Water Resources Consultants

Water demand assessment, groundwater resources investigations and development of additional resources to augment the existing water supplies to meet the demand four villages up to the year 2025 was the primary aim of the project. Specific project activities involved desktop study, geophysical surveys for borehole siting, drilling and test pumping supervision of production boreholes. The following activities were completed;

• Detailed review of existing water demand and forecasts
• Hydrocensus and reconnaissance survey
• Interpretation of Aerial Photographs, Aeromagnetic Data and Hydrogeological Data
• Developing conceptual hydrogeological model and initiation of groundwater exploration programme
• Conducting ground geophysical surveys in all villages mostly using magnetic profiling, VES and TEM
• Drilling of 6 boreholes in Semolo wellfield and 9 boreholes still outstanding for Mababe, Komana and Mogotlho Villages
• Test pumping of 5 boreholes in Semolo Wellfield

Department of Water Affairs, Gaborone, Botswana
Contact Person: Thato Setloboko
Tel No. 3607383

The primary objective of the project was to carry out geophysical survey and siting of 8 boreholes along the Nata– Kazungula road for road construction water requirements. Specific project activities involved desktop study, hydrocensus and reconnaissance survey, geophysical survey and reporting. Geophysical survey included aeromagnetic data interpretation for delineation of target areas within the radius of 1km from the road alignment, ground geophysics using TEM, and magnetic profiling. The project area is within Wildlife Management Area and therefore posed a serious risk to the staff deployed.

Sladden International Engineering (Pty) Ltd,
Francistown, Botswana
Contact Person: Nuwan Jayasekara
Tel No: 2402112

The project aim was to investigate and develop groundwater resources for the construction of a tarred road linking of Bobonong – Tsetsebjwe Villages in eastern Botswana. The plan was to drill 5 boreholes aligned at spacing of 10km along the road and each capable of giving daily output of 250m3.The following activities were completed during the implementation of the project

• Detailed review of existing water supply sources in vicinity of Bobonong and Tsetsebjwe villages as well as along the road alignment
• Interpretation of Aerial Photographs, Aeromagnetic Data and Hydrogeological Data
• Conducting ground geophysical Survey using HLEM, Magnetic profiling and VES the granitc basement and sandstone formations
• Supervision of drilling works
• Data Interpretation and reporting

Unik Construction Engineering (Pty) Ltd,
Gaborone, Botswana
Contact Person: H. B. Wang / John Rodigro
Tel No: 3924965/ 262 9993

The overall goal of the project was to develop groundwater supply sources for the 5 villages northwest Botswana to alleviate water shortages and to develop sustainable sources to meet the water demand by the year 2014. The following tasks were undertaken during the implementation of this project;

• Water Demand Assessment for all villages
• Analysis of existing hydrogeological data for conceptual model development
• Ground geophysical surveys using TDEM, Magnetic profiling, HLEM profiling and Vertical Electrical soundings
• Supervision of Drilling of 17 boreholes and test pumping of 13 successful production boreholes
• Data interpretation and recommending sustainable groundwater abstraction rates
• Water quality analysis for assessment of potability

Department of Water Affairs,
Gaborone, Botswana
Contact Person: Thato Setloboko
Tel No. 3607383

The aim of the project was to develop an understanding of the potential of the local aquifers in terms of sustaining the water supply for mining and ore processing operations for the proposed mine. It also sought to provide recommendations for further groundwater exploration, drilling and pump testing for development of a wellfield for the proposed new mine situated close to Toteng Village in the North West district. The desk top study and pilot drilling tasks included the following

• A review of existing hydrogeological literature in the study area
• Design of hydrogeological cross sections
• Development of conceptual hydro geological model
• Drilling supervision during of 5 pilot exploration boreholes
• Preliminary groundwater sources quantification

Discovery Metals Limited,
Gaborone, Botswana
Contact Person: Fredrick Nhiwatiwa
Tel No.: 318 0751

The Bokspits area groundwater potential survey project was initiated by the Department of Geological Survey, Botswana to assess the groundwater potential of the region covering an area of approximately 7435 km2 and to identify areas with suitable groundwater resources for livestock and domestic use. Drilling and geophysical logging of exploration boreholes was one of the project tasks. Water Resources Consultants (WRC) was subcontracted to conduct borehole geophysical logging of exploration boreholes with the specific objectives of: interpretation of lithological boundaries, estimation of aquifer depths and thickness and for providing design (casing, screen intervals) for construction of boreholes. The project tasks included the following;

