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Sequoia 680 Chesapeake Drive Redwood City CA 94063 (415) 364-9600 FAX(415)364-9233 <br /> 404 N Wiget Lane Walnut Creek CA 94598 (510) 988 9600 FAX(510)988 9673 <br /> Analytical 819 Stnker Avenue,Suite 8 Sacramento CA 95834 (916) 921 9600 FAX(916)921-0100 <br /> i <br /> 'Canonie Environmen-tal'- _ Client ProIj ID 94-339 Holt Brothers Sampled 03/29/95~ <br /> 1710 Main Street Sample Descript HB MW 5 Received 03/29/95 <br /> Escalon, CA 95320 Matrix LIQUID <br /> = Analysis Method 8015Mod/8020 Analyzed 04/07/95 <br /> = Attention John Lane _ Lab Number 95.03M73-04 Reported 04j12j95 <br /> QC Batch Number GCO40795BTEX06A - -----— --- - -- - - -- — - <br /> Instrument ID GCHP06 <br /> Total Purgeable Petroleum Hydrocarbons (TPPH) with BTEX <br /> Analyte Detection Limit Sample Results <br /> ug/L ug/L <br /> TPPH as Gas 50 .. 160 <br /> Benzene .. 0 50 .. 2 4 <br /> Toluene 050 N D <br /> Ethyl Benzene .. .. .. 0.50 .. 074 <br /> Xylenes (Total) .. 0.50 .. .. 11 <br /> Chromatogram Pattern <br /> Weathered Gas .. .. .. C6-C12 <br /> Surrogates Control Limits% % Recovery <br /> Trifluorotoluene 70 130 94 <br /> I <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP #1210 <br /> k:(duj� <br /> kie Tague Clark <br /> Project Manager Page 12 <br />