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?1 10~46aM CULOWY~~ CORL <br />,;ONTRACTDRS <br />ENGINEEFS <br />DEVELOPERS <br />~MORRISON-KNUDSEN COMPANY, INC. <br />ExECUnvF OFFICE <br />MORRISDNMNUOSEN PLAZA <br />P.O. Eox 78887B019F. IOAnO U 9.A 99728 <br />PHONE: (2 011 71610 8 8RflEx' 911A98 <br />April 14, 1986 <br />Mr, D. J. Rose <br />Operations Manager <br />Yampa Mining Company <br />P. 0. Box HH <br />Hayden, Colorado 81639 <br />LTC-9 (yuij" <br />REPLY Tp. AIORRispN.KN',J05EN COMPANY. :NO, <br />P.O 10x 17218 <br />BAN AN10N10. TB%A5 U I.A. 71717 <br />PHONE. (51 Z197a0.11 <br />Subject: Certification of Outfall 004 -:Sedlmentation:PondeHG-83 <br />Oear Mr. Rose: <br />On Aprit 11, 1986 I performed en inspection of the outfall 004, located at <br />Sediment Pand HG-8 at the Hayden Gulch Mine. I am a registered Professional <br />Engi.rteer in the State of Colorado and am experienced in the design and <br />supervision of earthen construction. <br />The purpose of my inspection was to certify the structure as required in <br />Rule 4.05.06(7} of the Colorado Mined Land Reclamation Division (CMLRD). As <br />part of my inspection, I have reviewed the permit design documents, surveyed <br />information of the site, and have inspected the structure. I have also <br />discussed the construction of the structure with the engineering staff at <br />the mine. <br />The structure has been constructed in accordance with the design as shown in <br />the technical revision dated October 1, 1985, and has been constructed using <br />prudent and proper construction techniques. <br />As a result of the above mentioned inspection, I hereby certify the struc- <br />ture as meeting the criteria of the CMLRD. The structure has been con- <br />structed in compliance with the design submitted and approved as the Tech- <br />nical Revision - Pond HG-8 - Hayden Gulch Mine. <br />P. E. No. 17570 <br />