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1455 McDowell Blvd North,Ste D <br /> 4 4D Sequoia Petaluma CA 94954 <br /> (707)792-1865 <br /> FAX{707} 792-0342 <br /> Analytical www sequolalabs coni <br /> Cambria Environmental Project Equiva Sampled 5123/00 to 5125/00 <br /> 270 Perkins St Project Number 6131 Pacific Ave,Stockton Received 5/26/00 <br /> Sonoma,CA 95476 Project Manager Aubrey Cool Reported 6/6/00 <br /> Total`PetroteulinHydrocar'lsoiis as�'Gasotine and BTEX 6y`Vrk8OI5MI8020M/Qetalir"y'Conlrol <br /> Sequoia AnalyftcaI-Petaluma <br /> Date Spike Sample QC Reporting Limit Recov RPD RPD <br /> lAnalyte Analyzed Level Result Result Units Recov Limits % Lirmt % Notes* <br /> Batch 0050687 Date Prepared: 5131/00 Extraction Method EPA 5030 soils Me4H <br /> Blank 0050687-BLK3 <br /> Gasoline 6/I/00 ND mg/kg 500 <br /> Benzene ND 0 250 <br /> Toluene ND 0 250 <br /> Ethylbenzene ND 0 250 <br /> Xylenes(total) ND 0 250 <br /> Methyl tent-butyl ether ND 2 50 <br /> Surrogate a,a,a-Trifluorotoluene 300 306 650-135 102 <br /> Surrogate 4-Bromofluorobenzene 300 270 650-135 900 <br /> LCS 0050687-BS3 <br /> Gasoline 6/l/00 100 96 8 mg/kg 650-135 968 <br /> Surrogate 4-Bromofluorobenzene 300 283 650-135 943 <br /> 5 ike 0050687-MSI P005465-06 <br /> ne 5/27100 100 2820 1890 mg/kg 650-135 -930 3 <br /> Surrogate 4-Bromofluorobenzene 300 630 650-135 210 1 <br /> Matrix Spike Dnp 0050687-MSDI P005465-06 <br /> Gasoline 5127/00 100 2820 2880 mg/kg 650-135 600 200 -228 3 <br /> Surrogate 4-Bromofluorobenzene a 300 45 7 " 650-135 152 1 <br /> Batch 0050779 Date Prepared 5/31/00 Extraction Method EPA 5030 soils <br /> Blank 0050779-BLK 1 <br /> Gasoline 5/31/00 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-Trnfluorotoluene " 0 600 0 609 650-135 102 <br /> Surrogate 4-Bromofluorobenzene 0 600 0 532 650-135 88 7 <br /> Blank 0050779-BLK2 <br /> Gasoline 6/2/00 ND mg/kg 100 <br /> Benzene ND 000500 <br /> Toluene ND pe 000500 <br /> Ethylbenzene ND 000500 <br /> Xylenes(total) ND 000500 <br /> Methyl tert-butyl ether ND 00500 <br /> Surrogate a,a,a-Trtuorotoluene 0 600 0 601 <br /> 650-135 100 <br /> S4W Analytical-Petaluma 'Refer to end of report for text of notes and definitions <br /> Page 12 of 17 <br />