PUBLIC DATA SOURCE: U.S. EPA ECHO, FRS, RCRA, TRI & FEMA NFHL 3,230,651 Regulated Sites • All 50 States • Data as of November 01, 2026
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6-IN-1 STATE ENVIRONMENTAL, WATER, SOIL & FLOOD HUB • WY

Wyoming (WY) — Flood Zone, Tap Water Quality, Soil Foundation, Radon & EPA Hazards

Scan an Address in Wyoming →

According to public U.S. EPA, USDA, and FEMA registries (current as of November 01, 2026), Wyoming tracks 11,290 EPA-regulated facilities, including 146 High-Risk sites (1.3%), 584 active violators, and $65,276,970 in federal penalties. Statewide environmental due diligence also covers 895 Safe Drinking Water (SDWIS) facilities, 5,163 Clean Water NPDES permits, 7 historical FEMA disaster declarations, USDA Soil Shrink-Swell (MODERATE regional signal), and EPA Zone 1 — High Potential (> 4.0 pCi/L).

Total EPA Sites
11,290
High-Risk Sites (1.3%)
146
Active Violators (5.2%)
584
Drinking & Clean Water
6,058
Federal Penalties
$65,276,970

Wyoming (WY) 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
7 Statewide FEMA Declarations (1 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
895 SDWIS Systems • 5,163 NPDES Permits
🔒 470 Impaired Water (303d) & 992 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

📊 Wyoming (WY) 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 3,631 (32.2%)
Clean Water (NPDES) & Drinking Water (SDWIS) 6,058 (53.7%)
Active EPA Non-Compliance Dockets 584 (5.2%)
High-Risk Enforcement Facilities 146 (1.3%)
2. FEMA NRI & USGS Hazard Index (1–10) Relatively Low (68.9/100)
🌊 Flood Exposure 7/10 • Relatively Moderate
🔥 Wildfire Hazard 9/10 • Relatively Moderate
☀️ Extreme Heat 2/10 • Very Low
🌪️ Severe Wind / Storm 4/10 • Relatively Low
🫨 USGS Earthquake 8/10 • Relatively Low
3. High-Risk Density vs. U.S. Baseline
Wyoming (WY) High-Risk Rate 1.3%
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.
🔒 Run 1-Mile Property Address Scan →

Major Municipal Environmental Directories in Wyoming

Unknown
3,575 sites
16 High
Casper
632 sites
5 High
(Unknown City)
561 sites
20 High
Gillette
549 sites
2 High
Cheyenne
540 sites
5 High
Rock Springs
358 sites
2 High
Sheridan
245 sites
5 High
Riverton
199 sites
4 High
Laramie
198 sites
6 High
Evanston
192 sites
2 High
Cody
182 sites
1 High
Jackson
173 sites
9 High
Unk
167 sites
1 High
Douglas
158 sites
1 High
Worland
125 sites
0 High
Rawlins
110 sites
2 High
Torrington
102 sites
2 High
Buffalo
99 sites
0 High
Lander
97 sites
4 High
Powell
88 sites
0 High
Green River
86 sites
3 High
Wheatland
66 sites
2 High
Pinedale
66 sites
2 High
Mills
66 sites
2 High
Wamsutter
64 sites
0 High
Newcastle
64 sites
2 High
Kemmerer
63 sites
2 High
Thermopolis
60 sites
2 High
Evansville
59 sites
1 High
Greybull
53 sites
1 High
Glenrock
48 sites
2 High
Afton
47 sites
2 High
Lovell
47 sites
2 High
Guernsey
40 sites
0 High
Saratoga
39 sites
1 High
Dubois
39 sites
3 High
Big Piney
36 sites
2 High
Lusk
35 sites
0 High
Wilson
35 sites
0 High
Sundance
34 sites
0 High
Wright
30 sites
0 High
Fort Washakie
25 sites
0 High
Baggs
23 sites
1 High
Sinclair
23 sites
1 High
Moorcroft
22 sites
0 High
Ranchester
22 sites
0 High
Yellowstone National Park
21 sites
1 High
Basin
20 sites
0 High
Thayne
19 sites
0 High
Lyman
19 sites
1 High
Granger
19 sites
2 High
Opal
19 sites
1 High
Pine Bluffs
19 sites
0 High
Campbell County
18 sites
0 High
Alpine
18 sites
0 High
Shoshoni
17 sites
0 High
Boulder
16 sites
0 High
Mountain View
16 sites
1 High
Converse County
16 sites
0 High
Moran
16 sites
0 High

Counties in Wyoming (84)

