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~.~-.: ~~ ^ ~ i - :. % / ~~ ~~':;i _~ • `J~r Uni~l:cl ~~:Itl.": fl~•p, ~ llll(~,Il (1!• till: Inilt'IUf '.: 1:1111 it Llnll illy, 1.:: :I ~f.'f~ll:~lli _ UEXYEi::~:, .:~U;t:QUO SO?0. , .: =.."l ~-., ln /!• +' 1 , Si_1~ I ~i 19f;2 Septc;nbc•r 7, 1982 IEr10RAt;DU!4 TO FP,G(•I Chief, Feder.l Recla~llation Projects~Branch Senior Reclamation Specialises ,' , /~~ MIiJ[ai l.nI~IJ i;~;;(_;!,t ~ ;Tfili'1 Colo. Dept. of A+~It:r~:l i;;;s~urc~~ ~, SUBJECT: Investigation of 'daste Ban.l• Fire Rear Florence, Colorado. The subject fire was reported by Carol Russell of the Colorado Oepart~ient of Ratural Resource, t"fined Land Reclamation Division. The. site bras visited July 20, 19`,2 by t•15. P,ussell, Dwight Araki, Lou i•IcYay ar.d I. The 1~rob12m was a fire in both the. underground de'velop'nertt waste being placed in an abandoned surface, coil mine and a fire in. an abandoned underyround coal minx, Apparently the surface mine intersected or nearly intersected the underground mine eventualTy'exposing ti)ese workings in . the high~rall. ~+hen the coal development caste from the tlerrlin•Creek underground mine, )+hich eras being used to fill the surface mine.,~reached the toe or ti)e Ilighwall it caught fire: The fire in the waste material eras limited to a small area near the burning.abandoned nine. All indications arc that the waste, which had minimal com5ustible cohtent, was ignited by tI)e pre-existing underground fire.. The area near`the high~rzll:affected by the mine fire shovrs all indication of having been present for some time and certainly predating tho placement of :.'the waste. The mine opera:.or and F1s. Russell we.rc zdvis.ed that ±he xaste should be isolated frail the mine and material from the high):~11 placed to seperate the two .burgling materials and the..entire burning area, partially the coal mine, covered with. the finest dirt available.