Grundwasser (Landwasser)

The ground just before the mouth into the country water

Template: Infobox River / Obsolete

The groundwater also Grundbach or Rear water, is a five-kilometer stream that flows flowing through the village Eibau in or joke in the land of water. Its source is located on the southeast flank of the Kottmars. In the middle of its course, there are several wells that collect underground water for drinking water supply of Neugersdorf.

The creek is one of the waters which receive frequent rainfall in its catchment area and weak wooded forward in the highly populated Landwassertal. Through numerous heavy rainfall occurred in the past centuries by repeatedly devastating floods. So reports about Korschelt in his chronicle of the Oder joke of a flood in 1880 that caused damage at the crossing railway embankment, fields and buildings and several human lives.