1. Typical Landfill Gas
Extraction Well
Control Valve
To LFG
Energy
Landfill Cap System
Recovery
or Disposal
Cover
Facility Vegetation
Top Soil
Protective
Cover Soil
Compacted
Clay
e
Geomembran
Daily or
Intermediate
Cover
Seal
Waste
Compacted
Soil or Clay
Gravel
Cap
Waste
(Not to scale)
Gas extraction wells are used to collect gas that is generated as the waste decomposes. The gas
is used to produce energy or is sent to a landfill gas disposal facility.
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