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COLORADO <br />Division of Reclamation, <br />j&7 Mining and Safety <br />Department of Natural Resources <br />1313 Sherman Street, Room 215 <br />Denver, CO 80203 <br />Memo <br />Date: May 9, 2018 <br />To: Robin Reilly, DRMS <br />From: Tabetha Lynch, DRMS <br />RE: Trapper Mine, Inc.; C-1981-010: <br />Permit Revision No. 9 (PR9) Review Memo <br />I have conducted a review of PR9 for compliance with the rules listed below. Adequacy issues are <br />included as bulleted items within each section they pertain. Please let me know if you have any <br />questions. The revision proposes an increase in disturbed area by 564.0 acres and a modification to the 5 <br />year mine plan 2018-2022, this includes new disturbance expanding the current pit, referred to in this <br />revision as L pit. Expansion to the east has also been addressed in previous revision including PR7 and <br />PR8. The disturbance in N pit is redisturbance of previously mined areas to acquire a deeper seam. <br />Rule: 2.04.5(1)-(3) — General Description of Hydrology and Geology <br />See below for Geologic and Hydrologic specific sections <br />Rule: 2.04.6(1)-(2) — Geology Description <br />• It does not appear that all permit stipulation have been complied with for mining of the eastern <br />expansion area. Stipulations 21 and 22 are still listed as Future status and it does not appear that <br />all aspects of these stipulation have been provided. <br />As part of Stipulation 22, in relation to the geology in the eastern expansion area: <br />(c) A geology description that updates Sections 2.7.2 and 2.7.3 of the Trapper Mine permit <br />application package with the information required by Rule 2.04.6(2)(a) and (b). <br />Within the PR8 review, it was stated that: <br />"Trapper is not requesting to mine the PR -7 area with this revision. The operator states <br />that additional geologic information will be provided as a revision at the time the mining <br />plan is submitted. <br />A study of overburden characteristic has been conducted, and a new section added for <br />the Overburden Geochemistry of the PR -7 Expansion Area. Corehole data is provided <br />and map included. " <br />flF'C-0 <br />H <br />1313 Sherman Street, Room 215, Denver, CO 80203 P 303.866.3567 F 303.832.8106 http://mining.state.co.us I <br />John W. Hickenlooper, Governor I Robert Randall, Executive Director I Virginia Brannon, Director * r 1876 4 <br />