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Public Notice: Thunder Basin Coal Company, Blasting Notice for Coal Creek Mine, PT0483

*PUBLIC NOTICE OF BLASTING*

*STATE OF WYOMING*

*COUNTY OF CAMPBELL*

Blasting will be conducted at Thunder Basin Coal Company’s Coal Creek Mine; P.O. Box 406, Wright, Wyoming 82732, (307) 464-2700.  Blasting will be conducted on a daily basis.  From January 1, 2026 through December 31, 2026, blasting will be located in the East 1/2 of Section 32, in the West half of Sections 22, 27, and 34, and in all of Sections 16, 17, 21, 28, and 33 of T46N R70W and in the Northeast 1/4 of Section 5 and in the Northwest 1/ 4 of Section 4 of T45N R70W.  Blasting will occur between sunrise and sunset.  

Access to the blasting area will be marked with signs stating “Danger, Blasting Keep Away”.  Blasting areas containing loaded holes will be posted and unauthorized access restricted by blasting and security personnel.  Audible warning of blasting activity will be given by sirens, which can be heard for a distance of at least one-half mile.  The first warning will be a one-minute wail siren sound to indicate blast detonation in ten minutes.  A one-minute yelp siren sound will indicate blast detonation in one minute and will continue until blast detonation.  An all clear, fifteen second wail siren will be sounded after the blast has been detonated and checked for complete explosion.

In unusual situations, it may be necessary to detonate blasts at times other than those specified.  This emergency blasting will be done when weather or other conditions present some hazard to normal blasting procedures, when necessary to maintain safe operating conditions, or when necessary for public safety.

Residents or owners of manmade dwellings or structures located within 1/2 mile of the permit term disturbance limit may request a pre-blasting survey by submitting a written request to Thunder Basin Coal Company at the above address or to the Department of Environmental Quality, Land Quality Division, 2100 West 5th Street, Sheridan, Wyoming 82801.

*Thunder Basin Coal Company, LLC*

*Coal Creek Mine*


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