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Sr <br /> (� <br /> parge Analytical Laboratory Division <br /> vMobile Laboratory Division <br /> rechnologyinc. Scientific Division <br /> in Mind <br /> EPA Method 8020 <br /> Modified Matrix Spike (MS) & Matrix Spike Duplicate (MSD) <br /> BTEX Analysis Report <br /> Attention: Mr. Jeffrey Rothgery Date Sampled: Apr 29, 1997 <br /> Apex Envirotech, Inc. Date Received: May 1, 1997 <br /> 7844 Madison Ave., Ste. 1,06 Date Analyzed: May 13, 1997 <br /> Fair Oaks, CA 95628 Invoice#: 7718 <br /> Project ID: ERA02.004 Project Name: Moore Petroleum <br /> Client ID: MS/MSD (Batch) LAB ID: 7725-008MS <br /> 7725-008MSD <br /> Matrix: Water Dilution 1: 1 <br /> Spike Sample MS MSD MS % MSD % % RPD QC Limits <br /> Name Added Conc. Result Result Units Recovery Recovery Recovery RPD %Rec <br /> C/ <br /> Benzene 30 ND 35 29 ug/I 117% 97% 19% 20 65-135 <br /> Toluene 30 ND 37 30 ug/I 123% 100% 21% 20 65-135 <br /> Ethylbenzene 30 ND 38 29 ug/I 127% 97% 27/0 20 65-135 <br /> m,p-Xylenes 60 ND 75 57 ug/I 125% 95% 27% 20 65-135 <br /> o-Xylenes 30 ND 37 29 ug/I 123% 97% 24% 20 65-135 <br /> Surrogate % Recovery of Trifluorotoluene = 107--,/o MS 96% MSD <br /> ppb=parts per billion=ugA=micrograms per liter <br /> ppm=parts per million=uglml=micrograms per milliliter <br /> ND=Not Detected. Ccmpound(s)may be present at concen7a=ens below Te <br /> f <br /> r <br /> May 19, 1997 <br /> Rh.James, Principal Chemist(1� _ Date Reported <br /> i`•/ SPARGER ECHNCU=GY ANA.LYTICAL'_A=CRP?rPY.iNC,is CERTIFIED BY THE STATE OF CAL1FCRNIA. <br /> DEPARTMENT CF^EALTH SER.'::CES AS A=AZARDCUS WASTE TESTING LAECRATORY <br /> . ,Cercaccn No.1c14) . <br /> 8020msw <br /> Suite 112Sc:�,-�;rl�ntd, !'^;=tet- ry'q��2i • (916) 362-8947 • FAX (996) 362-0947 <br />