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LANDFILL GAS MONITORING <br /> GEM 500 CALIBRATION AND-PERTINENT DATA <br /> Date: ._ ��rX� Site Name: 07-70 <br /> Technician: Job No, _y-�- <br /> WEATHER OBSERVATIONS <br /> Wind Speed. MPH Wind Direction:— Barometric Pressure��Hg <br /> Air Temperature: 2, °F General Weather Conditions: s . <br /> CALIBRATION INFORMATION <br /> Pre-monitoring Calibration Precision Check <br /> Pm-^Odura_ Calibrate the instrument. Make a total of three measurements by altemafing zero air <br /> and the calibration gas. Record the readings and calculate the average algebraic diftrence <br /> between the instrument reading and the callbratfon gas as a percentage_ The calibration <br /> Precision must be less than or equal to 236 of the calibration gas value. <br /> Instrument Serial No, - <br /> Calibration Gas: %CH4 ,D %CQ2 _3:5,-Q %02_ e <br /> ?irne CH4 Cd2 , <br /> 02 <br /> Past-mOnitorin Calibration Check <br /> Time CHS& CO2 O2 <br /> NOTES <br /> Caiib bon Form GcM <br /> 12J12/03 9:06 AM <br />