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1 O 819 Striker Avenue Suite S <br /> Sequoia Sacramento +92 95834 <br /> 4 4D (9/6)921-9600 <br /> 1 Analytical FAX cluo16)921-01i <br /> www sequoiala6s cornm <br /> 0 <br /> ' D K Barber PE&Associates Project Western Oil&Spread-Acampo 5306166 <br /> 623 Camellia Way Project Number N/A Reported <br /> Lodi CA,95242 Project Manager Dan Barber 06/23/03 17 07 <br /> ' BTEX by DHS LUFT -Quality Control <br /> Sequoia Analytical- Sacramento <br /> Reporting Spike Source %REC RPD <br /> Analyte Result Limit Units Level Result %REC larnits RPD Limit Notes <br /> 1 Batch 3060232-EPA 5030B P <br /> Blank(3060232-BLKI) Prepared&Analyzed 06/16/03 _ <br /> Benzene ND 050 ugll <br /> 'Toluene ND 050 <br /> Ethylbenzene ND 050 <br /> Xylenes(total) ND 050 " <br /> Surrogate a a a-Trifluorotoluene 818 100 82 60-140 <br /> Blank(3060232-BLK2) Prepared&Analyzed 06/17/03 <br /> Benzene ND 050 ug/l <br /> Toluene ND 050 <br /> Ethylbenzene ND 050 <br /> Xylenes(total) ND 050 " <br /> Wa a a-Trsfluorotoluene 793 100 79 60-I40060232-BL_K3) _ Prepared&Analyzed. 06/18/03 <br /> Benzene ND 050 ug/l <br /> Toluene ND 050 " <br /> Ethylbenzene ND 050 " <br /> Xylenes(total) ND 050 " <br /> Surrogate a a a-Trsfluorotoluene 777 100 78 60-140 <br /> Laboratory P Control Sample 3060232-BSI) Prepared&Analyzed 06/16/03 <br /> Benzene 989 050 ugA 100 99 70-130 <br /> Toluene 104 050 100 104 70-130 <br /> Ethyibenzene 103 050 100 103 70-130 <br /> Xylenes(total) 308 050 300 103 70-130 <br /> 1 Surrogate a a a-Trifluorotoluene 928 100 93 60-140 <br /> Laboratory Control Sample(3060232-BS2) Prepared&Analyzed 06/17/03 <br /> Benzene 956 050 ug/I 100 96 70430 <br /> Toluene 989 050 100 99 70430 <br /> Ethylbenzene 9 83 050 100 98 70-130 <br /> Xylenes(total) 294 050 300 98 70-130 <br /> Surrogate a a a-Trsfluorotoluene 880 100 88 60-140 <br /> iWt—aAnalytical-Sacramento The results in this repon apply to the samples analyzed in accordance with the chain of <br /> custody document This analytical report must be reproduced in its enttrety <br /> Page 7 of 9 <br />