What safeguards are in place at the Tontitown Landfill to protect the groundwater and surface water?
Protecting groundwater and nearby streams is a very important part of our business. It is included in all phases of development, from the initial planning, through the permitting process, during operations and even after closure. The Tontitown Landfill is the only landfill in Arkansas to have a double composite liner system consisting of a primary composite liner system and a secondary composite liner system on the bottom, both designed to provide impermeable layers that protect groundwater. The primary liner system and the secondary liner system are constructed with two feet of compacted clay (or engineered equivalent approved by the ADEQ) and a very durable high-density polyethylene (HDPE) plastic liner that is chemical resistant to corrosion and damage. We also operate a gas collection and recovery system to remove landfill gases that might impact groundwater. We maintain a series of groundwater monitoring wells around the border of the landfill. Each well is monitored regularly to
