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Situational Analysis of Groundwater Resources in Kenyan Drylands, Case study of Turkana County
Kenyatta University, Kenya.
Kenyatta University, Kenya.
Kenyatta University, Kenya.
The Nordic Africa Institute, Research Unit.ORCID iD: 0000-0001-9842-0094
2024 (English)In: International Journal of Environment and Geoinformatics, E-ISSN 2148-9173, Vol. 11, no 3, p. 1-10Article in journal (Refereed) Published
Abstract [en]

Recent climate changes have increased the incidences of severe droughts and floods, which have increased the vulnerability ofpastoralists in the Kenyan drylands. Thus, there is a need to carry out a situational analysis of groundwater as it is the main source ofwater which provides baseline information useful for planning Analysis of results indicates that Turkana County is dominated byshallow wells and boreholes with the shallowest wells located along the seasonal rivers and Lake Turkana. The borehole depth wasfound to range between 20 to 200m. Most of the boreholes located near Lake Turkana were shallower compared to those far away fromthe lake with a depth ranging between 0 to 52m. Most of the boreholes had a low yield that ranged between 1.2 to 4.6m3/hr be attributedto the basement rocks which are prevalent in the county and are classified as poor aquifers. The water points were mainly dense inurban areas, which was mainly the central region where the water demand was high and this was attributed to the high population. Thegroundwater levels occurred mostly at 13m indicating that Turkana County has mostly shallow aquifers that predominantly occurredalong the river valleys and at the edge of the volcanic deposits. The groundwater quality is mainly saline as most of the boreholes hadhigh TDS, EC and chloride levels. The presence of high fluoride levels indicates the presence of high volcanic rocks that have highfluoride ions that are largely prevalent in the study region. The Sulphate, Nitrite and Nitrate Levels in all the water samples analyzedwere below the EU, WHO and KEBs standards indicating the low anthropogenic activities carried out in the drylands as most farmersare pastoralists. The most prevalent cation was sodium in some of the boreholes indicating why the groundwater was saline.

Place, publisher, year, edition, pages
2024. Vol. 11, no 3, p. 1-10
Keywords [en]
Groundwater, Water quality, Water levels, Climate change, Boreholes, Kenya
National Category
Environmental Sciences
Research subject
Natural resources and environment
Identifiers
URN: urn:nbn:se:nai:diva-2976DOI: 10.30897/ijegeo.1398321OAI: oai:DiVA.org:nai-2976DiVA, id: diva2:1894157
Available from: 2024-09-02 Created: 2024-09-02 Last updated: 2024-09-20Bibliographically approved

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12345674 of 9
CiteExportLink to record
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Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf