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d North.Ste D <br /> Sequoia 1455 McDowell <br /> Pe Petaluma,a,CA 94954 <br /> 1 (707) 792-1865 <br /> Analytical FAX(707) 792-0342 <br /> Cambria Environmental Project Equiva 10d Sampled 12/14/99 to 12/15/99 <br /> 270 Perkins St Project Number 2494 Fremont St,Stockton Ca Received 12/16/99 <br /> Sonoma,CA 95476 Project Manager Bob Perlowski Reported 12/30/99 <br /> Total Petroleum Hydrocarbons as-Gasoline and TEXT hyj EPA 8015W8020MlQuality"'Control <br /> Seq�ioia>Ana y i at-Petaluma <br /> Date Spike Sample QC Reporting Linut Recov RPD RPD <br /> Analyte Analyzed Level Result Result Units Recov Limits % Limit % Notes* <br /> Batch 9120399 Date Prepared 12/16/99 Extraction Method EPA 5030 soils McOH <br /> Blank 9120399-BLK1 <br /> Gasoline 12/17/99 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 tert-butyl ether ND 250 <br /> Surrogate a a a-Tris luorotoluene 300 326 650-135 109 <br /> Surrogate 4-Bromofluorobenzene 300 31 7 650-135 106 <br /> Blank 9120399-BLK2 <br /> Gasoline 12/20/99 ND mg/kg 500 <br /> Benzene ND 0 250 <br /> e" ND 0 250 <br /> ND 0 250 <br /> $Ib,,nzene <br /> nes(total) ND 0 250 <br /> Methyl tent-butyl ether ND 250 <br /> Surrogate a,a,a-Trifluorotoluene 300 287 650-135 957 <br /> Surrogate 4-Bromofluorobenzene 300 288 650-135 960 <br /> LCS 9120399-BSI <br /> Gasoline 12/17/99 100 994 mg/kg 650-135 994 <br /> Surrogate 4-Bromofluorobenzene 300 302 650-135 101 <br /> LCS 9120399-BS2 <br /> Gasoline 12/20/99 100 999 mg/kg 65 0-135 999 <br /> Surrogate 4-Bromofluorobenzene rF300 307 to650-135 102 <br /> _Matrix Spike 9120399-MSI P912351-04 <br /> Gasoline 12/17/99 100 599 678 mg/kg 65 0-135 790 2,3 <br /> Surrogate 4-Bromofluorobenzene rr300 471 650-135 157 4 <br /> Matrix Spike Dap 9120399-MSDI P912351-04 <br /> Gasoline ID 17/99 100 599 647 mg/kg 650-135 480 200 488 2,3 <br /> Surrogate 4-Bromofluorobenzene " 300 43 9 11650-135 146 4 <br /> Batch- 9120486 Date Prepared 12/20/99 Extraction Metbod EPA 5030 soils <br /> Blank 9120486-BLKl <br /> Gasoline 12/20/99 ND mg/kg 100 <br /> Benzene ND 000500 <br /> TQJuene ND 000500 <br /> uoia Analytical-Petaluma *Refer to end of report for text ofnotes and definitions <br /> Page 6 of 10 <br />