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~rl <br />JRN 2a '32 1:13 <br />PRGE.©02 <br />~bering, 1~1!urth & Associates <br />Consulting Civil Engineers <br />Registered Land Surveyors <br />1015 Elkton Drive • Colorado Springs, Colorado 80907 • Phone (719) 531-b200 • Fax (719') 531-6266 Ext. 3 <br />January 23, 1982 <br />Mined Land Reclamation Division <br />1313 Sherman St.. Room 215 <br />Denver, CO 80203 <br />Attn: Mr. James C. Stevens <br />Sr. Reclamation specialist <br />Gentlemen: <br />Re: Tiger Timber <br />Expansion Site <br />Permit No, M••91-082 <br />Project No. 91020 <br />Oberilrg, Worth ~ Associates (OIIA) has, at the Division's request, reviewed <br />the topographic condEtions along the South side of the Permit area, specifl tally <br />with respect to the potential of stot'IRwater runoff leaving the permit area. We <br />understand the state's requirement of maintaining the hydrologic balatrce with <br />respect to the mining activity and the fact that the load-out area of the mine <br />and the sawmill operation drains naturally to the South where flows leave the <br />site. The runoff could potentially carry silt and sediment as it leaves the Permit <br />area either as sheet flow West of the sawmill or In a concentrated manner in the <br />road ditches along the access road. <br />Tate operator, Tiger Timber, Inc., proposes to control the sediment load by <br />installing stlt fence approximately along the limit of existing disturbance West <br />of the sawmill. Tiger Timber further proposes to install hay bale silt c2recks in <br />the roadway- ditches along the access road in accordance with accepted <br />installation practices and at an interval suitable to control sediment from the <br />concentrated runoff. These runoff control systems would be maintained by the <br />Operator. <br />This letter becomes a part, of the application and amends Exhibits F:-1 and <br />E-2 as indicated herein. It !s the app11cant's understanding that this <br />commitment completes all of the DSvlslon's reyuirewents Por approval of the <br />reyuest for a permit. We took forward to rer•.~}pt of your approval letter. <br />~ cry truly }-ours <br />i>I%t~,F;R~ING~~, ~WIIRTTi & ASSOCIATE.'i <br />Roland G. Obering, P.£y~;. <br />RGO/p <br />cc: Tiger Timber, Inc.. Frank Laughrey <br />Mark Heffner, Plant Ecologist <br />File <br />931E17Wt19{a2olAx?J <br />k <br />