Evaluation of Hydrogeological Characteristics of Aquifers in Altun Kopri Basin, Northeastern Iraq

The current research aims to evaluate the hydrogeological characteristics of the water-bearing layers in the study area. Because of the absence of observation wells near the pumping wells, the single pumping test experiment was achieved at seven wells, GW1, GW2, GW8, GW9, GW11, GW13, and GW16, distributed in the study area. The pumping test records were analyzed using Aquifer Test 2016.1 software, which is based on four methods: Theis, Hantush, Cooper-Jacob, and Theis recovery. The average values of transmissivity for the upper aquifer in the study area ranged between 13.4 m2/ day and 279 m2/ day, while the hydraulic conductivity ranged between 0.162 m/day and 4.14 m/day, and the storativity was 0.166 and 0.826. For the lower aquifer, the transmissivity ranges between 11.4 m2/ day and 177 m2/ day, the hydraulic conductivity is 0.214 m/ day and 1.17 m/ day, and the storativity is 0.0791 and 0.99.