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u <br />Interi.m gas sampling probes were used to monitor submfice gases at the <br />landfill perimeter. <br />Each Probe consists of <br />• •along, rdiameterr <br />rr_ <br />holes <br />migratestaggered every 2 inches at the bottom I'S inches to allow for gwes -to - <br />r ♦ the probes. A <br />pointed !• was welded to the end of r probe • better Penetration. <br />:aa rat: • • ' � • ,• <br />r � <br />AGA -90 Landtec h&a-.rcd - Cras A ' nalyzer was used to Monitor Methane, Carbcm. dio)dde. (CO:,), <br />f•' oxygen each probe l•w •i r <br />rWas calibrated for Methane, C04, and <br />• pdor to use in the • a Calibration.logs:•• in <br />Gasmollitoring <br />Ambient air ne tau -_= of methane, • • carbon r t •(. <br />pressure <br />taken at e:ach 'gas probe •w•ar- Those zmdin=t <br />=nn=tcd to . - the probe. * Thc valve was opened and probe _Sas <br />presgre measurements wac takciL <br />a <br />Th,-. probe r..Nr purged : ..a • �: probe volumes. . <br />r n • sa _ 1 to 60 -second it N rcr •a stable <br />ira&g Twas <br />t r V. Ir is t <br />ese <br />Meas"ureIntntsOf Xnathane <q7gen,W. f i 1 dioxide, and • at Mrr barometric pressure Vitre tr N <br />recorded� Monitoring was also conducted at vadous locations in <br />• • <br />r2 building :..s • the <br />rr.. f• r. YMonitoringconducted : <br />trailer at the =tranCe to the <br />I=dfffl, uailci boxes- at the service shop, a�d W44= b6ces at the Umnsfer building. These <br />10CItiOns Weremonitoredfor anypmkets at.tfie'fOUndatiOn <br />and near r • f. t tg fmm the <br />:floor such as piping holes, electrical conduks, or Iloor cracim <br />1- Prior to sampling Iysimeters, the pr='urc-vacuum cgWpment is checked and cl=ed. <br />849 -FO 1\23JORM A-12 <br />zM • 6 - <br />duty 14, 2000 <br />