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SEQUOIA ANALYTICAL <br /> 1900 Bates Avenue • Suite LM • Concord, California 94520 <br /> (510) 686-9600 • FAX (510) 686-9689 <br /> Caprealian Engineering, Inc Client Project ID Former Unocal Bulk Plant#0950,Stockton Sampled Feb 27, 1993 <br /> 2401 Stanwell Dr, Ste 400 Sample Matrix Water Received Mar 1, 1993 <br /> Concord, CA 94520 Analysis Method EPA 3510/3520/8015 Reported Mar 11, 1993 <br /> Attention Mardo Kaprealian, P E First Sample# 303-0009 <br /> TOTAL EXTRACTABLE PETROLEUM HYDROCARBONS <br /> Reporting Sample Sample Sample Sample Sample Sample <br /> Analyte Limit ID ID I.D ID ID ID <br /> pg/L 303-0009 303-0010 303-0011 303-0012 303-0013 303-0014 <br /> MW 1 MW 2* MW 3 MW 4 MW 5 MW 6 <br /> Extractable <br /> Hydrocarbons 50 N D 110 50 N D 4,000 N D <br /> Chromatogram Pattern Non Diesel Diesel& Diesel& <br /> Mixture Non Diesel Non Diesel <br /> (<C16) Mixture Mixture <br /> (<C14) (<C16) <br /> Qualdy Control Data <br /> Report Limit Multiplication Factor 10 10 10 10 10 10 <br /> Date Extracted 3/5/93 3/5/93 3/5/93 3/5/93 3/5/93 3/5/93 <br /> Date Analyzed 3/9/93 3/9/93 3/9/93 3/9/93 3/11/93 3/9/93 <br /> Instrument Identification HP-313 HP-3B HP-3B HP-313 HP-3A HP-36 <br /> Extractable Hydrocarbons are quantitated against a fresh diesel standard <br /> Y 4 9 <br /> Analytes reported as N D were not detected above the stated reporting limit <br /> PEAU A ANALYTICAL Please Note *The above sample does not appear to contain diesel Extractable <br /> Hydrocarbons are due to an undentofhed mixture in the CIO-C16 range <br /> r <br /> Cott A ie o <br /> Project Manage 3030009 KEI <3> <br />