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TABLE 2 <br /> First Quarter 2025 <br /> Landfill Gas Perimeter Migration Monitoring Results <br /> Foothill Sanitary Landfill <br /> Monitoring Date: 1/22/25 Certified By: K. Espinoza <br /> Monitoring Well Methane CO2 Oxygen Balance Pressure Note <br /> Probe (%-Vol (%-Vol %-Vol) (%-Vol) (Inch WC <br /> SG-12 S 0.0 0.6 20.2 79.2 -0.30 <br /> SG-121 0.0 0.5 20.3 79.2 -0.27 <br /> SG-12 D 0.0 0.3 20.3 79.4 -0.25 <br /> SG-102 S 0.0 0.6 20.2 79.2 -0.63 <br /> SG-1021 0.0 0.8 20.0 79.2 -0.36 <br /> SG-102 D 0.0 0.5 20.2 79.3 -0.73 <br /> SG-103 S 0.0 0.3 20.4 79.3 -0.56 <br /> SG-1031 0.0 0.4 20.5 79.1 -0.37 <br /> SG-103 D 0.0 0.1 20.9 79.0 -0.76 <br /> SG-104 S 0.0 0.2 18.7 81.1 -0.19 <br /> SG-1041 0.0 0.1 20.9 79.0 -0.75 <br /> SG-104 D 0.0 0.5 20.2 79.3 -0.79 <br /> SG-105 S 0.0 0.6 19.9 79.5 -0.28 <br /> SG-1051 0.0 0.7 20.3 79.0 -0.58 <br /> SG-105 D 0.0 0.2 20.9 78.9 -0.77 <br /> SG-106 S 0.0 0.1 21.0 78.9 -0.49 <br /> SG-1061 0.0 0.2 20.7 79.1 -0.55 <br /> SG-106 D 0.0 0.2 20.7 79.1 -0.86 <br /> SG-107 S 0.0 0.3 20.2 79.5 -0.03 <br /> SG-1071 0.0 0.3 20.5 79.2 -0.21 <br /> SG-107 D 0.0 0.2 20.5 79.3 -0.51 <br /> SG-108 S 0.0 0.2 20.1 79.7 -0.23 <br /> SG-1081 0.0 0.4 19.8 79.8 -0.15 <br /> SG-108 D 0.0 0.1 20.4 79.5 -0.65 <br /> SG-109 S 0.0 0.3 20.1 79.6 -0.12 <br /> SG-1091 0.0 0.3 19.6 80.1 -0.24 <br /> SG-109 D 0.0 0.2 20.3 79.5 -0.53 <br /> SG-110 S 0.0 0.4 20.3 79.3 -0.02 <br /> SG-1101 0.0 0.3 20.5 79.2 -0.04 <br /> SG-110 D 0.0 0.0 21.1 78.9 -1.09 <br /> SG-111 S 0.0 0.3 20.5 79.2 -0.26 <br /> SG-1111 0.0 0.5 20.3 79.2 -0.08 <br /> SG-111 D 0.0 0.3 20.7 79.0 -0.45 <br /> SG-112 S 0.0 0.5 20.4 79.1 -0.08 <br /> SG-1121 0.0 0.3 20.8 78.9 -0.04 <br /> SG-112 D 1 0.0 1 0.4 20.3 79.3 -0.48 <br /> Revised 6-25-12 <br /> NA1Foothill\LFG Migration Monitoring\2025\1st Qtr\ San Joaquin County <br /> FH_1st Qtr LFG Perim Mig Monit 2025 Wells Sheet 1 of 3 Public Works\Solid Waste <br />