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To assess the hydrogeological conditions and indicate the major components of the water balance in the landfill area, located in the border of the city Tychy, southern Poland, a modeling investigation was applied. Groundwater flow model on the local scale for steady-state conditions for the year 2016 was created in FEFLOW environment, ver. 7.0. Modeled unconfined Quaternary aquifer was calibrated against hydraulic head measurements from 18 observation wells, 10 of them surrounded the old site of a municipal landfi...

The municipal solid waste landfill in Tychy, southern Poland consists of three sites, the old one, closed in 1994, and two others still being in use. The old part of the landfill has neither any bottom liner nor any leachate collection and treatment system. Moreover, the bottom of the closed site in the northern part is continuously above the groundwater table, therefore, pollution can easily release into groundwater causing deterioration of groundwater quality and the nearby river nearby. In order to assess the i...