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13-SECTION MUNICIPAL PROPERTY, MARKET, FLOOD & HAZARD HUB • TWISP, WA

Twisp, Washington — Property Hazard, Flood Zone, Soil, Water & Market Guide

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What Are the Major Property, Flood, Soil & Environmental Risks in Twisp, WA?

Public U.S. EPA records track 22 regulated facilities in Twisp, Washington (Okanogan County), including 1 High-Risk sites (4.5%) and 5 active violators. In addition to industrial waste, Twisp properties are screened for Tap Water & Watershed Permits (14 systems), USDA Soil Foundation Shrink-Swell (LOW signal), 12 County FEMA Disaster Declarations, and EPA Zone 1 — High Potential (> 4.0 pCi/L).

Total EPA Sites
22
High-Risk (4.5% vs 5.2% State)
1
Active Violators (22.7%)
5
Drinking & Clean Water
14
Federal Penalties
$0

Twisp, WA 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
Okanogan County: 12 FEMA Declarations (4 Flood/Storm)
🔒 Exact Parcel Flood Zone (AE / VE / X) & SFHA Insurance Status Locked
Check Property Flood Zone →
🪨 USDA Soil, Foundation & Water Table
Shrink-Swell Risk Signal: LOW • Pipe Corrosion: Low
🔒 Exact USDA Soil Series, Linear Extensibility (LEP %) & Water Table Depth (ft) Locked
Unlock Parcel Soil Test →
🚰 Tap Water (SDWIS) & PFAS Check
3 SDWIS Systems • 11 NPDES Permits
🔒 2 Impaired Water (303d) & 7 Violation Dockets Locked
Unlock Utility Violation Log →
☢️ EPA Radon & Karst Sinkhole
EPA Zone 1 — High Potential (> 4.0 pCi/L)
Low / Non-Karst Bedrock & Alluvial Formation
🔒 0.25-Mi Vapor Intrusion Buffer Locked

📊 Twisp, WA Statistical Risk Graphs & Multi-Hazard Telemetry

SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 03, 2026)
1. Municipal Regulatory & Water Program Mix
RCRA Hazardous Waste Generators 6 (27.3%)
Clean Water (NPDES) & Drinking Water (SDWIS) 14 (63.6%)
Active EPA Non-Compliance Dockets 5 (22.7%)
High-Risk Enforcement Facilities 1 (4.5%)
2. FEMA NRI & USGS Hazard Index (1–10) Relatively Moderate (89.2/100)
🌊 Flood Exposure 5/10 • Moderate Hazard
🔥 Wildfire Hazard 7/10 • High Hazard
☀️ Extreme Heat 3/10 • Low Hazard
🌪️ Severe Wind / Storm 3/10 • Low Hazard
🫨 USGS Earthquake 3/10 • Low Hazard
3. City vs. County & State Benchmark
Twisp High-Risk Rate 4.5%
Okanogan County Average 6.3%
Washington (WA) Statewide Avg 5.2%
Unlock Street-Level Dossier: Paid report reveals exact facility names, distances in feet, USDA soil LEP %, water table depth, and parcel flood zone.
🔒 Scan a Property Address in Twisp →

ZIP Codes in Twisp, WA

ZIP 98856 (22 sites • 1 High Risk)

