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Sequoia <br />680 Chesapeake Drive <br />404 N Wiget Lane <br />Redwood City CA 94063 <br />Walnut Creek. CA 94598 <br />(650) 363-)600 <br />(925) 98&9600 <br />FAX (650) 3549233 <br />FAX (925) 98&9673 <br />1 0 <br />819 Striker Avenue <br />Suite 8 <br />Sacramento CA 95834 <br />(916) 921 9600 <br />FAX (916) 921-0100 <br />2/4/99 <br />E455 McDowell Blvd <br />North Ste D <br />Petaluma CA 94954 <br />(707) 792 1865 <br />FAX (707) 792-0342 <br />14W <br />Analytical 1551 Industrial Road <br />San Carlos CA 94070-411 t <br />(650) 232-9600 <br />FAX (650) 232-%12 <br />leer -Ryan - Dublin <br />Client Project 10 <br />Chevron #9-5775, Lodi <br />Sampled <br />Jan 25-27,1999 <br />6747 Sierra Court, Suite J <br />Sample Matrix <br />Sail <br />Received <br />Jan 29, 1999 <br />Dublin, CA 94568 <br />Analysis Method <br />EPA 5030/8015 Mod /8020 <br />Reported <br />Feb 10, 1999 <br />Attention Barbara Sieminski <br />First Sample # <br />902-0050 <br />TOTAL PURGEABLE PETROLEUM HYDROCARBONS with BTEX / MTBE <br />Reporting <br />Sample <br />Sample <br />Sample Sample <br />Sample <br />Sample <br />Analyte Limit <br />I D <br />I.D <br />I D I D <br />I D <br />I D <br />mg/Kg <br />902-0050 <br />902-0051 <br />902-0052 902-0053 <br />902-0054 <br />902-0055 <br />MW3-33 <br />MW3-41 5 <br />MW3-45 5 MW3-51 <br />MW3-54 5 <br />MW3-57 <br />Purgeable <br />Hydrocarbons 10 <br />N D <br />N D <br />N D N D <br />N D <br />N D <br />Benzene 00050 <br />N D <br />N D <br />N D N D <br />0 022 <br />0 025 <br />Toluene 00050 <br />00087 <br />N D <br />N D N D <br />N D <br />N D <br />Ethyl Benzene 00050 <br />N D <br />N D <br />N D N D <br />N D <br />N D <br />1110tal <br />N D <br />N D N D <br />N D <br />N D <br />Xylenes 00050 <br />0 012 <br />MTBE 0 050 <br />0 086 <br />N D <br />N D N D <br />014 <br />N D <br />Chromatogram Pattern <br />uuatity L;ontroi rata <br />Report Limit Multiplication Factor <br />1 0 <br />1 0 <br />1 0 <br />10 <br />1 0 <br />1 0 <br />Date Analyzed <br />2/4/99 <br />2/4/99 <br />2/4/99 <br />2/4/99 <br />2/4/99 <br />2/4/99 <br />Instrument Identification <br />HP -4 <br />HP -4 <br />HP -4 <br />HP -4 <br />HP -4 <br />HP -4 <br />Surrogate Recovery, % <br />93 <br />89 <br />89 <br />96 <br />98 <br />96 <br />(OC Limits = 40-140%) <br />Purgeable Hydrocarbons are quantitated against afresh gasoline standard <br />Analytes reported as N D were not detected above the stated reporting limit <br />S i101A ANALYTICAL, #1271 <br />GIM. <br />J Janne Fegley <br />rolect Manager <br />9020044 GET <2> <br />