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TABLE 2 - Continued <br />Second Quarter 2017 <br />Landfill Gas Perimeter Migration Monitoring Results <br />Foothill Sanitary Landfill <br />Monitoring Date: June 13, 2017 <br />Monitorinq Technician: M. Palis <br />Monitoring Well <br />Probe(% <br />Methane <br />-Vol) <br />CO2 <br />(%-Vol <br />Oxygen <br />%-Vol <br />Balance <br />%-Vol <br />Pressure Note <br />Inch WC <br />SG -125 S <br />0.0 <br />0.2 <br />18.7 <br />81.1 <br />-0.05 <br />SG -1251 <br />0.0 <br />0.3 <br />19.1 <br />80.6 <br />-0.06 <br />SG -125 D <br />0.0 <br />0.3 <br />19.0 1 <br />80.7 <br />1 -0.10 <br />Notes: <br />Temperature: 62 °F <br />Barrometric: Pressure: 29.90" Hg <br />Conditions: Sunny Skies <br />Wind Speed (MPH): 4 mph <br />Direction: East Northwest <br />INSTRUMENT: Gem 5000 <br />Instrument Type: IR Absorbtion <br />Calibration Date: June 13, 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:\1Foothill\LFG Migration Monitoring\2017\2nd Qtr\ San Joaquin County <br />FH_2nd Qtr LFG Perim Mig Monit 2017 Wells Sheet 3 of 3 Public Works\Solid Waste <br />