County Total Sites High Risk RCRA Waste
Natrona County 818 7 553
Campbell County 719 8 360
Sweetwater County 668 10 361
Laramie County 638 7 341
Fremont County 512 13 241
Park County 390 2 191
Sheridan County 321 6 173
Teton County 301 12 89
Carbon County 300 6 146
Converse County 285 1 138
Lincoln County 265 7 101
Uinta County 259 2 159
Albany County 240 9 114
Big Horn County 203 3 91
Johnson County 200 4 65
Sublette County 196 6 54
Washakie County 183 0 99
Crook County 161 1 48
Platte County 149 3 51
Goshen County 137 2 67
Weston County 121 2 64
Niobrara County 111 3 40
Hot Springs County 97 2 43
Portable Source County 80 0 0
Fremont County 47 2 0
Laramie County 44 0 2
Natrona County 42 2 6
Sweetwater County 38 0 1
Teton County 29 0 0
Campbell County 22 0 0
Sheridan County 22 0 0
Out-Of-State County 19 0 19
Carbon County 18 1 1
Albany County 14 0 0
Lincoln County 14 1 0
Uinta County 14 2 1
Converse County 13 2 1
Park County 13 0 1
Sublette County 10 1 0
Unk County 10 0 0
Big Horn County 9 1 0
Platte County 9 0 1
Weston County 6 0 0
Goshen County 5 0 0
Washakie County 5 0 0
Crook County 4 0 0
Johnson County 3 0 0
Yellowstone National Park County 3 0 3
Hot Springs County 2 0 0
Larimer County 2 0 0
Larimer County 2 0 0
Rosebud County 2 0 0
Salt Lake County 2 0 0
Arapahoe County 1 0 0
Bannock County 1 0 0
Bighorn County 1 0 0
Bonneville County 1 0 0
Brazoria County 1 1 0
Chautauqua County 1 1 0
Clark County 1 0 0
Colfax County 1 0 0
Columbia County 1 0 0
Daviess County 1 0 0
Davis County 1 0 0
Eddy County 1 0 0
Eddy County 1 0 0
Fergus County 1 0 0
Gallatin County 1 0 0
Jefferson County 1 0 0
Kane County 1 0 0
Lawrence County 1 0 0
Loudon County 1 0 0
Madison County 1 0 0
Musselshell County 1 0 0
Oklahoma County 1 0 0
Powder River County 1 0 0
Pulaski County 1 0 0
Stillwater County 1 0 0
Tulsa County 1 0 0
Uintah County 1 0 0
Unknown County 1 0 0
Utah County 1 0 0
Wheatland County 1 0 0
Yellowstone County 1 0 0

Highest-Density ZIP Codes in Wyoming

ZIP Code City Total Sites High Risk
99999 Park 3,071 32
83001 Jackson 151 8
82801 Sheridan 251 5
82501 Riverton 201 5
82070 Laramie 148 5
82520 Lander 123 5
82601 Casper 304 4
82001 Cheyenne 257 4
82935 Green River 90 4
82513 Dubois 39 3
82901 Rock Springs 321 2
82930 Evanston 181 2
82301 Rawlins 115 2
82240 Torrington 103 2
82701 Newcastle 76 2
83101 Kemmerer 65 2
82201 Wheatland 63 2
82644 Mills 60 2
82190 Se Of Mammoth Hot Springs 53 2
83113 Big Piney 48 2
82637 Glenrock 48 2
82431 Lovell 48 2
83110 Afton 47 2
82433 Meeteetse 19 2
82414 Cody 179 1
82633 Douglas 170 1
82718 Gillette 158 1
82717 Gillette 84 1
82941 Pinedale 68 1
82609 Casper 65 1
82443 Thermopolis 62 1
82636 Evansville 59 1
82426 Greybull 51 1
82321 Baggs 39 1
82331 Saratoga 39 1
82072 Laramie 35 1
82721 24 Miles N/Nw Of Moorcrof 28 1
83002 Jackson 25 1
82934 Granger 24 1
82334 Sinclair 22 1
82937 Lyman 21 1
82939 Mountain View 17 1
83124 Opal 17 1
82942 Point Of Rocks 15 1
82642 Lysite 13 1
82222 Niobrara County 10 1
83114 Cokeville 5 1
82006 Cheyenne 2 1
82063 Jelm 2 1
82716 Gillette 335 0
82604 Casper 206 0
82007 Cheyenne 151 0
82401 Worland 129 0
82834 Buffalo 97 0
82009 Cheyenne 97 0
82435 Powell 91 0
80227 Sw Of Redbird 88 0
82336 Wamsutter 66 0
82602 Casper 62 0
82225 Node 50 0

Highest-Scored EPA Enforcement & Contamination Facilities in Wyoming

100% of High-Risk & penalized facilities have facility names, street names, and dockets redacted (3 Low-Risk compliant records shown as Free Previews).

