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r Ms. Christina Carbajal April 24,2006 Page 5 SCS understands the BFS operated as programmed throughout the reporting period with.the exception of the foll.owi n.g scheduled and unscheduled.shutdowns: • On March 22, 235 29 and 30, SCS was notified by the Automatic Dialer System (ADS) of a BFS shutdown. Upon arrival, SCS observed the shutdowns were attributed to a high exhaust gas temperature. On each occasion,the BFS was restarted, flow and temperature controller adjusted and normal operation verified. • On March 26, 2006, SCS was notified by the ADS of a BFS power failure shutdown. Upon arrival the .fol.lovvAng day, SCS reset necessary controls,restarted the BFS and verified proper operation. On March 8,20061 SCS performed monthly BFS Condensate Storage Tank Carbon Vent VOC breakthrough testing. Photo Ionization.Detector(PID) results indicated that no VOC.'s were. detected at the in..let and outlet of the carbon.vent. Also,on March 29, 2006, SCS performed Hydrogen Sulfide (H2S)monitoring of the BFS as required by the SJVAPCD. Results of this testing indicated that 3 parts per million(ppm) T4ZS was detected. The next required quarterly testing is to be performed by the month of June 2006. In addition, as previously reported, SCS observed several areas of paint on the upper portion of the flare stack., wh.ich,bane begun,to discolor and/or flake off the exterior surface. SCS will continue to inspect these areas and make further recornmenda.tions as necessary. Finally, duriztg the reporting period, the flare exit gas temperature was observed to remain above the SJVAPCD 1400 degree Fahrenheit prescribed operating criteria. The lowest flare exit gas temperature observed by SCS during our site visits was approximately 1593 degrees Fahrenheit. All other operating parameters remained within acceptable operating limits. Site Surface Observation Visual observation of the landfill surface along the extent of the extraction system is also performed on a monthly basis. Observations for erosion, surface cracks (that might allow LFG to escape or promote air intrusion)and settlement around wells, laterals and main pipelines are conducted. During this reporting period, no settlement that might adversely impact(e.g.. allow condensate accumulation such that a complete blockage could occur)the LFG collection system operation was observed,with the exception of the previously mentioned area of flooding on the Austin section side of the landfill.