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LANDFILL GAS MONITORING <br /> GEM 500 CALIBRATION AND PERTINENT DATA <br /> Date: b k l k7, bu Site Name: ' <br /> Technician: (1MtC' 11. 1 CV-e,, mob No. M'TD-W 155. Ob J b' <br /> WEATHER OBSERVATIONS <br /> Wind Speed:C MPH Wind Direction: Barometric Pressure:2jMrHg <br /> Air Temperature: S-� OF General Weather Conditions: <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. f i t � <br /> Calibration Gas: %CH4 ,9>° J %CO295- 1) %02 0, 6- <br /> Time <br /> , 6Time CH4 CO2 O2 <br /> Post- onitoring Calibration Check <br /> 9 Time CH4 CO2 02 <br /> NOTES: <br /> Calibration Form GEM <br /> 12t12/03 9:08 AM <br />