WMRD AML|Environmental Assessment|Grosgarth Grout Injection Project|Comment Period Ends July 25, 2026
The Montana Department of Environmental Quality (DEQ), Abandoned Mine Lands (AML) Program, proposes to conduct a phased grout-injection project near an occupied rural residence in the Grosgarth Mine area south of Rose Hill Road near Medicine Lake, Sheridan County, Montana. DEQ proposes to implement a full grout-injection remediation project to stabilize mine-related voids and low-density zones beneath and adjacent to the residence using drilling and grout injection, with associated limited excavation, landscape repair, and drain field area work as needed to carry out and restore the project.
Draft Environmental Assessment Grosgarth Grout Injection Project
Public Comment Period Ends: July 25, 2026 at 5:00 pm
Send/Submit Comments To:
Contact
DEQ
P.O. Box 200901
Attn: John Babcock
Helena, MT 59620-0901
(406) 444-6473
The department will make reasonable accommodations for persons with disabilities who wish to participate in this public participation process or need an alternative accessible format of this notice. If you require an accommodation, contact the department no later than 5:00 P.M. on July 10, 2026, to advise us of the nature of the accommodation that you need. Please contact the Department of Environmental Quality at P.O. Box 200901, Helena, Montana 59620-0901; phone (406) 444-6473 or e-mail: DEQMontanaAML@mt.gov
Tags: Cleanup, MEPA and Pubic Comment