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1 <br /> Sparger - Analytical Laboratory Division <br /> • <br /> TbichnologyInc Mobile Laboratory Division <br /> Scientific Division <br /> ',th --clFcmarron ,i ' and <br /> EPA Method 8020 <br /> Modified Laboratory Control Spike (LCS) & <br /> Laboratory Control Spike Duplicate (LCSD) BTEX Analysis Report <br /> Attention Mr Claudio Avila Date Sampled May 19, 1997 <br /> EMCON Date Received May 20, 1997 <br /> 1433 N Market Blvd Date Analyzed May 23, 1997 <br /> Sacramento, CA 95634 Invoice# 7815 <br /> Project ID 22613-100 001 Project Name Don Rogers <br /> Client ID LCS/LCSD LAB ID 7815-LCS <br /> 7815-LCSD <br /> Matrix Water Dilution 1 1 <br /> Spike Sample LCS LCSD LCS % LCSD % % RPD QC Limits <br /> Name Added Conc Result Result Units Recovery Recovery Recovery RPD %oRec <br /> i <br /> Benzene 30 ND 28 30 ug/1 93% 100% 7% 20 65-135 <br /> Toluene 30 ND 28 28 ug/I 93% 93% 0% 20 65-135 <br /> Ethylbenzene 30 ND 28 27 ug/I 93% 90% 4% 20 65-135 <br /> m,p-Xylenes 60 ND 56 56 ug/l 93% 93% 0% 20 65-135 <br /> o-Xylenes 30 ND 27 26 ug/I 90% 87% 4% 20 65-135 <br /> Surrogate % Recovery of Tnfluorotoluene = 89% LCS 90% LCSD <br /> ppb-parts per billion a ugll=m=ograms per liter <br /> ppm=parts per million-ug/ml-micrograms per milliliter <br /> ND=Not Detected COmpound(s)maY be present at Concentrations below the detection limit <br /> May 27, 1997 <br /> James 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 /> 80201csw <br /> (096) -162-8947 > `AX (916) 342-0947 <br />