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Vim' a-m aq • ; s \ ' <br /> ES <br /> 397 MAT HEW STREET, SANTA CL-ARA, CALIFORNIA 9505p-3158 <br /> (408) 727-4277 <br /> 1 May 17, 3985 <br /> RCCENED <br /> IT Corporation MAY 12 0 1935 <br /> Engineering Department <br /> 1815 Arnold Drive IT ENVIROSCIENCE <br /> ]Martinez, CA 94553 <br /> ATT*i: Bob Galbraith <br /> Following are the results of our analyses for r.�, presence of <br /> volatile hydrocarbons due to gasoline and ethylene dibromide (EDB <br /> in three samples of hater received on April 25, 1985. <br /> For the analysis of volatile hydrocarbons due to gasoline, the <br /> samples were examined using, the purge and trap technique.' Final de- <br /> tection was by gas chromatography usin3 a flame ionization detector <br /> as well as a photoionization detector and a Carbop?;r�'B/3"/, SP-1500 <br /> column. <br /> The analytical procedure for EDB (ethylene dibromide) involved <br /> extracting the samples with iso-octane. The resulting extracts of <br /> iso-octane were examined by GLC using an elec U:on capture detector <br /> and a Carbopack B/1% SP-1000 column. Confirmation of positive residues <br /> was performed by GLC using an electron capture detector and an n-octane/ <br /> Porasil C column. <br /> 0.3 <br /> Results <br /> Stoner. Sample Micrograms er Liter <br /> 4 Lab. Identification Volatile Hydrocarbons <br /> Due to Gasoline Xylene isomers <br /> Proj #ME0004 (includes benzene, and Ethylene <br /> 4/25/85 _toluene and xylenes) Benzene Toluene ethyl benzene dibromid <br /> KAYO <br /> 28109 KYO-517, ,14-1 130,000. 15,000. 13,000. 13,000. 160. <br /> 28110 KYO-518, 11,9d-5 120,000. 16,000. 13,000. 15,000. 2.9 <br /> 28111 KYO-519, mu-8 4,700,000. 52,000. 240,000. 450,000. 330. <br /> J. <br /> ':1/'d r Patricia L. Murphy <br /> ' ti.J Tcn,r r••SWIS r fW.tnr1 Pr fr•,47v .moi, .r.q, - •4. :f. , rx <br />