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4DSequoia 819 Striker Avenue,Euite 8 <br /> Sacramento,CA 958-44 Analytical - <br /> w„w (916)921-9600 <br /> FAX{916)921-0100 <br /> IT Corporation-Sacramento Project: Parkinson ARCO Sampled: 1/26/00 <br /> 1433 N.Market Blvd.,Ste. 1 Project Number: 880-040.1A Received: 1/27/00 <br /> Sacramento,CA 95834 Project Manager: Kathleen Waldo Reported: 2/9/00 <br /> Total Purgeable Hydrocarbons(C6-C12)and BTEX by DHS LUFT/Quality Control <br /> Sequoia Analytical-Sacramento <br /> Date Spike Sample QC Reporting Limit Recov. RPD RPD <br /> Analyte <br /> Analyzed Level Result Result Units Recov.Limits % Limit % Notes* <br /> Batch: 0010266 Date Prepared: 1/28/00 Extraction Method: EPA 5030B(MeOH) <br /> Blank 0010266-BLKI <br /> Purgeable Hydrocarbons 1/28/00 ND mg/kg 1.00 <br /> Benzene It ND " 0.00500 <br /> Toluene it ND 0.00500 <br /> Ethylbenzene ND 0.00500 <br /> Xylenes(total) ND 0.00500 <br /> Surrogate: a,a,a-Trifluorotoluene 0.200 0.185 60.0-140 92.5 <br /> LCS 0010266-BSI <br /> Benzene 1/28/00 0.200 0.200 mg/kg 70.0-130 100 <br /> Toluene of 0.200 0.207 70.0-130 103 <br /> Ethylbenzene " 0.200 0.207 " 70.0-130 103 <br /> Xylenes(total) 0.600 0.573 70.0-130 95.5 <br /> Surrogate: a,a,a-Trifluorotoluene 0.200 0.195 60.0-140 97.5 <br /> Matrix Spike 0010266-MS1 S001351-07 <br /> Benzene 1/28/00 0.200 ND 0.183 mg/kg 60.0-140 91.5 <br /> Toluene 0.200 ND 0.188 60.0-140 94.0 <br /> Ethylbenzene 0.200 ND 0.184 60.0-140 92.0 <br /> Xylenes(total) 0.600 ND 0.522 60.0-140 87.0 <br /> Surrogate: a,a,a-Tris luorotoluene 0.200 0.192 60.0-140 96.0 <br /> Matrix Spike Dui) 0010266-MSD1 5001351-07 <br /> Benzene 1/28/00 0.200 ND 0.183 mg/kg 60.0-140 91.5 25.0 0 <br /> Toluene It0.200 ND 0.179 60.0-140 89.5 25.0 4.90 <br /> Ethylbenzene 0.200 ND 0.186 60.0-140 93.0 25.0 1.08 <br /> Xylenes(total) 0.600 ND 0.523 60.0-140 87.2 25.0 0.230 <br /> Surrogate: a,a,a-Tris luorotoluene 0.200 0.198 60.0-140 99.0 <br /> Batch: 0020002 Date Prepared: 1/31/00 Extraction Method: EPA 5030B(MeOH) <br /> Blank 0020002-BLKI <br /> Purgeable Hydrocarbons 1/31/00 ND mg/kg 1.00 <br /> Benzene ItND 0.00500 <br /> Toluene ItND 0.00500 <br /> Ethylbenzene ItND 0.00500 <br /> Xylenes(total) ItND 0.00500 <br /> Surrogate: a,a,a-Trifluorotoluene It0.200 0.194 60.0-140 97.0 <br /> LCS 0020002-BSI <br /> Benzene 1/31/00 0.200 0.197 mg/kg 70.0-130 98.5 <br /> Toluene It0.200 0.206 70.0-130 103 <br /> Sequoia Analytical-Sacramento 'Refer to end of report for text of notes and definitions. <br /> Page l 1 of 16 <br /> rV% <br />