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• SEQUOIA ANALYTICAL <br /> 819 Striker Avenue, Suite 8 • Sacramento, CA 95834 <br /> (916) 921-9600 • FAX (916) 921 0100 <br /> RESNA Industries' Client Project ID #38012-15/Former Unocal #2859 Sampled Jun 4, 1993 <br /> 3164 Gold Camp Dr, Suite 200 Sample Matrix Water Received Jun 7, 1993 <br /> Rancho Cordova, CA 95670 Analysis Method EPA 5030/8015/602 Reported Jun 14, 1993 <br /> Attention Richard Alden First Sample# 306-0250 <br /> 4 <br /> TOTAL PURGEABLE PETROLEUM HYDROCARBONS with BTEX DISTINCTION <br />• <br /> Reporting Sample Sample Sample Sample Sample Sample <br /> Analyte Limit I D. I D I D I I D I D <br /> ug/L 306-0250 306-0251 306-0252 306-0253 306-0254 306-0255 <br /> W-47-MW7 W-46-MW5 W-46-MW4 W45-MWI `V 46-MW2 W-45-MW3 <br />• Purgeable <br /> Hydrocarbons 50 N D N D 73 N D 170 000 1,600 <br /> Benzene 0 5 N D N D N D N D 15,000 260 <br />• Toluene 0 5 N D N D N D N D 65,000 120 <br /> Ethyl Benzene 0 5 N D N D N D N D 5,000 34 <br />�. Total Xylenes 0 5 N D N D N D N D 24,000 97 <br /> Chromatogram Pattern - - Weathered - Gasoline Gasoline <br /> Gasoline <br /> QualAy Control Data <br /> Report Lamm Multiplication Factor 10 1 0 1 0 1 0 2,000 10 <br /> Date Analyzed 6/8/93 6/8/93 6/8/93 6/8/93 6/10/93 6/8/93 <br /> Instrument Identification HP-2 HP-2 HP-2 HP-2 HP-2 HP-2 <br /> Surrogate Recovery, % 94 95 99 95 98 97 <br /> (QC Limrts = 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 /> Wendy Amundsen <br /> Laboratory Director 3060250 RES <>> <br /> • <br />