UST Check EPA tank registry · per-address screening

UST Checkleak sites → Wyoming

Leaking underground storage tanks in Wyoming

Leak (LUST) incidents Wyoming's tank program has reported to EPA — what is still in cleanup, and what the state has closed. Data vintage 2024-12-04.

1,630leak incidents on record
345cleanups still open
1,285closed — No Further Action
21.2%share still open

Wyoming cities with the most open cleanups

CityLeak incidentsCleanups still open
Rock Springs12039
Cheyenne11730
Casper14525
Laramie7623
Rawlins5018
Riverton6016
Gillette6512
Sheridan6010
Evanston519
Worland429
Lander478
Kemmerer228
Green River277
Douglas227
Jackson476
Yellowstone Natl Park266
Newcastle236
Greybull196
Lyman116
Big Piney115
Evansville85
Lovell154
Buffalo273
Mountain View103
Glenrock93
Moorcroft93
Grand Teton Natl Park83
Medicine Bow63
Wamsutter63
Cody482
Thermopolis272
Pinedale172
Shoshoni92
Sundance92
Fort Bridger42
Glendo42
Alpine32
Edgerton32
Lysite32
Sinclair32

Wyoming counties with the most open cleanups

EPA's county rollup. Each county page adds the tank inventory — registered facilities, open and closed tanks.

CountyLeak incidentsCleanups still open
Sweetwater 165 52
Natrona 178 32
Fremont 160 31
Laramie 125 30
Carbon 102 30
Albany 83 24
Uinta 75 21
Big Horn 63 15
Teton 79 14
Lincoln 49 13
Campbell 74 12
Sheridan 75 11
Washakie 52 10
Converse 30 10
Sublette 33 8
Park 100 7
Weston 35 6
Crook 28 6
Johnson 27 4
Platte 24 3
Hot Springs 27 2
Niobrara 8 2
Goshen 24 1

Screen a specific Wyoming address

State counts set the context; a deal needs the record around one parcel — registered tanks on it, facilities within 500 and 1,500 feet, leak cleanups with status and distance, every line cited to the official record. Same data a Phase I environmental assessment starts from, in your hands before the offer.

Screen an address — $49

Tank inventory for Wyoming — registered facilities, open and closed tanks, county by county — is on the Wyoming county tables.

This is a screen of EPA-registered tank and leak records, not an environmental site assessment. State registries are incomplete by design: tanks removed before 1986 and most residential heating-oil tanks were never registered, so a clean screen cannot prove the absence of a tank. "Closed" means a tank was taken out of service per the registry — it does not certify that no contamination remains. EPA's LUST layer carries a county field for some states and not others, so city is the primary breakdown here; the county table is EPA's own county rollup.

source: EPA UST Finder EPA data vintage 2024-12-04