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` 680 C peake Drive Redwood City CA 94063 (650)364-9600 FAX(650) 364-9233 <br /> Sequoia J 404 N Wiget Lane Walnut Creek.CA 94598 (925)988-%00 FAX(925)988-9673 <br /> fwl7 Analytical 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FAX(916)921-Otoo <br /> 1455 McDowell Blvd North Ste D Petaluma.CA 94954 (707)792-1865 FAX(707)792-0342 <br /> -M- <br /> ATC =._.�.........ss_. -- <br /> ATC Associates, Inc Client Pro' ID Bozzano Property Sampled 06/18/98 L1 <br /> 9i 1260 Graphics Drive Sample Descnpt BP-SB1-25 5 Received 06/19/98 " <br /> Modesto, CA 95351-1502 Matrix SOLID Extracted 06/24/98 z' <br /> Analysis Method 8015Mod/8020 Analyzed 06/26/98 " <br /> 4 Attention Tom LuttermanLab Number 9806E06-02 Reported 07/30/98 <br /> -""1 _ =' <br /> .- - -_ - - =- <br /> OC Batch Number GC662498B76(EXBr <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 .. ... 500 . . . . 9500 <br /> Benzene 25 N D <br /> Toluene ., 2.5 .. . .... .... . 65 <br /> Ethyl Benzene ,. .. 2.5 ... ... 82 <br /> Xylenes (Total) .. .. 2.5 ... 470 <br /> Chromatogram Pattern <br /> Weathered Gas .. .. >C7 <br /> Surrogates Control Limits% % Recovery <br /> Trifluorotoluene 70 130 103 <br /> 4-Bromofluorobenzene 60 140 p <br /> i <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP 01210 <br /> 1 <br /> Project Manager Page 6 <br />