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�1 Y <br /> 819 Striker Avenue Suite 8 <br /> Sequoia Sacramento C95834 <br /> (916)922 1-9600 <br /> FAX (916)921-0100 <br /> Analytical www sequoialabs corn <br /> SECOR Intt_rnational- Rancho Cordova Pwjcc t ARCO 595 Stockton CA <br /> 3017 Kilgore Road Sum, 100 Project dumber NIA Reported <br /> Rancho Cordova CA 95670 Project Manager Rusty Benkosky 05/24/01 09 30 <br /> Total Purgeable Hydrocarbons (C6-C12), BTEX and MTBE by DHS LUFT - Quality Control <br /> Sequoia Analytical - Sacramento <br /> Reporting Spil.c Source %REC RPD <br /> Analu� Result Limit Units L«Ll Rcsult %RI-C Limits RPD Limit Notes <br /> Batch 1050194- EPA 5030B (P/T) <br /> Blank(1050194-BLK1) PruparLd&.Analyzed 05/14/01 <br /> Purgeable 11,,droi.arbons ND 50 0 ug/I <br /> Benzene ND 0 500 " <br /> Toluene ND 0 500 <br /> Ethylbenzene ND 0 500 <br /> Xylenes(total) ND 0 500 " <br /> Methyl Cert-bulyl ether ND 2 �0 <br /> Surrogate a a a-Trifluorotohienc 9.57 100 957 60-140 <br /> LCS(105.0.1_9_4_-BSI) __ _ _ Prepared&Analyzed 05/14/01_ <br /> Benzene 863 0 500 ug/l 100 863 70-130 <br /> Toluene 10 l 0 500 100 101 70-130 <br /> Wenzene 10 R 0 500 100 108 70-130 <br /> lbnes(total) 320 0 500 300 107 70-130 <br /> Methyl tert-butyl ether 783 2 50 100 78 3 70-130 <br /> Surrogate a a a-Triuorotoluene 9-8too 98 4 60-140 u4 <br /> Matrix Spike--(-1050194-MS-1) __ Source 5105123_-_05 Prepared&Analyzed 05/14/01 <br /> Benzene — 843 0 500 ug/I 100 ND 843 60-140 <br /> Toluene 994 0 500 100 ND 994 60-140 <br /> Ethylbenzene log 0 500 100 ND 108 60-140 <br /> Xyl-nes(total) 31 9 0 500 300 ND 106 60-140 <br /> Methyl tent-butyl ether 828 2 50 " 100 ND 828 60-140 <br /> Surrogate a a a-Trifluorotoluene 916 100 916 60-140 <br /> Matrix Spike D_up(_1_05019.4-MSDI) Source_ S10512.3-05 Prepared&Analyzed 05/14/01 <br /> Benzene 8 87 0 500 ug/I too ND 88 7 60-140 509 25 <br /> Toluene 10 5 0 500 100 ND 105 60-140 548 25 <br /> Ethylbenzene 1 1 4 0 500 too ND 114 60-140 541 25 <br /> Xylenes(total) 33 6 0 500 300 ND 112 60-140 5 19 25 <br /> Methyl tert-butyl ether 860 250 100 ND 860 60-140 3 79 25 <br /> Surrogate a a a-Tris luorotoluene 9 10 T 100 910 60-140 <br /> uola Analytical- Sacramento The results in this report apply to the samples analyred in accordance with the chain of <br /> custody document This analytical report must be reproduced in its enarery <br /> Page 7 of 1 <br /> r��i <br />