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nA- - <br /> 1 MI MM Mr. TRAPPER MININD INCE <br /> P.O.Box 187 Craig,Colorado 81626 (970) 24-4401 <br /> July 3, 2019 <br /> Nis. Tobin Ieilley <br /> nviron nental Protection Specialist <br /> Colorado Division of Reclamation, Mining and Safety <br /> 1313 Sherman Street, Room 215 <br /> Denver, CO 80203 <br /> vv.t.w,rH..vNn�¢MM.._:YM.�n�nry�_*_�vvv.v.vYv.wvt.x.,,..:.#v <br /> .. :.5, € a <br /> k <br /> :.: <br /> ...>.:,...;:..k::.x... .�...J4:'J4��5;:. ...> ..�.x ..#:>�. .kZ[..4981 <br /> kt��,>��,: �:x <br /> y.. .� ..SS vvkxxx Y✓<i. '�'�'%k kkisk a s.x«^c<a<a.n+'cvc.ir::sx:.k.kkk,•L.kv.::.,>;a.sf:a:':;:<:::<::.:.k>:z}.i:::rf:..x:r:� <br /> ..�' r "�i�w •�;. �`Y{.�.: <br /> >SS .�... ''.: <br /> s.,�;. :.�,, o-.w c' :r•. M1*.t ' �<i�::..*...��:,?�k <br /> r;%:>.itKvi.in57{;,v'S:ikxvz.},c+&' �rGt+.r,v.,UN.#kvivW+.k�i:x,.xK.x,:s<>wifn4;:rv.xx,r:tu�.r,c:.z.,x,wu..v:xx,s.:rv.vMrns.,nr„xkW,w.s;rd+w.<SSmkn}:c..v;+,rrn y,!rvrGxr;Jtwiriic.ckfrx:: <br /> Dear Ms. Iellley; <br /> Please find enclosed duplicate copies of Technical Revision T .-123. This revision is intended to <br /> update the 2019 mining and reclamation plan as needed to facilitate topsoil stripping in the N-Pit <br /> area. As discussed with r RMS personnel, since the submittal of Permit Revision No. P 9 <br /> Trapper has evaluated a strife lire orientation for N--Pit. This change has altered the pit outline as <br /> submitted in PR9. In order to make use of the 2019 field season, topsoil strip limits that will <br /> better encompass this pit orientation must be proposed. A. forthcoming revision to the P .9 <br /> application package will detail this new pit orientation and operation plans for the mining and <br /> reclamation plan update for the 2018-2022 permit terra. Included with this application are updates <br /> to one page of permit text, along with several revised maps. <br /> The following revised permit narrative page 1s enclosed; Table . - (Pg. --177 . The following <br /> revised maps are enclosed: M9 (sheet 2), Ni1O (sheet 2) and M 1 (sheet 2). A. SedCad run <br /> detailing the Grouse Diversion to Fast Pyeatt ditch is also included to be inserted in A.pp Q, <br /> Section.XVII Temporary Diversion Ditch Design. <br /> Proposed stripping in this Technical Revision details the re--orientation of 160 acres of re- <br /> disturbance of Phase III reclamation in the N-Pit area previously permitted in TR-1 19. <br /> Neap M9 — I aulroads Map — will show a proposed new road to access N Pit and replace the <br /> L.O.M. Road. Map M10B is reprised to include 2019 proposed topsoil removal areas. You will <br /> note that regraded reclaimed areas are juxtaposed over the top of M-10 maps that are current for <br /> P -7, as modified for T --11 , and overlap projected regr de recta .ation for previous years. The <br /> M-1 o maps will be updated once again with the upcoming submittal of the PIS-9 revision. <br /> The enclosed SedCad model for the Grouse Diversion East Pyeatt details the design for a <br /> diversion ditch in the Crouse Gulch watershed to prevent mining related runoff from reaching the <br /> Crouse pond system.. This outfall is presently permitted for stonnwater runoff from reclaimed <br /> lauds and haulroads. Table .8-3 has been updated with the design infonnation of this ditch and <br /> is enclosed. <br /> Analysis provided in the first adequacy response to PIS-9 dated September 5, 2018 demonstrated <br /> the East Pyeatt pond system was capable of handling the proposed runoff from stripping areas <br />