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I INTRODUCTION <br /> 1.1 Background <br /> The Regenesis Group (TRG) recently completed installation of a perimeter landfill gas <br /> (LFG) migration control system along the western boundary of the Forward Sanitary <br /> Landfill (FSL) in Manteca, California. This perimeter system was an expansion of an <br /> existing interior LFG collection and control system (GCCS). This perimeter expansion <br /> included installation of vertical LFG extraction wells, connection of these wells to the <br /> existing GCCS, and multi-level LFG monitoring probes. The construction included the <br /> following major work components: <br /> • Drill and install 13 vertical LFG extraction wells in soil near the property <br /> boundary <br /> ® Drill and install 39 multi-level LFG monitoring probes in soil near the property <br /> boundary <br /> • Construct polyvinyl chloride (PVC) lateral piping, with corrugated steel pipe <br /> (CSP) road crossing sleeves, to connect the new LFG extraction wells to an <br /> existing 18-inch HDPE vacuum header pipe buried in the landfill <br /> • Install LFG flow control wellheads on the LFG extraction well lateral pipes <br /> The project location is: <br /> Forward Sanitary Landfill <br /> 9999 S. Austin Road <br /> Manteca, California 95336 <br /> 1.2 Purpose <br /> 1.2.1 Perimeter LFG System <br /> The primary purpose of the addition of 13 vertical gas extraction wells to the existing <br /> GCCS is to intercept and control subsurface lateral LFG migration from the western side <br /> of the Landfill. The California Integrated Waste Management Board (CIWMB) and the <br /> Local Enforcement Agency (LEA) regulate the control of LFG at the FSL and approved <br /> the GCCS perimeter expansion design. <br /> EMCON/OWT <br /> N:\_landfil\AWI Austin Road-Forward\2004 SVE CQA\text\report\CQA report final.doc Rev.0,1/6/05 <br /> 1-1 <br />