Stephens County, Oklahoma — Property Hazard, Flood Zone, Soil, Water & EPA Guide
What Are the Flood, Soil Foundation & EPA Risks in Stephens County, OK?
In Stephens County, Oklahoma, public U.S. EPA records track 180 regulated facilities (#58 of 154 in Oklahoma), including 0 (0.0%) High-Risk sites and $5,320 in federal penalties. Countywide due diligence also covers 0 Safe Drinking Water (SDWIS) facilities, 1 Clean Water NPDES permits, 6 FEMA Federal Disaster Declarations (2 flood/storm), USDA Soil Foundation Shrink-Swell (LOW signal), and EPA Zone 3 — Low Potential (< 2.0 pCi/L).
Stephens County, OK 6-in-1 Flood, Soil Foundation, Tap Water & Radon Signals
🔒 Parcel-Level Soil LEP %, Water Table Depth & Flood Zone Require Street Address Scan📊 Stephens County, OK Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 03, 2026)Municipalities in Stephens County
ZIP Codes in Stephens County
Top EPA Regulated Facilities in Stephens County, OK
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 Regulated EPA Enforcement Record #1 | 🔒 Exact Street & Parcel Redacted • RATLIFF CITY, OK (ZIP 73425 Sector) | MODERATE (30/100) | Resolved / Historical Non-Compliance (1 qtrs NC) | 🔒 Federal Penalty on File • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • BRAY, OK (ZIP 73533 Sector) | MODERATE (30/100) | No Violation Identified (0 qtrs NC) | 🔒 Federal Penalty on File • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • DUNCAN, OK (ZIP 73533 Sector) | MODERATE (30/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • DUNCAN, OK (ZIP 73533 Sector) | MODERATE (30/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • DUNCAN, OK (ZIP 73533 Sector) | MODERATE (30/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • DUNCAN, OK (ZIP 73533 Sector) | MODERATE (30/100) | Resolved / Historical Non-Compliance (1 qtrs NC) | 🔒 1 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • DUNCAN, OK (ZIP 73533 Sector) | MODERATE (30/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • COMANCHE, OK (ZIP 73529 Sector) | MODERATE (30/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| BCE MACH LLC / CASSIE ARMOUR 17 20 S1H ALICE TUCKER 1 FREE PREVIEW (LOW RISK) | 1.25 MI E OF N2990/E1750 RDS, VELMA, OK 73533 | LOW (13/100) | No Violation Identified (0 qtrs NC) | $0 |
| CONTINENTAL RESOURCES / SYMPSON 11 6H 12 6H 13 6 7XH FREE PREVIEW (LOW RISK) | 0.35 MI E OF E1610/N2990 RDS, PURDY, OK 73055 | LOW (12/100) | No Violation Identified (0 qtrs NC) | $0 |
| XTO ENERGY INC / LELAND 1 18H PRODUCTION SITE FREE PREVIEW (LOW RISK) | 0.75 MI SE OF CR-2990/SEMINOLE, VELMA, OK 73491 | LOW (12/100) | No Violation Identified (0 qtrs NC) | $0 |
| ONEOK FIELD SERVICES CO LLC / COTTONWOOD COMPRESSOR STATION FREE PREVIEW (LOW RISK) | SE OF N2930 RD/BASELINE RD, VELMA, OK 73533 | LOW (12/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — Stephens County, Oklahoma Environmental Due Diligence
How many EPA-regulated environmental sites are in Stephens County County, Oklahoma?
Public U.S. EPA records track 180 regulated facilities in Stephens County County, Oklahoma (ranking #58 of 154 jurisdictions in OK). Of those, 0 (0.0%) are classified in the High-Risk tier due to significant enforcement or chemical release history, and 0 (0.0%) have active non-compliance quarters.
Which ZIP codes and cities in Stephens County County have the highest regulated facility density?
Within Stephens County County, the highest concentrations of EPA-tracked facilities are located in ZIP 73055 (Purdy, 141 sites), ZIP 73529 (Comanche, 19 sites), ZIP 73425 (Ratliff City, 7 sites), spanning municipal corridors including Purdy (74 sites), Comanche (18 sites), Tussy (13 sites).
How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in Stephens County County?
Across Stephens County County, 0 facilities (0.0% 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 Stephens County County, OK?
Geologic indoor air screening places Stephens County County in EPA Zone 3 — Low Potential (< 2.0 pCi/L). Counties in EPA Radon Zone 3 have a predicted average indoor radon level below 2.0 pCi/L, indicating lower regional geologic radon risk.
How many drinking water systems (SDWIS), impaired water bodies, and FEMA flood disasters are recorded in Stephens County County, OK?
Federal records track 0 Safe Drinking Water (SDWIS) facilities, 1 Clean Water Act NPDES permits, and 0 impaired water dischargers in Stephens County County, alongside 6 historical FEMA federal disaster declarations (2 flood/storm events).
Does Stephens County, OK have expansive clay soil or foundation risk?
USDA regional soil engineering screening for Stephens County indicates a LOW 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.