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Sequoia 680 Chesapeake Drive Redwood City CA 94063 (415) 364 9600 FAX(415) 364 9233 <br /> (D 404 N W�gct 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 /> Envlros Client Prol ID Shell 4315 Waterloo, Stockton Sampled 02/22/96 <br /> 270 Perkins Ave Sample Descript SB-10-12 Received 02/23/96 <br /> Sonoma, CA 95476 Matrix SOLID Extracted 03/01/96 <br /> Analysis Method 8015Mod/8020 Analyzed 03/01/96 <br /> Attention .Joe Neely Lab Number 96021-194-01 Reported 03f22196 <br /> QC Batch Number GCO22996BTEXEXA <br /> Instrument ID GCHP22 <br /> Total Purgeable Petroleum Hydrocarbons (TPPH) with BTEX and MTBE <br /> Analyte Detection Limit Sample Results <br /> mg/Kg mg/Kg <br /> TPPH as Gas .. 20 .. 170 <br /> Methyl t-Butyl Ether 050 099 <br /> Benzene 010 N D <br /> Toluene 010 N D <br /> Ethyl Benzene 010 067 <br /> Xylenes (Total) 010 1 9 <br /> Chromatogram Pattern C6-C12 <br /> Surrogates Control Limits % % Recovery <br /> Trifluorotoluene 70 130 121 <br /> • <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP #1210 <br /> Gregory <br /> eet Manager Page 3 <br />