Environmental Assessments

By Subject or Program:
Air Quality Permits/EAs
Coal & Uranium Mining
Search Opencut Permits
Hard Rock Mining Permits
Septic Tank Pumpers
Underground Storage Tanks
Waste Management (Hazardous Waste, Junk Vehicle Facilities, Solid Waste Facilities)
Water Quality Discharge Permits

The EAs listed in the links above are not included in the list below.
If no current documents are listed below, please use the links above to look at specific categories of EAs.
Environment Assessment Business Process Flowchart
DEQ Montana Environmental Policy Act (MEPA) Procedural Rule and Guidelines


 


Project Name

DEQ Determination

Issue Date
Removal or Response Date
Department Contact
Notice of Publication of Categorical Exclusion for Ronan Surface Water Filtration Expansion Project (DWSRF) CATEX September 14, 2017 October 30, 2017

Rob Ashton

Montana Department of Environmental Quality
PO Box 200901
Helena, MT 59620-0901
Phone: (406) 444-5316

Finding of No Significant Impact for the City of Big Timber Water Treatment Plant Project (DWSRF) FONSI September 11, 2017 October 25, 2017

Marc Golz

Montana Department of Environmental Quality
PO Box 200901
Helena, MT 59620-0901
Phone: (406) 444-6770

Notice of Publication of Categorical Exclusion for Plentywood Wastewater Collection System Improvements Phase 1 (WPCSRF) CATEX August 18, 2017 October 2, 2017

Mike Abrahamson

Montana Department of Environmental Quality
PO Box 200901
Helena, MT 59620-0901
Phone: (406) 444-6776

Final Environmental Assessment - Lucky Minerals Emigrant Exploration Project Environmental Assessment July 26, 2017 None Dan Walsh
Montana Department of Environmental Quality
PO Box 200901
Helena, MT 59620-0901
Phone: (406) 444-6791

Final Environmental Assessment - Black Butte Copper Exploration Project


Frequently Asked Questions About The Black Butte Copper Project

Mitigated Environmental Assessment January 14, 2014 None

Herb Rolfes
Montana Department of Environmental Quality
PO Box 200901
Helena, MT 59620-0901
Phone: (406)444-3841

Tintina Alaska Exploration, Black Butte Project Draft EA July 15, 2013 August 26, 2013

Herb Rolfes
Montana Department of Environmental Quality
PO Box 200901
Helena, MT 59620-0901
Phone: (406)444-3841