-Bottom liner system - separates trash and subsequent leachate from groundwater
-Cells (old and new) - where the trash is stored within the landfill
-Storm water drainage system - collects rain water that falls on the landfill
-Leachate collection system - collects water that has percolated through the landfill itself and --contains contaminating substances (leachate)
-Methane collection system - collects methane gas that is formed during the breakdown of trash
-Covering or cap - seals off the top of the landfill