To make up for the water pumped out when mining, water is being put back into the ground a short distance from the mine. This is done in part by means of seepage wells.
Lai kompensētu ieguves vietā izsūknēto ūdeni, tas tiek ielaists turpat netālu īpaši izurbtās akās, no kurām ūdens iesūcas atpakaļ augsnē.