Data / Environmental compliance / Wyoming / Dyno Nobel Inc-Cheyenne Plant
Dyno Nobel Inc-Cheyenne Plant: 4 formal enforcement actions
Updated November 7, 2026. Source: US EPA, Enforcement and Compliance History Online (ECHO).
EPA's ECHO database records 8 inspections, 1 informal enforcement action and 4 formal enforcement actions at Dyno Nobel Inc-Cheyenne Plant, 8305 Otto Rd, Cheyenne, WY 82001, in the five years to November 1, 2026. No penalty is recorded in that period. The facility was in significant noncompliance in 4 of the last 12 quarters.
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- Site
- 8305 Otto Rd, Cheyenne, WY 82001
- EPA registry ID (FRS)
- 110000468066
- Industry
- 32511 Petrochemical Manufacturing; 32512 Industrial Gas Manufacturing; 325188 Basic Chemical Manufacturing; 325311 Nitrogenous Fertilizer Manufacturing
- County
- Laramie
- Programs
- Clean Air Act, Clean Water Act, Hazardous waste (RCRA)
- Compliance status
- Significant Violation
- Inspections
- 8, latest July 1, 2026
- Formal actions
- 4, latest October 1, 2026
- Informal actions
- 1, latest May 29, 2026
- Penalties
- None recorded in five years
- ECHO facility report
- echo.epa.gov
By program
Inspections, enforcement actions and penalties of the last five years in each EPA program that covers the facility, as the program systems record them. Federal case penalties are listed under federal enforcement cases. Quarters count the last 12.
| Program | Inspections | Informal actions | Formal actions | Penalties | Latest penalty | Latest amount | Quarters with violations | Quarters in significant noncompliance | Status |
|---|---|---|---|---|---|---|---|---|---|
| Clean Air Act | 4 | 1 | 1 | $0 | $5,000 | 4 | 4 | Violation Addressed; State Has Lead Enforcement | |
| Clean Water Act | 3 | 0 | 0 | $0 | $0 | 0 | 0 | No Violation Identified | |
| Hazardous waste (RCRA) | 1 | 0 | 0 | $0 | $0 | 1 | 0 | No Violation Identified |
Federal enforcement cases
EPA cases that name this facility, newest first. The penalty is the whole case penalty, shared with the other facilities named in the case.
| Case | Case name | Status date | Type | Status | Outcome | Statutes | Case penalty | Facilities in case | Source |
|---|---|---|---|---|---|---|---|---|---|
| 08-2024-0069 | Dyno Nobel Inc-Cheyenne Plant | July 3, 2024 | Administrative, Formal | Closed | Final Order With Penalty | Clean Air Act | $394,906 | 9 | echo.epa.gov |
| 08-2023-0032 | Dyno Nobel Inc-Cheyenne Plant | January 4, 2023 | Administrative, Formal | Final Order Issued | Final Order No Penalty | Clean Air Act | $0 | 9 | echo.epa.gov |
| 08-2023-0004 | Dyno Nobel Inc-Cheyenne Plant | November 30, 2022 | Administrative, Formal | Closed | Final Order With Penalty | EPCRA | $20,352 | 9 | echo.epa.gov |
Also on SpecStream
Public domain (U.S. government work). Counts and penalties cover the five years to November 1, 2026 as ECHO publishes them in its exporter and case downloads, drawn from EPA's air, water, hazardous waste and drinking water systems and from the states that report to them. Records can be incomplete, late or corrected after this page was read. A federal case penalty that names several facilities is shown on each of them and counted once in industry, state and national totals. Each row links to EPA's own report. A quarter in significant noncompliance is EPA's term for a serious violation status in a program, not a finding of fault beyond that status. This page uses US EPA data and is not endorsed or certified by the US EPA. Free to reuse with credit to SpecStream under CC BY 4.0. Spot a wrong value? Write to [email protected] with the link to this page.