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Sequoia 680 Chesapeake Onve Redwood Cry,CA 94063 (415) 364 9600 FAX(415) 364 9233 <br /> 404 N Wiget Lane Walnut Creek CA 94598 (510) 988 9600 FAX(510)988 9673 <br /> �� Analytical 819 Striker Avenue Suite 8 Sacramento CA 95834 (916) 921 %00 FAX(916)921 0100 <br /> `Y <br /> Oka Environm ­Client Client Project ID E>&ar #7-3708, Stockton, CA Sampled Feb 7, 1997 <br /> 3164 Gold Camp Dr, Suite 200 Sample Matrix Water Received Feb 11, 1997, <br /> Rancho Cordova, CA 95670 Analysis Method EPA 5030/8020, DHS Luft Reported Feb 20, 1997 <br /> Attention C Keoni Almeida First Sample# 702-0310 <br /> TOTAL PURGEABLE PETROLEUM HYDROCARBONS with BTEX DISTINCTION <br /> Reporting Sample Sample <br /> Analyte Limit I.D. I.D. <br /> pg/L 702-0310 702-0311 <br /> MW-1 MW-3 <br /> Purgeable <br /> Hydrocarbons 50 N D N D <br /> Benzene 050 N D 81 <br /> Toluene 050 N D N D <br /> Ethyl Benzene 050 N D N D <br /> Total Xylenes 050 N D N D <br /> Chromatogram Pattern -- -- <br /> Quality Control Data <br /> Report Limit Multiplication Factor 1 0 10 <br /> Date Analyzed 02/12/97 02/12/97 <br /> Instrument Identrfication GCHP-2 GCHP-2 <br /> Surrogate Recovery, % 106 102 <br /> (QC Limits = 60-140%) <br /> Purgeable Hydrocarbons are quantitated against a fresh gasoline standard <br /> Analytes reported as N D were not detected at or above the reporting iirnrL <br /> SEQUOIA ANALYTICAL, ELAP #1624 <br /> inda C Scilnelder <br /> Project Manager/Sacramento Laboratory <br /> 7020304 DLT <2> <br />