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Sequoia680 Chesapeake Dnve Redwood City,CA 94063 (650) 364 9600 FAX(650)364 9133 <br /> 404 N Wiget Lane Walnut Geek,CA 94598 (510) 988 9600 FAX(510)988-9673 <br /> Analytical 819 Sinker Avenue,Suite 8 Sacramento,CA 95834 (916) 921-9600 FAX(916)921 0100 <br /> _F? <br /> Gettler Ryan[Geostrategie5 Client Prod ID Unocal SS#5886 Sampled 03/25/98 <br /> 6747 Sierra Gourt Sade J Sample Descrlpt MW-7D Received 03/25/98 j <br /> Dublin, CA 94568 Matrix LIQUID Extracted 03/27/98 <br /> Analysis Method EPA 8015 Mod Analyzed 03/31/98 <br /> Attention Deanna Harding, »Y»- ,Lab Number 9803G84-11 _ r Reported 04/08198 <br /> L..».....»..5am!L Mr <br /> )C Batch Number GC0327980HBPEXB <br /> nstrument lD GCHP198 <br /> Total Extractable Petroleum Hydrocarbons (TEPH) with Silica Gel Cleanup <br /> Analyte Detection Limit Samp}e Results <br /> ug/L ug/L <br /> TE=PH as Diesel 5o N D <br /> Chromatogram Pattern <br /> Surrogates Control Limits % % Recovery <br /> -1-Pentacosane (C25) 50 150 92 <br /> i <br /> rtes reported as N D were not present above the stated limit of detection <br /> :)UOIA ANALYTICAL - ELAP #1210 <br /> ry <br /> �c ager Page 2 <br />