The Emam-Gheis Karst Aquifer is located in the southeast of Borujen city in Iran. The Emam-Gheis Spring with the average flow rate of about 90 L s⁻¹ has emerged in the south of the aquifer. Seven deep drinking water wells have been drilled in the east of the aquifer (15 years ago). The spring flow rate has decreased significantly after water harvesting from the water wells began. In this study, the presence or lack of a hydraulic connection between the Emam-Gheis karst spring and its adjacent water supply wells has been investigated. The hydrogeology, water chemistry, and isotopic investigations were done in the catchment area of the spring and the wells from December 2016 to December 2017. The obtained results revealed that there were significant differences between the spring and the wells regarding the electrical conductivity, major ions concentrations, ion ratios, saturation indices (of calcite, dolomite, gypsum, and halite), and water stable isotopes. In addition, the hydrogeological investigations implied that the existence of a hydraulic connection between the spring and the wells seems unlikely. It seems that due to the excessive groundwater extraction in recent years, the groundwater level has declined in the adjacent alluvial plains. This seems to have intensified the water discharge from the karst aquifer toward the alluvial deposits and resulted in a decrease in water discharge rate at Emam-Gheis spring.

Emam-Gheis岩溶含水层位于伊朗Borujen市的东南部。Emam-Gheis弹簧的平均流量约为90 L s ^-1已经出现在含水层的南部。在含水层的东部（15年前）已钻了七个深水井。从水井收集水后，弹簧流量已大大降低。在这项研究中，已经研究了Emam-Gheis岩溶泉与其相邻的供水井之间是否存在液压连接。从2016年12月至2017年12月，在春季和水井集水区进行了水文地质，水化学和同位素研究。获得的结果表明，春季和水井之间在电导率，主要离子方面存在显着差异。浓度，离子比率，饱和指数（方解石，白云石，石膏和石盐）和水稳定同位素。此外，水文地质调查表明，弹簧和井之间似乎没有水力连接。近年来，由于地下水的过度开采，邻近冲积平原的地下水位有所下降。这似乎加剧了从岩溶含水层向冲积沉积物的排水，并导致Emam-Gheis春季的排水速率降低。