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~1 '~ <br /> <br />GingeiyAssnciates, /nc. <br />~ CONSULT/NG ENG/NEEF75 <br />1310 UTE AVENUE <br />GRAND JUNCTION, <br />COLORADO 81501 <br />TELEPHONE 303 245-0627 <br />• <br />iii iuiiiiiiiiiiiii <br />999 <br />PRINCIPALS <br />OEFVL W GINGERY <br />iARFY A. MULLER <br />FLOYD E. MONTGOMfFY <br />JOHN W. CASKEY <br />DOUGLAS C. STOVALL <br />HOME OFACf <br />2840 SOUTH VALLEJO STREET <br />ENGLEW000. COLORAD080710 <br />TEl fPHONE 30J 761 4860 <br />August 19, 1980 <br />~k~~~~~~ <br />Mr. Pete Evans <br />Mined Land Reclamation Board <br />1313 Sherman Street, Room 723 <br />Denver, Colorado 80207 ~'%~,Yl/~n <br />-- ~yLL'l~ l .4,.~-o-Q ~- <br />Re: O. C. Coal Mine No. 2 - Permits <br />Job No. 1974.601 (~Q~(/~~y;-~ ~.~-~-~ <br />Dear Pete: <br />Ail G 21 1980 <br />rv~!nlEO c,~NO r3Fc~aM~t?iou <br />Colo. Dent. of P, at~~r21 Hcso;~rwa.^. <br />As discussed in our telephone conversation of August 14, <br />1980, we have revised the drainage plan for the project. <br />Ditches D-1 and D-2 will now be collected by a ditch which <br />runs directly into the sedimentation ponds. This ditch will <br />be lined with either shaker pans or rip rap to control ero- <br />sion. <br />If you have any questions, please give me a call. <br />Very truly yours, <br />GINGERY ASSOCIATES, INC. <br />Ronald R. Fromknecht, P.E. <br />Project Manager <br />RRF/dd <br />cc: Mr. Bob Weaver <br />CIVIL ENGINEERING/INDUSTRIAL & MINE FACILITIES/LAND SURVEYING/STORM DRAINAGE/ST RUCTURALNJATER & SANITATION <br />J <br />