Johnston County, Oklahoma — Property Hazard, Flood Zone, Soil, Water & EPA Guide
What Are the Flood, Soil Foundation & EPA Risks in Johnston County, OK?
In Johnston County, Oklahoma, public U.S. EPA records track 106 regulated facilities (#80 of 154 in Oklahoma), including 3 (2.8%) High-Risk sites and $27,312 in federal penalties. Countywide due diligence also covers 16 Safe Drinking Water (SDWIS) facilities, 24 Clean Water NPDES permits, 3 FEMA Federal Disaster Declarations (1 flood/storm), USDA Soil Foundation Shrink-Swell (MODERATE signal), and EPA Zone 3 — Low Potential (< 2.0 pCi/L).
Johnston 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📊 Johnston County, OK Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 05, 2026)Municipalities in Johnston County
Top EPA Regulated Facilities in Johnston 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 • TISHOMINGO, OK (ZIP 73460 Sector) | MODERATE (54/100) | Violation Identified (10 qtrs NC) | 🔒 $10,000+ Federal Fine • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • MILL CREEK, OK (ZIP 74856 Sector) | MODERATE (31/100) | No Violation Identified (0 qtrs NC) | 🔒 $10,000+ Federal Fine • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • COLEMAN, OK (ZIP 73461 Sector) | MODERATE (30/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • TISHOMINGO, OK (ZIP 73460 Sector) | MODERATE (30/100) | Resolved / Historical Non-Compliance (8 qtrs NC) | 🔒 8 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • MILBURN, OK (ZIP 73450 Sector) | MODERATE (30/100) | Resolved / Historical Non-Compliance (3 qtrs NC) | 🔒 3 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • MILL CREEK, OK (ZIP 74856 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 • RAVIA, OK (ZIP 73455 Sector) | MODERATE (30/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • , OK (ZIP Sector) | MODERATE (29/100) | Resolved / Historical Non-Compliance (9 qtrs NC) | 🔒 9 Qtrs Non-Compliance • Unlock → |
| SUNDOWNER TRAILERS FREE PREVIEW (LOW RISK) | 9805 S HWY 48, COLEMAN, OK 73432 | LOW (18/100) | No Violation Identified (0 qtrs NC) | $0 |
| MERIDIAN AGGREGATES CO LP / MILL CREEK FREE PREVIEW (LOW RISK) | 4 MI S OF MILL CREEK OFF HWY 7, MILL CREEK, OK 74856 | LOW (18/100) | No Violation Identified (0 qtrs NC) | $0 |
| WAPANUCKA OOLITIC LIMESTONE QUARRY FREE PREVIEW (LOW RISK) | 10203 EAST MILE CORNER RD, BROMIDE, OK 74530 | LOW (18/100) | No Violation Identified (0 qtrs NC) | $0 |
| ODOT/KVK CONTRACTING, INC., NBI# 14450 FREE PREVIEW (LOW RISK) | SHE 199 OVER TURKEY CREEK, MANNSVILLE, OK 73447 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — Johnston County, Oklahoma Environmental Due Diligence
How many EPA-regulated environmental sites are in Johnston County, Oklahoma?
Public U.S. EPA records track 106 regulated facilities in Johnston County, Oklahoma (ranking #80 of 154 jurisdictions in OK). Of those, 3 (2.8%) are classified in the High-Risk tier due to significant enforcement or chemical release history, and 4 (3.8%) have active non-compliance quarters.
Which ZIP codes and cities in Johnston County have the highest regulated facility density?
Within Johnston County, the highest concentrations of EPA-tracked facilities are located in ZIP 73447 (Mannsville, 70 sites), ZIP 74871 (Stonewall, 55 sites), ZIP 73460 (Tishomingo, 25 sites), spanning municipal corridors including Mannsville (66 sites), Stonewall (28 sites), Tishomingo (27 sites).
How many hazardous waste (RCRA) and toxic release (TRI) handlers operate in Johnston County?
Across Johnston County, 17 facilities (16.0% 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 Johnston County, OK?
Geologic indoor air screening places Johnston 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 Johnston County, OK?
Federal records track 16 Safe Drinking Water (SDWIS) facilities, 24 Clean Water Act NPDES permits, and 2 impaired water dischargers in Johnston County, alongside 3 historical FEMA federal disaster declarations (1 flood/storm events).
Does Johnston County, OK have expansive clay soil or foundation risk?
USDA regional soil engineering screening for Johnston County indicates a MODERATE 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.