Leachate Landfill - Definition | Landfill Leachate Information

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Leachate Landfill – Definition

In order to provide the fullest definition of landfill leachate we cite a variety of definitions which are available on the internet. We hope that by placing them here you can fully understand what leachate is.

Leachate Landfill Definition

Leachate is the liquid that drains or ‘leaches’ from a landfill; it varies widely in composition regarding the age of the landfill and the type of waste that it contains. It usually contains both dissolved and suspended material.

Leachate Landfill Definition


Leachate Landfill Definition

Leachate is a widely used term in the environmental sciences where it has the specific meaning of a liquid that has dissolved or entrained environmentally harmful substances which may then enter the environment. It is most commonly used in the context of land-filling of putrescible or industrial waste.

Leachate from a landfill varies widely in composition depending on the age of the landfill and the type of waste that it contains.[1][2] It can usually contain both dissolved and suspended material. The generation of leachate is caused principally by precipitation percolating through waste deposited in a landfill. Once in contact with decomposing solid waste, the percolating water becomes contaminated and if it then flows out of the waste material it is termed leachate.[3] Additional leachate volume is produced during this decomposition of carbonaceous material producing a wide range of other materials including methane, carbon dioxide and a complex mixture of organic acids, aldehydes, alcohols and simple sugars.


Liquid from rainfall, groundwater, or other sources that has percolated through a landfill mass and that contains biological and/or chemical wastes and dissolved or suspended materials. This waste is often hazardous and may need to be collected and treated to avoid groundwater contamination.


Water that collects contaminants as it trickles through wastes, pesticides or fertilizers. Leaching may occur in farming areas, feedlots, and landfills, and may result in hazardous substances entering surface water, ground water, or soil.

U.S. Environmental Protection Agency (December 1997) Terms of Environment: Glossary, Abbreviations and Acronyms. [online] Washington, D.C. Available from: http://www.epa.gov/OCEPAterms/ [accessed 27 October 2007].


Leachate means a liquid that has passed through or emerged from solid waste and contains soluble, suspended, or miscible materials removed from such waste . Municipal solid waste landfill (MSWLF) unit means a discrete area of land or an …

Leachate means any liquid, including any suspended or dissolved components in the liquid, that has percolated through or drained from the byproduct material. Licensed site means the area contained within the boundary of a location under …


1. Leachate is any liquid that, in passing through matter, extracts solutes, suspended solids or any other component of the material through which it has passed.

2. A combination of chemicals and water, or a fancy word for “polluted water.” Leachate occurs when chemicals in buried trash leak down into the groundwater.


Leachate is any water (generally from precipitation, such as rain or snow) that has come in contact with waste disposed in the landfill. Click HERE for leachate definition.

Leaching is a natural process that happens when water comes into contact with virtually any substance. In the case of groundwater, minerals and salts leach from the soil and rocks producing ‘hard’ water.


Water that collects contaminants as it trickles through wastes, pesticides or fertilizers. Leaching may occur in farming areas, feedlots, and …

Liquid that has percolated through solid waste or other medium and has extracted, dissolved or suspended materials from it, which may include potentially harmful materials. Leachate collection and treatment is of primary concern at municipal waste landfills.


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One Response to Leachate Landfill – Definition

  1. Brophy Lenser 08/10/2017 at 10:06 am #

    Hello. Leachate is in our river we are sure. We see your site. We will get tests done. Thanking you.

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