AQTESOLV uses the porosity of the gravel pack to correct
the casing radius of the well when the static water table position occurs within the well
screen.For confined aquifers, always enter a porosity of 0.0.
For unconfined aquifers, enter the gravel pack porosity only when the
static water table position occurs within the well screen; otherwise enter a porosity of
0.0.
Check Apply correction for partially submerged screen if you want
AQTESOLV to correct the casing radius (v. 3.0+). The program will
apply the correction whenever the porosity value is greater than 0.0 (older versions).