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Sequoia 680 Chesapeake Drivc kcd. ood CitN CA 9406' 415; 3c,4 9600 rAa 4415} 3o4 9233 <br /> 404 N WEget Lane V alnut Creel. CA 9.,596 1510} 958 9600 FAX 1510} 988 9673 <br /> Analytical 819 Striker Avenue Suitt 8 Sacramcnto CA 95E34 1916; 921 9600 FAX 1916} 927 0100 <br /> Pacific Environmental Group, Inc Client Project ID Unocal #2859, Stockton, CA Sampled Sep 6, 1996 <br /> 2025 Gateway Place, Suite 440 Sample Matrix Air Received Sep 6, 1996 <br /> San Jose, CA 95110 Analysis Method EPA 5030/8015/8020 Deported Sep 12, 1996 <br /> Attention Rhonda DeJung First Sample# 609-0228 <br /> TOTAL PURGEABLE PETROLEUM HYDROCARBONS with BTEX DISTINCTION <br /> Reporting Sample Sample <br /> Analyte Limit I D I D <br /> u9/L 609-0228 609-0229 <br /> INFL EFFL <br /> urgea e <br /> Hydrocarbons 5 0 3,000 260 <br /> Benzene 0 050 12 29 <br /> Toluene 0 050 79 33 <br /> Ethyl Benzene 0 050 34 3 0 <br />• Total Xylenes 0 050 300 31 <br /> Chromatogram Pattern Gasoline Gasoline <br /> C6-C12 C6-C12 <br /> Quality Control Data <br /> Report Limit Multiplication Factor 25 5 0 <br /> Date Analyzed 09/09/96 09/09/96 <br /> Instrument Identification GCHP-2 GCHP-2 <br /> Surrogate Recovery, % 110 110 <br /> (QC Limits = 70-130%) <br /> Purgeable Hydrocarbons are quantitated against a fresh gasoline standard <br /> Analytes reported as N D were not detected at or above the reporting limit <br /> SEQUOIA ANALYTICAL, ELAP 01624 <br /> nda C Schneider <br /> Project Manager/Sacramento Laboratory <br /> 6090228 PEG 41> <br />