Groundwater potentials in Naivasha: case study Naivasha East area, Kenya
Abstract
The report describes an area of about 1square km located in the Rift valley part of Kenya
and about 100Kms east of Nairobi city. It’s bounded by latitudes 36020’E to 36030’E and
by longitudes 0030’S and 0050’S. The area consists of numerous hills and valleys as well
as plateau like the Kinangop plateau. The area is sparsely populated mainly on the
northern side due to low lands of less production and also the bushy ranches and low
rainfalls. Also high temperatures are a major reason for the low population density.
Accessibility in the area is good apart from some areas like Eburru, Malewa east and
other parts on the north eastern part of the map i.e. Turasha and Magogo areas. The
area is well served by one major highway; Nairobi-Nakuru road and some other feeder
road roads like the Naivasha-Kinangop road. Also there are some numerous all weather
roads which serve the interior small towns like Murungaru, kitiri, Matundura and Kirima
as well as Maraigushu, Njabini and Engineer area
The rocks exposed consist of tertiary sediments and pyroclastic in most part of the area.
Trachytic tuffs are found to the southern side of the area in Kayole and Nyamathi areas
and some sediment on every river channel. Several rock units are observable which to
some extent affect the groundwater potential of the area.
The area experiences some shortage of pure clean water which it seems to be analogous
to the fact that the area consists. Places like Kinamba and Kayole areas water is mainly
sold at a very high price due to its shortage. This is not because the area cannot yield
enough water but little prospecting has been done which led to the thought of assessing
the productivity of this area.
The describes how to come up with areas with higher yields that can be used to produce
well fields that can yield water to be even channeled to other areas with less
productivity. This is achieved by analysis of the already drilled boreholes yields and
specific capacity and drawdowns. We contour or prepare a contoured map using
transmmisivity of each borehole.
The contoured map will show areas with higher transmmisivity hence higher yields.
These areas can be proposed to the relevant organizations for the production of well
fields. Later we recommend the establishment of these fields hence reducing the water
scarcity in these areas.
Citation
degree of Bachelor of Science in Geology.Sponsorhip
University of NairobiPublisher
University of Nairobi Geology