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TABLE 5 <br /> UNSATURATED ZONE SOIL PORE GAS T014 MONITORING RESULTS <br /> FIRST SEMESTER 2012 <br /> NORTH COUNTY RECYCLING CENTER AND SANITARY LANDFILL <br /> Highest <br /> Methane Carbon Concentration <br /> Soil Gas Content Dioxide Oxygen Number of Found PPB VOC of Highest <br /> SG Well Probe % % % Compounds v/v Concentration <br /> 01 Deep 0 0.6 17.8 3 13 Acetone <br /> 03 Deep 0 1.6 16.4 1 3 14 Acetone <br /> 06 Single 26.7 28.4 0 24 450 Acetone <br /> TO-14 Sampling Date: April 12, 2012 by SCS Engineers <br /> Monitoring Probe Sampling Date for Methane, Carbon Dioxide, and Oxygen: May 17, 2012. <br /> Note: Sampling protocol provides for sampling from the one probe at each well that is 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 /> I <br /> North County RC&SL Public Works/Solid Waste <br /> 1s`Semester 2012 Groundwater Monitoring 15 County of San Joaquin—July 26,2012 <br />