A quarterly gas monitoring program has been in effect at the Williamson County Landfill since WM began operating it. Twenty-two gas probes are placed around the perimeter of the landfill to detect the potential presence of landfill gas migration.
Gas Collection and Extraction
In 2006, WM voluntarily installed a gas collection and extraction system at the Williamson County Landfill designed to achieve the following:
- Reduce the potential for off-site landfill gas migration
- Minimize passive landfill gas emissions
- Control potential landfill odors
WM installed gas extraction wells into deposited wastes to collect landfill gases generated by decomposing waste. The gases are removed via a central, high-temperature flare, which has no adverse impact on public health or safety.