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I 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 />11 <br />CONTENTS <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 Depths.................................................................................................................... 3 <br />D. Well Construction............................................................................................................ 3 <br />E. Non -Perimeter Soil Gas Monitoring Wells.......................................................................3 <br />II. DESIGN CONSIDERATIONS............................................................................................3 <br />A. Local Soil And Rock Conditions...................................................................................... 4 <br />B. Hydrogeologic Conditions............................................................................................... 4 <br />C. Locations of Buildings and Structures Relative To The Migration MonitoringPerimeter... 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)...............................4 <br />III. ON-SITE STRUCTURE MONITORING..............................................................................5 <br />A. Scale House Interior air: Electrical conduit entry point within the building ....................... 5 <br />B. Materials Recovery Facility Interior air: Interior of container loading dock wall (Wall) near <br />thebase of wall...................................................................................................................... 5 <br />C. Office and Maintenance Building Interior air: Electrical conduit entry point within lower <br />office....................................................................................... ............................................... 5 <br />D. Pump House Interior air: Electrical conduit entry point within lower office ....................... 5 <br />IV. MONITORING PROCEDURES..........................................................................................5 <br />A. Regulatory Limits............................................................................................................5 <br />B. Monitoring Methods........................................................................................................5 <br />C. Frequency.......................................................................................................................5 <br />D. Reporting........................................................................................................................ 6 <br />TABLES <br />Table 1 — Perimeter Monitoring Soil Gas Wells <br />Table 2 — Soil Gas Well Sampling Intervals <br />Table 3 — Soil Gas Wells - Depth <br />I 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 />11 <br />