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PROPOSED ACTIONS <br /> • Conduct a feasibility study to evaluate the effectiveness of bioremediation of TPH as diesel at the site. This action will <br /> include: <br /> - Bioventing of OW-1, the horizontal vapor well in order to evaluate bioremediation of the shallow TPH-impacted soil. <br /> Monitor the CH4 and CO2 levels from the well on a quarterly basis, <br /> - Oxygenate the groundwater in the site area by setting a time-released oxygen source in all the monitoring wells with <br /> groundwater present. During the quarterly sampling, measure the dissolved oxygen (D.O.) content of the groundwater, and <br /> • Drill verification soil borings to evaluate the effectiveness of the interim corrective action after a minimum of one year <br /> i <br /> following the implementation of the bioremediation. <br /> • Continue quarterly groundwater sampling at all sampleable wells at the site. Analyze the samples for TPH as gasoline, TPH <br /> as diesel and BTEX. <br /> MZJ I 1-09-95/VDBF/95-0040.LF <br />