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.I <br /> well will also allow for the monitoring of the vertical extent of <br /> groundwater contamination at that location (Figure 4) <br /> 5 ) Drill two soil borings to a depth of 19-feet bgs One of these <br /> borings will be located west of MW-13 across West Yosemite Avenue <br /> from the site to verify the horizontal extent (width) of the plume <br /> downgradient of the site The second will be located further <br /> downgradient of monitoring well MW-13 in Airport Way to verify the <br /> downgradient extent of contamination <br /> 6 ) Analyze one (1) capillary zone soil sample from each boring <br /> described in task 5 at a CAL EPA certified analytical laboratory f o r <br /> TPH-G, BTEX, oxygenates, alcohols and HVOCs by EPA Method 8 2 6 0 <br /> and TPH-D by modified EPA Method 3550/8015 <br /> 7 ) Install a groundwater monitoring well in each boring described in <br /> tasks 3, 4 and 5 <br /> 8 ) Develop each monitoring well <br /> 9 ) Collect groundwater samples from each monitoring well f or <br /> analyses <br /> 10) Analyze the groundwater samples at a CALrEPA certified <br /> environmental laboratory for TPH-G, BTEX, oxygenates, alcohols a n d <br /> HVOCs by EPA Method 8260 and TPH-D by modified EPA Method <br /> 3550/8015 <br /> 1 1 ) Survey the top of casing elevation of each well, and determine the <br /> groundwater flow direction in each zone <br /> 12) Prepare a report detailing the methods and findings of the soil a n d <br /> groundwater assessment This report will include tabulated <br /> analytical results, boring logs, and updated potentiometric surface <br /> maps, isoconcentrations maps, and geologic cross-sections <br /> 1 ) Install (1) extraction well in order to conduct needed pump a n d <br /> dual-phase extraction tests <br /> 2 ) Conduct step drawdown pumping tests <br /> Frank's One Stop Workplan — June 2000 <br /> -8- <br />