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819 Striker Avenue Suite 8 <br /> ® <br /> Sequoia Sacramento CA 95834 <br /> (916)421-9600 <br /> FAX 921-0 00 <br /> Analytical www sequolalabscom <br /> IT Corporation-Sacramento Project Don Rogers ' <br /> 1326N Market Blvd Project Number 880039 IA/01050000 Reported <br /> Sacramento CA,95834 Project Manager Tim Anenson 09/27/01 14 53 <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 1090264 -EPA 5030B (P/T) <br /> Blank(_1090264-BLK1) _ Prepared&Analyzed 09/2l/01 <br /> Purgeable Hydrocarbons ND 50 ugll <br /> Benzene ND 050 " <br /> Toluene ND 0 50 <br /> Ethylbenzene ND 050 " <br /> Xylenes(total) ND 0 50 " <br /> Methyl tert-butyl ether ND 2 5 " <br /> Surrogate a a a-Triuorotoluene 115 100 115 60-140 <br /> LCS(1090264-BSI) Prepared&Analyzed 09/21/01 ' <br /> Benzene 113 050 ugll 100 113 70-130 <br /> Toluene 104 050 100 104 70-130 <br /> Ethylbenzene 102 0 50 100 102 70-130 . <br /> Xylenes(total) 318 0 50 n 300 106 70-130 <br /> Methyl cert-butyl ether 116 2 5 10 0 116 70-130 <br /> Surrogate a a a-Trti luorotoluene 13 7 100 137 60-140 <br /> Matrix Spike(1090264-MS1) Source 5109277-01 Prepared&Analyzed 09/21/01 <br /> Benzene 1 1 0 050 ug/! NO 1 4 960 60-140 <br /> Toluene 103 050 100 2 3 goo 60-140 ' <br /> Ethylbenzene 101 050 " WO ND 101 60-140 <br /> Xylenes(total) 297 050 300 25 907 60-140 <br /> Methyl tert-butyl ether 171 2 5 WO 53 118 60-140 <br /> Surrogate a a a-Tris luorotoluene 129 100 129 60-140 <br /> Matrix Spike Dup(1090264-MSD1) Source S109277-01 Prepared&Analyzed 09/21/01 <br /> Benzene 11 1 n 511 11.11 inn 14 97 n 60-140 0 905 25 <br /> Toluene 106 050 100 2 3 83 0 60-140 287 25 <br /> Ethylbenzene 105 050 100 ND 105 60-140 388 25 <br /> Xylenes(total) 32 1 050 300 25 98 7 60-140 7 77 25 <br /> Methyl tert-butyl ether 175 2 5 100 5 3 122 60-140 231 25 <br /> Surrogate a a a-Trti luorotoluene 12 4 100 124 60-140 <br /> Sequoia Analytical - Sacramento The results in this report apply to the samples analyzed in accordance with the sham o <br /> custody document This analytical report must be reproduced in its entirety 10 <br /> Page 3 of 5 <br />