Colusa County, California — Property Hazard, Flood Zone, Soil, Water & EPA Guide
What Are the Flood, Soil Foundation & EPA Risks in Colusa County, CA?
In Colusa County, California, public U.S. EPA records track 554 regulated facilities (#58 of 136 in California), including 3 (0.5%) High-Risk sites and $15,865 in federal penalties. Countywide due diligence also covers 33 Safe Drinking Water (SDWIS) facilities, 38 Clean Water NPDES permits, 2 FEMA Federal Disaster Declarations (2 flood/storm), USDA Soil Foundation Shrink-Swell (LOW signal), and EPA Zone 2 — Moderate Potential (2.0 – 4.0 pCi/L).
Colusa County, CA 6-in-1 Flood, Soil Foundation, Tap Water & Radon Signals
🔒 Parcel-Level Soil LEP %, Water Table Depth & Flood Zone Require Street Address Scan📊 Colusa County, CA Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 03, 2026)Municipalities in Colusa County
Top EPA Regulated Facilities in Colusa County, CA
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 • COLUSA, CA (ZIP 95932 Sector) | HIGH (64/100) | Violation Identified (10 qtrs NC) | 🔒 $10,000+ Federal Fine • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • ARBUCKLE, CA (ZIP 95912 Sector) | MODERATE (36/100) | Violation Identified (6 qtrs NC) | 🔒 6 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • STONYFORD, CA (ZIP 95979 Sector) | MODERATE (34/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • WILLIAMS, CA (ZIP 95987 Sector) | MODERATE (33/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • COLUSA, CA (ZIP 95932 Sector) | MODERATE (33/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • GRIMES, CA (ZIP 95950 Sector) | MODERATE (33/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • WILLIAMS, CA (ZIP 95987 Sector) | MODERATE (33/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • ARBUCKLE, CA (ZIP 95912 Sector) | MODERATE (32/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| MORNING STAR PACKING CO (WILLIAMS) FREE PREVIEW (LOW RISK) | 2211 OLD HWY 99, WILLIAMS, CA 95987 | LOW (19/100) | No Violation Identified (0 qtrs NC) | $0 |
| COLUSA GENERATING STATION FREE PREVIEW (LOW RISK) | 4780 DIRKS RD, MAXWELL, CA 95955 | LOW (19/100) | No Violation Identified (0 qtrs NC) | $0 |
| WAPA - MAXWELL SUBSTATION FREE PREVIEW (LOW RISK) | MAXWELL SUBSTATION, MAXWELL, CA 95955 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
| 5 STAR FARM MANAGEMENT, INC FREE PREVIEW (LOW RISK) | 199 HWY 45, GRIMES, CA 95950 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — Colusa County, California Environmental Due Diligence
How many EPA-regulated environmental sites are in Colusa County, California?
Public U.S. EPA records track 554 regulated facilities in Colusa County, California (ranking #58 of 136 jurisdictions in CA). Of those, 3 (0.5%) are classified in the High-Risk tier due to significant enforcement or chemical release history, and 4 (0.7%) have active non-compliance quarters.
Which ZIP codes and cities in Colusa County have the highest regulated facility density?
Within Colusa County, the highest concentrations of EPA-tracked facilities are located in ZIP 95932 (Colusa, 189 sites), ZIP 95987 (Williams, 164 sites), ZIP 95955 (Maxwell, 52 sites), spanning municipal corridors including Williams (162 sites), Maxwell (52 sites), Grimes (34 sites).
How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in Colusa County?
Across Colusa County, 507 facilities (91.5% 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 Colusa County, CA?
Geologic indoor air screening places Colusa 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 Colusa County, CA?
Federal records track 33 Safe Drinking Water (SDWIS) facilities, 38 Clean Water Act NPDES permits, and 1 impaired water dischargers in Colusa County, alongside 2 historical FEMA federal disaster declarations (2 flood/storm events).
Does Colusa County, CA have expansive clay soil or foundation risk?
USDA regional soil engineering screening for Colusa 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.