6-IN-1 STATE ENVIRONMENTAL, WATER, SOIL & FLOOD HUB • SD
Scan an Address in South Dakota →
South Dakota (SD) — Flood Zone, Tap Water Quality, Soil Foundation, Radon & EPA Hazards
According to public U.S. EPA, USDA, and FEMA registries (current as of November 01, 2026), South Dakota tracks 8,668 EPA-regulated facilities, including 57 High-Risk sites (0.7%), 154 active violators, and $53,595,972 in federal penalties. Statewide environmental due diligence also covers 1,535 Safe Drinking Water (SDWIS) facilities, 3,951 Clean Water NPDES permits, 15 historical FEMA disaster declarations, USDA Soil Shrink-Swell (MODERATE regional signal), and EPA Zone 1 — High Potential (> 4.0 pCi/L).
Total EPA Sites
8,668
High-Risk Sites (0.7%)
57
Active Violators (1.8%)
154
Drinking & Clean Water
5,486
Federal Penalties
$53,595,972
South Dakota (SD) 6-in-1 Flood, Soil Foundation, Tap Water & Radon Screening Signals
🔒 Parcel-Level Soil LEP %, Water Table Depth & Flood Zone Require Street Address Scan🌊 Flood Zone & FEMA Disaster History
15 Statewide FEMA Declarations (8 Flood/Storm)
🔒 Exact Parcel Flood Zone (AE / VE / X) & SFHA Mandatory Insurance Status Locked
Check Property Flood Zone →
🪨 USDA Soil, Foundation & Water Table
Regional Shrink-Swell Signal: MODERATE • Pipe Corrosion: Moderate
🔒 Exact USDA Soil Series, Linear Extensibility (LEP %) & Water Table Depth (ft) Locked
Unlock Parcel Soil Test →
🚰 Tap Water (SDWIS) & PFAS Check
1,535 SDWIS Systems • 3,951 NPDES Permits
🔒 583 Impaired Water (303d) & 384 Violation Dockets Locked
Unlock Utility Violation Log →
☢️ EPA Radon & Karst Sinkhole
EPA Zone 1 — High Potential (> 4.0 pCi/L)
Low / Non-Karst Bedrock Formation
🔒 0.25-Mi Vapor Intrusion Buffer Locked
📊 South Dakota (SD) Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 01, 2026)1. Regulatory & Water Program Composition
RCRA Hazardous Waste Generators
2,422 (27.9%)
Clean Water (NPDES) & Drinking Water (SDWIS)
5,486 (63.3%)
Active EPA Non-Compliance Dockets
154 (1.8%)
High-Risk Enforcement Facilities
57 (0.7%)
2. FEMA NRI & USGS Hazard Index (1–10)
Relatively Moderate (89.5/100)
🌊 Flood Exposure
9/10 • Relatively Moderate
🔥 Wildfire Hazard
7/10 • Relatively Low
☀️ Extreme Heat
9/10 • Relatively Moderate
🌪️ Severe Wind / Storm
10/10 • Relatively High
🫨 USGS Earthquake
4/10 • Very Low
3. High-Risk Density vs. U.S. Baseline
South Dakota (SD) High-Risk Rate
0.7%
U.S. National EPA Baseline
3.6%
Why Scan a Specific Street Address? Public state pages show aggregate counts only. A paid property report unlocks exact facility names & distances in feet, USDA soil LEP % & water table depth, utility water violations, and parcel FEMA flood zone.
