Abstract
In the area of intense mining within the Lubin Glogow Copper Region the investigation of groundwater renewal was made according to two methods: a numerical flow model and isotopic analysis. The results of model simulations show that within the shallow aquifer the groundwater renewal is quick and mostly depends on infiltration within the recharge zones. An average time of groundwater flow between recharge and discharge areas in the representative part of the entire system has been obtained as 130 years. The content of isotopes was determined in samples collected as well from the mine excavations as from water intakes. The measurements were done on 17 samples. Results of isotopic studies indicate that the relationship of δD δ 18 O in groundwater gathers along the established local meteoric water line (MWL) δD = 7.58 δ 18 O + 4.45. Deep groundwaters that create an inflow to the mines were formed by infiltration in Holocene with reference to two of total four mines and probably in Eopleistocene in another two.
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