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KLEIN FELDER <br /> 4 RESULTS <br /> 4.1 SAIL-GAS SURVEY <br /> lwere extracted and analyzed for TPH and BTEX. <br /> Soil-gas and ground water samples ersonnel in their mobile laboratory. <br /> Samples were analyzed on site by Tracer Research p les as shown on <br /> Petroleum hydrocarbon constituents were detected in six of the 15 slam from location n <br /> Table 3. The highest concentrations were detected in water1 toluene,36000 u, ethylbenzene <br /> (520,000 ug/ <br /> 1 TPH, 400,000 ug/1 benzene, 12,000 ug/ N. <br /> E. <br /> and <br /> 20 004 ug/1 xylene). Significantly lower concentrations were detected <br /> P obable later and <br /> These locations are all neard nemW�i�rj ollected during the soil-gas survey <br /> of hydrocarbons as detect ground <br /> 4.2 SOIL ASSESSMENT <br /> e bottom soil sample from each of the three soil borings was submitted to Enseco <br /> Th les were analyzed for TPH <br /> Analytical Laboratory for chemical analyses. The by EpA Method 8020; and <br /> + GC-FID {modified EPA method 8015); <br /> BTEX purgeable by alytical Laboratories/Enseco of West Sacramento, <br /> total organic lead by California An <br /> • rola. The laboratory is certified by the state of California for the above mentioned <br /> Cahfo <br /> analyses. <br /> etroleum hydrocarbon constituents were detected in the soil samples, with the <br /> No p le from B-3 This sample was collected <br /> exception of 5.5 ug/kg of toluene in the sample le in which <br /> approximately five feet south of soil-gas survey location M and is the only sample Anal ical <br /> Q indicated the presence of more than 1 ppmv volatile organ.cs. Yt <br /> field screening <br /> results are summarized on Table 3. <br /> 4.3 GROUND WATER ASSESSMENT <br /> - - - - - -- -- - California- Analytical_ <br /> One water sample from each well was submtttedeStwere analyzed for TPH <br /> Laboratories/Enseco for chemtcc A Method 56T an Sam Organic lead. Because MW-1 <br /> w pur geable by GC-FiD;BTEX by <br /> less than 50 feet from a sewer line, San Joaquin County required that a ground water <br /> 1S <br /> 6 AMA <br /> F15-90-101 <br /> copyright J990 Kleirfetder, Int• <br />