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TABLE 6 <br /> Unsaturated Zone Soil Pore Gas T014 Monitoring Results <br /> Second Semester 2009 <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 /> N N Found PPB <br /> v/v <br /> 01 Single 0.7 0.5 16.6 2 68000 Toluene <br /> 02 Single 0.0 0.2 17.1 7 82 Freon 12 <br /> 03 Single 0.0 2.6 16.7 6 120 Freon 12 <br /> 04 Single 0.0 7.3 6.0 6 100 Freon 12 <br /> 05 Single 0.0 0.5 18.8 2 11 Toluene <br /> 06 Single 0.0 4.7 8.0 4 3400 Freon 12 <br /> 07 Single 0.0 0.3 18.7 7 170 Freon 12 <br /> 08 Single 0.0 0.7 19.4 8 500 Freon 12 <br /> 09 Single 0.0 0.2 20.0 2 6.6 Toluene <br /> 10 Single 1.7 4.5 0.6 8 1000 Freon 12 <br /> 11 Single 7.8 13.8 0.0 11 790 Freon 12 <br /> T#1 Soil Gas NT NT NT 12 1400 Freon 12 <br /> Trench#1 <br /> TO-14 Sampling Date: July 15, 2009 by SCS Engineers <br /> Monitoring Probe Sampling Date for Methane, Carbon Dioxide, and Oxygen: July 15, 2009. <br /> Soil gas trench data by County staff 7/15/09 <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 composition at all soil gas probes <br /> NS =Not sampled <br /> ND =Not detected <br /> Foothill Sanitary Landfill 23 Department of Public Works/Solid Waste <br /> 2"d Semester and Annual 2009 Groundwater Monitoring County of San Joaquin-January 31,2010 <br />