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Quarter <br />Monitoring <br />Point <br />Methane <br />(% by vol) <br />Carbon <br />Dioxide <br />(% by vol) <br />Oxygen <br />(% by vol) <br />Pressure <br />(" H2O) TO-15 <br />SG-1 0.2 0.5 18.5 -2.04 <br />SG-2AD 0.0 0.2 18.3 -1.26 <br />SG-2AI 0.0 0.4 15.0 -0.87 <br />SG-2AS 0.1 1.0 18.2 -0.55 <br />SG-3AD 0.0 0.1 19.4 -1.90 <br />SG-3AI 0.0 4.8 10.8 -0.38 <br />SG-3AS 0.0 2.9 18.0 -0.18 <br />SG-4 0.0 1.5 19.2 -0.31 <br />SG-5 0.0 0.6 19.8 -0.15 <br />SG-6AD 0.0 0.2 20.2 -1.13 <br />SG-6AI 0.0 0.7 20.5 -0.48 <br />SG-6AS 0.0 1.0 20.3 -0.16 <br />SG-7 0.0 0.8 19.9 -0.33 <br />SG-9 0.0 0.3 20.8 -0.34 <br />SG-10AD 0.0 0.1 20.4 -0.02 <br />SG-11AD 0.1 0.1 18.7 -1.19 <br />SG-11AI 0.0 0.3 20.1 -0.80 <br />SG-11AS 0.1 0.1 20.6 -0.45 <br />SG-1 0.2 0.4 18.1 -1.34 <br />SG-2AD 0.3 0.1 19.0 -0.78 <br />SG-2AI 0.0 0.4 13.2 -0.96 <br />SG-2AS 0.0 0.2 16.6 -0.88 <br />SG-3AD 0.0 0.2 9.8 -0.97 <br />SG-3AI 0.0 0.0 19.5 -0.54 <br />SG-3AS 0.0 5.2 15.1 -0.76 <br />SG-4 0.0 1.5 17.8 -1.83 <br />SG-5 0.0 0.5 19.3 -0.36 <br />SG-6AD 0.1 0.2 19.7 -0.79 <br />SG-6AI 0.1 0.6 19.9 -0.83 <br />SG-6AS 0.1 0.9 19.5 -0.43 <br />SG-7 0.0 1.4 17.6 -0.53 <br />SG-9 0.2 0.3 20.5 -0.03 <br />SG-10AD 0.0 0.4 19.4 -0.11 <br />SG-11AD 0.0 0.2 15.4 -1.03 <br />SG-11AI 0.0 1.6 13.6 -0.89 <br />SG-11AS 0.0 0.1 19.2 -1.01 <br />Notes: - not measured <br />Sampling Date: TO-15: 01/22/2025DQG <br />See Appendix I for TO-15 results <br />% by vol = percentage by volume <br />"H2O = inches of water <br />Second <br />(5/6/25)See Appendix I <br />First <br />(1/22/25)See Appendix I <br />Table 6 <br />First Semiannual 2025 <br />nsaturated Soil Pore Gas TO 5 Monitoring Results <br />Foothill Sanitary Landfill <br />RI