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41 <br />! Sheet <br />•ifill Gas P ri-ireter 1:72pration Monitoring ■ _ <br />Date: 31 -Jan -10 <br />BY: M. Carroll <br />Monitoring Well <br />Probe(% <br />SG -121 S <br />Methane <br />-Vol) Note <br />0.0 <br />SG -121 <br />I <br />0.0 <br />SG -121 <br />D <br />0.0 <br />SG -122 <br />S <br />0.0 <br />SG -122 <br />I <br />0.0 <br />SG -122 <br />D <br />0.0 <br />SG -123 <br />S <br />0.0 <br />SG -123 <br />I <br />0.0 <br />SG -123 <br />D <br />0.0 <br />SG -124 <br />S <br />0.0 <br />SG -124 <br />I <br />0.0 <br />SG -124 <br />D <br />0.0 <br />SG -125 <br />S <br />0.0 <br />SG -125 <br />I <br />0.0 <br />SG -125 <br />D <br />0.0 <br />General Notes: <br />Vacuum required to take sample measured <br />at all probes w/ 0-100" we Magnehilic gauge <br />Vac required between 0.5" and 2" except as noted <br />INSTRUMENT Gem 2000 <br />Instrument Type IR Absorbtion <br />Calibration Date 31 -Jan -10 <br />Calibration Check <br />Barometric Pressure 29.69 " Hg <br />Abbreviations: <br />SG -"n" = Soil Gas Monitoring Well <br />S= Shallow Probe, i= Intermediate Probe, D = Deep Probe <br />%-Vol = Percent by Volume <br />Revised 2-5-10 <br />N:\1Foothili\LFGpedmMonit\2010\1Qtr\ San Joaquin County <br />1stQ Data (new Perim).xls Sheet 3 of 3 Public Works\Solid Waste <br />