Extraction Well: A discharge well used to remove groundwater or air.
Extremely Hazardous Substances: Any of 406 chemicals identified by EPA as toxic, and listed under SARA Title III. The list is subject to periodic revision.
Extraction wells
Wells that are used primarily to remove contaminated groundwater from the ground. Water level measurements and water samples can also be collected from extraction wells.
Fallout ...
extraction well A well employed to extract fluids (either water, gas, free product, or a combination of these) from the subsurface.
short circuiting : The entry of ambient air into an extraction well (used for SVE and bioventing) without first passing through the contaminated zone.
The radial distance from the center of a wellbore to the point where there is no lowering of the water table or potentiometric surface (the edge of the cone of depression); 2. the radial distance from an extraction well that has adequate air flow ...
Exposure Concentration
Exposure Indicator
Exposure Level
Exposure Pathway
Exposure Route
Exposure-Response Relationship
Extraction Procedure (EP Toxic)
Extraction Well
Extremely Hazardous Substances ...
 See also: Condition, Environment, Treatment, Site, Gas
  
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