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16Spargero Analytical Laboratory Division <br /> Mobile Laboratory Dmsion <br /> gTechnolo y Inc. Scientific Division <br /> With Automotion in Mind <br /> EPA Method 8020 <br /> ' Modified Matrix Spike (MS) & Matrix Spike Duplicate (MSD) <br /> BTEX Analysis Report <br /> 'Attention Mr Jeff Rothgery Date Sampled May 16, 1996 <br /> Apex Envirotech, Inc Date Received May 16, 1996 <br /> ' 7844 Madison Ave . Ste 106 Date Analyzed May 17, 1996 <br /> Pair Oaks, CA 95628 Invoice# 6617 <br /> ' Project ID ERA02 009 Project Name Moore Petroleum <br /> Client ID MS/MSD (BATCH) LAB ID 6618-003MS <br /> ' Matrix Water Dilution 6618-003MSD <br /> Conc Sample MS MSD MS % MSD % % RPD <br /> Name Spike Added Result Result Resuit Units RecoveryRecovery Recovery <br /> ' Benzene 30 ND 29 28 ugll 97% 93% 4% <br /> Toluene 30 ND 30 29 ugll 100% 97% 3% <br /> ' Ethyibenzene 30 ND 30 29 ug/1 100% 97% 3% <br /> m,p-Xylenes 60 ND 59 57 ugtl 98% 95% 3% <br /> 1 <br /> ' Surrogate % Recovery of Trifluorotoluene= 78% MS 76% MSD <br /> ppb-parts per billion=ugll=micrograms per liter <br /> ppm-parts per million=ug/ml=mivograms per milliliter <br /> ' ND-Not Detected Compound(s)maybe present et concentmilons below the detection lung <br /> May 30, 1996 <br /> ' R L James,Principal Chemist Date Reported <br /> SPARGER TECHNOLOGY ANALYTICAL LABORATORY INC 1S CERTIFIED BY THE STATE OF CALIFORNIA <br /> DEPARTMENT OF HEALTH SERVICES AS A HAZARDOUS WASTE TESTING LABORATORY <br /> (Certification No 1614) <br /> 802OMSW XLS <br /> 1�+ Q',N97 ri L04 1 1A0AQ-47 A CAV 104AN QAQ nnAi <br />