
1) Lye
Found on
https://www.crosswordclues.com/clue/leachate

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. 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 en...
Found on
http://en.wikipedia.org/wiki/Leachate

(from the article `environmental works`) ...at least 10 feet (3 metres) of separation between the bottom of the landfill and the underlying bedrock or groundwater table. A secure ... A highly contaminated liquid called leachate is another by-product of decomposition in sanitary landfills. Most leachate is the result of runoff that ... ...
Found on
http://www.britannica.com/eb/a-z/l/25

The solution produced by passing a liquid through a solid, often containing chemicals that have dissolved from the solid to the liquid. As rainwater passes through landfills and associated sediments, various chemical substances may dissolve in the water a
Found on
http://www.chemicalglossary.net/definition/1003-Leachate

A liquid (usually rainwater) that picks up contaminants from deposited waste in a
landfill site as it passes through the waste.
Found on
http://www.encyclo.co.uk/local/20453

Solution of material leached from a solid (for example, dissolved organic matter leached from fallen leaves). ... (09 Oct 1997) ...
Found on
http://www.encyclo.co.uk/local/20973

Liquid 'run-off'. Leachate from the compost pile contains nutrients generated in the composting process. In contrast, as groundwater and rain flow through a landfill, they pick up weak acids created by decaying organic matter. As these acids react with other rubbish, the leachate can become toxic which may contaminate streams and groundwater unless the landfill is properly constructed to contain the run-off.
...
Found on
http://www.encyclo.co.uk/visitor-contributions.php

Water and other soluble materials that have drained out of a deposit or tipped material.
Found on
http://www.encyclo.co.uk/visitor-contributions.php

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.
Found on
http://www.encyclo.co.uk/visitor-contributions.php

A solution produced by leaching. Example: water that has seeped through a waste disposal site and thus contains in solution various substances derived from the waste material.
Found on
http://www.evcforum.net/WebPages/Glossary_Geology.html

liquid that has percolated through a solid mass; soil leachate may be high in nitrate; landfill leachate may be high in BOD, ammonia, salinity and toxic substances
Found on
http://www.oasisenviro.co.uk/Glossary%20F%20to%20M.htm

Solution containing material leached from a soil.
Found on
http://www.physicalgeography.net/physgeoglos/l.html

Contaminated waters running off of, or percolating through a landfill site
Found on
http://www.roadsafeeurope.com/useful_info/Glossary
(waste) the mixture of water and dissolved solids (possibly toxic) that accumulates as water passes through waste and collects at the bottom of a landfill site.
Found on
http://www.translationdirectory.com/glossaries/glossary306.php

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.
Found on
https://www.encyclo.co.uk/local/20094
No exact match found.