Collections and Lists

Fluid Column and Flow Borehole Methods

fluid column and flew borehole logging

Physical and Imaging Borehole Methods

borehole geophysics imaging and physical methods

Magnetic Susceptibility Borehole Logging

Borehole Magnetic Susceptibility

Borehole Vertical Seismic Profiling (VSP)

Borehole Vertical seismic profiling (VSP)

Lesson Plans, Teacher Guides and Online Environmental Resources for Educators: Waste and Recycling

Waste and recycling-related ducational resources for teachers on environmental topics, including lesson plans.

Lesson Plans, Teacher Guides and Online Environmental Resources for Educators: Health

Health-related educational resources for teachers on environmental topics, including lesson plans.

EPA encourages the public to review our Community Involvement Plan (pdf) (66pp, 6MB) that lays out our specific community involvement activities, and how to become involved at the Site. You can also contact our Community Involvement Coordinator, Mackenzie Meter ( meter.mackenzie@epa.gov), for site updates and to be added to the…

Last published: February 23, 2026

Other Site Contacts

Site cotnacts list that includes federal, state and community contact information for the Butte Area/Silver Bow Creek Site.

Montana Operating Permit Program Approval History

PSD Permit: Devon Energy - Riverton Dome Gas Plant

Final PSD permit and Statement of Basis for the Devon Energy (formerly Snyder Oil Corporation) Riverton Dome Gas Plant, located on the Wind River Indian Reservation, in Fremont County, Wyoming.

GHG PSD Permit: Cheyenne Light, Fuel & Power / Black Hills Power, Inc. – Cheyenne Prairie Generating Station

This page contains the final PSD permit for the Cheyenne Light, Fuel & Power / Black Hills Power, Inc. Cheyenne Prairie Generating Station, located in Laramie, Wyoming, and operated by Black Hills Service Company.

GHG PSD Permit: Solvay Soda Ash Joint Venture - Green River Soda Ash Plant

This page contains the final PSD permit for the Solvay Soda Ash Joint Venture Green River Soda Ash Plant located in Green River, Wyoming.

GHG PSD Permit: Sinclair Wyoming Refining Company

This pages contains documents for the Greenhouse Gas Prevention of Significant Deterioration Permit for the Sinclair Wyoming Refining Company, Sinclair Refinery, Permit Number: PSD-WY-000002-2011.001

Synthetic Minor NSR Permit: BioUrja New Town Terminal, LLC - New Town Transfer Facility

This page contains the revised synthetic minor NSR permit for the BioUrja New Town Terminal, LLC, New Town Transfer Facility, located on the Fort Berthold Indian Reservation in Mountrail County, ND.

Synthetic Minor NSR Permit: Arrow Pipeline, LLC - Stations 1-6

Synthetic minor NSR permit application, air quality modeling files and other supporting documentation for the proposed revision to the synthetic minor NSR permit for Arrow Pipeline, LLC - Stations 1-6, on Fort Berthold Indian Reservation.