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TABLE 5 <br /> Unsaturated Zone Soil Pore Gas T014 Monitoring Results <br /> Second Semester 2010 <br /> Foothill Sanitary Landfill <br /> SG Soil Gas Methane Carbon Oxygen Number of Highest VOC of Highest <br /> Well Probe Content Dioxide (%) Compounds Concentration Concentration <br /> (q°) N Found PPB <br /> v/v <br /> 01 Single 0.2 0.3 19.4 13 8800 Toluene <br /> [:E2 Single 0.0 0.1 20.4 6 22 Freon 12 <br /> 03 Single 0.0 2 18.8 6 31 Freon 12 <br /> 04 Single 0.0 2.3 18.2 6 21 Freon 12 <br /> 05 Single 0.0 0.4 20.2 2 10 Acetone <br /> 06 Single 0.0 3.5 15.7 5 810 Freon 12 <br /> 07 Single 0.0 0.4 19.9 7 120 Freon 12 <br /> 09 Single 0.0 0.3 20.4 3 10 Acetone <br /> 10 Single 0.0 3.6 10 6 350 Freon 12 <br /> 11 <br /> Single 0.0 13.3 4.7 9 210 Freon 12 <br /> TO-14 Sam lin Date: September 3, 2010 by SCS Engineers <br /> Monitoring Probe Sampling Date for Methane, Carbon Dioxide, and Oxygen: September 3, 2010. <br /> Note: Sampling protocol provides for sampling from the one probe at each well that most likely to have the <br /> highest VOC concentration. See Appendix J for major gasses com osition at all soil gas probes <br /> NS = Not sampled <br /> ND= Not detected <br /> Foothill Sanitary Landfill 19 Department of Public Works/Solid Waste <br /> 2ntl Semester and Annual 2010 Groundwater Monitoring County of San Joaquin—January 31,2011 <br />