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. 1 <br /> SpargeroAnalytical Laboratory Yt Division <br /> Technology,.. Mobile laboratory Division <br /> Scientific Division <br /> With Automation 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: Apr 30, 1998 <br /> Apex Envirotech, Inc. Date Received: May 1, 1998 <br /> 7844 Madison Ave. Ste. 106 Date Analyzed: May 4, 1998 <br /> Fair Oaks, CA 95628 Invoice#: 9450MAY98 <br /> Project ID: ERA02.004 Project Name: Moore Petroleum <br /> Client ID: LCS/LCSD LAB ID: 9450-LCS <br /> 9450-LCSD <br /> Matrix: Water Dilution 1: 1 <br /> Spike Sample LCS LCSD LCS % LCSD % % RPD QC Limits <br /> Analyte Added Conc. Result Result Units Recovery Recovery Recovery RPD %Rec <br /> Benzene 30 ND 31 33 ugll 103% 110% 6% 20 65-135 <br /> Toluene 30 ND 30 32 ugll 100% 107% 6% 20 65-135 <br /> Ethylbenzene 30 - ND 29 31 ugll 97% 103% 7% 20 65-135 <br /> m,p-Xylenes 60 ND 56 59 ugll 93% 98% 5% 20 65-135 <br /> o-Xylenes 30 ND 30 32 ug/1 100% 107% 6% 20 65-135 <br /> Surrogate % Recovery of Trifluorotoluene = 96% LCS 98% LCSD <br /> ppb=parts per billion=ugA=micrograms per liter <br /> ppm=parts per million=ug/ml=micrograms per milliliter <br /> NO=Not Detected. Compounds may be present a !rations bet the detection limit <br /> May 8, 1998 <br /> TL J Principal Chemist Date Reported <br /> SPARGER TECHNOLOGY ANALYTICAL LABORATORY,INC.IS CERTIFIED BY THE STATE OF CALIFORNIA <br /> DEPARTMENT OF HEALTH SERVICES AS A HAZARDOUS WASTE TESTING LABORATORY <br /> (Certification No.1614) <br /> 8020LCSW.xls <br /> 3050 Fite Circle, Suite 112 • Sacramento, Colifornio 95827 • (996) 362-8947 • FAX(996) 362-0947 <br />