Hydrogeology and Contaminant Transport

To conduct a reliable risk assessment regarding contaminant transport, a thorough description of local hydrogeological conditions and characteristics within the relevant area must be carried out. Kemakta’s hydrogeologists have a deep understanding of both the chemical transport properties of contaminants and the hydrogeological processes that govern contaminant transport.

Kemakta has conducted multiple risk assessments of rock caverns previously used for oil storage that are now being environmentally secured. To assess the risks to recipients, a conceptual hydrogeological model of the area is developed, and potential pathways for contaminant transport in the bedrock are investigated. Furthermore, in connection with development and remediation projects, Kemakta has assessed the conditions for contaminant transport in soil, considering both natural and anthropogenic influences on hydrogeology, such as paved surfaces and underground structures, which are significant in urban environments. Analytical or numerical transport calculations are then performed with respect to the properties of the contaminants and the local geological and hydrogeological conditions as a basis for the risk assessment.

Our hydrogeologists also work on purely hydrogeological issues in infrastructure projects, such as the planning of the new subway and the City Line in Stockholm, as well as excavations for development. In these projects, Kemakta’s expertise has been utilized in permit applications in the Land and Environment Court regarding water activities.