2006-05-25_REVISION - M1978327 - Laserfiche WebLink

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- l .. I • V ' ~ i' ~ ' 4 I r _ ;q. Ms. Erica Crosby" ~ , Division ofMinerals•andGeology" ` May 23, 2006 ;,`• ~ . ' Page 2.of4 ~ :. ~ ~ : _ , mined pre-1978, is not included m the X58-acre area., From review and interpretation of the original:permit materials, if-appeazsxhat~the 58 acres including the twalazger groundwater lakes, ,~.~ is consistent with the intent of the original permit boundary.. Aggregate'processing equipment on the pioperty•handles.aggregate material from multiple. permitted minnig operations and is not included in the 58=acre' permit lio'undary. All mining ,operations within the 58-acre permit boundary and, for that mattei; the entire.105-acre property parcel, are complete. The majority of the reclamation foralie lakes,and shorelines has already been completed and;the rest;of the pazcel is currently, used for•iridustnal and commercial activities,,consistent with Larimer County zoning . _ .• , COdeS ~ 'r i ~ ~ ~ .. Based upon the descnbed mterpretahon of the original mining permit boundary, a revised map of the permit azea is attached:, Following Amendment AM-01, which added 83 acres to the permit area," the permit boundary included approximately 141 acres, The attached' Permit Boundary Map . illustrates the 56.8 acres of the"permit area included in the release request and the proposed new permit boundary that includes approximately 84.2 acres. •'~. _- Tha',reclamation plan,~from'.the~ 1.97,8 permif materials describes reclaiming the mine"cells in the original permit area as~~groundwater lakes of unknown size and lake banks.having between 2.SH:1'V .to SH 1V `slopes; 'Surrounding shoreline areas were described as being seeded with .grasses. The ma~ortyofahe existing groundwater lake shoreline, has already-been graded and stabilized with vegetation:,. However, some groundwater lake•shoreline and adjacent azeas may need to;be graded or scarifed and revegetated for"stabilization. , Active exBavahon and reclamation activities are, currently' located in the eastern section of the perriiit' azea' (perniit area added from Amendment AM-Ol). The majority of the mined azea has .been backfilled~ ~ . A~;portion, of the 6ackf Iled azea has been stabilized for, concrete and asphalt recycling operations? and~ahe`remaining azea has been.revegetated• for.. stabilization. Some additional mined'areas_ sti1T need to be backfilled and revegetated for stabilization. , During.approval.of Techiucal~Revision'TR-03, additional fmancial~warranty was posted for the mining'arid reclamation of,the`eastern 83 acres of the Kauffman Pit (permit azea added from Amendment" A1vI-Ol)... If is our understandingthat, with the additiori;of Technical -Revision TR-03, a fnancial~warranty of $292,100.00. was posted for the Kauffrnan'Pit permit. The table below summarizes.,the:existing'mining disturbances and proposed new financial warranty for reclamation' of ~tlie; Kauffman Pit •following approval of the Wagner/Kauffman Pit #3 AmendmenfAM-0,1`:. .: ~ - ~. i ,. '~ • ~ ,~ .. '.. - { - ;. _ .. 4. L6 y .. .1 ..