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Sequoia 680 Chesapeake Drive Redwood City CA 94063 (650) 364-9600 FAX(650)364-9233 <br /> 404 N Wiget lane Walnut Creek CA 94598 (510)988-9600 FAX(5 10)988-9673 <br /> 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FAX(916)921-0100 <br /> (IIP Analytical 1455 McDowell Blvd North Ste D Petaluma,CA 94954 (707) 792-1865 FAX(707)792-0342 <br /> _ Blaine Tech Services Client Proj ID Shell 6131 Pacific Ave Sampled 05/20/98 <br /> - 1680 Rogers Avenue Sample Descript MW-4 Received 05/22/98 <br /> San Jose, CA 95112 Matrix LIQUID _ <br /> Analysis Method 8015Mod/8020 Analyzed 06/06/98 <br /> ' Attention Fran Thie Lab-Number 9805F44-04 Reported 06J11198 <br /> QC Batch Number GCO60698802002A - - - - <br /> Instrument ID HP-2 <br /> Total Purgeable Hydrocarbons (TPPH) with BTEX and MTBE <br /> Analyte Detection Limit Sample Results <br /> ug/L ug/L <br /> TPPH as Gas 50000 ... 70000 <br /> Methyl t-Butyl Ether 2500 N D <br /> Benzene S00 17000 <br /> Toluene .. ... ... 500 12000 <br /> Ethyl Benzene .. 500 1400 <br /> Xylenes (Total) 500 3500 <br /> Chromatogram Pattern. C6-C12 <br /> Surrogates Control Limits% % Recovery <br /> Trifluorotoluene 70 130 105 <br /> • <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUO LYTICAL - ELAP #1271 <br /> ,eDrler <br /> Project Manager <br /> Page 8 <br />