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Percolation |
  
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Percolation |
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Definition The process of the downward movement of water in the unsaturated zone under the influence of gravity and hydraulic forces. Description Percolation is a process and relates to the downward migration of water in the unsaturated zone; not to be confused with infiltration. Why is percolation important? Percolation is the process by which water and contaminants move downwards to the groundwater system.
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