Award
Montana DEQ-RFP2026-126005
Stillwater Mine Complex Amendment 014 Environmental Impact Statement
Recipient
ERO Resources Corporation
Awarded
January 14, 2026
Identifier
DEQ-RFP2026-126005
The State of Montana Department of Environmental Quality (DEQ) and Custer Gallatin National Forest (CGNF) are seeking a third-party contractor to prepare a joint environmental impact statement (EIS) analyzing the potential environmental impacts of the expansion of the Stillwater Mine, including construction and operation of waste rock storage and tailings facilities, in accordance with Montana Environmental Policy Act (MEPA) and the National Environmental Policy Act (NEPA). The contract involves environmental assessment services with no specified quantities or product details. The procurement process includes detailed procedural requirements, and the primary contact is Rebecca Gregg. The award is for a project located in Montana, USA, with the procurement portal available online. The award is categorized as a state-level contract, with the jurisdiction being Montana, and the country code is 'US'. The award was posted on November 14, 2025, with a response deadline of December 15, 2025. The likely competitors include HDR Engineering, Inc., and ERO Resources Corporation, with ERO Resources being the highest scoring offeror and the intended recipient of the contract.
Description
The State of Montana Department of Environmental Quality (DEQ) and Custer Gallatin National Forest (CGNF) are seeking a third-party contractor to prepare a joint environmental impact statement (EIS) analyzing the potential environmental impacts of the expansion of the Stillwater Mine to construct and operate the East Side Waste Rock Storage Facility and Hertzler Stage 4 and 5 Tailings Storage Facility Expansion Plan along with various other operational facilities to support the expansion in accordance with Montana Environmental Policy Act (MEPA) and the National Environmental Policy Act (NEPA).