"Natural groundwater" refers to the water that collects underground in spaces between soil particles or rocks. It is naturally occurring and is an important source of water for wells, springs, and overall sustenance for plants, animals, and humans.
Full definition
By Jim Steele A better accounting
of natural groundwater discharge is needed to constrain the range of contributions to sea level rise.
«This is usually difficult to demonstrate,» Neuzil says, «but some shales have
natural groundwater pressure anomalies that can be analyzed — as if they were permeability tests — on a very large scale.»
In the 1990s, site surfaces were cleaned up, and remaining uranium in the ground was expected to flush out over time due to
natural groundwater flow across the sites.
Steward said the researchers went as high as 80 percent because that closely aligned with the aquifer's
natural groundwater recharge rate of about 15 percent of current pumping.
A better accounting of
natural groundwater discharge is needed to constrain the range of contributions to sea level rise suggested by researchers such as Gregory 2012.
The use of recycled water is very important to the sustainability of natural water resources as it takes significant pressure off
the natural groundwater.