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T-Bone Stone 2008-09 Annual Report Map <br />(showing requested adjustment of TBS 2 boundary to adjust for road relocation <br />in 2008 quarry operations) <br />610' f <br />- <br />New road segment .,.' 711 <br />- Existing Road 400' - <br /> <br />irst 12 inches of soil consists of very stony loamy ` ` <br />The f <br />- - , <br />fine sand ( see Exhibit B ). Because this material is <br />primarily rock and sand, it does not support significant <br />vegetation. The intended future use for the area is <br />rangeland, which will be reestablished by revegetating X <br />with a mix of native grasses in a manner and amount <br />y <br />specified by Boulder County in its Limited Impact <br />Special Review process, and by reestablishing native i <br />Ponderosa Pine @ ten trees per acre and Rocky ? <br />Mountain Juniper shrubs @ five per acre. <br />5.0 <br />? <br />acres <br />L_?-r <br />:Processing TBS 1 Q <br />Area never <br />developed - now <br />transferred to TBS 2 <br />trn9 Road <br />acid <br />Total 110 permit <br />area: 9.9 acres <br /> <br /> <br />M TBS 2 1 <br />4.9 <br />l - acres <br />1 <br />'QD <br />\ d4, <br />j/ <br />596, <br />i <br />r <br />N -? <br />¦¦¦¦¦¦¦¦¦ Area quarried in 2007-08 <br />Areas of future <br />r' excavation & benches <br />Approximate align- <br />' ` ment for benches <br />% Storage of rock waste <br />and overburden <br />Replacement of overburden will be <br />conducted on an ongoing basis, where <br />practicable, as part of normal quarry <br />operations. Estimated depths will vary <br />between 1ft and 15 ft. In order to <br />maintain the desired 3:1 slope upon <br />final reclamation. <br />The slope of the proposed site currently <br />ranges from 5% to 55% ( Non-Technical <br />Soil Description, Exhibit B ). Gradient <br />used for reclaimed slopes will be 3:1 <br />were the original slopes support it. <br />Gradients of greater than 3:1 will be <br />used only in areas where the original <br />slopes are in excess of 3:1, never to <br />exceed the original slope maximum <br />gradient of 55%. The intent is to return <br />the slopes to their approximate original <br />gradient, and leave no more than 100 <br />linear feet of rock benches 5-8' high only <br />where they may be necessary and <br />appropriate to promote slope <br />stabilization and enhance safe passage <br />for wildlife traveling through the <br />reclaimed quarry area in the future. <br />