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i <br /> SEQUOIA ANALYTICAL <br /> 819 Striker Avenue, Suite 8 • Sacramento, CA 95834 <br /> (916) 921-9600 - FAX {916) 9210100 <br /> t; <br /> RESNA Ind <br /> ustnes YClient Project ID #30003-8,Arco,79M N o Dorado,Stockton Sampled Oct 13, 1992 <br /> 3164 Gold Camp Dr, Suite 200 Sample Matra 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 Umd I D. I.D I D. I.D. I.D I.D. <br /> Ng/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 /> Purgeable <br /> Hydrocarbons 50 690 360 2300 1900 1100 330 <br /> Benzene 050 1 9 2 0 520 440 240 160 <br /> Toluene 050 1 7 20 350 290 150 N D <br /> Ethyl Benzene 050 N D N D 29 120 12 N D <br /> Total Xylenes 050 45 3 4 210 170 97 N D <br /> Chromatogram Pattern Gas Gas Gas Gas Gas Low B P <br /> Hydrocarbons <br /> Qualdy Control Data <br /> Report Urnit Multlpl-cation Far <br /> 1 0 ' 0 20 20 10 50 <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 Limits = 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 /> SISEQUOIA ANALYTICAL <br /> awll -41 <br /> Michael R Giles <br /> Laboratory Director <br /> 2100323 RES <1 <br />