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r <br />Sampling Equipment <br />interim gas sampling probes were used to monitor submfice gases <br />at the landfill perimeter. <br />F-Uh Probe consists of a _5460.t long, 3h -inch diameter stainless steel pipe, <br />z with %.i�ch holes <br />Staggered every 2 inches at the bottom fS inches to allow for gases -to migmd . into the Probes. A <br />pointed tip was welded to the end of the probe for better penetration. <br />A ball -valve and brass fitting were installed at the top of each probe to <br />facffitate b3trunitut hook-upcontain gas pressures and <br />._ to the probe. The valves were -left closed eke ept during monitoring <br />or Insti-aiment reading. Each probe is tagged wtth,a brass plate and identified as ,Gj?_, . <br />-bp-101% through <br />AGA -90 Landtcc In6m-red -Gas Analy= was used to monitor methane, carbon. dioxide. <br />(CO2), <br />and ,oxygen (02)levels at each probe location- The analyzer was calibrated for methane, col, and <br />0:1 pri or to use in the field- Calibration. logs are.included in this. rcporL <br />Gas Monitoring <br />Ambient air racasurements of methane, oxygen, carbon dio)dd-!;, and baromtjCp,=,. <br />take. ar c - ch g'as pro . locr.fion_ lhose readings _WC r -C recorded and - the . instr==t, Wem <br />�Onnccted to the pro be. "The valve was opened --wd &obc.Zas pressurtwas <br />Its asurcments were taken. <br />MIC mbe was then. purged for- two- pobe volume�, . Readings - w=* then emllected at <br />al*UxEulately 30- to 60-,wond jutervah-'ail ffl_a stable - reading was <br />-obtained-, 11ese <br />M'I�a­1 w•rI=ts of ineft. anc;, Oxygen. Carbon dioxide. and ambient barometric pressur-C wtm then <br />r&-�Ozdid. Monitoring was also conducted at vajous locations in <br />three building sites for the <br />presence Of XnCd=C. gas- Monitoring vras conducted at thc office trailer at _tbe entrance to the <br />landfi1l. trail � <br />er boxes- at the service shop, and traffer boxes at the tranYer building, These <br />10catiOnS were naonitor!ed -for my gas pockets at ithe fomndation and near aayOpw*g from the <br />:floor S1412. as a. •:. holeseleciiical canduit4 or Poor cracks. <br />LYSRvffi-IMS <br />Lysitnl_'crs were sampled using the following statidard protocol: <br />Prior to sampling lysimeters, the premre-vacuum equipment is checked. and cleaned. <br />23 -483949 -FO A23 JORM A-12 J* 14, 2000 <br />z000 XkWdft I* -c. <br />