• Logging of 35 boreholes, amounting to a total of 5374 m, with a logging interval ranging between 0.02 to 0.1 m. The logged parameters were: Natural Gamma, Resistivity (16” and 64”), SP, Density, Neutron, 3 Arm Calliper and Temperature
• Detailed data processing and interpretation and Reporting

Geoflux Pty Ltd & Dewet Drilling (Pty) Ltd,
Gaborone, Botswana
Contact Person: R. Dewet
Tel No.: 5729000

Projected was aimed at locating and developing groundwater resources to meet the year 2023 domestic supply for four primary demand centres collectively known as Matsheng Villages (Hukuntsi, Tshane, Lehututu and Lokgwabe) and also other secondary demand centres located in the northern Kgalagadi District and central and southern Ghanzi District. The water demand by 2023 for both primary and secondary demand centres was estimated at 1655 m3/day (0.60 million cubic meters per day). Work included updating of demand forecasts, geophysical surveys (TDEM) and comprehensive resource assessment through drilling, test pumping, assessment of sustainable well field abstraction through numerical modelling, groundwater quality assessment, development of a new well field, recommendations for well field management and monitoring.

Department of Water Affairs, Government of Botswana, Private Bag 0029, Gaborone, Botswana.
Contact Person: N. Mangisi
Tel: +267 3607375 / 3607100

The primary objective of the project was the construction of new well fields sufficient to supply the town of Maun (pop. 70,000) with drinking water through a project horizon of 2020. Specific project activities involved geophysical borehole siting, drilling supervision and test pumping of exploration and production boreholes in four exploration areas in environmentally sensitive environments. Additional activities included demand assessment, numerical modelling of well fields to assess sustainable yields under a variety of climatic/recharge conditions, design of comprehensive monitoring networks, completion of a collector well feasibility study and preparation of detailed well field operations and management programmes.

Department of Water Affairs, Government of Botswana, Private Bag 0029, Gaborone, Botswana.
Contact Person:
J. Ntsatsi
Tel: +267 3607100

Tasks undertaken included evaluation of various collector well technologies and potential for their use in the Okavango delta environment. Also carried out a detailed pilot collector well site characterisation thorough the installation of piezomters by hand augering, jetting and drilling, grain size analysis, slug and pump testing, water level monitoring and water quality sampling/analysis as well as numerical modelling. At the completion of the site characterisation a report containing the location and design of a pilot collector well together with detailed design and contract document were prepared.

Department of Water Affairs, Government of Botswana, Private Bag 0029, Gaborone, Botswana.
Contact Person:
J. Ntsatsi
Tel: +267 3607100

The project involved groundwater exploration thorough airborne & ground geophysical surveys, Resource Assessment and Development over an area of 3,445 square kilometres located in South-western Botswana. Work included interpretation of remote sensing and hydrogeological data, development of conceptual hydrogeological model, testing and evaluation of various geophysical methods and appropriate ground geophysical surveys for borehole siting, drilling and testing of 20 exploration boreholes and 15 production boreholes, water quality sampling and analysis, modelling of potential areas for groundwater development, recharge studies and hydrogeological training and capacity building.

Department of Water Affairs, Government of Botswana, Private Bag 0029, Gaborone, Botswana.
Contact Person:
M. Moehadu
Tel: +267 3607100

This was a multi-disciplinary project involving groundwater exploration in an extremely complex sedimentary environment in the distal Okavango Delta, covering an area of more than 12,500 km2. The primary goal of the project was to identify areas with sufficient potable groundwater resources to supply the town of Maun through to 2012. Works included GIS database creation, conceptual hydrogeological modelling, airborne & ground geophysical surveys, supervision of drilling for 111 boreholes (mud-rotary), pumping tests, water sampling for chemical and environmental isotope analysis, groundwater model for the existing well field, future well field development delineation and modelling, assessment of natural and artificial recharge, evaluation of suitable drilling techniques, training and capacity building for DWA personnel.

Department of Water Affairs, Government of Botswana, Private Bag 0029, Gaborone, Botswana.
Contact Person:
G.G. Gabaake
Tel: +267 3607100