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Sequoia 680 Chesapeake Drive Redwood City.CA 94063 (650)364-9600 FAX(650)364-9233 <br /> 1 404 N.Wlget Lane Walnut Creek,CA 94598 (925)988-%00 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 /> ::_; 1551 Industrial Road San Carlos, CA 94070-4111 (650)232-9600 FAX(650)232-9612 <br /> i- <br /> ATC Associates,Inc. Project: ATC Projects Sampled: 3/9/99 <br /> 1117 lone palm Ave.,Suite B Project Number: Glover Property Received: 3/10/99 <br /> Modesto,CA 95351 Project Manager: Jeanne Homsey Reported: 3/30/99 <br /> i Total Purgeable Hydrocarbons(C6=C1.2)and BTEX by DHS LUFT/Quality Control <br /> Sequoia Analytical San Carlos <br /> Date Spike Sample QC Reporting Limit Recov. RPD RPD <br /> (Analyte Analyzed Level Result Result Units Recov.Limits % Limit % Notes* <br /> )Batch: 9030075 Date Prepared: 3/18/99 Extraction Method: EPA 5030B [P/T1 <br /> Blank 9030075-BLK2 <br /> Purgeable Hydrocarbons as Gasoline 3/18/99 ND mg/kg 1.00 <br /> _Benzene ND 0.00500 <br /> .:_iToluene ND 0.00500 <br /> `Ethylbenzene " ND 0.00500 <br /> Xylenes(total) ND 0.00500 <br /> ::;;Surrogate.- a,a,a-Trifluorotoluene " 0,200 0.168 " 60.0-140 84.0 <br /> LCS 9030075-BS2 <br /> Benzene 3/18/99 0.200 0.173 mg/kg 70.0-130 86.5 <br /> l!Toluene 0.200 0.177 70.0-130 88.5 <br /> 1Ethylbenzene 0.200 0.184 70.0-130 92.0 <br /> Xylenes(total) 0.600 0.541 70.0-130 90.2 <br /> Surrogate: a,a,a-Trifluoro toluene 0.200 0.165 60.0-140 82.5 <br /> "s <br /> atrix Snike 9030075-MSI L903054-11 <br /> Benzene 3/17/99 0.200 0.179 mg/kg 60.0-140 89.5 <br /> ;:_iToluene 0.200 0.177 60.0-140 88.5 <br /> `.JEthylbenzene 0.200 0.194 60.0-140 97.0 <br /> Xylenes(total) 0.600 0.573 60.0-140 95.1 <br /> Surrogate: a,a,a-Triuorotoluene 0.200 0.177 60,0-140 88.5 <br /> Matrix Spike Dun 9030075-MSD1 L903054-11 <br /> Benzene 3/17/99 0.200 0.176 mg/kg 60.0-140 88.0 25.0 1.69 <br /> Toluene 0.200 0.I$3 60.0-140 91.5 25.0 3.33 <br /> Ethylbenzene 0.200 0.190 60.0-140 95.0 25.0 2.08 <br /> Xylenes(total) 0.600 0.574 60.0-140 95.3 25.0 .210 <br /> Surrogate.- a,a,a-Trifluorotoluene 0.200 0.171 60.0-140 85.5 <br /> ':1 <br /> A <br /> : I <br /> i <br /> Auoia Analytical-San Carlos *Refer to end of report for text of notes and definitions. <br /> Pages of 10 <br />