Today Ottavia Zoboli (Alumni of the DK programme on water resource systems) and Helene Trautvetter (Institute for Water Quality, Resources and Waste Management, TU Wien) installed a sediment sampler in the HOAL catchment. Within a project from the TU Wien and the Umweltbundesamt of Austria, a monitoring of priority substances in surface waters takes place with several of these installations.

The HOAL will be one of these representative catchments.