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' Analytical Laboratory Division <br /> Sparger <br /> Mobile Laboratory Derision <br /> echnogy Inc. Scientific Division <br /> With Automohon in Mind <br /> 1 <br /> 8020 Modified Laboratory Control Spike (LCS) & <br /> 1 Laboratory Control Spike Duplicate (LCSD) BTEX Analysis Report <br /> tttention Mr Jeff Rothgery Date Sampled Mar 19, 1996 <br /> Apex Envirotech, Inc Date Received Mar 21, 1996 <br /> 7844 Madison Ave , Ste 106 Date Requested Apr 17, 1996 <br /> 1 Fair Oaks, CA 95628 Date Analyzed Apr 17, 1996 <br /> Invoice* 6412a <br /> Project ID ERA02 009 Project Name Moore Petroleum <br /> Tient ID LCS/LCSD LAB ID 6412a-LCS <br /> 6412a-LCSD <br /> Iratrix Water Dilution <br /> Conc Sample LCS LCSD LCS % LCSD % % RPD <br /> Name Spike Added Result Result Result Units Recovery Recovery Recovery <br /> Benzene 30 ppb ND 31 29 ug/L 103% 97% 7% <br /> 1 Toluene 30 ppb ND 32 29 ug/L 107% 97% 10% <br /> Ethylbenzene 30 ppb ND 33 28 ug/t_ 110% 93% 16% <br /> 1 Xylenes 30 ppb ND 34 29 ug/L 113% 97% 16% <br /> 'Surrogate % Recovery of Trifluorotoluene= 99% LCS 93% LCSD <br /> ppb=parts per billion=ug/L-micrograms per Liter <br /> ppm-parts per million=ug/mL-miuograms per milliliter <br /> ND=Not Detected Compound(s)maybe present at concentrations betow the detection limit <br /> 1 <br /> Apr 22, 1996 <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 /> (Certrcat cn No 16141 <br /> 1 8020LSCW XLS <br /> C ,_- (9 f 6) 362-89-17 , FAX (916) 362-0917 <br />