JG Afrika’s multidisciplinary water team comprises water engineers, hydraulic engineers, hydrologists, geohydrologists and water, sanitation and hygiene (WASH) experts. We offer the full range of services, including the design of community water supply schemes, large industrial pipelines, groundwater projects, flood risk assessments, water resource management, water balance studies, dam design from feasibility to construction monitoring and water governance and planning.
We have been responsible for the successful planning, design, implementation, construction supervision and management of many water-related projects for national, provincial and local government clients as well as mining and industrial clients such as rural community water reticulation supply schemes, bulk pipelines and pump stations, abstraction schemes, reservoirs, industrial pipelines, water treatment works and major water resource development projects.
Our in-house team of professionals provide a one-stop shop for the design of dams and weirs (both new and/or rehabilitation projects), from undertaking feasibility studies through to detail design and construction monitoring. Our services include water resource studies, hydrological and hydraulic modelling, dam site selection, geotechnical and materials investigations, spillway design, and the design of small and large dams and associated infrastructure such as intake and outlet structures. Our capabilities also include the design and construction supervision of pollution control dams and tailings facilities in the mining industry. Finally, our professionals have been involved in many dam safety inspections, including the development of emergency preparedness plans.
Our professional team of geohydrologists provide services in groundwater supply projects and risk and impact studies, as well as compiling water use licence applications. Clients range from government departments, municipalities, parastatals, engineers, private developers, environmental practitioners, and industrial, mine and agricultural operations. Groundwater supply projects comprise groundwater potential assessments, geophysical surveys, borehole drilling, sustainable yield testing, water quality testing and equipment. The same geohydrological characterisation techniques are used in specialist studies for risk and impact in terms of probability, scale, duration and magnitude. Studies for large-scale, high-risk developments are augmented with groundwater flow and mass transport model development. All aspects of water use licence applications in terms of the National Water Act (1998) are handled by our earth scientists, who develop the required technical and administrative submission documents, including specialist studies.
JG Afrika has a well-established group of professional hydrologists who have the expertise to offer a range of services across the different types of hydrology-related projects. These include water resources assessments (hydrological modelling), floodline determinations, stormwater management plans, flood risk assessments, one- and two-dimensional hydraulic modelling and climate change impact assessments. These projects have ranged from small localised catchments all the way up to some of the biggest river basins in Southern Africa. Our team is able to offer the mining sector a wealth of experience in developing water balances, undertaking GN 704 compliance assessments and sizing of pollution control dams (PCDs), stormwater attenuation dams and other clean and dirty stormwater infrastructure. We have extensive experience in trans-boundary water management, basin-wide planning for different water usages, and the development of monitoring programmes and early flood warning systems.
JG Afrika has a strong profile in the integrated water resource management space and has worked extensively with transboundary river basin organisations (RBOs) in the SADC Region. Our experience has included working and interacting with the likes of OKACOM, LIMCOM, ZAMCOM and ORASECOM. Our team has been involved in long-term technical assistance contracts to provide support of various kinds to some of these organisations to assist them with basin-wide water resource management and planning. This has included the development and running of basin planning tools (hydrological and environmental models) to assess the impacts of competing water uses (hydropower, irrigation and domestic), analyse the impacts of climate change and the development of basin-wide flood early warning systems. All of this has involved extensive liaison and interaction with and support for the Member State organisations and the RBOs themselves.
Our water governance and planning team has considerable experience in all aspects of the water, sanitation and hygiene (WASH) sector. Our work ranges from policy and strategy development to community-based management of water supply and sanitation, across Africa, but specifically in Southern Africa. Our projects have included national-level WASH programming, global sanitation policy assessment, development of water governance models and training courses and materials, and work at international basin scale to improve access to WASH services in river basin communities.
Our specialist wastewater team has undertaken the design and implementation of nearly a hundred domestic and industrial wastewater treatment plants, from large municipal facilities to small rural package plants. This team includes process design and sludge specialists, so we are able to offer a complete wastewater treatment service from conceptual process design all the way through to sludge disposal and plant operation strategies.