ABSTRACT
In general, porous aquifers are the most homogeneous, within the characteristic heterogeneity of all aquifers. Both these and the karstic-porous ones are able to store a large quantity of water per unit of aquifer volume and so they tend to be slow aquifers which react to pumping with inertia. Their radius of influence tends to be shorter than in karstic and fissured ones; karstic and fissured aquifers, however, are less homogeneous and tend to produce the most varied test results; they have less water storage capacity and so can be considered as quick aquifers, where the radii of influence are longer than in other aquifers.
