 Kano City Water Supply Intakes
The various intakes that draw water from the Challawa and Kano rivers into the Kano city waterworks operate inefficiently. For these intakes to provide the water required in the waterworks, much extra water over and above this requirement (in fact the intakes only draw in less than 5% of the water passing them) has to be released from the upstream reservoirs. In the dry season this extra release is just a waste.
Studies have confirmed that the problem is caused by the bad citing of the intakes and/or the poor operational status of some of their submersible pumps. The Kano State government is very much aware of this problem and is currently constructing one additional intake as well as taking effective remedial measures on the existing ones.
JWL has been working with Kano City Water Board and Hadejia Jama’are River Basin Development Authority to develop these measures to improve the efficiency of the intakes. The project funded a small study that recommended simple modifications on the rivers, based on which the KCWB promptly invested about ₤8,000 to construct a temporary barrier in the Challawa River, improving abstraction efficiency to more than 30%. Further improvements have since been effected.
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