Technical Documents

Potential structural risks posed by borehole drilling

Knowledge Hub » Technical Documents

The risks of borehole drilling to nearby structures Can drilling a borehole crack my house? Groundwater drilling is a critical process for accessing subterranean water reserves and involves various techniques tailored to geological conditions and the type of borehole required.   Common methods for borehole drilling include: (1) cable tool drilling, which is one of […]

Posted on 14 May 2024

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What is a water level logger and what is it used for?

Knowledge Hub » Technical Documents

Written by Lincoln Jordan We break down the different parts of water level loggers and what they are used for as well as tips and tricks to read water level loggers. Sensors: What is a sensor A sensor is a device or element designed to detect and measure various physical properties, responding to changes by […]

Posted on 10 April 2024

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Driller’s Airlift Yield- dam and V-notch

The Dos and Don’ts of Testing Borehole Yields

Knowledge Hub » Technical Documents

Written by Kes Murray   Many boreholes get over-pumped, leading to pump failure/burnout, borehole clogging, impacts on other groundwater users and spring flows, and even land subsidence. While this is usually only discussed when a neighbouring land owner drills new boreholes or when large infrastructure investments are lost due to yield drops after 2 months […]

Posted on 29 September 2022

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South African Groundwater legislation and requirement paperwork

The National Water act: Why the motivation for a Water Use License is so important

Knowledge Hub » Technical Documents

Understanding the National Water Act: Section 27 In this article, we are going to explain the process of getting a Water Use Licence (WULA) in accordance with the National Water Act and why section 27 (motivation) is important. Once a borehole has been sited and drilled, yield and quality testing been completed and the WULA […]

Posted on 29 June 2022

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Groundwater – general guidelines towards monitoring and management (funded by Potatoes South Africa)

Technical Documents

The intention is to provide a broad overview of groundwater resources in terms of how it occurs (its distribution across South Africa)
as well as an overview of the complete “life cycle” of groundwater development projects (starting with drilling and on through yield testing; monitoring and all the way to the authorization of the use of groundwater).

Posted on 16 February 2022

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Sustainable Groundwater Use

Technical Documents

South Africa (SA) is a water scarce country that is characterised by extreme climatic conditions and evaporation rates that often exceed precipitation. The country is projected to have a 17% water supply deficit by 2030 (DWS, 2019). This can be mitigated by increasing water efficiency and diversifying water sources. By 2040, alternative sources such as […]

Posted on 23 September 2021

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Bore hole water shooting up

The comprehensive checklist for drilling a borehole

Knowledge Hub » Technical Documents

Written by Dale Barrow  Drilling and having a borehole is an asset that should last you at least 10 to 15 years at very little ongoing cost, provided you do everything correctly at the start! If you don’t, it can become a very expensive and time-consuming liability with continual repair or replacement of pumps. The […]

Posted on 13 September 2021

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Construction of the Kharkams Sand Bed Filter

What is Managed Aquifer Recharge (MAR) and How Does it Work?

Knowledge Hub » Technical Documents

By Kes Murray Understanding Groundwater recharging Managed Aquifer Recharge (MAR), sometimes referred to as Artificial Recharge, is the process by which a water source is intentionally injected or infiltrated into an aquifer. There are a wide variety of reasons for doing this, as well as a range of methods and technologies that are used to […]

Posted on 8 February 2021

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Drill Rig

Borehole Yield Testing

Knowledge Hub » Technical Documents

How to correctly follow a borehole yield test? The South African National Standard for the test pumping of water boreholes (SANS 10299-4:2003) clearly prescribes how the borehole yield testing is to be carried out. Remember the Department of Water and Sanitation (DWS) will only authorise groundwater use if the correct (above) method of borehole yield […]

Posted on 24 October 2020

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Sustaining Groundwater Resources in a Unique Region of South Africa

Knowledge Hub » Technical Documents

Just 200 km north of Cape Town, South Africa, you’ll find a unique area that boasts a wide range of landscapes – from rugged mountains to lush river valleys.

Posted on 9 April 2020

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