parcel Redacted • OWEN, WI (ZIP 54460 Sector) MODERATE (40/100) Violation Identified (9 qtrs NC) 🔒 9 Qtrs Non-Compliance • Unlock →
PARRETT MANUFACTURING FREE PREVIEW (LOW RISK) 690 E 2ND AVE, DORCHESTER, WI 54425 LOW (17/100) No Violation Identified (0 qtrs NC) $0
GREENWOOD BODY SHOP FREE PREVIEW (LOW RISK) 109 W CENTRAL AVE, GREENWOOD, WI 54437 LOW (17/100) No Violation Identified (0 qtrs NC) $0
NORTH HENDREN COOP FREE PREVIEW (LOW RISK) HWY G, WILLARD, WI 54493 LOW (17/100) No Violation Identified (0 qtrs NC) $0
GALVIN TRACTOR CO INC FREE PREVIEW (LOW RISK) HWY 29 E, ABBOTSFORD, WI 54405 LOW (17/100) No Violation Identified (0 qtrs NC) $0
🔒 + 335 Additional Regulated & Enforcement Records in Clark County Redacted from Public Directory Run 1-Mile Property Scan to Unlock All Records →

Frequently Asked Questions — Clark County, Wisconsin Environmental Due Diligence

How many EPA-regulated environmental sites are in Clark County, Wisconsin?

Public U.S. EPA records track 347 regulated facilities in Clark County, Wisconsin (ranking #41 of 94 jurisdictions in WI). Of those, 4 (1.2%) are classified in the High-Risk tier due to significant enforcement or chemical release history, and 18 (5.2%) have active non-compliance quarters.

Which ZIP codes and cities in Clark County have the highest regulated facility density?

Within Clark County, the highest concentrations of EPA-tracked facilities are located in ZIP 54456 (Neillsville, 55 sites), ZIP 54771 (Thorp, 42 sites), ZIP 54405 (Abbotsford, 35 sites), spanning municipal corridors including Neillsville (49 sites), Abbotsford (37 sites), Colby (28 sites).

How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in Clark County?

Across Clark County, 180 facilities (51.9% of regulated sites) are registered Resource Conservation and Recovery Act (RCRA) hazardous waste generators or handlers, and 0 industrial sites report toxic chemical releases to the EPA Toxics Release Inventory (TRI).

What is the EPA Radon Zone classification for Clark County, WI?

Geologic indoor air screening places Clark County in EPA Zone 2 — Moderate Potential (2.0 – 4.0 pCi/L). Counties in EPA Radon Zone 2 have a predicted average indoor radon level between 2.0 and 4.0 pCi/L. Testing basement or ground-floor living areas is recommended during home inspection.

How many drinking water systems (SDWIS), impaired water bodies, and FEMA flood disasters are recorded in Clark County, WI?

Federal records track 93 Safe Drinking Water (SDWIS) facilities, 81 Clean Water Act NPDES permits, and 21 impaired water dischargers in Clark County, alongside 3 historical FEMA federal disaster declarations (3 flood/storm events).

Does Clark County, WI have expansive clay soil or foundation risk?

USDA regional soil engineering screening for Clark County indicates a MODERATE shrink-swell risk signal and steel pipe corrosivity rated High. Run a street address scan to unlock the exact parcel soil series, LEP %, and water table depth.

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