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Date: 5/22/2012 <br />By: B. Closs <br />Second <br />Quarter 2012 <br />Table 1 - Landfill Gas Perimeter Migration Monitoring Data Sheet <br />Foothill Sanitary Landfill <br />Monitoring Well <br />Probe <br />SG -121 S <br />Methane <br />%-Vol <br />0.1 <br />CO2 <br />%-Vol <br />0.0 <br />Oxygen <br />%-Vol <br />20.3 <br />Balance <br />%-Vol <br />79.6 <br />Pressure <br />Inch WC Note <br />-0.155 <br />SG -1211 <br />0.1 <br />0.0 <br />20.3 <br />79.6 <br />-0.110 <br />SG -121 D <br />0.2 <br />0.0 <br />20.2 <br />79.6 <br />-0.010 <br />SG -122 S <br />0.1 <br />0.2 <br />19.3 <br />80.4 <br />+0.030 <br />SG -1221 <br />0.2 <br />0.2 <br />19.6 <br />80.0 <br />+0.020 <br />SG -122 D <br />0.1 <br />0.1 <br />20.2 <br />79.6 <br />-0.020 <br />SG -123 S <br />0.0 <br />0.2 <br />19.4 <br />80.4 <br />+0.040 <br />SG -1231 <br />0.1 <br />0.3 <br />19.5 <br />80.1 <br />+0.040 <br />SG -123 D <br />0.2 <br />0.3 <br />19.5 <br />80.0 <br />+0.040 <br />SG -124 S <br />0.2 <br />0.2 <br />19.3 <br />80.3 <br />+0.010 <br />SG -1241 <br />0.3 <br />0.2 <br />19.4 <br />80.1 <br />+0.050 <br />SG -124 D <br />0.3 <br />0.2 <br />19.4 <br />80.1 <br />+0.070 <br />SG -125 S <br />0.3 <br />0.1 <br />19.3 <br />80.3 <br />+0.015 <br />SG -1251 <br />0.2 <br />0.2 <br />19.4 <br />80.2 <br />+0.050 <br />SG 125 D <br />Notes: <br />0.2 <br />0.2 <br />19.4 <br />80.2 <br />+0.055 <br />Date <br />5/22/2012 <br />Temp <br />72 *F <br />Barro Pressure <br />29.71 In Hg <br />Conditions <br />Sunny & Clear <br />Wind <br />4 MPH -N <br />INSTRUMENT Gem 2000 <br />Instrument Type IR Absorbtion <br />Calibration Date 5/18/2012 <br />Calibration Check 50% CH4 <br />Barometric Pressure <br />Surface conditions <br />Wind <br />Revised 6-25-12 <br />NA1Foothill\LFG Migrat Monit\2012\2Qtr\ San Joaquin County <br />FH -Second Qtr Data (Perim).xlsx Sheet 3 of 3 Public Works\Solid Waste <br />