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First <br /> Quarter 2012 <br /> Table 1 - Landfill Gas Perimeter Migration Monitoring Data Sheet <br /> Foothill Sanitary Landfill <br /> Monitoring Well Methane CO2 Oxygen Balance Pressure <br /> Probe (%-Vol %-Vol %-Vol (%-Vol) Inch WC Note <br /> SG-121 S 0.0 0.1 21.0 78.8 -0.020 1/17/2012 <br /> SG-1211 0.0 0.0 21.0 78.9 -0.150 to <br /> to <br /> SG-121 D 0.0 0.0 21.1 78.8 -0.750 " to <br /> SG-122 S 0.0 0.7 20.6 78.6 -0.010 1/19/2012 <br /> SG-1221 0.0 0.5 20.7 78.8 -0.250 it " <br /> SG-122 D 0.0 0.4 20.0 79.5 -0.800 it " <br /> SG-123 S 0.0 0.4 20.7 78.8 -0.050 1/19/2012 <br /> SG-1231 0.0 0.4 20.5 79.0 -0.300 1 to <br /> " <br /> SG-123 D 0.0 0.4 20.5 79.0 -0.750 " <br /> 11 <br /> SG-124 S 0.0 0.2 20.8 78.9 -0.100 1/19/2012 <br /> SG-1241 0.0 0.2 20.8 78.9 -0.400 of <br /> " <br /> SG-124 D 0.0 0.2 20.3 79.4 1 -0.750 " " <br /> SG-125 S 0.0 0.3 1 20.9 78.7 -0.040 1/19/2012 <br /> SG-1251 0.0 0.3 21.0 78.6 -0.350 to <br /> " <br /> SG-125 D 0.0 0.3 20.6 79.0 -0.900 " " <br /> Notes: <br /> Date 1/17/2012 1/18/2012 1/19/2012 <br /> Temp 48'F 52' F 48' F <br /> Barro Pressure 30.04 In Hg 30.04 In Hg 30.24 In Hg <br /> Conditions Sunny Sunny Cloudy <br /> Wind 3 MPH-N 2 MPH-N 5 MPH-ESE <br /> INSTRUMENT Gem 2000 <br /> Instrument Type IR Absorbtion <br /> Calibration Date 1/13/2012 <br /> Calibration Check 50% CH4 Surface conditions <br /> Barometric Pressure Wind <br /> Abbreviations: <br /> SG-"n" = Soil Gas Monitoring Well <br /> S= Shallow Probe, 1= Intermediate Probe, D = Deep Probe <br /> %-Vol = Percent by Volume <br /> Revised 6-25-12 <br /> N:\1 Foothill\LFG Migrat Monit\2012\1 Qtr\ San Joaquin County <br /> FH_First Qtr Data(Perim).xlsx Sheet 3 of 3 Public Works\Solid Waste <br />