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MONITORING RESULTS <br /> Landfill gas monitoring at the Corral Hollow Sanitary Landfill indicates that gas migration is <br /> occurring at four of the monitoring well locations. The County has addressed this issue by <br /> installing final cover over the entire landfill. In addition, the County has sent out a Request For <br /> Proposals (RFP) for design of a landfill gas control system. The proposals have been received <br /> and are currently in the process of being reviewed. The County will continue to monitor the <br /> probes for landfill gas quarterly. Effects of gas migration are minimal at this time due to the <br /> desolate location of the Corral Hollow Sanitary Landfill. The only residence in the area is <br /> approximately one mile from the site. <br /> ON SITE STRUCTURES <br /> A mobile trailer still remains on-site. This trailer is only utilized when work is being done at the <br /> landfill and shelter is needed for workers. Testing within the structure during this event showed <br /> 0% of the Lower Explosive Limit. <br /> S:\WES\CH\GAS\l STQU99G.WPD <br /> LA 21847F <br /> 4 <br />