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TABLE 2 <br /> Third Quarter 2025 <br /> Landfill Gas Perimeter Migration Monitoring Results <br /> Foothill Sanitary Landfill <br /> Monitoring Date: 8/27/25 Certified By: K. ESPINOZA <br /> Monitoring Well Methane CO2 Oxygen Balance Pressure Note <br /> Probe (%-Vol) (%-Vol) (%-Vol) -Vol <br /> Inch WC <br /> SG-12 S 0.3 0.6 20.0 79.1 -0.87 <br /> SG-121 0.3 0.5 19.9 79.3 -0.64 <br /> SG-12 D 0.3 0.1 20.1 79.2 -0.89 <br /> SG-102 S 0.2 1.0 19.6 79.8 -1.80 <br /> SG-1021 0.2 0.6 19.4 79.7 -1.08 <br /> SG-102 D 0.2 0.4 19.5 79.3 -0.22 <br /> SG-103 S 0.2 0.4 20.1 79.7 -1.90 <br /> SG-1031 0.2 0.3 19.6 79.9 -0.40 <br /> SG-103 D 0.2 0.1 19.4 80.0 -0.32 <br /> SG-104 S 0.2 0.8 19.1 80.2 -2.04 <br /> SG-1041 0.2 0.1 20.0 79.7 -1.87 <br /> SG-104 D 0.2 0.5 19.1 79.9 -0.28 <br /> SG-105 S 0.2 0.9 19.5 79.9 -0.08 <br /> SG-1051 0.2 0.5 19.4 79.6 -0.05 <br /> SG-105 D 0.2 0.4 18.8 80.1 -0.89 <br /> SG-106 S 0.1 0.4 19.3 80.0 -1.76 <br /> SG-1061 0.2 0.3 19.7 79.8 -1.45 <br /> SG-106 D 0.2 0.4 19.5 79.8 -0.78 <br /> SG-107 S 0.1 0.5 19.6 79.2 -1.53 <br /> SG-1071 0.2 0.3 19.7 79.7 -0.35 <br /> SG-107 D 0.3 0.3 19.6 79.8 -0.20 <br /> SG-108 S 0.2 0.4 18.9 80.0 -1.86 <br /> SG-1081 0.1 0.3 18.5 81.1 -0.78 <br /> SG-108 D 0.1 0.2 19.1 80.7 -0.33 <br /> SG-109 S 0.2 0.3 20.1 79.6 -0.27 <br /> SG-1091 0.2 0.3 19.7 79.8 -0.67 <br /> SG-109 D 0.2 0.0 21.1 78.7 -1.62 <br /> SG-110 S 0.2 0.4 19.8 79.6 -0.31 <br /> SG-1101 0.2 0.5 20.0 79.5 -0.66 <br /> SG-110 D 0.2 0.0 20.6 79.1 -1.66 <br /> SG-111 S 0.1 0.5 19.9 79.5 -0.36 <br /> SG-1111 0.1 0.0 20.5 79.3 -0.63 <br /> SG-111 D 0.1 0.0 20.4 79.4 -1.22 <br /> SG-112 S 0.1 0.1 20.1 79.2 -0.04 <br /> SG-1121 0.1 0.0 20.5 79.4 -0.03 <br /> Revised 6-25-12 <br /> N:\1 Foothill\LFG Migration Monitoring\2025\3rd Qtr\ San Joaquin County <br /> FH_3rd Qtr LFG Perim Mig Monit 2025 Wells Sheet 1 of 3 Public Works\Solid Waste <br />