EPA-regulated facilities near Cheyenne, WY
There are 896 EPA-regulated facilities within 5 miles of Cheyenne, Wyoming. The most common kinds are water discharge (515), hazardous waste (269), air emissions (149). 5 are currently in significant noncompliance, the EPA's designation for the most serious or persistent violations, and 12 have a violation on record. Penalties over the last five years total $5.3M across 1 site.
By category
| Category | Facilities |
|---|---|
| Hazardous waste | 269 |
| Treatment, storage or disposal | 1 |
| Large quantity generators | 3 |
| Small quantity generators | 140 |
| Transporters | 4 |
| Chemical (RMP/TRI) | 19 |
| Superfund | 4 |
| Air emissions | 149 |
| Major sources | 3 |
| Synthetic minor sources | 3 |
| Minor sources | 30 |
| Water discharge | 515 |
| Major permits | 2 |
| Minor permits | 189 |
| Drinking water systems | 18 |
| Greenhouse gas reporters | 3 |
| Data centers | 14 |
| Scrap yards | 2 |
| Recycling centers | 1 |
A facility enrolled in several programs counts once in the total and once in each of its categories.
In significant noncompliance
The EPA's designation for its most serious or persistent violations, as of the latest data.
- LCCC STUDENT SERVICES CENTER Significant noncompliance
- CHEYENNE REGIONAL AIRPORT Significant noncompliance
- EVERGREEN MOBILE HOME PARK Significant noncompliance
- WYOMING GAME AND FISH (2021) Significant noncompliance
- CYS13 DATA CENTER Significant noncompliance
Largest penalties
Penalties assessed over the last five years.
- UNITED PARCEL SERVICE $5.3M in penalties
Superfund sites
- CHEYENNE PCE PLUME
- WYOMING ARMY NG MRS PGM
- U S AIR FORCE WYOMING AIR NATIONAL GUARD
- F.E. WARREN AIR FORCE BASE
Data centers
- 1547 GREEN HOUSE DATA CENTER
- CYS43 DATA CENTER
- Unnamed data center (OSM)
- Unnamed data center (OSM)
- Unnamed data center (OSM)
- CYS13 DATA CENTER Significant noncompliance
- CYS14 DATA CENTER
- Unnamed data center (OSM)
- MICROSOFT CHEYENNE DATA CENTER CYS17 - CYS22
- Unnamed data center (OSM)
County
Nearby towns
- Wellington, CO
- Fort Collins, CO
- Severance, CO
- Laramie
- Windsor, CO
- Greeley, CO
- Loveland, CO
- Evans, CO
Reading these numbers
These are regulatory records, not measurements of pollution. Most facilities appear because they hold a permit or file reports, and most of them are compliant; a listing is not a claim that a facility has polluted anything. Compliance status and penalties are the EPA's own determinations in data retrieved Oct 9, 2026. Distances are from the center of Cheyenne as the Census Bureau records it. The Data page explains where each record comes from and how it can mislead.