© Delta-H Water Systems Modelling 2020


With a highly qualified team and project partners Delta-H have been serving a number of sectors with many components of the hydrogeology realm.
Delta H Groundwater Systems Bennet Drilling (http://drilling.co.za) VSA Leboa Consulting (http://www.vsaleboaconsult.co.za/) Clearwater Pumps (https://clearwaterpumps.co.za)

Dr. Martin Holland



Martin has more than 15 years of experience in the field of hydrogeology, ranging from resource evaluation, flow conceptualisation, source apportionment, groundwater liability assessment as well as wellfield management plans. He also conducted numerous groundwater related - environmental impact, -feasibility and -water supply studies for the mining industry.

Prof. Christoph


Lead Modelling Team

Christoph has more than 30 years of experience in numerical modelling of groundwater flow, specialising in mass transport, multi component-, seepage water, multi phase- and fissure flow. Christoph lectures since 1992 at the Ruhr-Universität Bochum, Germany. He developed over the last 28 years the program system SPRING and is the director of delta h Ingenieurgesellschaft mbH Germany and GKW Ingenieurgesellschaft.

Prof. Kai T Witthüser



Kai has more than 23 years of experience in hydrogeology, specialising in environmental impact assessments, hydrogeological and geochemical modelling. He is Associated Professor at the Institute for Groundwater Studies, University of the Free State since 2009. Countries of work experience include Austria, Benin, Democratic Republic of Congo, Denmark, Germany, India, Israel, Morocco, Namibia, Slovenia, South Africa and Tanzania.

Mr. Theo Rossouw

Senior Hydrogeologist

Theo obtained his MSc Engineering and Environmental Geology degree from the University of Pretoria in 2009. He is currently a hydrogeologist with more than 10 years of experience focused primarily on the mining industry in South Africa and Africa, including groundwater modelling, geochemical assessments, project management and risk assessments as well as geotechnical investigations.

Ms. Josepha Zielke-


Senior Hydrogeologist

Josepha Zielke-Olivier has more than six years of experience in the field of hydrogeology, ranging from groundwater exploration to geochemical assessments and groundwater-related mining aspects. She is currently conducting PhD research on the contaminant distribution in a fractured aquifer system along a graben including an aquifer vulnerability assessment based on statistical models.

Project Partners