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' V. E~CHIBIT D -MINING PLAN <br />' The revised East 3"' Street Operation site now consists of approximately 69.89 acres of ca¢le <br />feedlot alone [he Cache La Poudre River in the city of Greeley, Colorado. The wesrern <br />' portion of the property lies within the I00-yr tloodplain of the Cache La Poudre River. <br />Surface mining of alluvial sand and ;ravel is proposed for the entire site area with normal <br />setbacks and with a minimum 150 ft wide trail corridor to be established along the Cache La <br />' Poudre River. The proposed mining plan consists of zither relocating the existing Ogilvy <br />Ditch to the eastern boundary of the property or leaving the ditch in-place. <br />' Mining will be done using dry mining techniques for the upper 30 ft of material and wet <br />' mining techniques from 30 to 60+ tt. The purpose of this Exhibit D is to describe the <br />proposed mining plan for the operation. The accompanying Figures D-l and D-2, Ivlining <br />Plan(s), portray the elements of the~roposed mining operation as described in this narrative <br />' in regards to relocating Ogilvy Ditch or leaving the ditch in-place. <br />' Concurrent with the submittal of this Regular (11''1 Permit amendment application to DMG, <br /> CAMAS is also submitting an application for a Use by Special Review Permit for sand and <br /> gravel mining to the City of Greeley. <br /> For both possible mining conditions. CAbIAS is proposing to mine the property in four <br />' phases. If the Ogilvy Ditch remains in place, the phases will be comprised of approximately <br /> tive to nineteen acres eac!t, as shown on Figure D-l (Mining Plan -Ogilvy Ditch in-place). <br /> If the Ditch is relocated to the eastern boundary of the property, the four phases will consist <br /> of approximately five to twenty acres each, as shown in Figure D-2 (Mining Plan -Ogilvy <br /> Ditch Relocation). [f [he Ditch remains in-place. Phase 1 will consist of approximately 5 <br />' acres a[ [he southwestern limits of the mined properly. Phase 2 will extend mining [o the east <br /> and encompasses approximately 19 acres. Phase 3 is composed of the approximately 17.4 <br />' acres east of the existing Ogilvy Ditch. Phase 4 would consist of mining the 8 acres of the <br /> proposed CAMAS plant. If [he Ditch is relocated to the eastern boundary of [he property, <br /> mining acreaee for Phases 1 and 4 will remain the same, but Phase ?will consist of <br /> appro.ximarely 19.6 acres east of the plan[ and Phase 3 will contain [he remaining <br /> approximately l5 acres east of Phase ?. <br />1 <br /> The thickness of the sand and gravel deposit was found to average 59.0 ft throuehout thz site. <br />' Overburden soils consisnng of clay and silt wire found to range from 0 to 6 fee[. Clavsrone <br /> bedrock of the Laramie formauon comprises the stratum beneath the sand and gavel layer. <br /> ' <br /> 1, I'If('Ilif <br />1.1C0J6'Giulrv'~_¢cly:runul re~n.J .6.: <br />~ `' <br />