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rAKX. FK1EDMAN & DD71VA, rte, <br /> ENVIRON'MSNTAL CHEMISTS <br /> Date of Report : March 18, 1988 <br /> Date Submitted: March 171 1988 <br /> ProJ"t1 Stockton Terminal <br /> FINGERPRZNT CRAAACTERIZATION <br /> BY CAPXL7,ARY "S CHROMATOoRAPHY <br /> a=2.1" <br /> SHLN-08-308 <br /> To Shell oil Company: The gas chromatographic trace was <br /> indicative of diesel, eluting from cA <br /> t1- <br /> C9 to 4"c25, with two "hump$" , The <br /> alkane maxim• .am+o of n-c12 aqu A-The <br /> TimeOil Ditch <br /> 3-14-88 <br /> at 10100 The gas chromatographic trace was <br /> indicative of heavily weathered <br /> gasoline, i , e, it was composed mostly of <br /> compound& eluting prior to n-C13, not <br /> dominated by the n-alkanes, but missina <br /> tkw eamronvn�w ■>_ug1ng prior to n-G <br /> that are characteristic of gasolinewhenfresh, ThAra A14en &:Tears to be a small <br /> amount of a heavier product (<10%) <br /> resembling a diesel , Thia heavier <br /> fraction seems to most closely resemble <br /> the Standard labeled "RCPN-08-310 To <br /> Time Oil Company" of all the standards <br /> SUpplied. This resemblance is <br /> characterized by a reasonably good fit <br /> when Comparing the relative abundances <br /> of the predominant alkanes in the <br /> sample . <br /> Time Oil Ditch <br /> 3-14-88 <br /> at 16100 The gas chromatographic trace was <br /> ' virtually identical to the sample <br /> labeled "Time 011 Ditch 3-14-88 at <br /> 10100" , <br /> l <br /> I <br />