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680 Ispeake Drive Redwood City CA 940630(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 /> l 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FAX(916)921-0100 <br /> Iwo Analytica <br /> 1455 McDowell Blvd North Ste D Petaluma.CA 94954 (707)792-1865 FAX(707)792-0342 <br /> i <br /> ATC Associates, Inc Client Prol ID Bozzano Property Sampled 06/18/98 <br /> ' 1260 Graphics Drive Sample Descript BP-SB2-15 5 Received 06/19/98 <br /> ' Modesto, CA 95351-1502 Matrix SOLID Extracted 06/25/98 <br /> Analysis Method 8015Mod/8020 Analyzed 06/25/98 <br /> ;,,,Attention Tom Lutterman _ Lab Number 9806EO6-08 Reported 07130j98 <br /> QC Batch Number GCOfi2598BTEXEXA <br /> Instrument ID GCHP22 <br /> Total Purgeable Petroleum Hydrocarbons (TPPH) with BTEX <br /> Analyte Detection Limit Sample Results <br /> mg/Kg mg/Kg <br /> TPPH as Gas 25 370 <br /> Benzene 012 N D <br /> Toluene 012 2 1 <br /> Ethyl Benzene 012 2 5 <br /> Xylenes (Total) .. 012 17 <br /> Chromatogram Pattern <br /> Weathered Gas C6-C12 <br /> Surrogates Control Limits% % Recovery <br /> Trifluorotoluene 70 130 115 <br /> 4-Bromofluorobenzene 60 140 7 Q <br /> 0 <br /> Analytes reported as N 0 were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP #1210 <br /> Project Manager Page 20 <br />