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Sequoia 680 Chesapeake Drive Redwood City CA 94063 (415) 364 9600 rAX(415) 364 9233 <br /> 1900 Bates Avenue,Suite L Concord CA 94520 (510) 686 9600 FAY,(510) 686 9689 <br /> Analytical 819 Striker Avenue Suite 8 Sacramento CA 95834 (9t6) 921 9600 FAX(916)921 0100 <br /> LGeocon Client Project Its 805 S Hutchins Sampled Nov 30, 1994 <br /> 3235 Sunrise Blvd , Suite 6 Sample Matrix Water Received Dec 1, 1994` <br />' Rancho Cordova, CA 95742 Analysis Method EPA 5030/8015/8020 Reported Dec 8, 1994 <br /> Attention Richard Walls First Sample # 412-0022 v <br /> TOTAL PURGEABLE PETROLEUM HYDROCARBONS with BTEX DISTINCTION <br /> Reporting Sample Sample Sample Sample Sample " <br />' Analyte Limit I D. 10 ID ID ID <br /> Ng/L 412-0022 412-0023 412-0024 412-0025 412-0026 <br /> MW-2 MW-3 MW-1 MW-4 MW-5 <br />' urges e <br /> Hydrocarbons 50 N D 250 N D N D 88 <br /> Benzene 050 ND ND ND ND ND <br /> Toluene 0 50 N D N D N D N D N D <br />' Ethyl Benzene 050 N D 075 N D N D N D <br /> Total Xylenes 050 N D N D N D N D N D <br /> Chromatogram Pattern Weathered -- Weathered <br /> t Gasoline Gasoline <br /> C6-C12 C6-CB <br /> ' Quality Control Data _ — --.--- <br /> Report Limit Multiplicatlon Factor 10 10 1 0 10 1 0 <br /> Date Analyzed 12/5/94 12/5/94 12/5/94 12/5/94 12/5/94 <br /> ' Instrument Identrficatlon GCHP-2 GCHP-2 GCHP-2 GCHP-2 GCHP-2 <br /> Surrogate Recovery, % 98 102 99 98 <br /> (OC Limits = 70-130%) <br /> 1 <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 Please Note <br /> FLAP #1624 *Matrix interference <br /> Jerillie Higgins ._ <br /> Project Manager <br /> 4120022 GEC <1 a <br />