What is the nature of the site remedy?
The Lowry Landfill remedy is designed to protect the surrounding environment and human health by preventing contaminants from moving off the site and by preventing human exposure to landfill gas, waste-pit liquids or contaminated groundwater. This “containment” approach is commonly used at contaminated municipal landfills because the risks involved in removing and transferring the large volumes of materials elsewhere are greater than the risks of managing the wastes onsite. The containment remedy at Lowry Landfill consists of multiple components, including a clay cap on top of the landfill mass; underground barrier walls designed to prevent groundwater from flowing on and off the site; and a state-of-the-art onsite water treatment plant and landfill gas collection and treatment system. There is also a groundwater monitoring system at the site to track the movement of contaminated groundwater. (Groundwater is water that flows underground, as distinguished from surface water that flows a
