Montana Department of Environmental Quality About Us Permitting & Operator Assistance Public Participation

Water Quality | Final Environmental Assessment | Blackfoot Crossing Wastewater Treatment Facility

  • April 09 2026

Under the Montana Environmental Policy Act (MEPA), Montana agencies are required to prepare an environmental review for state actions that may have an impact on the human environment. The Proposed Action is considered to be a state action that may have an impact on the human environment and, therefore, the Department of Environmental Quality (DEQ) must prepare an environmental review. 

DEQ determined that a public comment period of 30 days was appropriate for this proposed action, and collected comment from January 30, 2026 to March 1, 2026. DEQ received a single comment letter in response to the draft EA, summarized in the comment response summary and included as a separate attachment to this final EA.

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Tags: MEPA, Water and Public Notice