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TABLE 2 - Continued <br /> First Quarter 2017 <br /> Landfill Gas Perimeter Migration Monitoring Results <br /> Foothill Sanitary Landfill <br /> Monitoring Date: March 14, 2017 M nitoring Technician: M. Palis <br /> Monitoring Well Methane CO2 Oxygen Balance Pressure Note <br /> Probe %-Vol (%-Vol %-Vol (%-VolInch WC <br /> SG-125 S 0.0 0.3 19.0 80.7 -0.04 <br /> SG-1251 0.0 0.4 19.0 80.6 -0.05 <br /> SG-125 D 0.0 1 0.4 19.1 1 80.5 1 -0.08 <br /> Notes: <br /> Temperature: 52 °F <br /> Barrometric: Pressure: 29.90" Hg <br /> Conditions: Partly Cloudy Skies <br /> Wind Speed (MPH): 2 mph <br /> Direction: East Southeast <br /> INSTRUMENT: Gem 5000 <br /> Instrument Type: IR Absorbtion <br /> Calibration Date: March 14, 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:\1 Foothill\LFG Migration Monitoring\2017\1st Qtr\ San Joaquin County <br /> FH_1st Qtr LFG Perim Mig Monit 2017 Wells Sheet 3 of 3 Public Works\Solid Waste <br />