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• <br />DEPARTMENT OF NATURAL RESOURCES <br />D. Monte ~escoe, Executive Director <br />MIlVED LAND RECLAMATION <br />423 Centennial Building,1313 Sherman Street <br />Denver, Colorado 80203 Tel. (303) 866-3567 <br />nn~ 1~ 1r <br />D ~~:~41~~~r.~ <br />mn~t o ~~ 198Z ,~~ <br />David C. Shelton <br />Director <br />May 5, 1982 <br />• <br />Mr. Tom Wainwright <br />Seneca Coals, Ltd. <br />Campus 6 Office, Suite 600 <br />12015 E. 96th Avenue <br />Denver, Colorado 80239 <br />Re: Technical Revision, Permit No. C-005-80 <br />Dear Mr. Wainwright: <br />The Technical Revision submitted by Seneca Coals, Ltd. on April 19, 1982 <br />has been reviewed by the Division. This proposed revision alters the mining <br />sequence in the Wedge coal seam, and requests relocation of the wedge boxcut <br />northeast of the previous Zocation. In the original plan, the Wedge area <br />would have been temporarily (9 years) reclaimed while mining operations <br />shifted to development of a new tease area. Since then, Seneca Coals, Ltd. <br />has been relieved of the due diligence requirements and requests approv,el <br />to continuously mine the Wedge coal seam without interruption. With this <br />change in mine plan, the need to temporarily reclaim approximately 7000 feet <br />of pit which would have been inactive for nine years is eliminated. <br />Revisions in the permit resultant from this proposal are found in the <br />hydrology section (Tab 7), operation plan (Tab 12) and the reclamation plan <br />(Tab 13). Concerns regarding the revision and these sections were discussed <br />in a meeting on March 25, 1982 and have been adequately addressed. AIZ run- <br />off will pass through the existing sediment pond 004. Ground water quality <br />impacts will be negligible. <br />The operation plan is adequate. AZI new road segment designs and specifications <br />are in compliance. These are roads AI, E1, EIa, E9, E4a, ES and DZa. The <br />life of the mine will be shortened by five years since mining will be <br />continuous in the [Jadge area. <br />Mining will progress southwest from the boxcut as shown on Exhibit 12-1, <br />necessitating temporary reclamation of the boxcut for about 5 years. The <br />temporary reclamation plan described in Tab I3 is adequate. <br />STATE OF COLORA00 g1~HARD D. L4MM. Gov r.~nm <br />r1 <br />f`J <br />