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i <br /> Sequoia 68-ft[�esapeake 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(9 16)921-0100 <br /> 455 McDowell Blvd,North,Ste. D Petaluma,CA 94954 (707) 792-1865 FAX(707)792-0342 <br /> Analytical 1 <br /> i 551 Industrial Road San Carlos,CA 94070-4 E 1 1 (650) 232-9600 FAX(650)232-9612 <br /> Pinnacle-C.P. Project: ARCO,5469,Stockton CA Sampled: 2/11/99 <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-SaCranlent0 <br /> Batch Date Date Surrogate Reporting <br /> Analyte Number Prepared Analyzed Limits Limit Result Units Notes* <br /> PL-6 (4')[continued) S902174-Ofi <br /> S9J.1 <br /> Benzene 9020187 2/16/99 2/16199 0.00500 ND mg/kg <br /> Toluene 0.00500 ND " <br /> Ethylbenzene 0.00500 ND " <br /> Xylenes(total) 0.00500 ND " <br /> Surrogate: a,a,a-Triuorotoluene " " 60.0-140 91.5 % <br /> RL-7(4.3 ) 5902174-07 S" <br /> Purgeable Hydrocarbons 9020187 2/16199 2/16199 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 /> PL-ti(4') 5902174-08 SIil <br /> Purgeable Hydrocarbons 9020187 2116199 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 luorotofuene 60.[?-140 93.5 <br /> 9/0 <br /> RL-9(4') S202174-09 SQlI <br /> Purgeable Hydrocarbons 9020177 2/16199 2/16199 1.00 1.03 mg/kg 1 <br /> Benzene 0.00500 ND " <br /> Toluene 0.00500 ND " <br /> Ethylbenzene 0.00500 ND " <br /> Xylenes(total) 0.00500 ND " <br /> Surrogate: a,a,a-Trifluorotoluene 60.0-140 94.5 % <br /> EL-1 0(4.3') S902174-1 0 594.1 <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) 0.00500 ND " <br /> Surrogate: a,a,a-Triuorololuene 60.0-140 92.0 <br /> Pl.- 'i SH214-121741./ Soil <br /> Purgeable Hydrocarbons 9020187 2/16/99 2/16199 1.00 4.71 mg/kg 2 <br /> Benzene 0.00500 ND " <br /> Sequoia Analytical-Sacramento *Refer to end of report for text of nates and definitions. <br /> Ronald W. Bobel,Client Services Representative Page 3 of 15 <br />