Unlock Full Unredacted Dossier →
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 • SINCLAIR, WY (ZIP 82334 Sector) HIGH (96/100) Significant Violation (12 qtrs NC) 🔒 $100,000+ Federal Fine • Unlock →
🔒 Locked High-Risk EPA Enforcement Record #2 🔒 Exact Street & Parcel Redacted • CHEYENNE, WY (ZIP 82001 Sector) HIGH (89/100) Significant Violation (5 qtrs NC) 🔒 $100,000+ Federal Fine • Unlock →
🔒 Locked High-Risk EPA Enforcement Record #3 🔒 Exact Street & Parcel Redacted • POINT OF ROCKS, WY (ZIP 82942 Sector) HIGH (81/100) Significant Violation (12 qtrs NC) 🔒 $10,000+ Federal Fine • Unlock →
🔒 Locked High-Risk EPA Enforcement Record #4 🔒 Exact Street & Parcel Redacted • WHEATLAND, WY (ZIP 82201 Sector) HIGH (79/100) Significant Violation (9 qtrs NC) 🔒 $10,000+ Federal Fine • Unlock →
🔒 Locked High-Risk EPA Enforcement Record #5 🔒 Exact Street & Parcel Redacted • CHEYENNE, WY (ZIP 82001 Sector) HIGH (74/100) Significant Violation (12 qtrs NC) 🔒 $10,000+ Federal Fine • Unlock →
🔒 Locked High-Risk EPA Enforcement Record #6 🔒 Exact Street & Parcel Redacted • , WY (ZIP Sector) HIGH (71/100) Significant Violation (11 qtrs NC) 🔒 Federal Penalty on File • Unlock →
🔒 Locked High-Risk EPA Enforcement Record #7 🔒 Exact Street & Parcel Redacted • CASPER, WY (ZIP 82609 Sector) HIGH (71/100) Significant Violation (12 qtrs NC) 🔒 12 Qtrs Non-Compliance • Unlock →
🔒 Locked High-Risk EPA Enforcement Record #8 🔒 Exact Street & Parcel Redacted • SWEETWATER COUNTY, WY (ZIP 82935 Sector) HIGH (70/100) Significant Violation (12 qtrs NC) 🔒 $10,000+ Federal Fine • Unlock →
NALCO CHAMPION FREE PREVIEW (LOW RISK) 40 JAMES FAIRBANKS, BOULDER, WY 82923 LOW (17/100) No Violation Identified (0 qtrs NC) $0
CATERPILLAR (CAT) FREE PREVIEW (LOW RISK) 6500 SWANSON ROAD, GILLETTE, WY 82717 LOW (16/100) No Violation Identified (0 qtrs NC) $0
USDA - FOREST SERVICE FREE PREVIEW (LOW RISK) 1 MI W OF BONDURANT ON HWY 189, BONDURANT, WY 82922 LOW (16/100) No Violation Identified (0 qtrs NC) $0
HI TECH AUTO FREE PREVIEW (LOW RISK) 110 1ST STREET, SARATOGA, WY 82331 LOW (16/100) No Violation Identified (0 qtrs NC) $0
🔒 + 11,278 Additional Regulated & Enforcement Records in Wyoming Redacted from Public Directory Run 1-Mile Property Scan to Unlock All Records →

Frequently Asked Questions — Wyoming (WY) Environmental Due Diligence & EPA Dataset

How many EPA-regulated environmental sites and high-risk facilities are in Wyoming?

Public U.S. EPA records track 11,290 regulated facilities across Wyoming. Of those, 146 (1.3%) are classified in the High-Risk tier due to formal enforcement actions, penalties, or toxic chemical releases, and 584 (5.2%) have active non-compliance quarters.

Which counties and ZIP codes in Wyoming have the highest concentration of EPA-regulated sites?

In Wyoming, the highest regulated facility volumes are concentrated in Natrona County (818 sites), Campbell County (719 sites), Sweetwater County (668 sites), Laramie County (638 sites), with key high-risk postal sectors including ZIP 99999 (Park, 32 high-risk), ZIP 83001 (Jackson, 8 high-risk), ZIP 82801 (Sheridan, 5 high-risk), ZIP 82501 (Riverton, 5 high-risk).

How many drinking water systems (SDWIS), Clean Water permits, and FEMA disaster declarations are recorded in Wyoming?

Statewide in Wyoming, federal registries track 895 Safe Drinking Water (SDWIS) facilities, 5,163 Clean Water Act NPDES permits, and 470 impaired water body (303d) dischargers, alongside 7 historical FEMA disaster declarations.

What is the EPA Radon Zone and USDA Soil Foundation Risk for properties in Wyoming?

Regional geologic screening places Wyoming 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.