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<br />t ~''~ fSUREAU OE LAND MANAGEMENT
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<br />'1'0: limb F:crshuw, Cenlnhlst
<br />Snn .loan Resource Al'ea (lific,•
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<br />Pti„r.i: 5cncC Arclu:r, Air ttunl..it:y 5pcriaLi::L~.in~+.
<br />Colorado Staro ltfficc ~?
<br />Subject: CltLuney Ro,•I: L'PU\ Al.r ~ua.lily Lnq,acC A:.sc:::menc
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<br />e\s discu:::;ed during ,tor Lc].cphone convcrs:~l irni of 5cptumhcr 7, ]0.3:!,
<br />l'4a(:U Bnv irnnmautal, inc., drvclo petl :~ :;ct:,~~:n ~n~ Loul fur cvni unLl,ni i~l
<br />putent.ial. total suspended particu.l.ate. a:ir rlual.ity i.mpacCS fr.nm a si:rf.ace
<br />runt min,_ (Nr,mugraplt [•tethrnl For lleterminin,:, Tr:pncL nn 1'Si' ConcentraLLni::
<br />Renultinl; I~r.nm Surfn,•c Cna] `lining in Cnlot:adn, Contract: Nn. YA-.'ilt)-
<br />FNU-a4, ,\u gust 19F2). 'flte techu.ique i-•, very con:;ervat.i.ve and biu::cd C.'
<br />over-~stirta Lr iugtact:; (worse case nd ne c.~tnf i;;u rnl i.on, uti Tizinf; m: r,:imi nu
<br />T:SI' emis::iou rather Chan unnna] averagen, couscrvative mereorol.n;•irnl
<br />elssuraiug nu other ground ]cvcL 'I'SP source:; t~r.itit.in tatro.e m~iJe:; non: ally
<br />eluvatr,l 'I`.;P :;nnrcen talLhin sis miler., a :.in'faru dlsCurbanr.c rn Cry nl
<br />10 acre:;/pear and coal r:xtt:action race ot~ ,''(1,(100 con:./ye:u', Chu or.L.iu::,co.d
<br />mar.inutm :umunl 'I'S 1' ~missluns •.roua.d be nc;:rly '90 cons/yrnr. '11t i:: ,nn Lr
<br />Cr,inr;I.rLed a:; a maximum annual avi:rnsc 'I'.`il' i.urrca;:d of ]r_ss Llutn I I mi~~rn-
<br />gr;nm-./.u6ic meccr, nr u1Ci.macr_ off. CrncC c,nt~:ontratiou oC .leas than ;l
<br />u~. Lr.ru l;ram.~/cubic mecar (aa:;uming bacl:};rnund ~:onr ut[CaClnns ol'. 40 iuiriu-
<br />gr:uu~/cubic mrter ~,; in Cnrti•;:, CO). '1'lils inncrnCral.iun is well wiiliiit
<br />1'edot'al and tiealr nial,icnt air quaJ.lty :;lanrl;n-d:~ ul 7i wi.cmgram:',/nil~i~:
<br />mcr~:r; I'SU pu:~miC. r~~c,u].aci~t~~:: arc noi. apl,l irnblr.
<br />Reg,arJir.p, Mr. Ham]]ton'is health problem, the fa]luwi.ng discussion (a:.
<br />s [.stud iu Chu SC:IW :\it 1'u.l .l uciun Control Itivi:; ion's Cul nrndo t\~ir tlnnLiLy
<br />Uatn I:~.•purC, L9ti1) ni.,.q he u:;rtul:
<br />'"I'hc hulil:.tn nose filtrr, out 99 percrnt nY Lhe Jar.ftc nod medium
<br />sire part.I cl us. The rr:;c en LCr Litt vi u,l pi p,_ and lun};:;, taho.re :~inm:,
<br />i;11UlJn as i.llhillable IlarLiculatcs, riin}• tit prut,~ct]vc mucuur; :uid :u-~~
<br />n•muv0d, tiome of Cite sre.1 ].l c;l, called n~:;pirable park col ale;, ~n-r
<br />drp,t:.i ced Lu th:: lung,;' tinyi:~ir ::ac;: (alvcu ]. I).
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