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} <br /> 3 ) Drill one (1) soil boring at the site to a depth of approximately 45- <br /> feet <br /> 5- <br /> feet bas near former boring CPT-1 and install a groundwater <br /> ID <br /> monitoring well in the boring. <br /> 4) Drill one soil boring to a depth of 18-feet bgs within 10-feet of <br /> n� <br /> toriQ groundwater extraction well in <br /> nzoniwell M«r-2 and install a <br /> the boring. <br /> 5 ) Drill one soil boring to 16-feet bgs and an air sparging well In <br /> the boring. <br /> 6 ) Drill two soil borings at the site to a depth of 6-feet bus and install <br /> vapor extraction wells in the borings. <br /> 7 ) Analyze one soil sample collected from each boring described above <br /> at a CAL EPA certified analytical laboratory for TPH-G, benzene, <br /> toluene, ethylbenzene and total xylenes (collectively known as BTEX) <br /> and the fuel oxygenates MTBE, TBA, TAME, DIPE and ETBE by EPA <br /> Method 8260. <br /> 8 ) Develop each new well using surge block agitation and evacuation <br /> with pumps and/or bailers. <br /> 9 ) Collect groundwater samples from each monitoring well f or <br /> analyses. t <br /> 10) Analyze the groundwater samples at a CAL-EPA certified <br /> environmental laboratory for TPH-G, BTEX, and the fuel oxygenates <br /> MTBE, TBA, TAME,-DIPE and ETBE by EPA Method 8260. <br /> 1 1 ) Survey the top of 'casing elevation of each well, -and determine the <br /> groundwater flow direction and gradient beneath the site. <br /> 1 12) Conduct step drawdown and constant rate pumping tests for the <br /> site. <br /> 13) Conduct a soil vapor extraction test for the site. <br /> 14) Conduct an air sparging test for the site. <br /> 15) Prepare a report detailing the methods and findings of the soil and <br /> groundwater assessment. <br /> 574 West Grand Line Road, Tracy, CA Workplan April 2001 <br /> -4- j <br />