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' • • <br />. i~noth; ... Sr.:i.tl1 <br />i • C•.~:c:r~er 18, 1975 <br />p•"~;i^- <br />~) the lina'ations of tl[c 1 resent ore-sorting system to d~CCCt se[a1L aau~unes <br />of ore ante:mixe,l with aroc amounts of waste rock. <br />',) 1ltcrnnrc ra~tl!udc of pr[-sorting. '1"u•sc methods :should bo sc;isittvu <br />^r.~.+r,~,h to insarc ti~is C[ partm~r.t that ere ~., nut Ding du; uslt"1 ^s w,cs[ c <br />rack. <br />- 51 the ; ereent of ore late: mixed with [h•' waste rock. ;+n est~•r.si~: ~ survey <br />,E [be :;ante rock stilck pile should U~ c.:n'ied out to determine this. <br />- ~~) runoff and raiuiall con. itiuns fir thz Schwartzwaldet i^.inc ar.d or: [llca. <br />it the acid content of rair in this region. <br />--~) •.he physiochemical reacllons between the ore, the waste ruck and the rain <br />water. <br />- 3) an estirz~te of the .;mom t of "'-6Ra carried to C1lston Creek as runoff from <br />tl[c waste rock pile. <br />• -'i) the disposal of pocsibl~ contaminated railroad timbers and other mine .:1tt^ <br />'oeluw the :paste rock st[ ck pile. .~ survey of t}i~se waste materials slicul~ <br />he conducted 111:1 if any materials are contaminated, an nlterr.a[i~~c mct':cd <br />of diapotal ::i:o:ad be d~ scribed and ii[plemented upon the :[prraval of this <br />Deplrtr..~nt. A procedur[ to survey other waste materials before they 1rc <br />disputed of in this man[er should be described. <br />Sincerel}•, <br />} ' ~ <br />~11,+crt .1. llsz[c; Director <br />Radiation ar.d Ilazarduus W:[sres <br />Control Division <br />A.) I I : i ±IS : ew <br />cc: Edward acGratii <br />Sob Shu!:lc a <br />G::orge Prince <br />P.1de Orell <br />~I <br />