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Y <br /> Spargero Analytical Laboratory Di rislon <br /> Mobile Laboratory Drnsion�echnoloJyInc <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 Jeffrey Rothgery Date Sampled May 29, 1997 <br /> Apex Envirotech, Inc Date Received May 30, 1997 <br /> 7844 Madison Ave , Ste 106 Date Analyzed Jun 3, 1997 <br /> Fair Oaks, CA 95628 Invoice# 7855 <br /> Project ID ERA02 009 Project Name Moore Petroleum <br /> Client ID LCS/LCSD LAB ID 7855-LCS <br /> 7855-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 %Rec <br /> Benzene 30 ND 23 25 ugll 77% 83% 8% 20 65-135 <br /> Toluene 30 ND 24 25 ug/1 80% 83% 4% 20 65--135 <br /> Ethylbenzene 30 ND 24 24 ugll 80% 80% 0% 20 65-135 <br /> m,p-Xylenes 60 ND 46 46 ugll 77% 77% 0% 20 65-135 <br /> o-Xylenes 30 ND 24 24 ug/l 80% 80% 0% 20 65-135 <br /> Surrogate % Recovery of Trifluorotoluene= 99% LCS. 102% LCSD <br /> ppb=parts per billmn=ugll=micrograms per Ner <br /> ppm=parts per million=ug/ml=micrograms per milliliter <br /> ND=Not Defected Compound(s)maybe present at concen"bons below the detection limit <br /> Jun 9, 1997 <br /> R L 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 /> (Cartr(icatian No 1614) <br /> 80201csW <br /> 3050 Fite Circle Suite 112 • Sacramento California 95827 • (916) 362-8947 • FAX(916) ,362-0947 <br />