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SEQUOIA ANALYTICAL <br /> ALYTIC�►L <br /> qqW1900 Bates Avenue • Suite LM • Concord California 94520 <br /> (510) 686-9600 • FAX (510) 686-9689 <br /> -West Client Project ID #1572 01/Catellus, Stockton Sampled Mar 5, 1993 <br /> 1777 Botelho Dr, Ste 260 Sample Matrix Water Received Mar 5, 1993 <br /> Walnut Creek, CA 94596 Analysis Method EPA 3510/3520/8015 Reported Mar 17, 1993 <br /> Attention Bruce Pfaff First Sample# 303-0206 <br /> 1 <br /> TOTAL EXTRACTABLE PETROLEUM HYDROCARBONS <br /> Reporting Sample Sample Sample Sample <br /> Analyte Limit I.D. I D. I D. E.D. <br /> Ng/L 303-0206 303-0207 303-0208 303-0209 <br /> MW 1A MW 2A MW 3A MW 4A <br /> Extractable <br /> Hydrocarbons 50 7,100 N D N D N D <br />'Chromatogram Pattern Diesel and - <br /> Non-Diesei <br /> Mixture <br />' (<Ct4) <br /> 1 <br /> 1 <br /> Quality Control Data <br /> Report Limit Multiplication Factor 20 10 10 10 <br /> Date Extracted 3/12/93 3/12/93 3/12/93 3/12/93 <br /> Date Analyzed 3/16/93 3/15/93 3/15/93 3/15/93 <br /> Instrument Identification HP-313 HP-36 HP-013 HP-38 <br /> Extractable Hydrocarbons are quantitated against a fresh diesel standard <br />' Analytes reported as N D were not detected above the stated reporting limit <br /> QUOIA A_NIL.YTICAL <br /> l ' <br /> Kenneth K F Lee <br /> Laboratory Director 3030201 ERM <3> <br />