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SEQUOIA ANALYTICAL 4� <br /> 680 Chesapeake Drive a Redwood City, CA 94063 <br /> (415) 364-9600 o FAX (415) 364-9233 ; �.� ., •� <br /> Aegis Environmental Consultants Client Project ID 92-733, Station 695 Sampled Aug 19, 1993 <br /> 1050 Melody Lane, Suite 160 Sample Matrix Water Received Aug 20, 1993 <br /> Roseville, CA 95678 Analysis Method EPA 5030/8015/8020 Reported Aug 27, 1993 <br /> Attention Sheila Richgels First Sample# 3HA3901 <br /> TOTAL. PURGEASLE PETROLEUM HYDROCARBONS with BTEX DISTINCTION! <br /> Reporting Sample Sample Sample Sample <br /> Analyte Limit I D I D I D. I D <br /> pg/L 3HA3901 3HA3902 3HA3903 3HA3904 <br /> MW-6 MW-18 MW-27 RW-1 <br /> Purgeable <br /> Hydrocarbons 50 220 N D 220 N D <br /> Benzene 050 N D N D N D N D <br /> Toluene 050 N D N D N D N D <br /> Ethyl Benzene 050 N D N D N D N D <br /> Total Xylenes 050 N D N D 0 54 N D <br /> Chromatogram Pattern Non Gas Gas <br /> Mix <br /> >C8 <br /> Quality Control Data <br /> Report Limit Multiplication Factor 25 1 0 10 1 0 <br /> Date Analyzed 8/24/93 8/24/93 8/24/93 8/24/93 <br /> Instrument Identification GCHP-18 GCHP-18 GCHP-18 GCHP-18 <br /> Surrogate Recovery, % 102 90 101 99 <br /> (OC Limits = 70-130%) <br /> Purgeable Hydrocarbons are quantitated against a fresh gasoline standard <br /> Analytes reported as N 0 were not detected above the stated reporting limit <br /> EQUOI-A�ANALYTICAL <br /> Vickie Tague <br /> Project Manager 3HA3901 AEG <1> <br />