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The groundwater was sampled with a Teflon' point source bailer The samples were placed into <br /> the appropriate sample container with preservatives added and labeled The samples were stored <br />' in an cooler with ice and shipped to the BSK State-certified Analytical Laboratories in Fresno <br /> for chemical testing <br /> The chemical analyses performed on the samples included Total Petroleum Hydrocarbons as <br />' Diesel (TPH-D) by Method DHS GC/FID and Benzene, Toluene, Xylene, Ethylbenzene (BTXE) <br /> by EPA Method 5030 and 602M <br /> 1 7.0 ANALYTICAL RESULTS <br />' The results of the analysis of the groundwater samples are presented in Table 2 The laboratory <br /> data sheets and chain-of-custody documents are presented in Appendix A <br />' TABLE 2 <br /> ANALYTICAL RESULTS GROUNDWATER SAMPLES <br />' (Results in micrograms per liter ug/L) <br /> Sample TPH- Benzene Toluene Ethyl Total <br />' I D Diesel Benzene Xylenes <br /> MW-4 ND ND ND ND ND <br /> MW-5 ND ND ND ND ND <br /> MW-6 ND ND ND ND ND <br />' Detection 50 0 3 0 3 0 3 0 3 <br /> Limit <br />' N D = None Detected <br />' 8.0 FINDINGS <br /> 8 1 Subsurface Conditions <br />' The subsoils as encountered during the drilling of MW-5 and MW-6 generally consist of very <br /> stiff to hard silt with sand and silty clay to a depth of approximately 45 to 50 feet At a depth <br />' of 50 feet, a zone of very dense sand was encountered Below the sand zone, hard silt with sand <br /> and silty clay was encountered to depths of approximately 75 to 80 feet At a depth of 80 feet <br /> in well MW-5, silty sand was encountered to the total depth of 90 feet At a depth of 75 to 80 <br />' feet in well MW-6, sand was encountered to an approximate depth of 87 feet, where silty clay <br /> was encountered Refer to Figures 4 through 9 for additional description of subsurface <br /> conditions <br /> I <br /> 4 <br /> rAssociates <br />