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8/13/2018 State.co.us Executive Branch Mail - Re: FW: TR -121 - Colowyo Mine Permit No. C-1981-019 <br />STATE OF DRMS_CoalAdmin - DNR, DNR <dnr drms_coal_admin@state.co.us> <br />r <br />COLORADO <br />Trujillo - DNR, Zach <zach.trujillo@state.co.us> Fri, Aug 10, 2018 at 10:33 AM <br />To: "Tennyson, Tony (Colowyo)" <ttennyson@tristategt.org> <br />Cc: DNR DRMS_CoalAdmin - DNR <dnr—drms—coal—admin@state.co.us> <br />Tony, <br />The Division will no longer include the surety reduction request for the Colowyo Mine, C-1981-019, in the review process <br />for TR -121 as requested. If you have any questions, feel free to contact me. <br />Sincerely, <br />On Fri, Aug 10, 2018 at 10:29 AM, Tennyson, Tony (Colowyo) <ttennyson@tristategt.org> wrote: <br />From: Tennyson, Tony (Colowyo) <br />Sent: Tuesday, June 26, 2018 3:07 PM <br />To: Zach Trujillo - DNR (zach.trujillo@state.co.us) <zach.trujillo@state.co.us> <br />Cc: Gilbreath, Chris <cg i I breath @tristategt. org > <br />Subject: TR -121 - Colowyo Mine Permit No. C-1981-019 <br />Zach, <br />Attached please find a revised public notice for TR -121 for your review, and a revised page from Exhibit 13C for TR - <br />121. Exhibit 13C, Table 13C-23 has been revised to reduce the Collom Pit Backfill requirements. With this reduction in <br />the volume of material necessary to backfill the Collom Pit, Tri-State on behalf of Colowyo is requesting a surety <br />reduction in accordance with Rule 3.02.2(5) under TR -121. Under the TR -121 application, Tri-State requests the <br />Division calculate the increase in the reclamation liability with the pit power distribution system as shown on the maps <br />in the application, and the reduction with this lower volume of material necessary to backfill the Collom Pit. <br />If you should have any questions please feel free to contact me at your convenience. <br />Tony Tennyson <br />Senior Environmental Engineer <br />Tri-State Generation and Transmission Association, Inc. <br />https://mail.google.com/mail/b/AELYnl EKnJi6uhnuu27U6BPxcLFZGeBszMOtnEcvLKLSk8wTMyLG/u/O/?ui=2&ik=deb7fOcd20&jsver=E_wtg3AOgDs.e... 1/2 <br />