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_ LANDFILL GAS MONITORING <br />GEM 2000 CALIBRATION AND PERTINENT DATA <br />Date: �9//low Site Name: mar <br />Technician: Job N0. OS- <br />zOGa _ <br />WEATHER OBSERVATIONS <br />Wind Speed: /-Y MPH Wind Direction: ,4� Barometric Pressure: 30,o"Hg <br />Air Temperature: SV 0 OF General Weather Conditions: C_t4,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. a2?.2 <br />Calibration Gas: %CH4" %CO2 3570 %02 -ZZ <br />Time I CH4 <br />Calibration Check <br />CH4 -_-- I-- <br />Calibration Form GEM <br />3/31/06 11:54 AM <br />CO2 <br />a <br />