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<br />June 29, 1993 <br />Mr. Harry Ranney ~F~~E/lr;`G <br />Reclamation Specialist JUN <br />Division of Minerals & Geology 29 1993 <br />1313 Sherman Street, Room 215 ~~~i~~en ~,, „~~ , , <br />Denver, Colorado 80202 ~ ~ ~~ a SEC"egv <br />RE: Minor Revision to Permit C-81-008 for a Small Area Exemption <br />Dear Mr. Ranney: <br />Western Fuels-Colorado, A Limited Liability Company (WFC) requests approval from the Division of <br />Minerals & Geology (DMG) for a small area exemption of Topsoil Stockpile 'K' due west of Pond 007. <br />This stockpile covers approximately 2.88 acres and comprises of four small segments (see attached <br />drawing). <br />Area "1' (1.17 acres) drains to a small depression or sediment trap (Area "4") that contains 0.16 acres <br />in azea and a capacity of 0.32 Ac-Ft. The sediment trap can contain the 25-year 24-hour event of <br />0.23 Ac-Ft for Area '1'. Area "2" runoff (1.07 acres) is planned to flow into a contour ditch, which <br />discharges into Pond 007. Area '3' (0.48 acres) cannot be diverted into Pond 007. So, a perimeter <br />ditch with silt fences at the discharge points aze planned to control sediment to Calamity Draw. WFC <br />believes the small surface runoff from Area °3" will not significantly affect the large drainage area of <br />Calamity Draw. <br />The as-built information wilt be incorporated into the appropriate permit drawing when this small area <br />exemption is approved. <br />Sincerely, <br />~_a~~ ~~ <br />RLG:MSfjg Ross L. Gubka <br />ce: OSM-Albuquerque Chief Engineer <br />Murari Shrestha, WFA <br />ew onion me <br />P.O. Box 628 <br />Nucla, Colorado 81424 <br />Tel: 303-864-2165 <br />Fu: 303-864-2168 <br />