Boulder County, Colorado — Property Hazard, Flood Zone, Soil, Water & EPA Guide
What Are the Flood, Soil Foundation & EPA Risks in Boulder County, CO?
In Boulder County, Colorado, public U.S. EPA records track 3,228 regulated facilities (#8 of 108 in Colorado), including 44 (1.4%) High-Risk sites and $15,500,084 in federal penalties. Countywide due diligence also covers 113 Safe Drinking Water (SDWIS) facilities, 1,796 Clean Water NPDES permits, 3 FEMA Federal Disaster Declarations (0 flood/storm), USDA Soil Foundation Shrink-Swell (LOW signal), and EPA Zone 1 — High Potential (> 4.0 pCi/L).
Boulder County, CO 6-in-1 Flood, Soil Foundation, Tap Water & Radon Signals
🔒 Parcel-Level Soil LEP %, Water Table Depth & Flood Zone Require Street Address Scan📊 Boulder County, CO Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 03, 2026)Municipalities in Boulder County
ZIP Codes in Boulder County
Top EPA Regulated Facilities in Boulder County, CO
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 • LYONS, CO (ZIP 80540 Sector) | HIGH (98/100) | Significant Violation (12 qtrs NC) | 🔒 $100,000+ Federal Fine • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • BOULDER, CO (ZIP 80303 Sector) | HIGH (83/100) | Significant Violation (12 qtrs NC) | 🔒 $100,000+ Federal Fine • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • BOULDER, CO (ZIP 80303 Sector) | HIGH (71/100) | Significant Violation (12 qtrs NC) | 🔒 12 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • BOULDER, CO (ZIP 80309 Sector) | HIGH (67/100) | Significant Violation (12 qtrs NC) | 🔒 $10,000+ Federal Fine • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • LONGMONT, CO (ZIP 80501 Sector) | HIGH (65/100) | Significant Violation (7 qtrs NC) | 🔒 $10,000+ Federal Fine • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • LYONS, CO (ZIP 80033 Sector) | HIGH (65/100) | Significant Violation (9 qtrs NC) | 🔒 $10,000+ Federal Fine • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • BOULDER, CO (ZIP 80302 Sector) | HIGH (64/100) | Violation Identified (12 qtrs NC) | 🔒 $100,000+ Federal Fine • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • LYONS, CO (ZIP 80540 Sector) | HIGH (64/100) | Significant Violation (8 qtrs NC) | 🔒 8 Qtrs Non-Compliance • Unlock → |
| SAFEWAY STORE #2919 FREE PREVIEW (LOW RISK) | 4800 E BASELINE RD, BOULDER, CO 80303 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
| ERBTEC ENGINEERING FREE PREVIEW (LOW RISK) | 2760 29TH ST, BOULDER, CO 80301 | LOW (16/100) | No Violation Identified (0 qtrs NC) | $0 |
| FRESHWIND FELLOWSHIP CHURCH FREE PREVIEW (LOW RISK) | 4705 BASELINE RD, BOULDER, CO 80301 | LOW (16/100) | No Violation Identified (0 qtrs NC) | $0 |
| TARGET STORE T1769 FREE PREVIEW (LOW RISK) | 400 MARSHALL RD, SUPERIOR, CO 80027 | LOW (16/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — Boulder County, Colorado Environmental Due Diligence
How many EPA-regulated environmental sites are in Boulder County, Colorado?
Public U.S. EPA records track 3,228 regulated facilities in Boulder County, Colorado (ranking #8 of 108 jurisdictions in CO). Of those, 44 (1.4%) are classified in the High-Risk tier due to significant enforcement or chemical release history, and 124 (3.8%) have active non-compliance quarters.
Which ZIP codes and cities in Boulder County have the highest regulated facility density?
Within Boulder County, the highest concentrations of EPA-tracked facilities are located in ZIP 80301 (Boulder, 640 sites), ZIP 80501 (Longmont, 580 sites), ZIP 80027 (Superior, 312 sites), spanning municipal corridors including Boulder (1,258 sites), Lafayette (275 sites), Louisville (222 sites).
How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in Boulder County?
Across Boulder County, 961 facilities (29.8% 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 Boulder County, CO?
Geologic indoor air screening places Boulder 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 Boulder County, CO?
Federal records track 113 Safe Drinking Water (SDWIS) facilities, 1,796 Clean Water Act NPDES permits, and 140 impaired water dischargers in Boulder County, alongside 3 historical FEMA federal disaster declarations (0 flood/storm events).
Does Boulder County, CO have expansive clay soil or foundation risk?
USDA regional soil engineering screening for Boulder County indicates a LOW shrink-swell risk signal and steel pipe corrosivity rated Low. Run a street address scan to unlock the exact parcel soil series, LEP %, and water table depth.