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Ci✓ochemical Consultin� Services.
<br />70=1ing
<br />Soil C Oc, hC ill isn
<br />Risk At, Sslllcllt
<br />(?sober 31, 200Q
<br />Colclrrido.lri�> Against Rewitirce Destruction (CARDt
<br />PO Box 1-43
<br />Wellington, Co 80549
<br />NIctluber" oi"("'ARD
<br />rench micai Con SCI I I r (GCS) is submittin3! 6611owini;! con)m tits Oil
<br />rinopcl t Basefino Pkin (R Sqwued, 20U9, 1 he conmems are basm! oil
<br />i oest
<br />-industry pracke, sound sdentific analysk, and over 20-years, of '(W'S experielice in
<br />the nelds of enviummental inves6gatimmis, samphng and analylk phin, gowdwmer
<br />rmmAcw±g, and rem•dimAin of contalilimued oulld va.,;ci and soil
<br />Cbmnwnt 1. Section 2,1 Groundwater Monitoring
<br />The importance of gmundwater sampliti proceduies and t'ne, colleotion, of t?
<br />- Q%Q`� IhC diSCLIS�,Otl fiLlilS 10' 1 i ze
<br />ep r e's talive - sampies from each Nt . is nt
<br />oed. , Hov, t� - rI
<br />be inlimmatwe tWuNg vand smAtical nwthods f6r locatir, -he well., (a.' i sysllellmlic
<br />Mali
<br />Z '!ri'd Tando"il svicction, 6flberi, 198'., [-A'A� 2 - -- ,,kc et A , 20 07) to ensure
<br />repregelualNe sarrlple "�re c, AktCled Ii lllie f,. (2'002 p, 8) notes thai - zl
<br />is m(emieJ w I/m/ (kifo 41r,"
<br />The urc zone is a v small Anctio" tW the toms aq6kr Mume I We pmpowd
<br />exempt.ion 101w, The I'l Cquelov of Wells pla(:ed in the, or�:, Zone, should reflect a vcry s;md!
<br />pemouge OFA wells """Impled for WON (If I(jUit'Cr . les", th'an 5
<br />pewmit o•0w Wis shmik] be 1111L..S in We are zone. or 1 in :11 "As can be in the ore
<br />•ow) TN s sm.dl of welis it) I ho ore body is accoi 1 tit ed for by tl�ing a whet
<br />Inelho'd jocatin ?he :iLCh as asystema[izprid placed ovcrlhe
<br />proposed aquifer i,-\elllptioll zon, For n symematic, grid, I ShOUld be
<br />placed ever the payond alkIr exerpmOn mva to ensure 'that a "ninimmi ;")f orlc weil is
<br />pAced in eveg 4 acres (N C. M03: f, 5-39),
<br />lie imporuum of sampling all hoti ui",he aquis"er is a1m) onNed Awn the discussion
<br />Of Mpresentative sampics; I screowd imorvals limitu'd to 20 at (SOP 5,
<br />II, . I)Ldlet 0t,,ied wc-lb� nnst be toed to obtain water samples Yorn screened
<br />throu hokit be embe aqlkr thickness A sanlq* Boni a AWL 20 f! Royal
<br />(e.p, the ore wiw) of a much thkker aquinn is not a repmsmtativl�: saniple, 'I'his Situation
<br />3767 RdWwrce Umc M 226-5329
<br />HWc AQ (Mi 45236 inci'mcom
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