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Environmental Assessments

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Air Quality Permits/EAs
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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

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Project Name

DEQ
Determination

Issue Date
Removal or Response Date
Department Contact

Notice of Publication of Supplemental Finding of No Significant Impact and Environmental Assessment for Ten Mile Creek Estates/Pleasant Valley County Sewer District(WPCSRF)

Notice of Publication of Supplemental Finding of No Significant Impact and Environmental Assessment July 2, 2015 August 17, 2015

Jerry Paddock
Montana Department of Environmental Quality
PO Box 200901
Helena, MT 59620-0901
Phone: (406)444-5323

Finding of No Significant Impact for Dry Prairie Rural Water Authority Valley County Area B Pipeline Project(DWSRF)

Finding of No Significant Impact June 30, 2015 August 14, 2015

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 Carter-Choteau County Water & Sewer District, Water System Pump House 3 Improvements Project 2015(DWSRF)

Notice of Publication of Categorical Exclusion June 26, 2015 August 10, 2015

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

Notice of Publication of Categorical Exclusion for City of Missoula Biosolids Dewatering Project 2015(WPCSRF)

Notice of Publication of Categorical Exclusion June 24, 2015 August 7, 2015

Paul LaVigne
Montana Department of Environmental Quality
PO Box 200901
Helena, MT 59620-0901
Phone: (406)444-5321

Notice of Finding of No Significant Impact and Environmental Assessment for the Great Falls 18th Ave South and Middle Basin Storm System Improvements Project (WPCSRF)

Finding of No Significant Impact and Environmental Assessment June 22, 2015 August 10, 2015

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

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