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Ms. Christina Carbajal <br /> March 31, 2006 <br /> Page 4 <br /> Finally, during this reporting period, temperatures at LFG extraction wells were monitored and <br /> observed to range from 58 to 96 degrees Fahrenheit (see Table 3). These temperatures are <br /> considered to be in the low to normal range for anaerobic decomposition. SCS will continue to <br /> test LFG temperatures at each extraction well on a monthly basis in order to develop a database. <br /> This additional information should provide a better understanding of subsurface conditions at the <br /> site. <br /> LFG Collection System <br /> Visual observation of the LFG collection system is conducted twice per month. During these <br /> visits, observations are made to ensure no pipe breakages have occurred and condensate drain <br /> sumps remain functional. Minor repairs are completed-as required. <br /> On February 10 and 14, 2006, SCS performed monitoring of all accessible LFG condensate sumps <br /> defined as CSA-2 through 8 and CSF-18 and 19 and recorded the liquid level control pump cycle <br /> counters. During this reporting period, Condensate Sump Nos. CSF-9 through 17 were <br /> inaccessible due to inclement weather/excessive mud. SCS will resume monitoring these locations <br /> as site conditions improve. <br /> In addition, during pervious reporting periods, SCS observed and repaired several slight air supply <br /> and/or liquid leaks at several LFG condensate sumps. As requested by the Client, SCS has <br /> prepared a proposal dated August 5, 2004, and recommends that the existing air and <br /> condensate connections be modified to decrease the potential for future separations/air leaks. <br /> Finally, SCS routinely conducts a pressure drop survey (i.e., measurement of main pipeline <br /> pressure at various points throughout the LFG collection system). The results of this survey <br /> indicated that no major restrictions within the LFG collection system currently exist and all <br /> accessible extraction wells are receiving adequate vacuum. <br /> LFG Blower/Flare Station (BFS) <br /> Visual observations and testing of the LFG BFS was conducted on February 10, 14, 17, 26 and 27, <br /> 2006. During these visits, operating parameters are monitored and mechanical and electrical <br /> components are checked for workability. Throughout the reporting period, the BFS was set to <br /> operate continuously. BFS data is shown in Table 4. SCS understands the BFS operated as <br /> programmed throughout the reporting period with the exception of the following scheduled and <br /> unscheduled shutdowns: <br /> ® On February 9, 2006, SCS shutdown the BFS to help condensate to drain from the <br /> main pipelines to the sumps, upon completion of these activities,the BFS was restarted <br /> and normal operation verified. <br />