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` 680 Opeake Drive Redwood City CA 94063(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 /> Analytical 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FAX(916)921-0100 <br /> 1455 McDowell Blvd North Ste D Petaluma,CA 94954 707 792-1865 FAX 707)792-0342 <br /> ATC Associates, Inc Client Pro' ID Bozzano Property Sampled 06/18/98 <br /> " 1260 Graphics Dnve Sample Descript BP-SB2-35 5 Received 06/19/98 <br /> Modesto, CA 95351-1502 Matrix SOLID Extracted 06/25/98 <br /> Analysis Method 6015Mod/8020 Analyzed 06/26/98 <br /> ' Attention Tom Lutterman Lab Number 9806E06-10 " Reported 07J30198 <br /> CC Batch Number GC062598BTEXEXA <br /> Instrument ID GCHP18 <br /> Total Purgeable Petroleum Hydrocarbons (TPPH) with BTEX <br /> Analyte Detection Limit Sample Results <br /> mg/Kg mg/Kg <br /> TPPH as Gas 250 2500 <br /> Benzene 1 2 N D <br /> Toluene 1 2 46 <br /> Ethyl Benzene 1 2 34 <br /> Xylenes (Total) 12 170 <br /> Chromatogram Pattern <br /> Weathered Gas C6-C12 <br /> Surrogates Control Limits % % Recovery <br /> Tri luorotoluene 70 130 98 <br /> 4-Bromofluorobenzene 60 140 11 Q <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP 01210 <br /> Project anager Page 24 <br />