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LANDFILL GAS MONITORING <br /> GEM 500 CALIBRATION AND PERTINENT DATA <br /> Date: V_70c)6 Site Name: <br /> Technician: Job No. <br /> WEATHER OBSERVATIONS <br /> Wind Speed: /—_3 MPH Wind Direction: ---510 Barometric Pressure' "Hg <br /> Air Temperature: 6D 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. S327 <br /> Calibration Gas: %CH4561,0 %CO2 U %02 �Z <br /> Time CH4 CO2 02 <br /> D7ss p 3 <br /> Post-monitorin Calibration Check <br /> Time I CH4 I CO2 02 <br /> j7c so, <br /> NOTES: <br /> Calibration Form GEM <br /> 12/12/03 9:08 AM <br />