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` SEQUOIA ANALYTICAL _ <br /> 819 Striker Avenue, Suite 8 • Sacramento, CA 95834 <br /> (916) 921-9600 a FAX (916) 921-0100 <br /> RES m ed D co X2168, Stockton 1 11- <br /> z 3164 Gold Camp Dr.,Suite 200 Sample Mwbc Sal Received: Jan 14, 111993 <br /> 'Rancho Cordova,CA 95870 Analysis Method: EPA 5030/8015/8020 Reported: Jan 28, 1993 <br /> Attention: David Stavarek First Sample #• 301-0303 <br /> TOTAL PURGEABLE PETROLEUM HYDROCARBONS with STEX DISTINCTION <br /> Reporting Sample Sample Sample Sample Sample Sample <br /> Analyte Umrt I.D. I.D. I.D. I.D. I.D. I.D. <br /> mg/kg 301-0303 301-0304 301-0305 301-0306 301-0307 301-0308 <br /> S•25-818 S-31-618 S-40.818 S-18_819 S-31-B/9 S-41-819 <br /> Purgeable <br /> Hydrocarbons 10 72 41 49 13 92 31 <br /> Benzene 0 005 032 054 033 030 030 051 <br /> Toluene 0 005 027 0 088 050 0 089 0 024 0 081 <br /> Ethyl Benzene 0 005 068 0 015 0 089 0 037 0 055 0 084 <br /> Total Xylenes 0 005 43 033 046 020 00052 0.15 <br /> Chromatogram Pattern Gas Gas Gas Cas Gas Gas <br /> Quality Control Data <br /> Report Umrt Multiplication Factor so 10 10 10 10 10 <br /> Date Analyzed 1/22/93 1/21/93 9/21/93 1/21/93 1/21/93 1/22/93 <br /> Instrument IdentfOcatfon HP-1 HP-1 HP-1 HP-1 HP-1 HP-1 <br /> Surrogate Recovery, % 107 101 98 98 88 95 <br /> (CC limits = 70-130%) <br /> Pvrgeable Hydrocarbons are quarittated against a fresh gasoline standard <br /> Anatytes reported as N D were not detected above the stated reparung limit <br /> SEQUOIA AjNALrn AL <br /> C�C� <br /> Michael R. Goes <br /> Laboratory Director 3010285.RES {4> <br />