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• <br />Date: March 22, 1993 <br />To: Harry Ranney, Reclamation Specialist <br />From: Dan Hernandez, Senior Reclamation Specialist <br />Re: Permit Application Approval, Oakridge Energy, Inc. <br />The Carbon Junction Mine, File No. C-92-080 <br />• iiiiiiiiiiiiiiiiii <br />Harry, this is a memo following up on the conversation you, I and Steve Renner had last <br />week regarding the latest Carbon Junction permit application. As we discussed, the <br />Division cannot approve the new Oakridge Energy, Inc., application as long as the <br />applicant proposes to leave unreclaimed the "low wall" that will develop as mining in the <br />North Pit progresses. In this particular case, "unreclaimed" would be defined, at a <br />minimum, as not meeting the backfilling and grading requirements of Rule 4.14, <br />specifically Rules 4.14.1 (2)(a) and 4.14.2(11(b) that discuss elimination of highwalls, as <br />well as not meeting the revegetation requirements of Rule 4.15, specifically 4.1 5.1(1). <br />We discussed that the Carbon Junction "low wall," as described in the new application, <br />appeared to be dissimilar to a "highwall" as described in Rule 1.04(58). Rather than being <br />a typically vertical face of exposed horizontal coal and overburden strata, the Carbon <br />Junction low wall would be developed by the operator's systematic removal of coal and <br />waste rock from above a bed of sandstone that currently dips into the pit and underlies the <br />lowermost coal seam. The top of this sandstone would be the Lowest limit of excavation, <br />and would be left exposed as the final surficial layer. As it appeared that the Carbon <br />