Ada County, Idaho — Property Hazard, Flood Zone, Soil, Water & EPA Guide
What Are the Flood, Soil Foundation & EPA Risks in Ada County, ID?
In Ada County, Idaho, public U.S. EPA records track 1,696 regulated facilities (#2 of 83 in Idaho), including 12 (0.7%) High-Risk sites and $750,240 in federal penalties. Countywide due diligence also covers 2 Safe Drinking Water (SDWIS) facilities, 1,624 Clean Water NPDES permits, 1 FEMA Federal Disaster Declarations (0 flood/storm), USDA Soil Foundation Shrink-Swell (HIGH signal), and EPA Zone 1 — High Potential (> 4.0 pCi/L).
Ada County, ID 6-in-1 Flood, Soil Foundation, Tap Water & Radon Signals
🔒 Parcel-Level Soil LEP %, Water Table Depth & Flood Zone Require Street Address Scan📊 Ada County, ID Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 05, 2026)Municipalities in Ada County
ZIP Codes in Ada County
Top EPA Regulated Facilities in Ada County, ID
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 Tier & Score | Compliance Status | Enforcement / Unlock |
|---|---|---|---|---|
| 🔒 Locked High-Risk EPA Enforcement Record #1 | 🔒 Exact Street & Parcel Redacted • BOISE, ID (ZIP 83709 Sector) | HIGH (68/100) | Significant Violation (7 qtrs NC) | 🔒 Federal Penalty on File • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • BOISE, ID (ZIP 83709 Sector) | MODERATE (42/100) | No Violation Identified (0 qtrs NC) | 🔒 $10,000+ Federal Fine • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • BOISE, ID (ZIP 83705 Sector) | MODERATE (38/100) | Violation Identified (11 qtrs NC) | 🔒 11 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • BOISE, ID (ZIP 83705 Sector) | MODERATE (37/100) | Violation Identified (10 qtrs NC) | 🔒 10 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • BOISE, ID (ZIP 83709 Sector) | MODERATE (36/100) | Violation Identified (5 qtrs NC) | 🔒 5 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • BOISE, ID (ZIP 83716 Sector) | MODERATE (35/100) | Violation Identified (4 qtrs NC) | 🔒 4 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • BOISE, ID (ZIP 83634 Sector) | MODERATE (32/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • BOISE, ID (ZIP 83709 Sector) | MODERATE (31/100) | No Violation Identified (0 qtrs NC) | 🔒 $100,000+ Federal Fine • Unlock → |
| 5TH AND IDAHO FREE PREVIEW (LOW RISK) | 505 W. IDAHO STREET, BOISE, ID 83702 | LOW (25/100) | No Violation Identified (0 qtrs NC) | $0 |
| ALBERTSONS - BROADWAY CENTER REDEVELOPMENT FREE PREVIEW (LOW RISK) | 1219 S. BROADWAY AVE., BOISE, ID 83706 | LOW (24/100) | No Violation Identified (0 qtrs NC) | $0 |
| CLASSIC KITCHENS FREE PREVIEW (LOW RISK) | 1170 TAYLOR AVE, SUITE 120, MERIDIAN, ID 83642 | LOW (18/100) | No Violation Identified (0 qtrs NC) | $0 |
| WBWRF CHEMICAL STORAGE & DISTRIBUTION FREE PREVIEW (LOW RISK) | 11818 JOPLIN RD, BOISE, ID 83714 | LOW (18/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — Ada County, Idaho Environmental Due Diligence
How many EPA-regulated environmental sites are in Ada County County, Idaho?
Public U.S. EPA records track 1,696 regulated facilities in Ada County County, Idaho (ranking #2 of 83 jurisdictions in ID). Of those, 12 (0.7%) are classified in the High-Risk tier due to significant enforcement or chemical release history, and 11 (0.6%) have active non-compliance quarters.
Which ZIP codes and cities in Ada County County have the highest regulated facility density?
Within Ada County County, the highest concentrations of EPA-tracked facilities are located in ZIP 83709 (Boise, 328 sites), ZIP 83616 (Eagle, 324 sites), ZIP 83646 (Meridian, 318 sites), spanning municipal corridors including Garden City (183 sites), Star (175 sites), Meridain (6 sites).
How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in Ada County County?
Across Ada County County, 4 facilities (0.2% 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 Ada County County, ID?
Geologic indoor air screening places Ada County County in EPA Zone 1 — High Potential (> 4.0 pCi/L). Counties in EPA Radon Zone 1 have a predicted average indoor radon screening level greater than 4.0 pCi/L (the EPA action threshold). Short-term or continuous indoor radon testing is strongly recommended prior to closing.
How many drinking water systems (SDWIS), impaired water bodies, and FEMA flood disasters are recorded in Ada County County, ID?
Federal records track 2 Safe Drinking Water (SDWIS) facilities, 1,624 Clean Water Act NPDES permits, and 532 impaired water dischargers in Ada County County, alongside 1 historical FEMA federal disaster declarations (0 flood/storm events).
Does Ada County, ID have expansive clay soil or foundation risk?
USDA regional soil engineering screening for Ada County indicates a HIGH shrink-swell risk signal and steel pipe corrosivity rated Moderate. Run a street address scan to unlock the exact parcel soil series, LEP %, and water table depth.