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680 Chesapeake Drive Redwood City,CA 94063 (650)364-9600 FAX(650)364-9233 <br /> Sequoia <br /> 404 N.Wiget Lane Walnut Creek CA 94598 (925)988-9600 FAX(925)988-9673 <br /> 819 Striker Avenue,Suite 8 Sacramento,CA 95834 (916)921-9600 FAX(916)921-0100 <br /> Analytical 1455 McDowell Blvd.North,Ste.D Petaluma,CA 94954 (707)792-1865 FAX(707)792-0342 <br /> Kleinfelder-Stockton Project: N/A Sampled: 1217198 <br /> 2825 East Myrtle Street Project Number: 20-1 108-24.E01 Received: 12/8198 <br /> Stockton,CA 95205 Project/Manager: Tony Martin Reported: 12/28/98, 116/99 <br /> Fuel Fingerprint by DHS LUFT/Quality Control <br /> Sequoia Analytical-Sacramento <br /> Date Spike Sample QC Reporting Limit Recov. RPD RPD <br /> Analyte Analyzed Level Result Result Units Recov. Limits % Limit % Notes* <br /> Bate)/: 8120123 Date Prepared: 12/9198 Extraction Method: EPA 3510B <br /> Blank 8120123-BLK1 <br /> Diesel(C10-C24) 12/10/98 ND mg/l 0.0500 <br /> Unidentified Extractable Hydrocarbons ND 0.100 <br /> Surrogate: Pentacosane 0.0400 0.0348 50.0-150 87.0 <br /> L-S 2 3- <br /> Diesel(C10-C24) 12/10/98 1.00 0.616 mg/t 60.0-140 61.6 <br /> Surrogate: Pentacosane 11 0.0400 0.0382 50.0-150 95.5 <br /> LC5 DuoDuo 8120123-BSD1 <br /> Diesel(C10-C24) 12/10/98 1.00 0.732 mgll 60.0-140 73.2 50.0 17.2 <br /> Surrogate: Pentacosane 0.0400 0.0448 50.0-150 112 <br /> Dg/_ 3120209 Date Prepared: 12/14/98 Extraction Method: EPA 3510B <br /> $1a� 8120209-BLKI <br /> Diesel(C10-C24) 12/17/98 ND mg/l 0.0500 <br /> SS114(C10-C40) ND 2.50 <br /> SC-250(Cl2-C36) ND 0.100 <br /> Unidentified Extractable Hydrocarbons ND 0.100 <br /> { Surrogate: Pentacosane 0.0400 0.0426 50.0-150 106 <br /> IES 8120209-BSI <br /> Diesel(C10-C24) 12/17/98 1.00 0.710 mg/l 60.0-140 71.0 <br /> Surrogate: Pentacosane 0.0400 0.0404 50.0-150 101 <br /> I,CS DunDun 8120209-BSD1 <br /> Diesel(C10-C24) 12/17/98 1.00 0.821 mgll 60.0-140 82.1 50.0 14.5 <br /> Surrogate: Pentacosane 0.0400 0.0482 50.0-150 121 <br /> Sequoia Analytical-Sacramento *Refer to end of report for text ofnotes and definitions. <br /> Linda C.Schneider,Laboratory Director Page 6 of 8 <br />