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Spargero Analytical Laboratory Dmsion <br /> Mobile Laboratory Dnrislon <br /> Technok)gylr)c 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 Jeff Rothgery Date Sampled Sep 10, 1996 <br /> Apex Envirotech, Inc Date Received Sep 10, 1996 <br /> 7844 Madison Ave, Ste 106 Date Analyzed Sep 13, 1996 <br /> Fair Oaks, CA 95628 Invoice# 6969 <br /> Project ID ERA02 009 Project Name Moore Petroleum <br /> Client ID LCS/LCSD LAB ID 6969-LCS <br /> 6969-LCSD <br /> Matrix Water Dilution <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 30 28 ugll 100% 93% 7% 20 65-135 <br /> Toluene 30 ND 31 28 ugll 103% 93% 10% 20 65-135 <br /> Ethylbenzene 30 ND 31 28 ugll 103% 93% 10% 20 65-135 <br /> m,p-Xylenes 60 ND 64 56 ug/l 107% 93% 13% 20 65-135 <br /> Surrogate% Recovery of Trifluorotoluene= 86% LCS 83% LCSD <br /> ppb=parts per billion=ugtl=micrograms per titer <br /> ppm=parts per million=ug/ml=micrograms per milliliter <br /> ND a Not Detected Compound(s)may be present at concentrabons below the detection limit <br /> Sep 20, 1996 <br /> C Chapman ec Supervisor 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 /> ;61"0 Fire C✓ rcie �)inrt- ' 12 0-Mroa-wo 05,927 n (916) 362-8947 e FAX (976) 362-00.11 <br />