Major Municipal Environmental Directories in South Dakota
Sioux Falls
1,289 sites
Rapid City
702 sites
Watertown
292 sites
Aberdeen
195 sites
Brookings
185 sites
Mitchell
157 sites
Yankton
157 sites
Pierre
140 sites
Spearfish
129 sites
Huron
119 sites
South Dakota
104 sites
Brandon
85 sites
Custer
83 sites
Box Elder
81 sites
Tea
79 sites
Sturgis
77 sites
Madison
76 sites
Harrisburg
61 sites
Vermillion
55 sites
Belle Fourche
53 sites
Pine Ridge
53 sites
Lead
47 sites
Dell Rapids
46 sites
Beresford
42 sites
North Sioux City
42 sites
Hartford
41 sites
Hot Springs
40 sites
Eagle Butte
40 sites
Piedmont
39 sites
Milbank
38 sites
Hill City
38 sites
Canton
38 sites
Black Hawk
37 sites
Miller
35 sites
Mission
34 sites
Redfield
32 sites
Salem
31 sites
Rosebud
31 sites
Winner
30 sites
Chamberlain
30 sites
Mobridge
29 sites
Lennox
29 sites
Deadwood
28 sites
Fort Pierre
27 sites
Unknown
26 sites
Platte
25 sites
Arlington
25 sites
Flandreau
25 sites
Clear Lake
24 sites
Lower Brule
24 sites
Freeman
24 sites
Lake Andes
23 sites
Gettysburg
22 sites
Keystone
22 sites
Unk
22 sites
Wagner
22 sites
Philip
22 sites
Crooks
22 sites
Elkton
22 sites
Webster
22 sites
Counties in South Dakota (120)
Highest-Density ZIP Codes in South Dakota
| ZIP Code | City | Total Sites | High Risk |
|---|---|---|---|
| 57401 | Aberdeen | 189 | 3 |
| 57548 | Lower Brule | 23 | 3 |
| 57104 | Sioux Falls | 404 | 2 |
| 57785 | Sturgis | 78 | 2 |
| 57772 | Porcupine | 20 | 2 |
| 57003 | Baltic | 15 | 2 |
| 57201 | Watertown | 294 | 1 |
| 57107 | Sioux Falls | 205 | 1 |
| 57702 | Rapid City | 197 | 1 |
| 57006 | Brookings | 176 | 1 |
| 57078 | Yankton | 160 | 1 |
| 57301 | Mitchell | 158 | 1 |
| 57783 | Spearfish | 127 | 1 |
| 57105 | Sioux Falls | 123 | 1 |
| 57350 | Huron | 119 | 1 |
| 57703 | Rapid City | 98 | 1 |
| 57770 | Pine Ridge | 54 | 1 |
| 57754 | Lead | 49 | 1 |
| 57004 | Beresford | 43 | 1 |
| 57625 | Eagle Butte | 39 | 1 |
| 57252 | Milbank | 38 | 1 |
| 57469 | Redfield | 31 | 1 |
| 57369 | Platte | 26 | 1 |
| 57029 | Freeman | 24 | 1 |
| 57339 | Fort Thompson | 22 | 1 |
| 57451 | Ipswich | 22 | 1 |
| 57274 | Webster | 22 | 1 |
| 57430 | Britton | 18 | 1 |
| 57744 | Hermosa | 18 | 1 |
| 57353 | Iroquois | 17 | 1 |
| 57735 | Edgemont | 16 | 1 |
| 57002 | Aurora | 13 | 1 |
| 57248 | Lake Norden | 12 | 1 |
| 57656 | Timber Lake | 12 | 1 |
| 57237 | Gary | 11 | 1 |
| 57059 | Scotland | 11 | 1 |
| 57577 | Wanblee | 10 | 1 |
| 57075 | Wentworth | 9 | 1 |
| 57015 | Chancellor | 8 | 1 |
| 57450 | Hoven | 8 | 1 |
| 57551 | Martin | 8 | 1 |
| 57759 | Nemo | 8 | 1 |
| 57040 | Lesterville | 7 | 1 |
| 57043 | Marion | 7 | 1 |
| 57714 | Allen | 5 | 1 |
| 57433 | Columbia | 4 | 1 |
| 57232 | Eden | 3 | 1 |
| 57850 | Winner | 1 | 1 |
| 57701 | Rapid City | 374 | 0 |
| 57501 | Pierre | 158 | 0 |
| 57108 | Sioux Falls | 147 | 0 |
| 57106 | Sioux Falls | 138 | 0 |
| 57110 | Sioux Falls | 101 | 0 |
| 57005 | Brandon | 90 | 0 |
| 57730 | Custer | 89 | 0 |
| 57103 | Sioux Falls | 88 | 0 |
| 57064 | Tea | 78 | 0 |
| 57042 | Madison | 77 | 0 |
| 57719 | Box Elder | 74 | 0 |
| 57709 | Rapid City | 62 | 0 |
Highest-Scored EPA Enforcement & Contamination Facilities in South Dakota
