Expand Landfill Gas Collection System (Phase 6)

This project includes the installation of thirteen (13) vertical landfill gas (LFG) extraction wells and associated appurtenances; installation of gas lateral piping, backfill, and fittings to tie the extraction wells into the existing system; installation and maintenance of erosion and sediment controls; site stabilization and restoration; survey and record drawing preparation; and other associated tasks. There are also several add alternate bid items for the replacement of a section of existing 24" HDPE landfill gas header pipe and existing valves controlling remote well heads that may be included in the work if the project budget allows.

This expansion of the existing LFG collection system at Central Landfill will be Phase 6 and will include the installation of thirteen (13) extraction wells in the Cell 4/Cell 5 waste disposal area. Nine (9) of these wells are replacements for previously installed wells that have become watered in limiting gas collection. The other four (4) wells are new wells proposed in areas where additional well field coverage is needed.