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08/18/97 10:49 0916 362 0947 SPARGER <br />Sparg r <br />_ eto <br />Tdchhok4y. Inc. <br />With Automotion lin M)nd <br />EPA Meth -W-8020 <br />Modified Laboratory Control Spike (LCS) & <br />Laboratory Control Spike Duplicate (LCSD) BTEX Analysis Report <br />Attention: Ms. Sydney Gel Date Sampled: Aug 14,1997 <br />IT Corporation Date Received: Aug 14,1997 <br />4585 Pacheco Blvd. Date Analyzed: Aug 14,1997 <br />Martinez, CA 94553 Invoice <br />I I I Jill I I I I I I I III <br />Client I D: LCS/LCSl) LAB 11D. 8234-LGS <br />8234LCSD <br />Matrix: <br />ON Dilution 1: <br />Spike Sample LCS LCSD LCS % LCSD RPD OC Limb <br />Name Added Conc. Result Result Units Reco.ery Recovery I RPD %Rec <br />Benzene <br />30 <br />ND <br />31 <br />30 <br />ul <br />103% <br />100% <br />3% <br />20 <br />65-135 <br />Toluene <br />30 <br />ND <br />32 <br />29 <br />ul <br />107% <br />97% <br />10% <br />20 <br />65-135 <br />Ethylbenzene <br />30 <br />ND <br />33 <br />31 <br />ugft <br />110% <br />103% <br />6% <br />20 <br />65-135 <br />ml,p-Xylenes <br />60 <br />ND <br />67 <br />64 <br />ugft <br />112% <br />107% <br />5% <br />20 <br />65-135 <br />o -Xylenes <br />30 <br />ND <br />32 <br />31 <br />ug/kg <br />107% <br />103% <br />3% <br />20 <br />65-135 <br />Surrogate % Recovery of Trifluoratioluene 110% Les 107% LCSD <br />ppo= parts pairbillillon uafts-eirog–rams Of A"Mon <br />ppra, parts per mM- UA = mi—groms par 9— <br />NO = Not Delacbed. Compourd(al may be present at comenvations below ft dollecdon limit. <br />Aug 19, 1191 <br />R L. James, PrindVal Chemist Date Reported <br />SRqRGER TECHNOLOGY ANALYTICAL LABORATORY, INC IS CERTIFIED By THE STATE OF CAUFOWM <br />DEPARTMENT Or HEALTH Bill AS A HAZARDOUS WASTE TIESTIM LABORATORY <br />(Corduslibn No. 1614) <br />8020LCSS.As <br />305D Fite Circle, Suite 912 ® Socramento, C01iiiiii 95827 ® (916) 362-8947 e FAX (916) 362-0947 <br />