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Spargero -C <br /> Analytical Laboratory Division <br /> - - Mobile Laboratory Division <br /> ;fechnoloy,nc. Scientific Division <br /> g <br /> - ,utior, 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: Apr 29, 1997 <br /> Apex Envirotech, Inc. Date Received: May 1, 1997 <br /> 7844 Madison Ave., Ste. 106 Date Analyzed: May 13, 1997 <br /> Fair Oaks, CA 95628 Invoice#: 7718 <br /> Project ID: ERA02.004 Project Name: Moore Petroleum <br /> Client ID: LCS/LCSD LAB ID: 7718-LCS <br /> 7718-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 /> Ethylbenzene 30 ND 35 31 ug/I 117% 103% 12% 20 65-135 <br /> m,p-Xylenes 60 ND 69 64 ug/I 115% 107% 8% 20 65-135 <br /> o-Xylenes 30 ND 35 32 ug/l 117% 107% 9% 20 65-135 <br /> Surrogate % Recovery of Trifluorotoluene = 98% LCS <br /> ppo=parts per billion=ugA=micrograms per liter <br /> ppm=parts per million=uVmI=micrograms per milliliter <br /> ND=Not Detected. Compounds)maybe present at concentraticrs teiva the ceteCion limit. <br /> i <br /> May 19, 1997 <br /> R. L. James. Principal Chemist Date Reported <br /> SPARGER TECHNOLCGY AJI`.LY iCAL L-.BORAT 0RV .:C.IS CERTIFIED BY THE STATE OF CALIFORNIA <br /> DEPARTMENT OF HEAT-SER`i!CES AS A H.A7--.RGOLIS PiASTE TESTING LABORATORY <br /> 80201csw <br /> 'i 12 + �r.cam y -�, '�� -";- • (916) 362-8947 FAX (916) 362-0947 <br />