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i r <br /> i <br /> 3 ) Drill two (2) soil borings at the site to approximately 100-feet bgs <br /> using a cone penetrometer testing (CPT) drill rig (Figure 3). Collect <br /> a capillary zone soil sample and discrete depth groundwater samples <br /> from each soil boring. <br /> 4 ) Analyze one (1) capillary zone soil sample from each boring and up <br /> to three discrete depth groundwater samples from each boring at a <br /> CAL-EPA certified analytical laboratory for TPH-G, benzene, toluene, <br /> ethylbenzene and total xylenes (collectively known as BTEX), the <br /> fuel oxygenates MTBE, TBA, TAME, DIPE and ETBE, and the alcohols <br /> ethanol and methanol by EPA Method 8260. <br /> 5 ) Drill five soil borings to a depth of approximately 20-feet bgs and <br /> install a groundwater monitoring well in each boring. <br /> 6 ) Analyze one soil sample collected from each boring described in <br /> task 5 for TPH-G, BTEX, the fuel oxygenates MTBE, TBA, TAME, DIPE <br /> and ETBE, and the alcohols ethanol and methanol by EPA Method <br /> 8260. <br /> 7 ) Develop each monitoring well. <br /> 8 ) Collect groundwater samples from each monitoring well for <br /> analyses. <br /> f <br /> f <br /> 9 ) Analyze the groundwater samples at a CAL-EPA certified <br /> environmental laboratory for TPH-G, BTEX, the fuel oxygenates <br /> MTBE, TBA, TAME, DIPE and ETBE, and the alcohols ethanol a n d <br /> methanol by EPA Method 8260. <br /> 1 0) Survey the top of casing elevation of each well, and determine t h e <br /> groundwater flow direction and gradient beneath the site. <br /> 1 1 ) Prepare a report detailing the methods and findings of the soil a n d <br /> groundwater assessment. <br /> Details of the proposed SOW are presented below. <br /> TASK 1 - PREPARE A WORKPLAN <br /> Based on the site history and the analytical results of soil and { <br /> (y; groundwater samples collected during previous assessments, ASE <br /> 574 West Grand Line Road, Tracy, CA Workplan — June 2000 <br /> -3- <br />