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UV/Z'diar 1b 07 9113 361 0947 SPARGER 10013/014 <br /> I <br /> SrgerAnalytical laboratory DMslon <br /> Mobile Laboratory Division <br /> Tdchnok�g�o Inc. Scientific Division <br /> With Automotion in Mind <br /> EPA Method 8020 <br /> Modified Laboratory Control Spike (LCS) & <br /> Laboratory Control Spike duplicate (LCSD) BTEX Analysis Report <br /> Attention Mr Tom Landwehr Date Sampled Aug 29, 1997 <br /> Apex Envirotectt, Inc Date Received Sep 2, 1997 <br /> 7644 madtson Avenue, Ste 106 Date Analyzed Sep 9, 1997 <br /> Fair Oaks, CA 95628 Invoice# 8326 <br /> Project ID ERA02 009 Project Name Moore Petroleum <br /> Cbent ID LOS/LCSD LAB ID 8326-LCS <br /> 8326-LCSD i <br /> Matnx Water Dilution 1 1 <br /> Spike Sample LCS LCSD LCS % LCSD % % RPD QC Limits <br /> Analyte Added Conc Result Resaii Units Recovery Recovery Recovery RPD %Rec <br /> Benzene 30 ND 27 26 ug/l 90 D% 867% 38% 20 65-135 <br /> Toluene 30 ND 28 27 ug/1 933% 900% 36% 20 65-135 <br /> Ethylbenzene 30 ND 29 27 Jg/I 967% 900% 71% 20 65-135 <br /> m,p-Xylenes 60 ND 60 57 ug/I 100% 950% 51% 20 65-135 <br /> o-Xylenes 30 NJ 29 28 ugll 967% 933% 35% 20 65-135 <br /> Surrogate% Recovery of Trifluorotoluene= 74% LCS 104% LCSD <br /> ppb-park per bilhon=ugll=m icrcpams per II%t <br /> ppm=parts per minion=uVm =m c ograms per md9liter <br /> ND-Not Dote omppund(s)may oe p e3ent st core-trak ons belAv `w de'ect,on{m <br /> Sep 22, 1997 <br /> L James,Principa Chemist Cate Reported <br /> S:IARGERTcCF+NDLCGY AP,IALYTiCA.LA3DRATORY INC 3S CERTIFIcID BY THE STATE OF CALIFORNIA <br /> DEPARTMENT Cr IiE.,LTH SERVI,;ES AS A HrZ4ZDOUS WASTE TESTLNG LABORATORY <br /> (Ceflit"tlonNo 6^41 <br /> 50201csw <br /> 3050 Ftp Circl,3 Suite 112 a Socromemo Coll`crn,o 95827 * (996) 362-8947 6 FAX(946) 362-0947 <br />