groundwater

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Related to Pore water: Pore water pressure

groundwater

Water below the earth's surface, saturating soil and rock at the level of the water table and below. It supplies approximately 35 percent of the drinking water in the country and, as such, is a source of much concern for the Environmental Protection Agency. If one purchases a property with contaminants, and those contaminants have leached into the groundwater, then remediation will usually be required before development can proceed.

References in periodicals archive ?
Calcium, from calcite dissolution, contributes to the modification of the cation exchanger population in the clay and to the cation composition of the pore water.
The effect and reasonable description of rapid increasing pore water pressure of saturated rock fill materials on the dynamic deformation and strength properties should be taken into full consideration.
Instruments to measure ground movement and pore water pressure thread a site in the area of a prehistoric stream channel near the Alamo River.
The conventional view that plant wilting always occurs at a pore water suction of h = 1.
6A2), referring to early diagenetic origin of cementation, in some cases the dolomite-cemented rocks of the Vadja and Leivu Fms revealed a somewhat increased content of Mn in dolomite, indicating that in these levels cementation of siliciclastic layers presumably progressed during burial diagenesis under the impact of evolved pore waters.
It is difficult to estimate the residual effective stresses or negative pore water pressure which remains within the specimen, since is not easy to specify completely the stress history of the specimen until the specimen is placed into oedometer.
In most practical cases, the horizontal permeability of sand/gravel drains will be several times greater than its vertical permeability and spacing between vertical drains is closer than the distance required for pore water to drain vertically towards the free surface.
Sediment obtained from deposits probably accounts for the bulk of the gut's content, but food filtered from pore water may be most important nutritionally (Barrington, 1940).
consideration of crack and pore water pressure according to the current flow situation.
The decline of pore water content is most significant at 200-300 [degrees]C.
The similarity between the global climate records and the pore water records from the Dead Sea core emphasizes a strong relationship between rainfall and humidity in the region and global climate changes, findings that are important for understanding and predicting climate change in Israel and the central Levant, the researchers wrote.
A longer retention time, due to a lower pore-water velocity, leads to a longer contact time, while shorter retention times might occur at higher superficial velocities (velocities of pore water on the particle surface).