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SEQUOIA ANALYTICAL <br /> - v 680 Chesapeake Drnre - Redwood Crty,CA 94063 <br /> (415)364-9600 • FAX(415) 364-9233 <br /> RESNA piertt Protect ID OW0148 02, Stockton Polk;e Sampled. Nav 16, 1993 <br /> 1710 Main Street Sample Matrix Sol Rex:ehW. Nov 18. 1993 <br /> �Escaion, CA 95320 Analysis Method EPA 5030/8015/8020 Reported: Dec 6, 1993 <br /> ' Attention: John Lane First Sam e� 3KC7901 <br /> TOTAL PURGEABLE PETROLEUM HYDROCARBONS with BTEX DISTINCTION <br /> Reporting Sample Sample Sample Sample Sample Sample <br /> Analyte Limit I.D. I.D. I.D. I.D. I.D. I.D. <br /> mg/kg 3KC7901 3KC7902 3KC7903 3KC79D4 3KC7905 3KC7906 <br /> SPSB1-s' SP-SBI-10 SP-SM2-V SP-SB2-1 r SP-SB3.6.V SP-SE3 5 <br /> Purgeable <br /> Hydrocarbons 1.0 N D N D 8,300 N D N D N.D. <br /> Benzene 0.0050 N.D N D N.D. 00070 N D N.D. <br /> Toluene 00050 N.D N D. 190 0 063 00080 N.D. <br /> Ia Ethyl Benzene 00050 N.D. N D. 200 0.025 N.D. N.D. <br /> Total Xylenes 00050 N D. N D 1,100 016 N D 00070 <br /> Chromatogram Pattern. -• -- Gas Gas Gas Gas <br /> Quality Control Data <br /> Report Limit <br /> Multiplication Factor. 1.0 10 500 10 1.0 1.0 <br /> Date Analyzed 11/28/93 11/28/93 11/29/93 11/29/93 11/28/93 11/28/93 <br /> Instrument Identification. GCHP-6 GCHP-6 GCHP-6 GCHP-6 GCHP-6 GCHP-6 <br /> Surrogate Recovery, % 86 92 116 93 97 95 <br /> (QC Limits = 70-130%) <br /> Purgeable Hydrocarbons are quantitated agumst a fresh gasoline standard <br /> Analytes reported as N D were not detected above the stated reporting hmd. <br /> ep EQUOIA <br /> ANALYTICAL <br /> Vickie Ta Tl <br /> age <br /> Project Manager 3KC7W1 WAT <t> <br />