How does one consider the volume or amount of wet surrounded by an aquifer? What equipments are used & approximate cost?
In order to know the volume you need to determine the nouns that the aquifer covers, its thickness, its porosity and water even within the aquifer.
These measurements are typically based on well drilled at various locations. The cost to do this will vary near the size of the aquifer and its depth below the surface. Just the cost of the well can be a few thousand dollars upward. The porosity and thickness are usually base on side wall samples extracted after the wells are drilled. Source(s): http://en.wikipedia.org/wiki/Aquifer