Highest-Scored EPA Regulated Facilities in Twisp, WA

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

Unlock Full Twisp Dossier →
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 • TWISP, WA (ZIP 98856 Sector) HIGH (64/100) Significant Violation (6 qtrs NC) 🔒 6 Qtrs Non-Compliance • Unlock →
🔒 Locked High-Risk EPA Enforcement Record #2 🔒 Exact Street & Parcel Redacted • TWISP, WA (ZIP 98856 Sector) HIGH (64/100) Significant Violation (3 qtrs NC) 🔒 3 Qtrs Non-Compliance • Unlock →
🔒 Locked High-Risk EPA Enforcement Record #3 🔒 Exact Street & Parcel Redacted • TWISP, WA (ZIP 98856 Sector) HIGH (64/100) Significant Violation (3 qtrs NC) 🔒 3 Qtrs Non-Compliance • Unlock →
🔒 Locked Regulated EPA Enforcement Record #4 🔒 Exact Street & Parcel Redacted • TWISP, WA (ZIP 98856 Sector) MODERATE (40/100) Violation Identified (12 qtrs NC) 🔒 12 Qtrs Non-Compliance • Unlock →
🔒 Locked Regulated EPA Enforcement Record #5 🔒 Exact Street & Parcel Redacted • TWISP, WA (ZIP 98856 Sector) MODERATE (30/100) Resolved / Historical Non-Compliance (2 qtrs NC) 🔒 2 Qtrs Non-Compliance • Unlock →
🔒 Locked Regulated EPA Enforcement Record #6 🔒 Exact Street & Parcel Redacted • TWISP, WA (ZIP 98856 Sector) MODERATE (30/100) Resolved / Historical Non-Compliance (5 qtrs NC) 🔒 5 Qtrs Non-Compliance • Unlock →
🔒 Locked Regulated EPA Enforcement Record #7 🔒 Exact Street & Parcel Redacted • TWISP, WA (ZIP 98856 Sector) MODERATE (30/100) Resolved / Historical Non-Compliance (2 qtrs NC) 🔒 2 Qtrs Non-Compliance • Unlock →
SUGAR CHANNEL RECONNECTION PROJECT RIGHT FREE PREVIEW (LOW RISK) 20049 STATE ROUTE 20, TWISP, WA 98856 LOW (17/100) No Violation Identified (0 qtrs NC) $0
US DA FS TWISP RANGER STATION FREE PREVIEW (LOW RISK) 502 GLOVER, TWISP, WA 98856 LOW (16/100) No Violation Identified (0 qtrs NC) $0
WA DOT TWISP UST FREE PREVIEW (LOW RISK) SR 20, TWISP, WA 98856 LOW (15/100) No Violation Identified (0 qtrs NC) $0
USDA USFS R06 OKANOGAN NF ALDER CREEK FREE PREVIEW (LOW RISK) T33N R21E S24 QSSW ALDER CREEK, TWISP, WA 98856 LOW (15/100) No Violation Identified (0 qtrs NC) $0
🔒 Locked Regulated EPA Enforcement Record #8 🔒 Exact Street & Parcel Redacted • TWISP, WA (ZIP 98856 Sector) LOW (15/100) No Violation Identified (0 qtrs NC) 🔒 Active Permit Dossier • Unlock →
🔒 + 10 Additional Regulated & Enforcement Records in Twisp, WA Redacted from Public Directory Run 1-Mile Property Scan to Unlock All Records →

Frequently Asked Questions — Twisp, Washington Environmental Risk & Radon

How many EPA-regulated facilities are in Twisp, WA?

U.S. EPA records track 22 regulated facilities in Twisp, Washington, including 1 high-risk sites (4.5%), 5 active violators (22.7%), and 6 RCRA hazardous waste handlers (27.3%).

Which ZIP codes in Twisp, WA have the most EPA-tracked sites?

Within Twisp, regulated facilities are primarily concentrated across ZIP 98856 (22 sites).

How can I check a specific house or commercial property in Twisp, WA?

Enter the exact street address in Twisp into the FullPropertyReport radius scanner to screen all EPA ECHO, FRS, RCRA, TRI, USDA soil foundation shrink-swell, drinking water (SDWIS), FEMA flood zone, and county radon records within 0.5 to 3.0 miles.

Is tap water safe in Twisp, WA and how many EPA water permits exist?

In Twisp, WA, federal registries track 3 Safe Drinking Water (SDWIS) facilities, 11 Clean Water Act NPDES permits, and 2 impaired water body dischargers.

What is the soil foundation risk and FEMA flood disaster history in Twisp, WA?

USDA regional soil screening for Twisp indicates a LOW shrink-swell foundation signal, and Okanogan County has recorded 12 federal FEMA disaster declarations (4 flood/severe storm declarations). Run an address scan to unlock exact parcel soil LEP %, water table depth, and flood zone.

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