Leaky aquifer system with account for aquitard storage
✓leaky aquifer system: confined aquifer system consisting of three layers – two isotropic aquifers separated by aquitard;
✓main aquifer (1) is penetrated by the pumping well;
✓adjacent aquifer (2) leaks into the main aquifer, its water level may be constant or alternate during the test period;
✓boundary: aquifer has infinite areal extent;
✓pumping well is fully penetrating, located in the main aquifer;
✓drawdown can be estimated in the main as well as in the adjacent aquifer and in the aquitard at any distance from the pumping well;
✓crossflow through the aquitard is vertical;
✓storage of the aquitard is included.
Leaky aquifer system (3-layered) with account for aquitard storage: a – pumping well in the bottom of the aquifer system; b – pumping well in the top of the aquifer system; c, d – semi-infinite aquitard
Neuman S.P., Witherspoon P.A. Theory of flow in aquicludes adjacent to slightly leaky aquifers // Water Resources Research. 1968. Vol. 4, N 1. P. 103–112.
Neuman S.P., Witherspoon P.A. Applicability of current theories of flow in leaky aquifers // Water Resources Research. 1969. Vol. 5, N 4. P. 817–829.
Neuman S.P., Witherspoon P.A. Theory of flow in a confined two aquifer system // Water Resources Research. 1969. Vol. 5, N 4. P. 803–816.