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TABLE 2 - Continued <br />Fourth Quarter 2017 <br />Landfill Gas Perimeter Migration Monitoring Results <br />Foothill Sanitary Landfill <br />Mnnitnrinn rata• C)ctnher 4 9n17 <br />Monitorina Technician: M. Palis <br />Monitoring Well <br />Probe(% <br />Methane <br />-Vol) <br />CO2 <br />(%-Vol <br />Oxygen <br />%-Vol(%-Vol) <br />Balance <br />Pressure Note <br />Inch WC <br />SG -125 S <br />0.0 <br />0.4 <br />20.1 <br />79.5 <br />-0.28 <br />SG -1251 <br />0.0 <br />0.1 <br />20.6 <br />79.3 <br />-1.45 <br />SG -125 D <br />1 0.0 <br />1 0.1 <br />20.6 <br />1 79.3 <br />-2.08 <br />Notes: <br />Temperature: 52 °F <br />Barrometric: Pressure: 30.00" Hg <br />Conditions: Sunny Skies <br />Wind Speed (MPH): 2 mph <br />Direction: West <br />INSTRUMENT: Gem 5000 <br />Instrument Type: IR Absorbtion <br />Calibration Date: September 4, 2017 <br />Calibration Check: 50% CH4 <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:\lFoothill\LFG Migration Monitoring\2017\4th Qtr\ San Joaquin County <br />FH_4th Qtr LFG Perim Mig Monit 2017 Wells Sheet 3 of 3 Public Works\Solid Waste <br />