Data / Environmental compliance / Wyoming / Big Island Mine & Refinery (sisecam Wyoming LLC)
Big Island Mine & Refinery, WY: $34,000 in penalties
Updated November 7, 2026. Source: US EPA, Enforcement and Compliance History Online (ECHO).
EPA's ECHO database records 4 inspections, 1 informal enforcement action and 4 formal enforcement actions at Big Island Mine & Refinery (sisecam Wyoming LLC), NE1/4 S15 T20n R109w, Sweetwater County, WY 82935, in the five years to November 1, 2026. Penalties total $34,000, the latest $26,000 on June 6, 2024. The facility was in significant noncompliance in 12 of the last 12 quarters.
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- Site
- NE1/4 S15 T20n R109w, Sweetwater County, WY 82935
- EPA registry ID (FRS)
- 110007900129
- Industry
- 212391 Nonmetallic Mineral Mining and Quarrying
- County
- Sweetwater
- Programs
- Clean Air Act
- Compliance status
- Significant Violation
- Inspections
- 4, latest May 6, 2026
- Formal actions
- 4, latest September 25, 2026
- Informal actions
- 1, latest June 21, 2023
- Penalties
- $34,000 in 2 penalties
- 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 | 4 | $34,000 | June 6, 2024 | $26,000 | 12 | 12 | Violation Addressed; State Has Lead Enforcement |
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.