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LANDFILL GAS MONITORING <br />GEM 2000 CALIBRATION AND PERTINENT DATA <br />® Date: _1_��� — Site Name: <br />Technician: Job No. <br />WEATHER OBSERVATIONS <br />Wind Speed: _ _MPH Wind Direction: _ Barometric Pressure: 3o o"Hg <br />Air Temperature: 4,5-0 °F General Weather Conditions: _6 tn&c "( <br />CALIBRATION INFORMATION <br />Pre -monitoring Calibration Precision Check <br />Procedure: Calibrate the instrument. Make a total of three measurements by alternating zero air <br />and the calibration gas. Record the 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.�7� <br />Calibration Gas: %CH4 %CO2 0__.. %C)2 til--___ <br />Time CH4 CO2 -- T— - -- 02 <br />_-- <br />�.� <br />Post -monitoring Calibration Check <br />Time CH4 --�- CO2 - 02 <br />NOTES: <br />9 Calibration Form GEM <br />3,131/0611:54 AM <br />