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Chesapeake Drive Redwood City C 3 (650)364-9600 FAX(650)364-9233 <br /> ' �• Sequoia N Wiget lane Walnut Creek CA 98 (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 /> Analyticalt551 <br /> McDowell Blvd North Ste D Petaluma CA 94954 (707) 792-1865 fAX(707)792-0342 <br /> E 551 Industrial Road San Carlos CA 94070 411 1 (650) 232-9600 FAX(650)232-9612 <br /> lecor Client Project ID Arco # 434, Lodi Sampled Jun 22, 1999 <br /> 9912 Business Park Dr, Ste 100 Sample Matrix Soil Received Jun 22, 1999 <br /> Sacramento, CA 95827 Analysis Method EPA 5030/8015 Mod/8020 Reported Jun 24, 1999 <br /> Attention Rusty Benkosky First Sample # 906-1819 <br /> QC Batch Number SP062399 SP062399 SP062399 SP062399 SP062399 SP062399 <br /> 8020EXA 8020EXA 8020EXA 8020EM 8020EM 8020EXA <br /> TOTAL PURGEABLE PETROLEUM HYDROCARBONS with BTEX / MTBE <br /> Reporting Sample Sample Sample Sample Sample Sample <br /> Analyte Limit I D I D 1.13 I D I D I D <br /> mg/Kg 906-1819 906-1820 906-1821 906-1822 906-1823 906-1824 <br /> S-1 S-2 S-3 S-4 S-5 S-6 <br /> Purgeable <br /> Hydrocarbons 1 0 N D 1 5 N D N D N D 31 <br /> Benzene 00050 N D N D N D N D N D N D <br /> Toluene 00050 N D N D N D N D N D N D <br /> Ethyl Benzene 00050 N D N D N D N D N D N D <br /> Dotal Xylenes 00050 N D N D 0 011 N D 00088 00098 <br /> MTBE 0050 ND ND ND ND ND ND <br /> Chromatogram Pattern - Gasoline& - Gasoline& <br /> Unidentified Unidentified <br /> Hydrocarbons Hydrocarbons <br /> Quality Control Data > 010 > C10 <br /> Report Limit Multiplication Factor 1 0 1 0 1 0 1 0 10 1 0 <br /> Date Analyzed 6/23/99 6/23/99 6/23/99 6/23/99 6/23/99 6/24/99 <br /> Instrument Identification HP-4 HP-4 HP-4 HP-4 HP-4 HP-4 <br /> Surrogate Recovery, % 80 79 89 79 80 80 <br /> (OC Limits = 40-140%) <br /> Purgeable Hydrocarbons are quantitated against a fresh gasoline standard <br /> Analytes reported as N D were not detected above the stated reporting limit <br /> SEQUOIA ANALYTICAL, #1271 <br /> of��I,{,�' <br /> Dimple Sharma <br /> Project Manager <br /> 9061819 SSS <1> <br />