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Empty landfill
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Partially filled
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Full landfill
Click the arrows to see a cross-section of an empty, partially full and full sanitary landfill. The base of a new landfill is above groundwater level and lined with a protective layer. A drain diverts leachate to a storage facility, with landfill gas vented or flared. Underground wells and above ground systems monitor the condition of groundwater and landfill gas levels. Once full, the top layer of a landfill is covered in grass.
Te whakamahi i tēnei tūemi
Te Ara - The Encyclopedia of New Zealand
Source: H. G. Leach & Company
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