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Chesapeake Drive Redwood City,CA 93 (650)364-9600 FAX(650)364-9233, <br /> Sequoia 404 N.Wiget lane Walnut Creek,CA 94598 (925)988-9600 FAX(925)988-9673 <br /> Analytiea 819 Striker Avenue,Suite 8 Sacramento. 95834 (916)921-9600 FAX(906)921-0100 <br /> L1455 McDowell Blvd.North,Ste.D Petaluma 9 CA 94954 (707)792-1865 FAX(707)792-0342 <br /> LKleinfelder-Stockton Project: N/A - Sampled: 10/20/98 <br /> 2825 East Myrtle Street Project Number: 20-2864-02.E02 Received: 10/23/98 <br /> Stockton,CA 95205 Project Manager: Tony Martin Reported: 11/9/98 <br /> Total Purgeable Hydrocarbons(C6-C12)and BTEX by-DHS LUFT/Quality Control :. <br /> Sequoia Analytical,-`Sacramento <br /> 1 Date Spike Sample QC Reporting Limit Recov. RAD RPD <br /> LLLrrr Analyte Analyzed Level Result Result Units Recov.Limits % Limit % Notes* <br /> Batch: 8110037 Date Prepared: 11/3198 Extraction Method: El'A 5030E(McOH) <br /> Blank 8110037-BLKI <br /> Purgeable Hydrocarbons 11/3/98 ND mg/kg 1.00 <br /> Benzene ND 0.00500 <br /> Toluene " ND 0.00500 <br /> Ethylbenzene ND 0.00500 <br /> Xylenes(total) ND 0.00500 <br /> LSurrogate: a,a,a-Trifluorotoluene 0.200 0.195 60.0-140 97.5 <br /> ISS 8110037-BSI <br /> Benzene 11/3198 0.200. 0.204 mg/kg 70.0-130 102 <br /> Toluene " 0.200 0.194 70.0-130 97.0 <br /> Ethylbenzene 0.200 0.189 70.0-130 94.5 <br /> Xylenes(total) 0.600 0.565 70.0-130 94.2 <br /> LSurrogate: a,a,a-Trifluorotoluene 0.200 0.191 60.0-140 95.5 <br /> Matrix Spike 8110037-MS1 S810278-04 <br /> Benzene 11/3/98 0.200 ND 0.180 mg/kg 60.0-140 90.0 <br /> Toluene 0.200 ND 0.174 " 60.0-140 87.0 <br /> Ethylbenzene 0.200 ND 0.171 60.0-140 85.5 <br /> Xylenes(total) 0.600 ND 0.515 60.0-140 85.8 <br /> LSurrogate: a,a,a-Tris luorotoluene 0.200 0.181 60.0-140 90:5 <br /> Matrix Spike Dun 8110037-MSDI S810278-04 <br /> Benzene 11/3/98 0.200 ND 0.177 mg/kg 60.0-140 88.5 25.0 1.68 <br /> Toluene 0.200 ND 0.170 " 60.0-140 85.0 25.0 2.33 <br /> Ethylbenzene 0.200 ND 0.168 60.0-140 84.0 25.0 1.77 <br /> Xylenes(total) 0.600 ND 0.504 60.0-140 84.0 25.0 2.12 <br /> Surrogate: a,a,a-Trifluorotoluene 0.200 0.183 60.0-140 91.5 <br /> L <br /> L <br /> Sequoia Analytical-Sacramento *Refer to end of report for text of notes and definitions. <br /> tnda C.Schneider,laboratory Director Page 5 of 9 <br />