Laserfiche WebLink
To: Am} Esehberger, DMRS <br /> Date: 12 22,?0'_'0 <br /> Pa`e 2 <br /> reclamation at any time. Thus, Bivens believes that their operations stabilizes the <br /> stockpiles, and, due to operation and sales,commit to stabilizing these piles by sloping and <br /> seeding with annual grasses as recommended in the site inspection report (DRMS, 2020) <br /> if no commercial activities occur for a year. <br /> Since taking over the permit in 2009,Bivens stabilized and revegetated the pond shorelines <br /> in accordance with the approved reclamation plan (Figure 2). The site inspection report <br /> describes the successful shoreline reclamation and revegetation: <br /> "During the inspection, the Division walked around the perimeter of the pond and <br /> observed its shorelines to be graded to 3H.-1 V or flatter and stable with good vegetative <br /> cover consisting of grasses and wetland vegetation (consisting primarily of cattails). <br /> Cobblestones have been placed along the pond slopes beneath the water line. Portions of <br /> the northwestern and eastern shorelines have been stabilized with boulders. Portions of <br /> the southern shoreline have been stabilized with cobblestones. No erosion problems were <br /> observed. "( (DRMS, 2020). <br /> Bivens requests acceptance of this Technical Revision 2 (TR-2)to the approved mine plan, <br /> reclamation plan, and TR-1 as described in the next two sections. <br /> Updated Mine Plan <br /> Bivens plans to continue mining the pit from Phase 1 (i.e., the existing pond) to the south <br /> and expanding the pond to its original mine plan surface area of 6.5 acres (Figure 3). The <br /> proposed mining to the south of the current pond is described as the Final Phase. <br /> During the Final Phase,Bivens will screen and crush mined material in the processing area. <br /> Bivens will incorporate aggregate/construction materials recycling into the mined material <br /> processing as approved by their Larimer County special use permit (Attachment 2). <br /> Bivens will continue to use the eastern edge of the permit area as the processing and storage <br /> area for additional mined material, concrete and asphalt rubble, fill dirt, sand and rock <br /> (Figure 3). The area will cover approximately, 1.7-acres within the permit area. A portion <br /> of the mined, crushed and/or recycled material will be sold and hauled off site. Bivens <br /> estimates no more than, 28,000 cy of imported materials will be stored on site at a time, <br /> per TR-1. Bivens may backfill a part or all of the Final Phase pit with inert fill material as <br /> allowed in the current permit,but at no time will the surface area of open water exceed 6.5 <br /> acres. <br /> Completion of mining the Final Phase will be congruous with construction material <br /> recycling operation until all material not needed for reclamation is sold and hauled off-site. <br /> At a minimum, Bivens will keep 1,050 cy of road base material onsite for reclamation of <br /> the 1.7 acres area. Stockpiled material, including concrete, asphalt, sand, fill dirt, topsoil, <br /> sand and rock will remain onsite and be considered as reclamation backfill material in the <br /> 20201222_Breens Pit_TR_Response Letter 2020 Final T E L E S T G <br />