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' Sequoia 680 Chesapeake Drive Redwood City,CA 94063 (415) 364-9600 FAX(415)364 9233 <br /> wily Analyt�eal 404 N Wiget Lane Walnut Creek CA 94598 (510) 988 9600 FAX(510)988-9673 <br /> 819 Sinker Avenue Suute 8 Sacramento CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> M r Ur r 4 z <br /> �I'M-West Client Project Its #2308 OO/Catellus-Stockton' ' Sampled` r N`0v,17, 1994- <br /> 1777 Botelho Dr, Ste 260 Sample Matrix Water Received Nov 18, 1994 <br /> Walnut Creek, CA 94596 Analysis Method EPA 5030/8015/8020 Reported Dec 5, 1994- <br /> Attention Arun Chemburkar First Sample# 411-1012 <br /> TOTAL PURGEABLE PETROLEUM HYDROCARBONS with BTEX DISTINCTION <br />' Reporting Sample Sample Sample Sample Sample <br /> Analyte Limit I.D. I.D. I.D. I.D. I.D. <br /> ug/L 411-1012 411-1013 411-1014 411-1015 411-1016 <br />' MW-1A(D) MW-2A MW-3A MW-4A MW-5A <br /> Purgeable <br />' Hydrocarbons 50 5,400 9,200 N D 72 N D <br /> Benzene 050 1,200 13 N D N D N D <br />' Toluene 050 54 27 N D N D N D <br /> Ethyl Benzene 050 ISO 240 N D N D N D <br /> Total Xylenes 050 100 1,500 N D 0 82 N D <br /> Chromatogram Pattern Gasoline Gasoline -- Unidentified -- <br />' Hydrocarbons <br /> C8-C12 <br /> Quality Control Data <br />' Report Limit Multiplication Factor 24 20 10 10 10 <br /> Date Analyzed 12/1/94 12/1/94 12/1/94 11/30/94 11/30/94 <br /> ' Instrument Identification GCHP-02 GCHP-17 GCHP-17 GCHP-17 GCHP-17 <br /> Surrogate Recovery, % 84 81 83 98 98 <br /> (QC Limits = 70-130%) <br /> Purgeable Hydrocarbons are quantitated against a fresh gasoline standard <br /> Analytes reported as N D were not detected above the stated reporting limit <br /> SEQUOIA ANA ICAL,#1210 Please Note Duplicate report <br /> Kenneth K. F Lee <br /> Laboratory Director <br />' 4111006 ERM <2> <br />