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680 Chesapeake Drive Mdwood Cty CA 94063 (650) 364-9600 FAX(650) 364-9233 <br /> Sequoia 404 N Wiget Lane Walnut Creek CA 94598 (925)988-9600 FAX(925)988-9673 <br /> $19 Striker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FAX(916)921-0100 <br /> Analytical 1455 McDowell Blvd North Ste D Petaluma,CA 94954 (707)792-1865 FAX(707) 792-0342 <br /> i <br /> Blaine Tech Services - - Client�Proj ID Shell 141-N-El Dorado i - Sampled 07/28/98 - _- <br /> 1680 Rogers Avenue Sample Descrlpt VEW-4 Received 07/30/98 <br /> San Jose, CA 95112 Matrix LIQUID _ <br /> Analysis Method Sol 5Mod/8020_ _ Repo ed 08114/98- <br /> Attention / LL <br /> Fran Thie -- _ _ _ _ Lab Number_9807H79-11 „--- - _ _ -_--_ - « -- _ - <br /> OC Batch Number GCO80698802004A <br /> Instrument !D HP-5 <br /> Total Purgeable Hydrocarbons (TPPH) with BTEX and MTBE <br /> Analyte Detection Limit Sample Results <br /> ug/L ug/L. <br /> TPPH as Gas 50 N D <br /> Methyl t-Butyl Ether •-- - -•• -- 25 -' 20 <br /> Benzene 0 50 N D <br /> Toluene 0 50 ND <br /> Ethyl Benzene 0 50 N D <br /> Xylenes (Total) 0 50 <br /> Chromatogram Pattern <br /> Surrogates Control Limits % % Recovery <br /> Trlfluorotoluene 70 130 77 <br /> 0 <br /> Analytes reported as N re not}resent above the stated limit of detection <br /> SEQUOI AL ICAL - ELAP #1271 <br /> P P nne <br /> Pro ct M ger Page 12 <br />