Consultancy Projects

Impact Assessments

  • Van Zijl, G.M., Du Plessis, C.2016. Agriculture impact assessment for 160 km of refurbished water pipeline, Limpopo. MSW Consulting.
  • Van Zijl, G.M., Du Plessis, C. 2016. EIA level report: Soil and land capability assessment for the proposed 150 MW Metsimatala CSP facility, Postmasburg, Northern Cape Province. Prepared for Enviroworks.
  • Van Tol, J.J., 2015. Report on the soil and agricultural potential of the proposed BWC Uitsig 5 MW solar facility near Hennenman, Free State Province. Savannah Environmental.
  • Le Roux, P.A.L., Van Zijl, G.M., Tinnefeld, M., 2014. Verification of wetlands by soil properties for Grootkop solar facility. Report prepared for FRV Energy, South Africa, PTY (ltd.)
  • Van Tol, J.J., 2014. Report on the soil and agricultural potential of the proposed Kutulu Tsatsi Concentrated Solar Plants, near Kenhardt, Northern Cape Province. Savannah Environmental.
  • Le Roux, P.A.L., 2012. Report on a Soil survey as part of an Environmental Impact Assessment of the development of a Solar Farm on the soils of Glen Thorne Solar Farm, Bloemfontein. For the CSIR. Stellenbosch. January 2012.
  • Le Roux, P.A.L. & Van Tol, J.J., 2008. Actions required for Hotazel pit water dewatering and gardening project: Action 1 Prefeasibility study.


  • Bouwer, D., Le Roux, P.A.L., 2015. Soil Survey and Hydropedological Report on Weltevreden Farm. Report prepared for Enviroworks.
  • Kunene, B.T., Le Roux, P.A.L., van Tol, J.J., Hensley, M., Bouwer, D. & van der Merwe, R.H., 2010. Soil hydrology dynamics and catchment morphology of selected catchments in Lesotho.

Interpretation of Land Types

  • Bouwer, D., Le Roux, P.A.L., 2014. Landtype interpretation and field verification. Department of Mineral Resources.
  • Van Zijl G.M. 2015. Desktop Study to determine potential sites with suitable soils for irrigation near Kolomela Mine, Postmasburg. Prepared for Umhlaba Consulting Group.
  • Van Tol, J.J., 2012. Disaggregation of land types for determination of erosion sensitivity of selected sites in the Eastern Cape for afforestation. Sigwale and Associates

Irrigation Suitability

  • Van Zijl, G.M. Du Plessis, C. 2016. Irrigation Suitability Report on Farm 484 Near Kolomela Mine, Postmasburg, Northern Cape Province. Prepared for Umhlaba Consulting.
  • Bouwer, D., Le Roux, P.A.L., 2014. Soil survey Report for irrigation suitability on Vaalharts irrigation scheme. Department of Agriculture, Landreform and Rural development.

Soil Pollution

  • Le Roux, P.A.L., Tinneveld, M., Bouwer, D. and Keunene, B.T. 2015. Distribution of Nitrogen from dam overflow in Secunda. Report prepared for Sasol.
  • Le Roux, P.A.L., Bouwer, D., Van Zijl, G.M., Matshawu, B & van Tol, J.J., 2010. Hydrological flowpaths controlling the distribution of Zn at the Zincor mine, Springs.

Agricultural Production

  • Van Tol, J.J., 2015. Report on soil management requirements for citrus production for the Riverside Farm, Fort Beaufort. Riverside Farms.
  • Van Tol, J.J., 2014. Soil management recommendations for an Olive orchard, Adelaide. Chris Lombard.
  • Van Tol, J.J., 2014. Agricultural land potential assessment, amelioration and management of the Harmony JMS-East site, Welkom. Selectra Sustainable Solutions.
  • Le Roux, P.A.L., Van Zijl, G.M., Bouwer, D. & van Tol, J.J., 2012. Layout of the ATCF II forestry development, Nampula, Mozambique. ATCF II.
  • Le Roux, P.A.L., Van Rensburg, L.D., Theron, E., Bouwer, D., Erasmus, J.S., Kutuahupira, J.T., Van Der Merwe, R.H., Chimungu, J.G. & Hensley, M., 2009.  Soil survey report of the 3 000ha project.  Dept of Agriculture, Free State Province.
  • Le Roux, P.A.L., Hoffman, J.E., Loubscher, D.J., Van Antwerpen, R. & Van Rensburg, L.D., 1985.  ‘n Verslag oor die gronde van enkele dele van De Wetsdorp en De Aar.

Urban Planning

  • Van Tol, J.J., van der Merwe, R.H. & Le Roux, P.A.L., 2011. Land suitability of the farm Brandkop (and some ecohydrology). Urbanseed.