Laserfiche WebLink
y-- E~ ~~ <br /> <br />standards, or ar•e they sirnply the main sources that conlr'lbttte to the <br />Valley's presumably small tnmollnt of air pollutionl l.ikr:;rise, are the <br />"la'rg~ quantities" of ft!gitive dust large relative to air quality stan- <br />daidsl lihat kinds of data cr docter,2niatlon store used in arr°Iving at <br />these conclusions? <br />The air qu311ty data presentzd in 7~ble II-3 ara, scnaahat confusing <br />in ti:c r•esneets. First. at the top of t;i2 i:aule a distinction is rr4de <br />bett:een "suspeneed particulates" and "32n~ene solubles", but this dis- <br />tinction is not disc!tssed in either th:' text or i:he table itself. The <br />distinction that is being made should ha explained 1n tl:; EAR. Secondly, <br />readers of this table cculd also t2 confused Dy tlt>, selecf:icrt of sa.•npl= - ~`'~ <br />ing sites, all of r~hich are locatod as scrr.~ 6istance frcr; f't:: study area. <br />Ficntrose, G21ta, Gunnison, arts Crested Butte arL apNroxil,;;:tely 31, 27, 44, <br />and ~~ air miles, respectitcly, r'roal Paonia. 71:e FxR sharld ;.ddress the <br />reliahility of data f;'cm tt;~sa sites as inaicai:ors or air quality in the <br />vicinity o~ these propesad ac'i1on5. <br />41e understand that baselino air qunlfty data in the study aria are <br />teing yathered u;:der contract tvith Thorny Ecological Instit_t;te, Iac. <br />and that sc~a ef~nrts are being rk?de to undarsta„d local ~:~;ico,^ological <br />co.~dit'ions and their passible interactio;i tri'th air pollu:r,;tts. ~fhes~ <br />data and analyses should bn prason2ed in the '.'?era FAR. 5irce m,,any of <br />the loc<_1 ar gt'aliL'y c;aa used in these analys•~s trill prc),l.;~l:ably hive <br />h~an collorte+i t~rh'i12 •the mi:'12 bench and laadout s+.+ciliti2s t:::r~ b2inc~ <br />built, any etiect; of t,`,~se .c'~ivitl~s an true bcselin2 (pre-proj,:~t <br />air qua~ity s~tn:tld also be discltssed. <br />Tire discussion J'~ air quality i~apacts also needs iraptroecaant. <br />Again, tl:e co;lciusiens of cite ildis study (i'~,n;: TII-2} WI•e sar;~~;lt+at can- <br />fusirg becruse the perce~taga inc:zas~ o~ d~rrense of various pollutants <br />predic%ed as a result of eel mining arz noe Hr~sentad in iil2 context of <br />either qu~ntii;ativ2 baseline data or- air qu~liiy standards. The assw~p- <br />tions and parwr,~t.?rs involved iii u~~riving at Ylra conclusions e'f the Udis <br />s~udy should also be discussd. Dogs ilia p~~cicterl change in ?articu- <br />lates, for e::araple, include 'r!:gii.'1'^: dt!•T~ caused by consirut:cion, mining <br />2nd shipping Oi r,0?a or only' i:ili? j,a;'1"i1a:13~L°S ~~~77 ~i: ~~?~ "!: X71 ~Oint SOU rCQS <br />(e.g. vc4ricle or equil~+lra.,it e:<[,t,u:;t's, have hua:lag systa;a>, acct)? In <br />n~;ieral, the conclusions dra::n f-rc:a 't+t2 Udis stt!dy arc st,T:~ari~ed in <br />teo brief and +r~;ue a r;anner. <br />i+te air q~:llity impacts of v::ri'ous levels o` c7a1 pr~.;ut:t'inn am <br />V3710+5 1eV31S J5 SC3Cund.7Yy ~~~Y510(':ii~l5t ULO i~0 {ndU C.d ~l`C';:'i l+ SilOUld <br />;.2 pl•adicted a; ar•~:ciseiy as c,,as-ible and display.d in the zF;R. '/ehir]9 <br />C:ll'1sSin;i:a sh'.luld•~ly disnlayCC lip L2Yi.;$ OT `!.-!1'icl~ ;.tiles t'iuvl!l;:d and an <br />a"t"iL~7't Sit.":Ulrj f)2 iT,adC 't0 C51`iri'.~'i0 the ~'i°I!~'Ii.IV'~ r'USt y~n?1'71'C'd py COdi <br />loading and hat!11rg. These ~_stara•_t.es are o; ilarticula'.^ i~r;~o'rtance he- <br />crlse it is likely that fuyiava rius't produced by til.?se ;:ctivitics t;culd <br />'R <br />