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RULE 4 PERFORMANCE STANDARDS <br /> 4•'et,=.,,,4V,e,r4-,,..3'taKa,t+4,„e aw '..,0,M:N,1=anR,a.a tint eie....R44, <br /> Memorandum <br /> FOR: .1 A.ledger May 23 1096 <br /> AUL Orli)CERTIFICAT[Oti <br /> The purpose of this rr.emorandum is'o address Cern.cation of Coicwyo•s Haul Road Segment A and <br /> Segment B <br /> It is my understanding that CDMG rules hav e changed to require,for all haul roads and access roads <br /> consn acted;nor to August I,1995 a"relevant showing,on a case by case basis,which may include morntonng <br /> data or other evidence”that roads are Al compliance with applicable performance standards <br /> As you are aware,Colowyo's haul toad was consut:eted us 1977 and there is no one at Colowyo who <br /> can certfy the ccaistrucnon of the haul road The revised CDMG regulaaen poses a problem because an <br /> engineer cannot cerafy consrructon of a road which he did not witness or supervise To do so would tisk <br /> cancellation of their professional license For this reason,it is not possible for the Colowyo haul road <br /> construction to be cemfied by a P E <br /> 1 can,however,provide the following qualitative haul road performance certification based in par,on 1) <br /> the reported 19 year performance history of the structure and 2)based u^on nry current observations of the ttaily <br /> perttxmance of the haul road. <br /> HAUL ROAD CERTtECAT1O1y <br /> I am a mining engineer,registered in the State of Colorado,and experienced in the construction and <br /> inspection of haul roads. <br /> To the best of my knowledge based upon the available information regarding the reported,long tern 14 <br /> year performance of Colowyo's Haul Road and my ongoing observation of the performance of Colowyo's Haul <br /> Road. [believe there is sufficient qualtauve evidence available to suggest that the Haul Road is in compliance <br /> with the applicable performance standards of the CDMG regulations in accordance with Rule 4,03 1 <br /> AwWtnunutitmnhr <br /> f : ' Lkerneyer / <br /> ;5 25436 <br /> ado Registered P E 25436 <br /> NA1. <br /> 00 Date <br /> se RG Atkinson <br /> )tit_; <br /> Rule 4 Performance Standards 4-4 Revision Date: 12/20/19 <br /> Revision No.: TR-135 <br />