News and Press
Welcome to part-1 of a 4-part series concerning the drilling and equipping of boreholes. We shall cover the entire process from having the site survey to commissioning of the borehole.
A borehole is a narrow shaft bored into the Earth’s crust in order to locate gas, water, oil or for other purposes. Here, we shall limit our scope to water.
Did you know that the deepest borehole on Earth is the Kola Superdeep Borehole in Russia?
Typical borehole depths in Kenya vary according to area and hydrogeology. E.g. in Nairobi, Karen, typical borehole depth is 400m and in Embakasi, 250m.
Before embarking on drilling a borehole, it’s important to note the items that you may require. In Kenya, you will require 3-documents
- Hydrogeological Survey.
- NEMA (National Environment Management Authority) permit.
- WRMA (Water Resources Management Authority) drilling permit.
The contractor will be required to have been registered fully with National Construction Authority (NCA).
The Hydrological survey report is obtained from a registered hydrologist.
With this information, you can approach a Drilling Contractor to do the actual drilling for you.
Once the borehole has been drilled, the driller will issue a Borehole Completion Record (BCR) from WRMA that contains important information concerning that borehole. This information can then be shared with us so that we can do a proposal for the most suitable equipment.
The Borehole Completion Record has information such as
- Borehole depth.
- Tested yield.
- Borehole profile.
- Static Water Level, SWL.
- Pumping Water Level, PWL.
Other information that the borehole owner will need to avail is:-
- Distance to power house from wellhead, d1.
- Distance from power house to water delivery point d2.
- Horizontal distance to water delivery point, d3.
- Elevation from well head to water delivery point.
- Existing pipe material, and diameter.
The above information will help us get the appropriate cable length and pipe length. The pipe length and diameter are important for getting the frictional head loss which are an important component of the Total Dynamic Head, required for the specification of suitable equipment.
With this information, we’re ready to do a borehole equipping proposal for you.
In our part two, we shall cover the borehole equipping process and what you need to know. Kindly contact us if you need referrals about a hydrogeologist or a drilling contractor by clicking here.
Credits – Peter Munyoki, This email address is being protected from spambots. You need JavaScript enabled to view it.
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Ugandan go to the polls on Thursday 18th February. Our Uganda branches will remain closed on that day and will reopen on 19th February. However, incase you need urgent attention, please reach us through the contact information here
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The AFWA 2016 Congress took place on the 22nd - 25th of February at the KICC in Nairobi, Kenya. The African Water Association (AfWA) is a self-governing non-profit organization which aims to cover all facets of the water cycle.
The group's mission is to serve as a continental network for water professionals and to advancing standards and best practices in sustainable water and sanitation management.
The African Water Association (AfWA), formerly known as Union of African Water Suppliers (former UAWS) is a professional association of organizations, utilities and operators working in the water, sanitation and environment related sector in Africa. Since its creation in February 1980, its main objective has been to develop the professional capacities of its members in order to achieve its vision regarding the access to drinking water for all Africans.
The AFWA has more than 100 member utilities in over 40 countries in Africa, and its head office is located in Abidjan, Cote d’Ivoire.
Davis & Shirtliff was among be among the exhibitors at the conference. Below is a gallery of some photographs taken during the event. Click on a thumbnail to view a bigger size of the photo.
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On the eve of its 70th anniversary, leading water and energy solutions providers Davis & Shirtliff recently officially opened its newly constructed Coastal headquarters in Mombasa.
The opening was carried out by CEO Alec Davis’s wife Christine and was attended by over 150 customers and business partners who were impressed with the facilities available. The state of the art premises is a striking, modern looking four-storey building situated on Jomo Kenyatta Avenue and is a short distance from the company’s previous office building. Custom designed for the firm’s requirements, the new premises are substantially larger and include a showroom, offices and warehousing as well as workshops and training facilities which will support operations in the Coastal region.
Of note is the fact that the building is entirely self-sufficient and is equipped to provide its own power and water through a solar/diesel hybrid system and a borehole with treatment plant. Air conditioned throughout the working areas, the layout has been designed to provide better efficiency and ergonomics to both customers, who will benefit from a one stop shop showroom area, and staff who will enjoy upgraded working, training and canteen areas. Also cutting edge is the use of IT solutions in the building which is wireless throughout and uses digital voice software via laptops to avoid the need for physical telephones, the total absence of which is striking. The new facility signals the company’s intention of offering and developing the latest technologies to provide smart solutions for the water and energy requirements of its customers throughout the region.
Davis & Shirtliff Coast has been established for over 16 years having taken over the business of Butech Ltd in 2000 and is now the acknowledged industry leader in the region. Under the energetic leadership of GM Mohamed Farook, the business operates through a network of branches in Malindi, Diani, Nyali, Lamu and Voi and the team of over 50 staff are looking forward to offering higher levels of product and service support and providing higher service levels to its customers. Davis & Shirtliff Coast is part of the Nairobi based Davis & Shirtliff Group which is the leading regional supplier of water pumps, water treatment, solar and swimming pool equipment and generators and operates through a network of over 40 branches in Kenya and six other countries in the region
You can click on the thumbnails below to view a bigger resolution of the photo
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Kampala
P.O Box
Uganda