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 • WEBSTER, SD (ZIP 57274 Sector) | HIGH (68/100) | Significant Violation (6 qtrs NC) | 🔒 $10,000+ Federal Fine • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • LAKE NORDEN, SD (ZIP 57248 Sector) | HIGH (67/100) | Significant Violation (9 qtrs NC) | 🔒 9 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • FREEMAN, SD (ZIP 57029 Sector) | HIGH (65/100) | Significant Violation (3 qtrs NC) | 🔒 3 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • EAGLE BUTTE, SD (ZIP 57625 Sector) | HIGH (65/100) | Significant Violation (11 qtrs NC) | 🔒 11 Qtrs Non-Compliance • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • BROOKINGS, SD (ZIP 57006 Sector) | HIGH (64/100) | No Violation Identified (0 qtrs NC) | 🔒 $100,000+ Federal Fine • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • HOVEN, SD (ZIP 57450 Sector) | HIGH (64/100) | Resolved / Historical Non-Compliance (1 qtrs NC) | 🔒 $100,000+ Federal Fine • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • ABERDEEN, SD (ZIP 57401 Sector) | HIGH (64/100) | No Violation Identified (0 qtrs NC) | 🔒 $100,000+ Federal Fine • Unlock → |
| 🔒 Locked High-Risk EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • LEAD, SD (ZIP 57754 Sector) | HIGH (64/100) | No Violation Identified (0 qtrs NC) | 🔒 $10,000+ Federal Fine • Unlock → |
| POLLOCK SCHOOL FREE PREVIEW (LOW RISK) | 916 EAST AVENUE, POLLOCK, SD 57648 | LOW (17/100) | No Violation Identified (0 qtrs NC) | $0 |
| WOODEN MALLET CUSTOM FREE PREVIEW (LOW RISK) | 420 FIRST AVE NE, ABERDEEN, SD 57401 | LOW (16/100) | No Violation Identified (0 qtrs NC) | $0 |
| AVERA HEART HOSPITAL OF SOUTH DAKOTA FREE PREVIEW (LOW RISK) | 4500 W. 69TH STREET, SIOUX FALLS, SD 57108 | LOW (15/100) | No Violation Identified (0 qtrs NC) | $0 |
| WESTERN PRINTING COMPANY FREE PREVIEW (LOW RISK) | 701 ENTERPRISE STREET NORTH, ABERDEEN, SD 57401 | LOW (15/100) | No Violation Identified (0 qtrs NC) | $0 |
🔒 + 8,656 Additional Regulated & Enforcement Records in South Dakota Redacted from Public Directory
Run 1-Mile Property Scan to Unlock All Records →
Frequently Asked Questions — South Dakota (SD) Environmental Due Diligence & EPA Dataset
How many EPA-regulated environmental sites and high-risk facilities are in South Dakota?
Public U.S. EPA records track 8,668 regulated facilities across South Dakota. Of those, 57 (0.7%) are classified in the High-Risk tier due to formal enforcement actions, penalties, or toxic chemical releases, and 154 (1.8%) have active non-compliance quarters.
Which counties and ZIP codes in South Dakota have the highest concentration of EPA-regulated sites?
In South Dakota, the highest regulated facility volumes are concentrated in Minnehaha County (718 sites), Pennington County (583 sites), Minnehaha County (467 sites), Pennington County (273 sites), with key high-risk postal sectors including ZIP 57401 (Aberdeen, 3 high-risk), ZIP 57548 (Lower Brule, 3 high-risk), ZIP 57104 (Sioux Falls, 2 high-risk), ZIP 57785 (Sturgis, 2 high-risk).
How many drinking water systems (SDWIS), Clean Water permits, and FEMA disaster declarations are recorded in South Dakota?
Statewide in South Dakota, federal registries track 1,535 Safe Drinking Water (SDWIS) facilities, 3,951 Clean Water Act NPDES permits, and 583 impaired water body (303d) dischargers, alongside 15 historical FEMA disaster declarations.
What is the EPA Radon Zone and USDA Soil Foundation Risk for properties in South Dakota?
Regional geologic screening places South Dakota in EPA Zone 1 — High Potential (> 4.0 pCi/L) with USDA regional soil shrink-swell rated MODERATE. Run a street address scan to unlock exact parcel soil LEP %, water table depth, and flood zone.