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s <br /> wa <br /> i . <br /> *N <br /> ' orgar-ic compounds; tetraethyl lead (organic lead) and ethylene <br /> dibromide; <br /> Developing groundwater gradient contour maps using the newly <br /> collected water level data; and <br /> Genera:.ing a rept t that summarizes the chemical analyses and <br /> gradient data. <br /> i.a 2.0 CHEMICAL AbALYSIS <br /> Water camplea were collected from six monitoring wells, MW-1 through MW- <br /> 6. The sampling procedures are outlined :n Appendix A. The collected water was <br /> i. analyzed by BC Laboracories in Bakersfield, California for: <br /> total. petroleum hydrocarbons (TPH) gasoline (EPA Method 8015 <br /> s # <br /> �ws <br /> modified) and TPH diesel (EPA Hethod 8015 modified); <br /> benzene, toluene, xylene, ethylbenzene (BT%E) (EPA Method 8020); <br /> chlorinated organic compounds (EPA Method 601/602); and <br /> 4a� <br /> ` tetraethyl lead (TEL)(CDHS,LUFT) and ethylene dibromide (EDB) (as <br /> described in AB 1803). <br /> 4 <br /> The analytical results for the water samples with. detectable levels of <br /> i ' tested constituents are summarized in 'fable I. Results for all water.samples <br /> are attached as Ap;endix B. Previous water analyses frozi the initial site <br /> investigation (Dames 6, Moore, January. 1989) for MW-1 and MW-2 are also presented <br /> in Table I for comparison. <br /> The results of the water analyses indicate the following: <br /> BIONTL. 120 2 April, 1990 <br /> 'V. - .. <br />