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SEQUOIA ANALYTICAL <br /> 819 Striker Avenue Suite 8 e Sacramento CA 95834 <br /> (916) 921-9600 • FAX (916) 921-0100 <br /> <r <br /> RESNA Industnes Client Project ID #30003-8 Arco,79M N la Dorado,Stockton Sampled Oct 12, 1992 <br /> 3164 Gold Camp Dr. Surte 200 Sample Matrix Water Received Oct 13, 1992 <br /> Rancho Cordova,CA 95670 Analysis Method EPA 5030/8015/8020 Reported Oct 19, 1992 <br /> Attention Matthew Taylor First Sample# 210-0306 <br /> TOTAL PURGEABLE PETROLEUM HYDROCARBONS with BTEX DISTINCTION <br /> Reporting Sample Sample Sample Sample Sample Sample <br /> Analyte Urnrt 1 D. I D I D I D I D i D. <br /> pg/L 210-0306 210-0307 210-0308 210-0309 210-0310 210-0311 <br /> AS-1-1 MS-1-2 MS-1.3 MS-2-1 MS-2-2 MS-3-1 <br /> Purgeable <br /> Hydrocarbons 50 110 3400 2100 3400 11000 2000 <br /> Benzene 050 12 820 520 460 2500 160 <br /> Toluene 050 is 540 330 110 1400 26 <br /> Ethyl Benzene 050 1 0 53 29 N D N D N D <br /> Total Xylenes 050 1 4 290 190 73 1100 33 <br /> Chromatogram Pattern Gas Gas Gas Gas Gas Gas <br /> Quality Control Data <br /> Report Limn Multiplication Factor 1 0 20 20 40 100 40 <br /> Date Analyzed 10/15/92 10/16/92 10/16/92 10/16/92 10/16/92 10/16/92 <br /> Instrument Identification HP-1 HP-2 HP-2 HP-2 HP-2 HP-2 <br /> Surrogate Recovery, % <br /> (QC 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 /> SEQUOIA ANALYTICAL <br /> Michael R Giles <br /> Laboratory Director <br /> 2100306 RES <1> <br />