ARCHIVED REPORTS_2010_13 - Laserfiche WebLink

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Sampling Equipment Inter7rn gas sampltng probes were used to monitor subsmficegases at the landfill Bach probe cons' of a S-f t to Yrinch d' Iterpe, with Perimeter. d 2 inches at Clic bottom 18 inches to allow for ess steel P= %-inch holes es to into the probes. A pointed tip was welded to +end of the probe for better etration'. A ball valve and biass fitdng.wm installed at the top of each probe to contain gas pressures and facilitate instrurnauhook-up to the probe.The valves were left closed c7cc t during monitoring or °msumment reading.Each probe is tagged with a brass plate and identified as "OP-1" through AGA-90 Landtec -red-Gas Analyzer was used to monitor methane. caeocm diode.(CO.), and oxygen(O,}levels at each probe location_The analyzer was calibrated for methane,COX,and 02 prior to use in the field_Calibration.logs are.included.in dfmreport. Gas.MonitoringArn - blent air measuremeras of methane, oxygen, carbon dioxides and barometric - taken at each were 4 gas be location. These readings were recorded and-the ' cw> was •4conn ` ected to the probe. 'The valve was opened and probe.gas pressummeasurements were taken. probe was than. purged for- two. probe volumes. Rcadirtgs'vtere thea tollat y 34- to nd iint :u uW..a Stable. . reading was .o • ed. m ants of madigrieoxygen, carbon diax ide, and ambient barometric pressure wee then - rde d- Monitoring was also conducted at various locations in building site for the presence of mediane.gas. Monitoring was conducted at the office trailer at the entrance to the trailer boxes- at the service shop, aiid trailer boxes at the transfer bxtikhng. 'These locat'ons were MQWWr4Cd for any gas packeU at the foundation and near any opening from the Boor 54ch as piping holes,electrical conduits,or Iloor cracks. LYSOAETERS Lysimct=were sampled using the following staridard protocol: 1. Prior to sampling lysimeters,the p vacuum equipment is checked and cleaned. 849--FA t1731oRM A-12 der.kr fitly 14,2000