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TABLE 7 <br /> Unsaturated Zone Soil Pore Gas T014 Monitoring Results <br /> First 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 /> N N Found PPB <br /> (v/v) <br /> 01 Single 0.4 0.9 19.3 2 76000 Toluene <br /> 02 Single 0.0 1.2 10.7 4 710 Freon 12 <br /> 03 Single 0.0 2.1 18.9 5 36 Freon 12 <br /> 04 Single 0.0 3.5 18.1 6 26 Freon 12 <br /> 05 Single 0.0 1.0 20.2 4 62 Acetone <br /> 06 Single 0.0 5.4 9.9 4 1900 Freon 12 <br /> 07 Single 0.0 0.8 19.6 4 110 Freon 12 <br /> 0 08 Single 0.0 2.0 19.0 3 440 Freon 12 <br /> 09 Single 0.0 0.8 20.1 4 13 Ethanol <br /> 10 Single 0.0 5.9 3.0 6 890 Freon 12 <br /> 11 Single 0.7 15.4 0.0 10 650 Freon 12 <br /> T#1 Soil Gas 17.1 23.2 0.5 14 1600 Freon 12 <br /> Trench#1 <br /> TO-14 Sampling Date: February 2, 2010 by SCS Engineers <br /> Monitoring Probe Sampling Date for Methane, Carbon Dioxide, and Oxygen: February 2, 2010. <br /> Soil gas trench data by County staff 2/2/10 <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 20 Department of Public Works/Solid Waste <br /> 1s`Semester 2010 Groundwater Monitoring County of San Joaquin-July 21,2010 <br />