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• 680 Ch•Bake Drive Redwood City CA 94063(650) 364-9600 FAX(650)364-9233 <br /> 45)0 <br /> Sequoia 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)921-0100 <br /> 1% Analytical 1455 McDowell Blvd North Ste D Petaluma,CA 94954 (707)792-1865 FAX(707)792-0342 <br /> i <br /> ATC Associates, Inc Client Pro'-ID--_Bozzano Property - _ -- Sampled <br /> = 1260 Graphics Drive Sample Descript Method Blank Received 06/19/98 <br /> Modesto, CA 95351-1502 Matrix SOLID Extracted 06/30/98 <br /> Analysis Method 8015Mod/8020 Analyzed 06/30/98 <br /> ' Attention Tom Lutterman Lab Number 9806E06-20 Reported 07J30j98 <br /> QC Batch Number GC063098STEXEXA <br /> Instrument ID GCHP01 <br /> Total Purgeable Petroleum Hydrocarbons (TPPH) with BTEX <br /> Analyte Detection Limit Sample Results <br /> mg/Kg mg/Kg <br /> TPPH as Gas 10 N D <br /> Benzene 00050 N D <br /> Toluene 00050 N D <br /> Ethyl Benzene 00050 N D <br /> Xylenes (Total) 00050 N D <br /> Chromatogram Pattern <br /> Surrogates Control Limits% % Recovery <br /> Trlfluorotoluene 70 130 102 <br /> 4-Bromolluorobenzene 60 140 99 <br /> 0 <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP #1210 <br /> Project anager Page 46 <br />