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Sequoia 680 Chesapeake Drive Redwood City CA 94063 ({15) 364 9600 FAX(415) 364 9233 <br /> 1 404 v Wlget Lane Walnut Creek CA 94598 (5l0) 988 9600 FAX(510)988 9673 <br /> 819 Striker Avenue Suite 8 Sacramento CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> Aco Analytical <br /> alta EnvironMental Consultants Client Project ID Unocal #5886 / Stockton Sampled Sep 25 1995 <br /> ' 3164 Gold Camp Dr, Ste 200 Sample Matrix Soil Reported ed Sep 25, 1995 <br /> ed Se 25, 1995 <br /> Rancho Cordova CA 95670 Analysis Method EPA 5030/8015 Mod /8020 P P <br /> Attention Eric Halm First Sample # 509-034 <br /> ' TOTAL PURGEABLE PETROLEUM HYDROCARBONS With BTEX DISTINCTION <br /> Reporting Sample Sample Sample' Sample Sa D ie Anaiyte Limit I.D 1 D I D <br /> mg/kg 509-034 509-035 509-037 509-041 509-046 <br /> GP-1-13' GP-1-9' GP-2-13' GP-3-13' GP 4-13' <br /> ' Purgeable <br /> Hydrocarbons 1 0 N D N D N D N D N D <br /> i ' N D <br /> Benzene 00050 N D N D N D N D <br /> tToluene 00050 N D N D N D N D N D <br /> 1 <br /> Ethyl Benzene 00050 N D <br /> ND ND ND ND <br /> Total Xylenes 00050 <br /> ND ND ND ND ND <br /> ' Chromatogram Pattern <br /> ' Duality Control Data <br /> ' Report Limit Multipilcation Factor 10 <br /> is 1 1a 1a <br /> Date Anaiyzed 9/25/95 9/25/95 9/25/95 9/25/95 9/25/95 <br /> 1 Instrument Identification ML 2 ML 2 MI-2 ML 2 ML 2 <br /> Surrogate Recovery, % 103 84 <br /> 73 59 129 <br /> ' Purgeaole riydrocarbons are quantitated against a fresh gasoline standard <br /> Analytes reported as N D were not detected above the stated reporting iMt <br /> I <br /> SEQUOIA ANALYTICAL #1271 <br /> Kenr�'t@th L Wimer <br /> Prole& Manager 5019-033 OCD -3> <br />