The use of numerical models is indispensible when attempting to answer hydrogeological and environmental questions associated with water management activities. In addition to those programs normally available on the market (SPRING, FE-FLOW, MODFLOW), we also use the ReacFlow3D program. This makes for even more flexible discrimination in evaluating geological information (such as data imported from Petrel) and peripheral conditions. Here the 3-D models offer solutions ranging from pure flow calculations (e.g. in mine dewatering) to highly complex depictions of the conveyance of matter in groundwater – taking account of the various substances involved and their geochemical reactions.

Our modelling experts work intensively with our hydrogeologists, geochemists and microbiologists to ensure that the model is based in the correct concept, that peripheral conditions and input data have been carefully examined, and that the results of modelling are properly evaluated. 

The main areas of application are:

• Determination and display of groundwater flow
• Assessment of the interaction between groundwater and surface water
• Planning and optimising water retention measures in underground engineering projects
• Determining the effects of on groundwater levels and chemistry resulting from leakage in sewer systems and the repair of such defects
• Rainwater infiltration
• Wet excavations (flooded gravel pits)
• Influence of mining subsidence on the groundwater situation 
• Calculation of mine flooding and the effects on the environment 
• Extent and remediation of groundwater contamination
• Seepage forecasts
• Reactive substance transport in unsaturated and saturated zones
• Predictions of natural attenuation and remediation techniques