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Sequoia U68o Chesapeake Drive Redwood City,CA "40,J 1415), 364-9601'. FAX'415, 364-9233 <br /> 404 N.Wiget Lane Walnut Creek,CA 9459 (510) 988-9600 FAX(510)988-9673 <br /> Analytical 819 Striker Avenue,Suite 8 Sacramento.CA 95834 (916) 921.9600 FAX(916)921-010() <br /> .......................................... <br /> .... ............................ .................— ................. <br /> .......................... ............- <br /> .......................................... z :=Inn <br /> .......................................................................... ............. ........................................... <br /> Touchstone Developments <br /> N Client Proj. ID: 9-1452 Chevron 9-14iff- ............... .........................Sampled:dl:09/27/96 <br /> ,: ' 111 <br /> 5807 Balboa Drive Sample Descript: P-2-3.0 Received- 09/28/95 <br /> Oakland, CA 94611 <br /> N! Matrix: SOLID Extracted: 09/28/95 <br /> Analysis Method: 8015Mod/8020 <br /> Analyzed: 09/28/95 <br /> 'Z!Attention: Robert Mallory Lab Number: 9509100-10 <br /> .............................. .............4 9 <br /> ...........................!......................................... <br /> .......................................... ........................................... ::::::.............T�p 90.:.J:9J.9§1 5 <br /> N ........... ........... .......... <br /> ............................................................................................................................. ........................................... <br /> .............................................. ................... <br /> QC Batch Number: GC092895BTEXEXC ................................. <br /> Instrument ID: GCHP06 <br /> Total Purgeable Petroleum Hydrocarbons (TPPH) with BTEX <br /> Analyte <br /> Detection Limit Sample Results <br /> J mg/Kg mg/Kg <br /> TPPH as Gas 1'0 <br /> N.D. <br /> Benzene 0.0050 N.D. <br /> Toluene ii 0.0050 N.D. <br /> Ethyl Benzene <br /> 0.0050 N.D. <br /> Xylenes (Total) 0.0050 N.D. <br /> Chromatogram Pattern: Y <br /> 4 <br /> Surrogates Control Limits% % Recovery <br /> Trifluorotoluene I 70 130 107 <br /> II <br /> ii <br /> Analytes reported as N.D.were not present above the stated limit of detection. <br /> SEQU A ANALYTICAL FLAP #1210 J <br /> Mark Cargasacchi <br /> Project Manager <br /> Page: 15 <br />