Treasure State Stone Quarry EPA PTE Calculation
Summary
EPA Region 8 posted a Prevention of Significant Deterioration (PSD) permit calculation for Treasure State Stone Quarry. The document provides the EPA's PTE (Portable Temporary Equipment) calculation methodology and results for the proposed quarry operation in Montana. No specific compliance deadline or enforcement action is indicated in the posted document.
What changed
EPA Region 8 has posted the PTE calculation document for Treasure State Stone Quarry as part of the agency's review of the quarry's air quality permit application. The document provides the technical methodology used to calculate potential to emit emissions for the quarry operation. As a posted technical document, it does not impose new compliance obligations on other regulated entities. Affected parties with operations in Montana should monitor the regulations.gov docket for any related permit determinations.
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Apr 20, 2026GovPing captured this document from the original source. If the source has since changed or been removed, this is the text as it existed at that time.
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