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~ ~ III IIIIIIIIIIIIIIII <br />STATE OF COLORADO <br />DEPARTMENT OF HIGHWAYS <br />222 South Sixth Street, P.O. Box 2107 <br />Grand Junction, Coloratlo 81502-2107 <br />(303)248-7208 <br />April 25, 1990 <br />Mined Land Reclamation <br />Department of Natural Resources <br />1313 Sherman Street <br />Centennial Building, Room 423 <br />Denver, Colorado 80203 <br />Attn: Steve Renner <br />Re: Amendment of Dotsero Cinder, File #79-155 <br />Dear Mr. Renner: <br />+~T pe N <br />1 <br />ass"~: <br />";rEQ~B <br />-~ ., -' ~ l <br />APR 3 0 i:~-~~, <br />Pll)NED LAi~aL <br />--.~~ ~A;A710~1 nt~, <br />The mining plan of the above-mentioned pit needs to be amended to <br />indicate that mining will be intermittently active. <br />Per Rule 1.6.2(2)(d), during periods of inactivity, the areas <br />left to be mined will be sloped to drain toward the pit floor. <br />The pit floor will be graded so no erosion will occur on areas <br />outside the pit area. <br />Reclamation will be undertaken as areas are depleted. Material <br />stockpiles will be used as needed for maintenance of the highways <br />in this area. <br />Also, due to the nature of operation, the annual report date will <br />be February 1 of each year. Please notify us of your action so <br />that we may update our records accordingly. Thank you. <br />Very truly yours, <br />R. A. Somrak <br />District Materials Engineer <br />by//~~~2~~,c ~ , <br />W. R. Whittaker <br />Asst. Dist. Matls. Engineer <br />WRW:kkw <br />cc: pit file <br />