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Sequoia 680 Chesapeake Drive Redwood City,CA 94063 (650)364-9600 FAX(650)364-9233 <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)921-0 100 <br /> Analytical 1455 McDowell Blvd.North,Ste.D Petaluma,CA 94954 <br /> (707)792-1865 FAX(707) 792-0342 <br /> 1551 Industrial Road San Carlos,CA 94070-41 I I (650)232-9600 FAX(650)23Z-96 12 <br /> Pinnacle-C.P. Project: ARCO,5469,Stockton CA Sampled: 2/1 1/99 <br /> 3939 Cambridge Road,Ste. 220 Project Number: N/A Received: 2/12/99 <br /> Cameron Park,CA 95682 Project Manager: Mark Capps Reported: 3/1/99 <br /> Total Purgeable Hydrocarbons(C6-C12) and BTEX by DHS LUFT <br /> Sequoia Analytical-Sacramento <br /> Batch Date Date Surrogate Reporting <br /> FAnalyte Number Prepared Analyzed Limits Limit Result Units <br /> Notes* <br /> PL-6(4')(conte S202174-06 SAW <br /> 9020187 2/16/99 2/16/99 0.00500 ND mg/kg <br /> Toluene ,. <br /> " <br /> Ethylbenzene 0.00500 ND0.00500 ND " <br /> Xylenes(total) <br /> 0.00500 ND <br /> " <br /> Surrogate: a,a,a-Tris luorotoluene 60.0-140 9 <br /> PL-7(4.3) S202174-07 SAW <br /> Purgeable Hydrocarbons 9020187 2/16/99 2/16/99 1.00 5.52 mg/kg 2 <br /> Benzene 0.00500 0.187 " <br /> Toluene 0.00500 0.00534 " <br /> Ethylbenzene 0.00500 ND " <br /> Xylenes(total) 0.00500 1.04 " <br /> Surrogate: a,a,a-Trifluorotoluene 60.0-140 93.5 <br /> FL-8(4) S902174-08 &WPurgeable Hydrocarbons 9020187 2/16/99 2/16/99 1.00 2.40 mg/kg 2 <br /> Benzene 0.00500 ND " <br /> Toluene 0.00500 ND " <br /> Ethylbenzene 0.00500 ND " <br /> Xylenes(total) 0.00500 0.319 " <br /> Surrogate: a,a,a-Tris luorotoluene 60.0-140 93.5 % <br /> PL-9(4) S902174-09 &WPurgeable Hydrocarbons 9020177 2/16/99 2/16/99 1.00 1.03 mg/kg I <br /> Benzene <br /> Toluene 0.00500 ND " <br /> 0.00500 ND " <br /> Ethylbenzene 0.00500 ND " <br /> Xylenes(total) <br /> 0.00500 ND <br /> " <br /> Surrogate: a,a,a-Tris luorotoluene 60.0-140 9 <br /> PL-10(4.3') S902174-10 S" <br /> Purgeable Hydrocarbons 9020187 2/16/99 2/16/99 1.00 ND mg/kg <br /> Benzene 0.00500 ND " <br /> Toluene 0.00500 ND " <br /> Ethylbenzene 0.00500 ND " <br /> Xylenes(total) <br /> 0.00500 ND <br /> " <br /> Surrogate: a,a,a-Tris luorotoluene 60.0-140 9 <br /> PL-11(41 5902174-11 X411 <br /> Purgeable Hydrocarbons 9020187 2/16/99 2/16/99 1.00 4.71 mg/kg 2 <br /> Benzene 0.00500 ND " <br /> Sequoia Analytical-Sacramento *Refer to end of report for text of notes and definitions. <br /> r <br /> Ronald W. Bobel,Client Services Representative Page 3 of 15 <br />