Borehole: Hole made with drilling equipment.
Botanical Pesticide: A pesticide whose active ingredient is a plant-produced chemical such as nicotine or strychnine. Also called plant-derived pesticide.
borehole, geophysical A general term that encompasses all techniques in which a sensing device is lowered into a borehole for the purpose of characterizing the associated geologic formations and their fluids.
Borehole: A hole drilled or bored into the earth, and into which casing, screen, etc. may be installed to construct a well.
Borrow Pit: An excavated area where soil, sand, or gravel has been dug up for use elsewhere.
Borehole
Hole made by inserting a hollow tube with drilling equipment to draw up a core of soil. The soil samples are collected for testing to determine the site geology and to learn if the soil has been contaminated.
Boring (or Soil Boring) ...
Such water may emerge as springs, artesian springs, or may be extracted from boreholes or wells.
The area in which water from the aquifer can move freely into a well. If a borehole is completed with a well casing plus surrounded by a filter pack material, the effective hydraulic diameter is equal to the diameter of the borehole.
effluent ...
An inflatable gland, or balloon, used to create a temporary seal in a borehole, probe hole, well, or drive casing. It is made of rubber or non-reactive materials.
Seal: The impermeable material, such as cement grout bentonite, or puddling clay placed in the annular space between the borehole wall and the casing of a water well to prevent the downhole movement of surface water or the vertical mixing of ...
Annular Space, Annulus- The space between two concentric tubes or casings, or between the casing and the borehole wall.
Antagonism- Interference or inhibition of the effect of one chemical by the action of another.
The log of a well or borehole obtained by lowering electrodes in the hole and measuring various electrical properties of the geologic formations traversed.
Electron ...
A general term that encompasses all techniques for determining whether a subsurface geological formation may be sufficiently porous or permeable to serve as an aquifer. These techniques typically involve lowering a sensing device into a borehole to ...
 See also: Well, Water, Soil, Liquid, Solution
  
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