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Date :3/6/24 TABLE 2 By : Ken Espinoza <br /> Time-1 .30 pm FirstQ uarter 2024 <br /> Structure Monitoring for Landfill Gas Results <br /> North County Sanitary Landfill <br /> Carbon Balance <br /> Building and Monitoring Location Methane Dioxide Oxygen Gas <br /> (% by vol) (% by vol) (% by vol) (% by vol) <br /> Office/Maint Building (Electrical Box) 0.0 0.1 20.4 79.5 <br /> Office/Main Building Interior (Downstairs Office) 0.0 0.2 20.3 79.5 <br /> Pumphouse (Electrical Conduit Interior) 0.0 0.1 20.3 79.6 <br /> Pumphouse (Electrical Conduit Exterior) 0.0 0.1 20.3 79.6 <br /> Pumphouse (Interior) 0.0 0.1 20.3 79.6 <br /> Recycling Center (Interior) 0.0 0.1 20.4 79.5 <br /> Recycling Center (Loading Dock) 0.0 0.1 20.4 79.5 <br /> Scalehouse (Electrical Conduit) 0.0 0.1 20.4 79.5 <br /> Scalehouse (Interior) 0.0 0.1 20.4 79.5 <br /> Field Notes <br /> Weather: Cloudy . Temp: 64 °F Wind: 8 MPH Barometric Pressure: 29.84' <br /> Instrument: GEM-5000 <br /> Instrument Calibration Date: 03/06/2024 <br /> Monitoring procedure: <br /> Monitoring probes were visualy inspected for any damages first. The Gem was used to purge probes for 1 min <br /> and then readings were recorded for another 1 min. <br /> N:\1 North County\LFG Migration Monitoring\Probes n Structures Reports\2024\1st Qtr\NC_1st Qtr LFG Perim Mig Monit 2024 Structures 3-6-2024 <br />