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Sequoia 680 Chesapeake Dnvc Redwood City CA 94063 (415) 364 9600 FAX(4 F5) 364 9233 <br /> 1900 Bates Avenue,Suite L Concord CA 94520 (510) 686 9600 FAX(510)686 9689 <br /> Analytical 819 Straker Avenue,Suite 8 Sacramento,CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> Mill Creek Associates Client Prof ID Roek Bros Property Sampled 09/13/94^ <br /> P O Box 130 Sample Descript RB-MW8-30 5' Received 09/16/94 <br /> Milford, CA 96121 Matrix SOLID Extracted 09/26/94 <br /> Analysis Method EPA 8015 Mod Analyzed 09/26/94 <br /> Attention nRussell Juncal » Lab Number 9409A73-04 T Fieparted 09130(94 <br /> i^ S S = ».. .. = s » » ——•T= ——_ __�s _ ». , —__�» =1111 ry ^ S 1i <br /> Instrument ID GCHP-56 { <br /> Total Extractable Petroleum Hydrocarbons (TEPH) a <br /> Analyte Detection Limit Sample Results <br /> mg/K9 mg/K9 <br /> TEPH as Diesel 1 0 N D <br /> Chromatogram Pattern <br /> i� Surrogates Control Limits% % Recovery <br /> n-Pentacosane (C25) 50 150 95 <br /> t <br /> � I <br /> k <br /> k <br /> I <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - ELAP 01210 <br /> Vickie Tague Clark <br /> Project Manager Page 7 <br />