Assessment of groundwater level fluctuation trends in Grootfontein dolomite Aquifer, North West Province, South Africa

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Date

2022

Journal Title

Journal ISSN

Volume Title

Publisher

University of the Western Cape

Abstract

Groundwater level decline is a problem experienced in aquifers with more than one groundwater user such as the Grootfontein dolomite aquifer in the North West Province of South Africa. This study assessed groundwater level fluctuation trends for monitoring boreholes within municipal and irrigation groundwater abstraction areas. The study also determined the influence of rainfall and municipal groundwater abstraction as the dominant factors responsible for groundwater level fluctuation in the area. The study further recommended possible interventions for declining groundwater levels within the Grootfontein dolomite aquifer study area. Analysis of groundwater level fluctuation trend was conducted from 1980 to 2020 using Mann-Kendall and Sen's slope statistical tests. The results showed that groundwater levels in the study area had a declining trend. Spearman rank correlation was used to determine the influence of rainfall and municipal groundwater abstraction on groundwater level fluctuation within the study area.

Description

>Magister Scientiae - MSc

Keywords

Groundwater, Climate change, Rainfall, North West Province

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