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Spargero Analytical Laboratory Division <br /> Mobile Laboratory Division TechnologyIncScientific <br /> With Automation rn 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 Nov 27, 1996 <br /> Apex Envirotech, Inc Date Received Nov 29, 1996 <br /> 7844 Madison Ave , Ste 106 Date Analyzed Dec 2, 1996 <br /> Fair Oaks, CA 95628 Invoice# 7247 <br /> Project ID ERA02 009 Project Name Moore Petroleum <br /> Client ID LCS/LCSD LAB ID, 7247-LCS <br /> 7247-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 /> qw <br /> Benzene 30 ND 34 35 ug/l 113% 117% 3% 20 65-135 <br /> Toluene 30 ND 33 33 ugll 110% 110% 0% 20 65-135 <br /> Ethylbenzene 30 ND 34 34 ugll 113% 113%' 0% 20 65-135 <br /> m,p-Xylenes 60 ND 70 69 ugll 117% 195% 1% 20 65-135 <br /> Surrogate % Recovery of Trifluorotoluene= 102% LCS 104% LCSD <br /> ppb=parts per bit wn=ugA=micrograms per Inter <br /> ppm=parts per million=ug/ml=m icrograms per milliliter <br /> ND=Not Detected Compound(s)may be present at concentrations below the detection Itmit <br /> Dec 9, 1996 <br /> C Chapman,G Manager 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 IABOI ATORY <br /> (Certficatwn No 1614) <br /> 802OLCSW XLS <br /> 3050 Fite Circle Suite 112 • Socromento Californro 95827 - (996) 362-8947 • FAX(916) 362-0947 <br />