Low permeability material definition

Low permeability material means a geological unit of unconsolidated material (usually clay or till) or bedrock (usually shale) that is all or partially saturated, and having permeability low enough (10-7 cm/sec) to give water in the aquifer artesian head.
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Low permeability material means subsurface material above bedrock, as defined in s. NR 141.05 (5), that is at or below the water table and has a hydraulic conductivity less than or equal to 1 x 10 –5 centimeters per second that has been determined as re- quired in s. SPS 346.05.
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Low permeability material means a geological unit of unconsolidated material (usually clay or
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Examples of Low permeability material in a sentence

  • Low permeability material shall have a permeability no greater than 1x10-7cm/s.

  • Low permeability material shall be consistent with one of the following USCS designations: OC – Clayey gravels, gravel-sand-clay mixtures.

  • Low permeability material is defined as having a percolation rate slower than 120 minutes per inch or having a clay content (% passing 200 sieve) of 60 percent or greater.

  • Low permeability material is defined by K of <10−8 ms-1 (Neuzil,19 1986).

Related to Low permeability material

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