The research includes an analytical study of long term pumping test with observation
wells to get the optimum determination of the most important hydrogeological parameters
of confined aquifer in Banyas, by pumping from a well with average pumping
rate
10104m3/day for 36 hours and only 5 hours of complete recovery groundwater level. This
test is accompanied by measuring the variations of the groundwater levels in the
monitoring wells.
Analytical methods of steady- unsteady of groundwater flow are used to evaluate the
long term pumping test, and then to determine the optimum evaluation. The Transmissivity
of the confined aquifer is about 5000 m2/day (very high potential), and the storage
coefficient is 1,8.10-4. Then they used to predict the groundwater drawdown during one
day. So, we can get 20000 m3/day from the aquifer and the drawdown not more than 1,75
m as quasi-steady drawdown at distance 500 m from the pumping well.
