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M <br />4th Quarter 2012 <br />Harney Lane Landfill <br />Date: 10/19/2012 By: B Closs / S Kong <br />Ambient <br />aro <br />02 <br />(% by vol) <br />Balance <br />(% by vol) <br />Structure Foundation 1 <br />(Northern -most structure) <br />Temp <br />Press <br />General <br />Wind <br />Wind <br />(deg F) <br />(in -Hg) <br />Weather <br />Speed (MPH) <br />Direction <br />70 <br />30.04 <br />Cloudy <br />8 <br />NW <br />Location <br />Methane <br />(% by vol) <br />Carbon <br />Dioxide <br />(% by vol) <br />02 <br />(% by vol) <br />Balance <br />(% by vol) <br />Structure Foundation 1 <br />(Northern -most structure) <br />0.0 <br />2.2 <br />17.3 <br />80.5 <br />Structure Foundation 2 <br />0.0 <br />0.8 <br />18.1 <br />81.1 <br />Structure Foundation 3 <br />0.0 <br />0.7 <br />18.8 <br />80.5 <br />Structure Foundation 4 <br />0.0 <br />0.4 <br />19.1 <br />80.5 <br />Structure Foundation 5 <br />0.0 <br />0.3 <br />19.2 <br />80.5 <br />Structure Foundation 6 <br />0.0 <br />7.2 <br />9.8 <br />83.0 <br />Structure Foundation 7 <br />0.0 <br />1.4 <br />18.3 <br />80.3 <br />Structure Foundation 8 <br />0.0 <br />1.2 <br />18.4 <br />80.4 <br />Structure Foundation 9 <br />0.1 <br />0.6 <br />19.0 <br />80.3 <br />Structure Foundation 10 <br />0.1 <br />1.1 <br />18.8 <br />80.0 <br />Structure Foundation 11 <br />0.2 <br />0.2 <br />19.5 <br />80.1 <br />Structure Foundation 12 <br />0.0 <br />2.7 <br />17.6 <br />79.7 <br />Structure Foundation 13 <br />(Southern -most structure) <br />0.1 <br />1.8 <br />18.0 <br />80.1 <br />Note: these data represent the conditions in the aggregate base beneath the structural foundation slab of <br />these strurcures, measured through a tube inserted to the aggregate base through a vertical vent that <br />extends from below the slab through the building roof. These data do not represent the conditions in the <br />occupied area of the structure above the slab. <br />N:\1 Harney Lane\LFG Migration Monit\Repts 2012\4th Qtr\ <br />HL 4th Qtr 2012 Structure Monit Dataa.xls <br />Printed 10/19/2012 <br />