Any liquid, including any suspended components in the liquid that has percolated through or drained from human-emplaced materials.
A product or solution formed by water percolating through waste. Leachate is a cocktail of organic and/or inorganic compounds and can have a high total dissolved solids content. Leachate is formed at waste sites, slimes dams, sewage works and in other bodies of waste.
Why is leachate important?