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~~ - ~-°i ~ III IIIIII!IIIIIIIII <br />~~ ~~ L~ <br />Memorandum <br />To: Jim Pendleton ix Jim Burnell <br />From: Larry Routten <br />Date: 03/30/99 <br />Re: Roadside TR-29; C Seam mine Plans <br />Dan Mathews and I would like your assistance in reviewing a submittal from <br />Powderhorn Coal Company which proposes to move their mining operation into a <br />new seam of coal. (the C seam). This submittal only covers approximately 300 <br />acres so, we are handling it as a technical revision. If conditions turn out to be <br />favorable, the company may expand and continue mining in the C seam in the <br />future. <br />At this time, we need you to review their submittal for adequacy in regard to <br />subsidence projections and monitoring and, groundwater hydrology matters. In <br />addition to reviewing the plans presented in the revision application, you may also <br />need to ensure that any required baseline information is included in the permit prior <br />to approval of this revision. The proposed mining is within the present permit area; <br />however, there were never any plans for mining the C seam prior to now. <br />Dan would like to have cornmenls from your reviews by April /5 in order to get nn <br />adequacy Letter out on time. /have given each of you a copy of the text of the <br />revision application. Maps are sitting [text to t/te /N box on the table in my office, sn <br />each of you can access them. Please return all the application materials tome <br />whenever all our adequacy questions are addressed so /can get them filed in the <br />permit. <br />Thanks <br />Cc: Dan Mathews <br />