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Sequoia 680 Chesapeake Drive Redwood City,CA 94063 (650)364-9600 FAX(650)364-9233 <br /> 404 N.Wlget Lane Walnut Creek.CA 94598 (925)988-9604 FAX(915)988-9673 <br /> Analytical 819 Striker Avenue,Suite$ Sacramento,CA 95834' `916}921-9600 FAX(916)911-0140 <br /> 1455 McDowell Blvd.North,Ste.D Petaluma.CA 94954 (707)792-1865 FAX(707)792-0342 <br /> Kleinfelder-Fairfield Project: NIA Sampled: 9125/98 <br /> 780 Chadbourne Road,Ste. D Project Number: 40-3202-01 Received: 9/28/98 <br /> Fairfield,CA 94585-9643 Project Manager: Randy Wheeler Reported: 10/7198 <br /> Diesel Hydrocarbons(C10-C24)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 /> Date Prepared: 9128/98 Extractoon Meth9d: EPA 3510B <br /> Mang 8090285-BLKI <br /> Extractable Hydrocarbons 9/30198 ND mgll 0.0500 <br /> Surrogate: Pentacosane " 0.0400 0.0463 50.0-150 116 <br /> LfS 8090285-BSI <br /> Extractable Hydrocarbons 9/30198 1.00 0.921 mgll 60.0-140 92.1 <br /> Surrogate: Pentacosane 110.0400 0.0469 FO 50.0-150 117 <br /> L S Dup 8090285-115 <br /> Extractable Hydrocarbons 9130198 1.00 0.864 mg/l 60.0-140 86.4 50.0 6.39 <br /> Surrogate: Pentacosane 0.0400 0.0445 50.0-150 111 <br /> Sequoia Analytical-Sacramento *Refer to end of report for text of noses and definitions. <br /> LZ' ,�Wt/z�� <br /> / inda C.Schneider, Laboratory Director Page 5 of 6 <br />