2022-04-08_PERMIT FILE - C1981044

• Permit No: C1981044
• IBM Index Class Name: Permit File
• Doc Date: 4/8/2022
• Section_Exhibit Name: 2.03 Legal, Financial, Compliance and Related Information
• Media Type: D
• Archive: No

Air Photo Surveys
Grand Junction, Colorado
Jack Spann
Work Performed: Aerial Photography
Date Performed: December 1980
Date Analyzed: January 1981
Methodology: Flew mine area and generated updated topo maps.
E & C En ineering
Craig, Colorado
Peter Epp
Work Performed: Surveying
Date Performed: December 1980
Date Analyzed: January 1981
Methodology: Surveyed and placed targets for aerial topo work.
Mine Subsidence Engineering Compga
Golden & Grand Junction, Colorado
Collin Stewart
Work Performed: Subsidence Engineering
Date Performed: 1985 & 1986
Date Analyzed: 1986
Methodology: Completed evaluations of maximum subsidence and responded to subsidence criteria in
the regulations.
Bookcliffs Laboratory, Inc.
Steamboat Springs, Colorado
Ralph Paulson
Work Performed: Water Analysis
Date Performed: 1986
Date Analyzed: 1986
Methodology: Used ASTM standards to analyze water samples.
Enviro -Test, Limited
Denver, Colorado
Sam Geer
Work Performed: Water Quality Analysis
Date Performed: 1980
Date Analyzed: 1980 through 1995
Methodology: Used ASTM standards to analyze water samples from monthly and quarterly monitoring at
the mine.
Amuedo and Ivey
Denver, Colorado
John Ivey
Work Performed: Surface and Base Geology
Date Performed: September 1979
Date Analyzed: September and October 1979
Methodology: Use aerial photography and field reconnaissance to develop surface and subsurface geology
for baseline information.
TR14 -36 2.03 -4 Revised 07/15/13