Landfill Gas
Landfill gas is created by the decomposition of waste buried in landfills. The composition of landfill gas typically is about 50% methane, 50% carbon dioxide, and less than 1% sulfides. However, sulfides are the source of the “rotting” smell often noticed near landfills and can cause unpleasant odors even at very low concentrations.
Odors can be destroyed by collecting and flaring the landfill gas. In addition to minimizing odors, burning the gas helps reduce harmful emissions to the atmosphere. MES team members have the capacity to perform daily inspections of flares to ensure they are performing properly.
Because of the operational nature of landfills, the products they receive, and weather variations, it is virtually impossible to eliminate all odors. However, MES does everything possible to mitigate odors. We are available to respond to odor complaints 24 hours a day.
Leachate Control
MES can provide a system to collect rain and runoff water that percolates through a landfill as well as treat the leachate.
To make sure our systems work properly and to protect residents, we also provide free well-sampling for residents near the landfill.
For more information about either of these services, please contact Tim Ford.
The Brown Station Road Leachate Pretreatment Facility treated over 7.9 million gallons of leachate material in 2025 while maintaining operating costs of $70,000 under budget. Through 2026, the facility has continued its strong operational performance, treating over 5.1 million gallons of leachate year-to-date. MES continues to operate the facility in partnership with Prince George’s County, which a focus on reliable treatment, regulatory compliance, and cost-effective operations.
