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LANDFILL GAS MONITORING <br />GEMaCZCALIBRATION AND PERTINENT DATA <br />Date: Site Name: / <br />Technician: ��lCa''tl'I�',�°� Job No. M_aa jam, <br />WEATHER OBSERVATIONS <br />Wind Speed: MPH Wind Direction: Barometric Pressure Ig <br />Air Temperature: (54: -- OF General Weather Conditions: <br />CALIBRATIONO• • <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 Noc__ —1 <br />Calibration Gas: %CH4 j6%CO2 %02 <br />Post -monitoring Calibration Check <br />CO2 1 02 <br />Calibration Form GEM ' <br />12/12/03 9:08 AM <br />