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i <br /> 4 <br /> SEQUOIA ANALYTICAI. <br /> 1900 Bates Avenue a Suite LM • Concord California 94520 <br /> WCOW (415) 686-9600 0 FAX (415) 686-9689 <br /> Applied GeoSystems (Sacramento) Client Prolect ID Arca#2130-90-1%Stockton Sampled Jun 24, 1991 <br /> 4191 E Power Inn Rd Matrix Descnpt Sod Received Jun 25, 1991 <br /> Sacramento, CA 95826 Analysis Method EPA 5030/8015/8020 Analyzed Jun 25, 1991 <br /> Attention Eloise Frick First Sample# 106-0604 Reported Jun 27, 1991 <br /> TOTAL PETROLEUM FUEL HYDROCARBONS with BTEX DISTINCTION (EPA 8015/8020) <br /> Sample Sample Low/Medium B P Ethyl <br /> Number Description Hydrocarbons Benzene Toluene Benzene Xylenes <br /> mg/kg mg/kg mg/kg mg/kg mg/kg <br /> (Ppm) (Ppm) (Ppm) (Ppm) (ppm) <br /> 106-0604 S-30-Bt 690 1 7 12 89 60 <br /> 106-0605 S-45-Bl 1,400 13 75 31 170 <br /> 106-0606 S-55-Bt 520 64 35 13 66 <br /> I <br /> Detection Limits 50 025 025 025 025 <br /> Low to Medium Boiling Point Hydrocarbons are quantitated against a gasoline standard <br /> � <br /> lytes reported as N 0 were not present above the stated limit of detection Because matrix effects and/or other factors <br /> cared additional sample dilution,detection limits for this sample have been raised <br /> SEQUOIA ANALYTICAL <br /> jiJa R Malersteln <br /> ect Manager 1060603 APS <2> <br />