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<br />~~`~ <br />\ <br /> <br /> <br />Wyoming ~vel Com~an~ <br />445 Union Boulevard • Suite 310 • Lakewood, Colorado 80228 <br />~~~ II~II~I~~II~~I~~ <br />999 <br />Telephone (303)989-5037 <br /> <br />DEC 1 192 <br />1313 Sherman Street h~in;ED LF.i!Q R~i;~^,~' "~;~) <br />Denver, Colorado 80203 Colo. Qe~. ofidat~r~i K;;o_.r~~ <br />RE: Response to your letter of October 22, 1982 regarding <br />Technical Revision to Permit ATO. C-026-81 Railroad Loadout <br />Ms. Sandra L. Emrich <br />Reclamation Specialist <br />Mined Land Reclamation <br />423 Centennial Building <br />Dear Ms. Emrich: <br />By this letter Wyoming Fuel Company is responding to your <br />two concerns for the Technical Revision for the Railroad Loadout <br />in Walden. <br />In response to your concern regarding runoff to the south <br />end of the site because of elevation differences, you, must under- <br />stand that once Wyoming Fuel Company begins loading coal, the coal <br />stockpiles will in fact raise the elevation in the north part of <br />the site which will allow drainage to the south. <br />The descrepancy between no pond being on the site and com- <br />pliance with our NPDES permit stems from the fact that, based on <br />our calculations a 10 year-24 hour event caould result in a pond <br />that would be approximately 100 feet by 100 feet and 1 foot deep. <br />Since there is already a depression in this area and if any dis- <br />charge was to occur, it would go into the adjacent irrigation ditch <br />which in fact, is higher than the present depression. <br />The original NPDES permit was applied for in 1978 under a <br />different set of circumstances. Wyoming Fuel Company will however, <br />commit to a sedimentation control structure as required by our <br />NPDES permit. This structure, however, will be very small and i~1 <br />order for you to get a better idea of this we strongly suggest <br />that you meet with us at Walden to go over this sedimentation coc~trol <br />plan. <br />~~\ , , `C~ ~-Y h~ IJ~\\ S •- .. •: n~ ~ - o-.ve~ Or, Cortk'el <br />•~~ l I\~ //\) <br />November 22, 1982 <br />