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III IIIIIIIIIIIIIIII <br />999 <br />E~~A <br />s Coa,Company Seneca Coal Company <br />June 7, 2000 <br />Ms. Sandra L. Brown RECEIVED <br />Division of Mmerak and Geology JUN 0 <br />1313 Sherman Street, Room 215 $ ?QQQ <br />Denver, CO 80203-2273 <br />Division of Minerals 8 Geplogy <br />(303) 866-3567 <br />RE: SENECA II-W SOUTH - TR-35, PRELIMINARY ADEQUACY REVIE W <br />RESPONSES <br />Deaz Ms. Brown, <br />Enclosed you will find three (3) copies of revised and/or additional information addressing the <br />adequacy comments in your May 18, 2000 letter with regard [o Technical Revision 35 to the <br />Seneca II-W Mme Permit G82-057. Responses to each of the May 18th comments are provided <br />below and are numbered accordingly. <br />Soils and Vegetation -Tabs 9 and f0 <br />Coirrrra 1 - Reasal Exhdu 9-3 and Exhibit 10-3 do rot shorn aU dx °~ area P~6lY sla~rm. 71x <br />davrrhme assaiatei villa Haul Rmd H, 7R-33 and arrxlxr smell a~ on tlx eat side hire l~ rerroral <br />Pleae irdrde aU affaYal area an dace Exlad>Jh. <br />Response - SCC has revised Exhibits 9-3 and 10-3 to show what is currently approved for <br />disturbance and what we are proposing to disturb for this revision. The disturbance area <br />associated with Haul Road H u depicted on Exhibit 20-1, which was approved on 08/14/98 <br />in Technical Revision No. 31. SOC has shown the disturbance area limits in the II-W South <br />e:nension area on Exhibits 9-3 and 10-3 as an additional aid for both SCC and the Division. If <br />you look at Exhibiu 9-1 and 10-1 for the remainder of the permit area the disturbance limits <br />are not delineated. <br />Facilities -Tab 13 <br />Cmnerct 2 - A przptaet dxa~r gF64. D aas tf remdaturGvir a late; m daeappJrauro:~Omtfor daa relator, <br />Eorrern; tetanal Take 5 in A aadanat 13• SB vdiaus rrcreael t~stra&vvze gF 19 ants 8 to Pod 015, <br />an rrueae gF77.7 aoa rtpovag to Porn 016, arrl art imaue cf 22.8 acts repat»g to Pod 017. 71aa <br />mfnsam~ an adt6titnrl 119. S cltstrolxrl aas in dx 11-W Sauh Exmaiai vtuersh~ area. Pleae darify dais <br />and proride an explmutim for dx 119.5 ens gf'remdisnotmre prgerrad an Take 5 as gbposa~ to dxprtptaei <br />64.0 ans. A&o Pleae dmify ar pratide a descrrptrar gFarry rem prtpaai disturtel at>~ge rn dx Pod 006 <br />rraurshaiarex <br />Response -The increase in disturbance area in revised Table 5, Sedimentation Pond <br />Surmttary, in Attachment 13-SB was due to an oversight in calculating the disturbed acres for <br />rue in the SEDCAD modek in the original Permit Revision No. 02 (PR-02) submittal The <br />disturbance area accounted for in the original designs reflected only the actual pit boundary <br />rather than the larger disturbance boundary. With the additional disturbance azsociated with <br />TR 35, we have now accounted for all proposed disturbances. <br />Seneca Coal Company • P.O. Drawer D • Hayden, Colorado 61639 <br />Telephone (970) 276-3707 • FAX (970) 276-3014 <br />r~sn,,,,nu,~nt„rtp <br />N20 J• <br />