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LTC-11 (901) <br />CONTRACTORS <br />ENGINEERS <br />DEVELOPERS <br />~MORRISON-KNUDSEN COMPANY, INC. <br />EXECUTIVE OFFICE - <br />MORRISON~KNUOSEN PLAZA <br />PO. RO% ]BOBIBOISE. IDAHO U.5 A. 83729 <br />PHONE: (20813865000/TELEX: 388439 <br />Aprii 14, 2986 <br />Mr. D. J. Rose <br />Operations Manager <br />Yampa Mining Company <br />P. 0. Box HH <br />Hayden, Colorado 81639 <br />REPLY Tp: MOPRISON-KNU0.5ENCOMPANY INC. <br />PO. EO% n219 <br />$AN ANTONIO, TE%A$ V.S.A. 78217 <br />PHONE (5121821-0481 <br />Subject: Certification of Outfall 007 - Tipple Pond "B" <br />Dear Mr. Rose: <br />On April 11, 1986 I performed an inspection of the outfall 007, located.at <br />the Tipple Pond "B" at the Hayden Gulch Mine. I am a registered Profes- <br />sional Engineer in the State of Colorado and am experienced in the design <br />and 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 named herein has been constructed as shown in the original <br />permit application, and is currently being modified in accordance with the <br />design approved on October 24, 1985. The structure has been constructed <br />using prudent and proper construction techniques. With the installation of <br />the spillwa 0 ~ id will meet all CMLRD requirements. <br />4~ 8 <br />~iQ~ ~EO~~If ~'/ y~ <br />Jerry a o1C egistered P. E. No. 17570 <br />JES:sr <br /> <br /> <br />LJ <br /> <br /> <br />