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819 Striker Avenue,Suite 8 <br /> Sequoia Sacramento CA 95834 <br /> (916)921-9600 <br /> FAX <br /> Analyte cel (916)921-0100 <br /> www scqucialabs com <br /> Iratus Envlronmental Project Arco 2130,Stockton, CA <br /> 30 Cameron Park Drive,Ste 550 Project Number 2130, Stockton,CA Reported <br /> ameron Park CA,95682 ProjectManager Jay Johnson 06/25/02 13 58 <br /> Total Purgeable Hydrocarbon, BTEX and MTBE by DHS LUFT - Quality Control <br /> Sequoia Analytical - Sacramento <br /> Reporting Spike Source %REC RPD <br /> Analyte Result Limit Units Level Result %REC Limits RPD Limit Notes <br /> Batch 2060262-EPA 5030E (PIT) <br /> Blank(2060262-BLKI) Prepared&Analyzed 06/20/02 <br /> Purgeable Hydrocarbons ND 50 ug/1 <br /> Benzene ND 050 " <br /> Toluene ND 050 " <br /> Ethylbenzene ND 050 " <br /> Xylenes(total) ND 050 " <br /> Methyl tert-butyl ether ND 25 " <br /> Surrogate a a a Trifluorotoluene 997 100 100 60-140 <br /> LCS(2060262-BS1) Prepared&Analyzed 06/20/02 <br /> Benzene 938 050 ug/l 100 94 70-130 <br /> Toluene 984 050 100 98 70-130 <br /> Ethylbenzene 975 050 100 98 70-130 <br /> le (total) 301 050 300 100 70-130 <br /> yl tert-butyl ether 10 2 2 5 100 102 70-130 <br /> Surrogate a a a-Trifluorotoluene 101 100 101 60-140 <br /> Matrix Spike(2060262-MS1) Source S206223-07 Prepared&Analyzed 06/20/02 <br /> Benzene 9 52 050 ug/l 100 ND 95 60-140 <br /> Toluene 994 050 100 ND 99 60-140 <br /> Ethylbenzene 976 050 100 ND 98 60-140 <br /> Xylenes(total) 303 0 50 300 ND 101 60-140 <br /> Methyl tert-butyl ether 119 25 100 ND 117 60-140 <br /> Surrogate a a a-Trifluorotoluene 9 79 100 98 60-140 <br /> Matrix Spike Dup(2060262-MSDI) Source 5206223-07 Prepared&Analyzed 06/20/02 T <br /> Benzene 101 050 ug/l 100 ND 101 60-140 6 25 <br /> Toluene 10 6 0 50 100 ND 106 60-140 6 25 <br /> Ethylbenzene 102 050 100 ND 102 60-140 4 25 <br /> Xylenes(total) 31 3 050 300 ND 104 60-140 3 25 <br /> Methyl tert-butyl ether 12 3 2 5 100 ND 121 60-140 3 25 <br /> Surrogate a a a-Trifluorotoluene 103 100 103 60-140 <br /> r <br /> uola Analytical- Sacramento The results in this report apply to the samples analyzed in accordance with the chain of <br /> custody document This analytical report must he reproduced in its entirety <br /> Page Page 7 of 10 <br />