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Sequoia 1455 McDowell Blvd. North,Ste. D <br /> Petaluma,CA 94954 <br /> (707) 792-1865 <br /> Analytical <br /> FAX(707) 792-0342 <br /> Cambria Environmental Project: Shell Oil Co. Sampled: 9/29/99 <br /> 270 Perkins St. Project Number: 440 Charter,Stockton Received: 9/29/99 <br /> Sonoma,CA 95476 Project Manager: Tom Magney Reported: 10/11/99 <br /> Total Petroleum Hydrocarbons as Diesel& others by EPA 8015M/Quality Control <br /> Sequoia Analytical-Petaluma <br /> Date Spike Sample QC Reporting Limit Recov. RPD RPD <br /> Analyte Analyzed Level Result Result Units Recov. Limits % Limit % Notes* <br /> Batch: 9100011 Date Prepared: 10/1/99 Extraction Method: CA LUFT-orh shaker <br /> Blank 9100011-BLK1 <br /> Diesel(CIO-C24) 10/7/99 _ _ ND mg/kg 5.00 <br /> Surrogate: o-Terphenyl 3.33 3.39 50.0-150 101 <br /> LCS 9100011-BSI <br /> Diesel(CIO-C24) 10/7/99 33.3 30.2 mg/kg _ 50.0-150 90.7 <br /> Surrogate: o-Terphenyl 3.33 3.16 50.0-150 94.9 <br /> Matrix Spike 9100011-MSI P909620-64 <br /> Diesel(C I O-C24) I0/7/99 33.3 5.U1 37.7 m- k- 50.0-150 98.2 <br /> Surrogate: o-Terphenyl 3.33 3.11 50.0-150 96.4 <br /> Matrix Spike Dup 9100011-MSDI P909620-64 <br /> Diesel(C I O-C24) _ 10/7/99 _ 33.3_ 5.01 312.1 mg/kg 50.0-150 81.4 35.0 18.7 <br /> Surrogate: o-Terphenyl 3.33 1.80 50.0-150 84.1 <br /> Sequoia Analytical-Petaluma *Refer to end of report for text of notes and dejiniflons. <br /> Page 8 of 11 <br /> r�.� <br />