System for groundwater protection
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United States of America Patent
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Feb 27, 2018
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app pub date -
Jun 7, 2016
filing date -
Jun 7, 2016
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Abstract
A system and method for ground water protection below a pit mine that includes: a first back fill cover over an exposed ground water; layer of polystyrene foam; a rubber membrane placed over the first foam cover; closed cell extruded polystyrene foam placed over the rubber membrane; a layer of contaminated material over the closed cell extruded polystyrene foam, wherein the layer of contaminated material is covered by polystyrene foam, a rubber membrane and polystyrene foam over the rubber membrane; and top soil covering the layer of foam, rubber membrane and foam above the contaminated material.
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