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SECTION II - Summary of Operations, Revisions to Permit, Violations, Stipulations, <br /> Variances, and Bond <br /> Operations <br /> Table 2 summarizes the history of Permit C-1981-010,prior to the most recent renewal, RN- <br /> 07. <br /> Table 2 —Summary of history of Permit C-1981-010 <br /> Date Action <br /> 1954 - 1958 State, county, and federal coal leases issued for the future Trapper Mine <br /> site <br /> 1972 Utah International, original operator of Trapper Mine, begins <br /> environmental studies of the site <br /> 1976 Colorado Mined Land Reclamation Division issues mining permit C-76- <br /> 11 to Utah International <br /> 1977 Mining operations begin on the site <br /> 1982 Permit C-81-010 issued, replacing C-76-11 <br /> April 1983 Utah International transfers Trapper Mine to its then wholly-owned <br /> subsidia , Trapper Mining Inc. <br /> July 1983 Utah International sells Trapper Mining Inc. to corporate consortium that <br /> owns Craig power plant <br /> 1987 Permit Revision PR-01 approved (changes in permit boundary, topsoil <br /> stripping, overburden blasting, and pit pumpage in Colt and Browning <br /> pits) <br /> 1988 Permit Renewal RN-01/Permit Revision PR-02 approved(changes in pit <br /> advancements, new pits, environmental baseline data, sediment/erosion <br /> control, operations description, etc.) <br /> 1993 Permit Renewal RN-02/Permit Revision PR-03 approved(new pits and <br /> advancement of existing pits) <br /> 1998 Permit Renewal RN-03/Permit Revision PR-04 approved(advancement <br /> of pits, new pits, update of information in permit application) <br /> 1998 Phase I and 11 bond release request, SL-01, approved for 2511.7 acres <br /> Phase I, 1548.0 acres Phase lI <br /> 1999 Phase II bond release request, SL-02, approved for 319.5 acres <br /> 2000 Five pits are open on the Trapper Mine; of these, three are being actively <br /> mined (D, F, and A-South pits), one is being backfilled with ash from the <br /> Craig power plant(Ash pit), and one is temporarily abandoned(E pit). <br /> 2002 Phase 11 bond release request, SL-03, approved for 592.7 acres <br /> 2003 Renewal RN-04/Permit Revision-05 approved(advancement of pits, re- <br /> orientation of Pits G and Z. Revised post-mining topography) <br /> 2003 Phase III bond release request, SL-04, approved for 1857.7 acres on the <br /> west side of the permit area. <br /> 2004 Phase I bond release request, SL-05, approved for 823.9 acres <br /> MT8_Trapper Midteim 2020 Findings JLE.docx Page 3 <br />