What are the green fiberglass “boxes” on Mount Hoy?
The devices are 8-by-4-foot vaults, which contain the tops of wells, which remove contaminated liquid, called leachate, and landfill gas from inside the landfill. Underground pipes convey the leachate to a collection tank, which is then trucked to a processing facility for treatment and disposal. Separate pipes convey the gas to a vent stack at the top of Mount Hoy.
