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NCC INC. 13036797888 P. 03 <br />OIOfi <br />GeeternNCa1 / EmAranmmnl f~~.wEr[ne • M.reN•k TESliai <br />Apri13,19% <br />Twcntymilc Coal Company <br />29515 RCR X27 <br />Oak Creek, g(Fi67 <br />Attn: Mr. Rick Mills <br />Job No. 95-2431 <br />Subject: Roadway Certification Letter, Poad A <br />Access Road, Foidel Creek Mine, Routt County, <br />Colorado. <br />Gentlemen <br />I, Brian D. Leq a registered professional engineer, registry number Z575U, is the state of Colorado, certify that <br />the aarthern end of the Pond A Access Road was resurfaced is accordance with our cecammendatiuns outlined <br />is a letter prepared wader this jaL u•uabcr and dated February G, 19%. The conuauor restufaced <br />appro:nmatety tuna uneat teat of roaaway. The portron of the roadway resurfaced started at the Batch Loadout <br />• Facility and terminated just south of the costing Drag Line. <br />During the period of March 27, 1996 through March 29, 19% periodic inspections of the northern end of Pond <br />A Access Road were made to verify that the new subbase and road base gravels were placed and cotapacted to <br />at least 95% of the modilicd Proctor density determined in accordance with ASTM D1S57, We also verified <br />that the contrattor had placed the reQUired amount of suhhase and hale rnnrsn gravrlc Thr. cnhhas[. and road <br />base gravels were ptacea [o mtncmum thickness' of 12 and ti inches, respeuively. Placement depths were <br />verified during rhr. prrindir site inspections. Copier of our duly inepeetioa reports, including the compaction <br />Lest results arc enclosed. <br />Ir you have any qucsdons regarding this cer[uiwuon, yr it we can lx of further service, please contact this <br />off ce. <br />Sincerely, <br />NORi}IWESr <br />Brian D. Lcn, P <br />• <br />(970) 879.7688 • FAa (970) 879.7891 <br />29585 U.S. 40 Weet. Box 775726 • Steamboat Springs, CO 80477 <br />