GROUNDWATER MODELING OF SHALLOW AQUIFER IN LAYLAN SUB-BASIN / NE IRAQ.

A Mathematical model has been done for the study area (Laylan sub-basin) in Kirkuk / NE of Iraq byModflow pro software. To make a simulation for the shallow aquifer to predict a clear future imagination about the hydraulic head. The aquifer receives 23.29 mm in January, 49.44 mm February, 25.17mm in March. According to such conditions with no sinks, the model was run, after converting the water surplus to the used unit in the model m/day..The model output in the monthly flow map depends on the variation of the above package (groundwater recharge).The calculated head values for each step are noticed showing slight differences in head values.Another simulation was run with sinks for one year divided also to 12 stress period The calculated hydraulic head after 1-year simulation with thewithdrawal of groundwater estimated by -432 m3 / day of 70 wells, theSmall difference in hydraulic heads was noticed when comparing the readings of both simulations (with or without pumping). The model was run after reloading the mentioned stresses,and with increasing 10 wells yearly (as an assumption), the result shows that there will be a decrease in the southern and northern parts toward the center of the modeled area.