As the adage goes “Water is life”. Water is essential for physical, mental, social and economic growth of human being and society.
Uses of water;
- For drinking and cooking
- For washing and bathing.
- For protecting life and property against fire.
- For industrial uses such as in the production of beverages, food processing etc.
- For recreational facilities such as swimming pools, fountains etc.
- For removing wastes from domestic and industrial premises in form of sewage
To satisfy the above mentioned needs, water supply must be satisfactory both in quality and quantity. It should be readily available to the consumers every time and should be conveniently disposed of after it has served its purpose.
NCWSC is committed to ensuring that the water supply in its service areas meets these criteria.
Engineering installation necessary for water supply provision:
Water Treatment Works;
This is the place where water abstracted from a source such as dams, springs etc. is treated to make it safe before it is distributed for public usage. Major installations at water treatment works include: pumps for transfer of water from one point to another, plant and equipment for mixing the water with necessary chemicals to facilitate purification processes, sand filters for filtering out impurities from the water and temporary storage reservoirs. Kabete and Ng’ethu Water Treatment Plants are examples of water treatment works.
Water Distribution Systems;
These comprise the installations required to transfer water from the treatment works to the consumer. They include: (i) Water reservoirs (tanks) for temporary storage of water; (ii) pipe networks with pipes of various materials and sizes conveying water to the consumer. The pipe networks contain various fittings for carrying out specific function such as gate valves and air releases valves which regulate the flow of water and release air as necessary in the network respectively, fire hydrants for conveniently providing large amounts of water from pipe mains for fire extinguishing purposes and water meter for measuring water flows at various points in pipes.
Waste water disposal systems;
These basically comprise of: (a) the Sewerage networks; comprising of sewers (pipe) that collect and remove waste water (or sewerage) from its point of production to place where its treated (b) Sewerage Treatment plants where sewerage is treated to standards that allow it to be safely disposed of into the environment.