Hydrogeology and Groundwater Quality Atlas of Malawi : Water Resource Area 11: The Lake Chiuta Catchment

Kalin, R.M. and Mleta, P. and Addison, M.J. and Banda, L.C. and Butao, Z. and Nkhata, M. and Rivett, M.O. and Mlomba, P. and Phiri, O. and Mambulu,, J. and Phiri, O.C. and Kambuku, D.D. and Manda, J. and Gwedeza, A. and Hinton, R. (2022) Hydrogeology and Groundwater Quality Atlas of Malawi : Water Resource Area 11: The Lake Chiuta Catchment. Ministry of Water and Sanitation, Lilongwe, Malawi.

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Abstract

Groundwater in Water Resource Area 11 is interpreted within the same context as presented in the Hydrogeology and Water Quality Atlas Bulletin publication. A general description of the Hydrogeology of Malawi and its various units is provided here to remind the reader of the complexity of groundwater in Malawi and its nomenclature. The various basement geologic units have variable mineralogy, chemistry, and structural history that may be locally important for water quality parameters such as Fluoride, Arsenic and geochemical evolution. Therefore, translation of geologic units to potential hydrostratigraphic units was based on the 1:250,000-scale Geological Map of Malawi compiled by the Geological Survey Department of Malawi (Canon, 1978). Geological units were grouped into three main aquifer groups for simplicity.

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