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Sequoia 1455 McDowePe alu aoCA 94954 <br /> (707) 792-1865 <br /> ,!D- Analytical FAX(707) 792-0342 <br /> 0 <br /> Cambria Environmental Project Equiva 10d Sampled 12/13/99 to 12/14/99 <br /> 270 Perkins St Project Number 2494 Fremont St,Stockton,Ca Received 12/16/99 <br /> Sonoma,CA 95476 Project Manager Bob Perlowski Reported 114100 <br /> Total-Petroleum Hydrocarbons as Gasoline.and BTEX.by EPA 8015W8020M/Qualaty Conteol� <br /> Sequoia AnalyitcaGYPetalurriaM " <br /> Date Spike Sample QC Reporting Limit Recov RPD RPD <br /> [Aimlyte Anal ed Level Result Result Umts Recov Limits % Limit % Notes* <br /> i <br /> Batch 9120485 Date Prepared 12120_199 Extraction Method EPA 5030 sods <br /> Blank 9120485-BLK1 <br /> Gasoline 12/20/99 ND mg/kg 100 <br /> Benzene ND 000500 <br /> Toluene ND 000500 <br /> Ethylbenzene ND 000500 <br /> Xylenes(total) ND 000500 <br /> Methyl tert-butyl ether ND 00500 <br /> Surrogate a,a,a-Trifluorotoluene 0 600 0 550 650-135 917 <br /> Surrogate 4-Bromofluorobenzene 0 600 0 597 650-135 995 <br /> Blank 9120485-BLK2 <br /> Gasoline 12/21/99 ND mg/kg 100 <br /> Benzene ND 000500 <br /> Toluene ND 000500 <br /> Ethylbenzene ND 000500 <br /> Xylenes(total) ND 000500 <br /> Methyl tert-butyl ether ND 00500 <br /> Surrogate a a a-Trifluorotoluene 0 600 0 571 650-135 952 <br /> Surrogate 4-Bromofluorobenzene 0 600 0 594 650-135 990 <br /> LCS 9120485-BSI <br /> Gasoline 12/20/99 200 1 86 mg/kg _ 65 0-135 _ 930 <br /> Surrogate 4-Bromofluorobenzene 1, 0 600 0 593 It 650-135 988 <br /> LCS 9120485-BS2 <br /> Benzene 12/21/99 0200 0203 mg/kg 650-135 101 <br /> Toluene 0200 0 194 65 0-135 970 <br /> Ethylbenzene 0200 0 188 650-135 940 <br /> Xylenes(total) fl 600 0-577—" 65 0=135=96-2 <br /> Surrogate a,a,a-Trifluorotoluene 0 600 0 589 If650-135 982 <br /> Matnx Spike 9120485-MS1 P912444-10 <br /> Gasoline 12/20/99 2 00 ND 275 mg/kg 650-135 138 <br /> Surrogate 4-Bromofluorobenzene 0 600 0 569 650-135 948 <br /> Matnx S Ike Dup 9120485-MSD1 P912444-10 <br /> Gasoline 12/20/99 200 ND 281 mg/kg 650-135 140 200 144 <br /> Surrogate 4-Bromofluorobenzene - 0 600 0 553 If650-135 922 <br /> Sequoia Analytical-Petaluma *Refer to end of report for text of notes and donitt <br /> Page 9 of 13 <br />