COMPARISON OF WATER HARVESTING WITH BOREHOLE WATER AS ALTERNATIVE SOURCES OF WATER FOR SYOKIMAU AREA IN MAVOKO MUNICIPALITY

ABSTRACT
The purpose of this study was to compare water harvesting and borehole water as alternative
sources of water for Syokimau area in Mavoko Municipality. This study is accomplished by
determination of water availability, reliability of the sources, the quality of water and assessing the
better alternative source of water in Syokimau.
The availability and reliability of water harvesting was carried out through rainfall analysis for the
area while that of borehole water was carried out by analysis of existing borehole data within
Syokimau. Samples for each of the water source were collected and tested at the Public Health
Engineering Laboratory of the University of Nairobi.
The study showed that the water availability from both sources were sufficient for domestic use.
Boreholes in the area yields an average of 160.9 l/min while water harvesting yields 336.4 m3 of
water for an average roof area of 375 m2. However water harvesting could not be relied upon as
rainfall in the area varies through different seasons. The water quality tests confirmed that water
from both sources met the water quality standards (Guidelines for Drinking-water Quality – WHO,

2011) and therefore is suitable for domestic use.
The borehole water was found to be a better alternative source of water compared to water
harvesting within Syokimau area and therefore the most suitable one for domestic use.

 

 

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