### Model of the simultaneous remediation pumping and injection of treated water

One of the possible remediation methods is a reinjection of the treated water back to the rock medium. Therefore, the other variant of the groundwater flow model includes a simultaneous pumping from extracting wells and a reinjection of half of the pumped water back to the aquifer. The equipotentials of simultaneous pumping and recharging are shown in this picture. By recharging cleaned water into HM-2 we create a dividing contour line between wells HSJ-1 and HLS-3a that does not allow free movement of pollution from one borehole to the other. Pollution from the neighbourhood of HLS-3a cannot reach HSJ-1 when great amounts of water are pumped from HSJ-1.