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j SEQUOIA ANALYTICAL <br /> 819 Striker Avenue, Suite 8 • Sacramento CA 95834 <br /> {916) 921-9600 • FAX (916) 921-0100 <br /> 1 � <br /> R ES�NA�ri�o .'ari.,;��.,°".' n,' ��v.::v"ks�$'2' 9>`•?SrN'�2��-� �v}4, ' .., 4'0""'Rn�.a .V s: +Srinoa ry.:;' .,a x>\� a..x y .n,c �C'2 u�fN[t <br /> ,,, O~ J^•wxvlM'S O.tO�k, h `n ku'R� <br /> ustries Client Project ID *30003-8 Arco 7906 N Ef Dorado,Stockton Sampled Oct 13, 1992 <br /> 3164 Gold Camp Dr. Suite 200 Sample Matrix Water Received Oct 13, 1992 <br /> Rancho Cordova CA 95670 Analysis Method EPA 5030/8015/8020 Reported Oct 22, 1992 <br /> Attention Matthew Taylor First Sample # 210-0323 <br /> TOTAL PURGEABLE PETROLEUM HYDROCARBONS with BTEX DISTINCTION <br /> Reporting Sample Sample Sample Sample Sample Sample <br /> Analyte Lima I.D. I D I.D. I D. I D. I D. <br /> tr pg/L 210-0323 210-0324 210-0325 210-0326 210-0327 210-0328 <br /> AS-1-1 AS-1-2 MS-1-1 MS-1-2 MS-1-3 MS-2-1 <br /> Purgeadle <br /> Hydrocarbons 50 690 360 2300 1900 1100 330 <br /> Benzene 050 1 9 20 520 440 240 160 <br /> Toluene 050 1 7 2 0 350 290 150 N D <br /> . Ethyl Benzene 050 N D N D 29 120 12 N D <br /> Total Xylenes 050 45 34 210 170 97 N D <br /> Chromatogram Pattern Gas Gas Gas Gas Gas Low B P <br /> Hydrocarbons <br /> Quality Control Data <br /> Report Umd Multipbcation Factor 1 0 1 0 20 20 10 5 0 <br /> Date Analyzed 10/16/92 10/16/92 10/19/92 10/19/92 10/19/92 10/16/92 <br /> Instrument Identification HP-1 HP-1 HP-2 HP-2 HP-2 HP-1 <br /> Surrogate Recovery, % <br /> (OC Limas = 70-130%) <br /> Purgeable Hydrocarbons are quantitated against a fresh gasoline standard <br /> Analytes reported as N D were not detected above the stated reporting limit <br /> SEQUOIA ANALYTICAL <br /> Michael R Giles <br /> Laboratory Director <br /> 2100323 RES <1> <br />