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LANDFILL GAS MONITORING <br /> GEM 500 CALIBRATION AND PERTINENT DATA <br /> Date: /2t 06 <br /> Site Name: <br /> Technician: Jab No. b72870,5;6( <br /> WEATHER OBSERVATIONS <br /> Wind Speed: MPH Wind Direction: 34--) Barometric Pressure: Woc <br /> Hg <br /> Air Temperature: Sb OF General Weather Conditions: dL-e <br /> CALIBRATION INFORMATION <br /> Pre-monitoring Calibration Precision Check <br /> Procedure: Calibrate the instrument. Make a total of three measurements by altemating zero air <br /> and the calibration gas. Record tl7e readings and calculate the average algebraic difference <br /> between the instrument reading and the calibration gas as a Percentage. The calibration <br /> Precision must be less than or equal to 2% of the calibration gas value. <br /> instrument Serial No.—F/5 j <br /> Calibration Gras: o/CH4 rQ 0/-0O2 _ p a/o02 <br /> Time CN4 CD2 <br /> oz <br /> P0sf-r'n0njtodrV Calibration Check <br /> Time CO2 <br /> j�CH4 <br /> � 02 <br /> NOTES: <br /> Catbratlon Forrn GEM <br /> IVI2103 9:08 AM <br />