Laserfiche WebLink
ground surface), fluctuating seasonally approximately 4 feet. The groundwater is <br /> unconfined. <br /> 3. Locations of Buildings and Structures Relative to the Migration Monitoring <br /> Perimeter <br /> Thre are no on—site structures, that is, no structures within the monitoring <br /> perimeter (Figure B-1). The migrant labor housing facility structures north west of <br /> the landfill are the closest structures located outside the monitoring perimeter. <br /> Currently three residential houses are located near but more than 100 feet away <br /> from the property boundary of HLSL. One house is on the northeast corner of the <br /> landfill and two newly built single family residential houses are west of the landfill. <br /> A utility storage building is also located southwest of the secondary site. <br /> 4. Adjacent Land Use and Inhabitable Structures Within 1000 feet of the disposal Site <br /> Land uses within 1,000 feet of the facility are primarily agricultural and low density <br /> residential (Figure B-1). <br /> 5. Man-Made Pathways <br /> There are no man made pathways for the transmissions�of landfill as off-site. <br /> p Y 9 <br /> 6. Nature, Age of Waste and Potential to Generate Landfill Gas (LFG). <br /> Special design features were not included in the perimeter monitoring wells based <br /> on the type of refuse disposed. Most of the refuse in place at the HLSL was <br /> placed during ownership by the City of Lodi. To the best knowledge of SWD, only <br /> household refuse has been disposed at HLSL and. <br /> C. STRUCTURE MONITORING <br /> There are no on-site structures to be monitored. Migrant labor housing structures <br /> northwest of the landfill are monitored'for LFG migration at the request of San Joaquin <br /> County Environmental Health Department. The structures are monitored by measuring <br /> the concentration of combustible gas in the vent pipe that extends from the structure's <br /> foundation sub-base through the roof. <br /> D. MONITORING PROCEDURES <br /> 1. Regulatory Limits <br /> Concentration of methane gas generated by the decomposition of refuse within the <br /> property boundary of HLSL will be monitored with the following requirements: <br /> Harney Sanitary Landfill County of San Joaquin <br /> Landfill Gas Monitoring Plan B-3 Department of Public Works <br /> Revised July 30,2009 Solid Waste Division <br />