Groundwater Exploration & Borehole Siting

• Groundwater yield potential and quality assessment
• Geological assessment
• Geophysical survey
• Borehole siting
• Borehole construction design

Geophysical Surveys

Measurement of the earth’s subsurface properties: GEOSS offers multiple robust and scientifically proven geophysical techniques for the improved characterization of the subsurface. These services assist with:

• Groundwater exploration
• Dam leak detection, construction and design
• Contaminant plume mapping
• Geological characterisation

Borehole Drilling Management

Working with the best drillers in the industry, GEOSS assists with:

1. Design specification
2. Management of drilling process
3. Geological supervision of drilling
4. Final hole design recommendations (depth & construction)
5. Drill report (borehole log) including geology and water strike information

Read more about borehole yield test requirements

Yield & Quality Testing

Sustainable borehole yield testing according to national standard: SANS 10299-4:2003:

• Yield testing design (rates and duration)
• Step Test, Constant Discharge Test, & Recovery Monitoring
• Sample collection and water quality analysis
• Aquifer parameters determination
• Accurate reporting on borehole yield and quality.

Read more about borehole drilling

Legislative Requirements

GEOSS assists in applying regulatory and legislative requirements associated with groundwater usage.

• Evaluate sustainability of the proposed Groundwater use
• Ensure compliance with the National Water Act, 1998
• Identify potential triggers that may require involvement of an Environmental Assessment Practitioner & compliance with NEMA.
• Ensure compliance with relevant Municipal bylaws.

Groundwater Monitoring & Management

• Groundwater protection and management
• Evaluation of sustainability
• Constant monitoring of seasonal water level and quality fluctuations within any borehole
• Assessment of the impact of neighboring groundwater users
• Compliance with regulatory requirements (electronic flow and water level monitoring)
• Resource protection zones

Numerical Modelling

• Detailed resource sustainability evaluation
• Assess impacts of abstraction or other stresses on aquifer
• Contaminant migration
• Compliance in terms of water use licensing conditions

Contamination and impact Assessments

• Impact assessments
• Site specific risk assessments
• Soil, Vapour and Water sampling and characterization
• Contaminated land process

Geotechnical Studies

Soil characterization for:

• Agricultural purposes
• Construction and site development
• Characterization of the vadose zone
• Impact assessments

Down hole camera logging

Through high resolution down hole camera logging GEOSS is able to:

• Assess borehole structural integrity
• Assess fracture and borehole stability
• Assess clogging and biofouling

GIS & Remote Sensing

Spatial solutions for various sectors:

• Remote sensing analysis
• Spatial data visualisation
• High-accuracy GPS surveys

Database Design & Development

We offer compilation and management of the following data:

• Temporal
• Spatial
• Geological
• Hydrogeological
• Environmental