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819 Striker Avenue Suite 8 <br /> Sequoia Sactamc(91 )9 95834 <br /> %W(i) <br /> (9!6)921-9�i00 <br /> 1w Analytical FAX equoi 92 1 labs c 00 <br /> www scgtioialabs tom <br /> SECOR International-Rancho Cordova Protect Arco 6020,Manteca,CA <br /> 3017 Kilgore Road,Suite 100 Project Number NIA Reported <br /> Rancho Cordova CA,95670 Project]Manager Rusty Benkosky 09/25/01 15 07 <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 1090172-EPA 5030B(PIT) <br /> Blank(1090172 BLKI) v- Preared&Analyzed 09/17/01 <br /> Purgeable Hydrocarbons ND 50 ug/I <br /> Benzene ND 0 5o " <br /> Toluene ND 050 " <br /> Ethylbenzene ND 050 " <br /> Xylenes(total) ND 0 50 " <br /> Methyl tert-butyl ether ND 2 5 " <br /> Surrogate a a a-Trifluorotoluene 105 100 105 60-140 <br /> LCS(1090172-BSI) Prepared&Analyzed 09/17/01 <br /> _ Benzene 11 1 050 ug/1 10 0 111 70-130 <br /> Toluene 102 0 50 100 102 70-130 <br /> Ethylbenzene 9 93 0 50 too - 993 70-130 ` <br /> Xylenes(total) - 306 050 30 0 102 70-130 <br /> Methyl tert-butyl ether 107 2 5 too 107 70-130 <br /> Surrogate a a a-Trifluorotoluene 122 " 100 122 60-140 <br /> Matrix Spike 1090172-MS1 Source S109205-01 Prepared&Analyzed 09/17/01 <br /> Benzene 10 6-0 50---ug/l- 10 0-0 50--101 ._._60-140 <br /> -- Toluene 9 89 0 50 10 4 ND 98 9_60-140 <br /> Ethylbenzene 942 050 100 ND 942 60-140 <br /> -Xylenes(total) ---- —286— -050- -----300ND--953-60-140-------- <br /> Methyl <br /> D---953=60_140________Methyl tent-butyl ether 129 2 5 10 0 ND 129 60-140 <br /> Surrogate a a a-Traiuorotoluene _ 10 1 Io0 101 _ -;60-140'---� -- — <br /> Matrix Spike Dup(1090172-MSDI) Source S109205-01 Prepared 09/17/01 Anal 09/18/01 <br /> Benzene 102 0 50 119/1 100 0 50 970 60-140 3 85 25 <br /> Toluene 9 43 0 50 t0 0 ND 943 60-140 476 25 <br /> Ethylbenzene t 9 10 050 10 0 ND 91 0 60-140 346 25 <br /> Xylenes(total) 287 050 300 ND 95 7 60-140 0 349 25 <br /> Methyl tert-butyl ether 11 1 2 5 100 ND 111 60-140 15 0 25 <br /> Surrogate a a a-Trifluorotoluene 101 100 101 60-140 <br /> Sequoia Analytical-Sacramento The results in this report apply to the samples analyzed in accordance with rhe chain <br /> of custody document Thns analytical report must be reproduced in its entirety• <br /> Page Page 7 of 9 <br />