ZIP 57772 (Porcupine, SD) — Flood Zone, Water Quality, Soil Foundation, Radon & EPA Hazards
ZIP code 57772 in Porcupine, South Dakota (Oglala Lakota County) has 20 EPA-tracked facilities, including 2 High-Risk sites (10.0%), 1 active violators, and $17,410 in federal penalties. Beyond industrial pollution, properties in ZIP 57772 are screened across 1 historical Oglala Lakota County FEMA disasters, USDA Soil Foundation Shrink-Swell (MODERATE signal), Tap Water & Watershed Permits (11), and EPA Zone 1 — High Potential (> 4.0 pCi/L).
ZIP 57772 (Porcupine, SD) 6-in-1 Flood, Soil Foundation, Tap Water & Radon Signals
🔒 Parcel-Level Soil LEP %, Water Table Depth & Flood Zone Require Street Address Scan📊 ZIP 57772 (Porcupine, SD) Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 02, 2026)ZIP 57772 Sector Screening Map (High-Risk Pin Coordinates Locked)
Exact street pins for 2 High-Risk and 1 Active Violation sites are redacted on public directory maps.
Regulated EPA Facilities in ZIP 57772 (Porcupine, SD)
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 Score (0–100) | Compliance Status | Enforcement / Unlock |
|---|---|---|---|---|
| 🔒 Locked High-Risk EPA Enforcement Record #1 | 🔒 Exact Street & Parcel Redacted • PORCUPINE, SD (ZIP 57772 Sector) | HIGH (64/100) | Significant Violation (5 qtrs NC) | 🔒 5 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • PORCUPINE, SD (ZIP 57772 Sector) | MODERATE (33/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • PORCUPINE, SD (ZIP 57772 Sector) | MODERATE (30/100) | No Violation Identified (0 qtrs NC) | 🔒 $10,000+ Federal Fine • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • PORCUPINE, SD (ZIP 57772 Sector) | MODERATE (30/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • PORCUPINE, SD (ZIP 57772 Sector) | MODERATE (19/100) | No Violation Identified (0 qtrs NC) | 🔒 Federal Penalty on File • Unlock → |
| PORCUPINE CLINIC FREE PREVIEW (LOW RISK) | N 43 14.316� AND W 102 19.698�, PORCUPINE, SD 57772 | LOW (16/100) | No Violation Identified (0 qtrs NC) | $0 |
| PORCUPINE DAY SCHOOL LAGOONS FREE PREVIEW (LOW RISK) | 23 PORCUPINE SCHOOL ROAD, PORCUPINE, SD 57772 | LOW (12/100) | No Violation Identified (0 qtrs NC) | $0 |
| 2019 STORM REPAIRS 2-7 FREE PREVIEW (LOW RISK) | BIA 2 3.1 MILES FROM BIA 27 JUNCTION, ROCKYFORD, SD 57772 | LOW (12/100) | No Violation Identified (0 qtrs NC) | $0 |
| ROCKY FORD SCHOOL FREE PREVIEW (LOW RISK) | 14 BIA 33, PINE RIDGE RESERVATION, SD 57772 | LOW (12/100) | No Violation Identified (0 qtrs NC) | $0 |
| 🔒 Locked Regulated EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • PORCUPINE, SD (ZIP 57772 Sector) | LOW (11/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • PORCUPINE, SD (ZIP 57772 Sector) | LOW (10/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • SHARPS CORNER, SD (ZIP 57772 Sector) | LOW (10/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
Frequently Asked Questions — ZIP 57772 (Porcupine, SD) EPA Dataset & Radon
DATASET: U.S. EPA ECHO • FRS • RCRAInfo • TRI (November 02, 2026)How many EPA-tracked environmental sites are in ZIP code 57772 (Porcupine, SD)?
ZIP code 57772 (Porcupine, SD) contains 20 EPA-tracked facilities, of which 2 (10.0%) are classified in the High-Risk tier, 1 (5.0%) have active compliance violations, and 2 (10.0%) handle RCRA hazardous waste.
How does ZIP 57772 compare to Oglala Lakota County and South Dakota averages?
In ZIP 57772, 10.0% of regulated sites are rated High Risk, compared to 10.5% across Oglala Lakota County and 0.7% statewide in South Dakota.
What is the EPA Radon Zone and ASTM Phase I screening radius for ZIP 57772?
Geologic screening places ZIP 57772 in EPA Zone 1 — High Potential (> 4.0 pCi/L). Property buyers should screen a 0.25-mile immediate buffer for vapor-intrusion sources and a 1.0-mile radius for CERCLA/RCRA sites.
Is ZIP 57772 (Porcupine, SD) in a FEMA flood zone and what is the flood disaster history?
Oglala Lakota County has recorded 1 historical FEMA federal disaster declarations (0 flood, hurricane, or severe storm declarations). Run a street address scan in ZIP 57772 to unlock the exact parcel FEMA flood zone (AE / VE / X) and mandatory flood insurance status.
Does ZIP 57772 have expansive clay soil, foundation problems, or drinking water violations?
USDA regional soil screening for ZIP 57772 indicates a MODERATE shrink-swell risk signal. Within ZIP 57772, federal registries track 1 SDWIS drinking water facilities, 10 Clean Water NPDES permits, and 0 impaired water body dischargers. Unlock a full property report for exact soil LEP %, water table depth, and utility violation dockets.