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• 2.05 APPLIQ-TIDi~I FCII2 PERNII'P a~oat SQnk'!~ Oat ID ~~ ACTIVITIES - <br />1~~1 ItF]QiTII~+]QTtB E~ OPF~tATI~i A1~ID RBCGAI+ATI@i PiAI~B. <br />2.05.4 Reclamntiaa Plan. <br />(2) (d) (Cont'd.) <br />The brown sandstone and gray sandstone materials excavated fxYmt the rock <br />slope portals and entries would be utilized as Dover over less suitable <br />materials. OOVOC conservatively estimates that at least 30 percent of the <br />fill surface would be soil size particles and the remairrler would be <br />ooarc„e fragments less than 24-inches in rliamater. The Division has agreed <br />to allow QOVOC to pursue revegetation of the fill outslopes without the <br />addition of imported soils. OWOC would monitor the success of <br />revegetation and erosion cnnttvl over a 2-year period. <br />In accordance with Idrle 4.14.6(1), if any rillisg or gullying deeper than <br />9 inches occurs during the first growing season, the rills and gullies <br />would be filled, graded, seeded and mulched. If, after the second gracing <br />season, revegetation and erosion control are not successful, i.e. rills <br />and gullies 9 inches or deeper have formed and no vegetation has become <br />established, CX7VOC would add an average of 6 inches of soil Dover to the <br />fill outslc~pes arri reseed, fertilize, aryl mulch. <br />• Soils may be obtained fmn a stocl~ile at the Steven's Gulch wellfield, <br />from excess soils excavated at the West or Fast Ridge Waste Rock Disposal <br />Areas, or piirrhac~ frran an outside source. Suitability analyses of the <br />soils utilized would be subtaitted for the Division's approval. The slopes <br />would be hydromulrhed or would be straw mulched at a rate of 2 tons per <br />acre and tackified or covered with erosion control netting. <br />CWCC would increase the reclamation bond to cover the cost of applying <br />additional soils and revegetating the fill slopes should the 2-year trial <br />period prove unsuccessful. <br />Less than half an acre would be distributed by the ventilation shaft and <br />fan construction located north of the OVLd+I water tank. Only the minimum <br />area for the constrvction, aryl ooag~liance with MSF1A >~,~ ations, would be <br />cleared of Vegetation. The site is located on the northern perimeter of <br />the area previously disturbed by the bn>rstr crushing habitat improvement <br />treatment and would require little additional clearing. &~sed on the OVWM <br />soils analyses (Soils Appendix, Volume 9), approximately 32 inches of this <br />Delson soil world be salvaged from the <br />Revised 08/02/90 <br />63 <br />• <br />