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<br /> <br />within one working week after completion of each excavation. " <br />Finally, because the Terracon report concludes that the transfer station excavation has the <br />lowest slope safety factor of the three areas examined, and, because there are surface <br />water drainage channels located upgradient and to the east of the excavation, the Division <br />would like BRL to add a condition to the permit revision, either as a commitment added <br />to the text of the permit application or as a stipulation attached to the approval of PR-03. <br />This condition would be as follows: <br />"BRL is to provide designs and implement construction jor the drainage <br />channels immediately above and to the east of the proposed tz•nnsfer <br />strztcture excavation, as shown on proposed Map No. I S-2, [ha[ would <br />prevent infrltration from those ditches, causing deterioration of the cut <br />slope. " <br />3. BRL proposes to create a planar coal stockpile pad to accommodate 30.000 tons of coal <br />storage immediately above Old State Highway 133. This excavation will result in the <br />creation of an approximately 500 foot long, pie-wedge shaped, steepened cut slope from <br />0'to 50' in height. This cut slope is immediately above the proposed storage pad and <br />immediately below the haul road. In addition, a fill area bordering Old Highway 133 is <br />also planned. BRL should provide a complete stability analysis report jor the cut slope <br />and the fill slope to demonstrate that they will be stable during operation and following <br />reclamation. <br />The Terracon geotechnical stability report included geotechnical stability designs for the <br />coal stockpile pad cut slope and fill slope. The Division has reviewed these designs and <br />found that the designs demonstrate that the cut and fill slopes associated with the <br />proposed coal stockpile pad will be geotechnically stable during operation and afer <br />reclamation. However, the condition stated in item number 2 above, concerning the <br />engineer's evaluations, would apply to the coal stockpile pad cut slope and fill as well. <br />4. In order to accommodate the coal storage pad, BRL proposes to relocate Pond B to a <br />location on the down slope side of Old State Highway 133. It appears [hat the up slope <br />portion will be excava[ed while the down slope earthen embankment will be super <br />elevated above the existing topography. BRL should provide a complete stability analysis <br />repor[ for both the cut slope and embankment to demonstrate that they will remain stable <br />during operation and following reclamation. Test pits may be required to verify that <br />similar materials hove previously been collected for mechanical analysis in the <br />laboratory. <br />BRL submitted the Terracon geotechnical stability report in order to answer this question. <br />The Division has reviewed this report. In the Terracon report, it is stated that "As <br />previously discussed, geotechnical exploration has not apparently been completed at the <br />