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CONTENT <br /> 1.0 OBJECTIVE.......................................................................................................................2 <br /> 2.0 BACKGROUND .................................................................................................................2 <br /> 3.0 MONITORING PERIMETER NETWORK...........................................................................2 <br /> I. SOIL GAS WELL....................................................................................................................2 <br /> A. Well Location..................................................................................................................2 <br /> B. Well Spacing...................................................................................................................2 <br /> C. Well Details ....................................................................................................................3 <br /> D. Well Construction ...........................................................................................................3 <br /> E. Non-Perimeter Monitoring Soil Gas Wells.......................................................................3 <br /> II. DESIGN CONSIDERATIONS ............................................................................................4 <br /> A. Site Soil Conditions.........................................................................................................4 <br /> B. Hydrogeologic Conditions...............................................................................................4 <br /> C. Locations of Buildings and Structures Relative To The Migration Monitoring Perimeter..4 <br /> D. Adjacent Land Use and Inhabitable Structures Within 1000 feet of the disposal Site......4 <br /> E. Man-Made Pathways......................................................................................................4 <br /> F. Nature, Age of Waste and Potential to Generate Landfill Gas (LFG). .............................5 <br /> III. ON-SITE STRUCTURE MONITORING..............................................................................5 <br /> IV. MONITORING PROCEDURES..........................................................................................5 <br /> A. Monitoring Methods........................................................................................................5 <br /> B. Frequency ......................................................................................................................6 <br /> C. Reporting........................................................................................................................6 <br /> TABLES <br /> Table 1 — Soil Gas Well Sampling Intervals <br /> Table 2 — Soil Gas Wells - Depth <br /> FIGURES <br /> Figure 1 —Migration Monitoring Perimeter Boundary Site Map <br /> Figure 2 —Triple Probe Soil Gas Monitoring Well <br /> Figure 3 — Probe Detail-Triple Probe Soil Gas Monitoring Well <br /> Figure 4— Probe Installation Inside Well Enclosure <br /> APPENDICES <br /> Appendix A—Gas Monitoring Data Sheets <br /> Appendix B—Well Logs (Existing Wells) <br /> Foothill Sanitary Landfill County of San Joaquin <br /> Landfill Gas Monitoring Plan Department of Public Works <br /> Solid Waste Division <br />