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Pågående projekt

Groundwater on Koster – current status and future development

Project leader: Roland Barthel

Research staff: Stefan Banzhaf

Project start: March 2016

Project description:
The Koster islands are located at the Swedish Westcoast in the Municipality of Strömstad close to the Norwegian Border. As of today the drinking water for the population is mainly provided form groundwater through private wells and to a minor extent by a municipal waterworks. The permanent population is around 320 but during the summer months 6,000-9,000 people per day stay on the island, thus increasing the freshwater demand drastically. This results in a potential threat of saltwater intrusion into the fresh groundwater below the islands due to local over pumping of groundwater. The project comprises a status assessment of groundwater quantity and quality as well as a prognosis of the future development, in particular with respect to saltwater intrusion. A specific research interest is the question whether there is correlation between metal contents and a propagating saltwater front
The project is part of the larger project “Alternative solution for the drinking- and wastewater system for Koster” (www.kostervatten.com).

Funding source: Municipality of Strömstad


Water balance and leachate formation at the landfills Brudaremossen and Välenviken in Gothenburg

Project leader: Roland Barthel

Research staff: Stefan Banzhaf

Project start: February 2015

Project description:
Roughly 20 decommissioned land-fills are located in the municipality of Gothenburg. Most of them are not completely covered and sealed and thus generate large amounts of partly strongly contaminate leachate which in turn forms a source of contamination of ground- and surface water. Currently we are investigating the landfills Brudaremossen and Välenviken . Brudaremossen is the largest landfill. Located close to the Gothenburg water supply intake Delsjön it requires special attention. Goal of the project is to develop a conceptual model of leachate generation and to suggest measures how the volume of leachate can be reduced. At Välenviken the hydrogeological investigations aim at a characterization of the flow system inside and out of the landfill in order to get an understanding of the risk the landfill poses now and in the future.

Funding source: City of Gothenburg (kretslopp och vatten)


Perfluoroalkyl and polyfluoroalkyl substances (PFASs) in Swedish groundwater and drinking water

Project leader: Stefan Banzhaf

Research staff: Roland Barthel

Project start: 2016

Project description:
Perfluoroalkyl and polyfluoroalkyl substances (PFASs) are a group of anthropogenic environmental pollutants that are frequently detected in the aquatic environment, wildlife, and humans worldwide. These potentially harmful compounds are also frequently detected in Sweden and have already resulted in severe problems for public drinking water supply, i.e. some wells had to be closed due to high PFAS concentrations both in raw water and produced drinking water. In this project the potential sources for PFASs to enter the drinking water supply in Sweden, different occurrences of PFASs in raw and drinking water, the monitoring history, the legal situation, and remediation actions taken are investigated.

Other research activities

- Urban hydrogeology: the impact of changes in groundwater on city development (in Gothenburg) and vice versa 

- Groundwater controls on greenhouse gas emissions: Cooperation with Leif Klemedtsson from GU at the national research site Skogaryd, Sweden. This involves a sound characterization of the geological subsurface as well as groundwater and surface water in the Skogaryd area using geophysical measurements, drilling, and sampling and analysis of surface water and groundwater.

- See also student projects page for other research activities.

Sidansvarig: Ezra Haaf|Sidan uppdaterades: 2016-06-07

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