Hydrogeological Assessments

HYDROGEOLOGICAL ASSESSMENTS

We pride ourselves in offering our clients a broad range of hydrogeological services in support of their environmental authorisations processes including Environmental Impact Assessments (EIA’s) and Water Use License Applications (WULA’s).

We follow a risk-based approach in our investigations to identify all sources, pathways and receptors (source-pathway-receptor approach) within the local and regional environment as per stipulated Best Practise Guidelines by the Department of Water and Sanitation (DWS). Our detailed site characterisation methods which include, amongst others, geophysical surveys, borehole drilling and aquifer testing are used to conceptualise the groundwater environment at each site. Numerical groundwater modelling is applied to simulate potential impacts on the local and regional groundwater regimes and, in addition, is also used to simulate the effectiveness of mitigation (remedial) measures.

In summary, our hydrogeological assessments may include:

• Hydrocensus and borehole surveys
• Geophysical Surveys (electrical resistivity, EM, magnetic etc)
• Borehole drilling and supervision
• Aquifer testing including packer tests
• Baseline Investigations / Greenfields
• Groundwater Impact Assessments
• Mine dewatering
• Numerical Groundwater Flow and Transport Models
• Groundwater Remediation and Mitigation
• Hydrochemical and geochemical Assessments
• GIS Mapping
• Water and salt balances