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Groundwater is one of the major sources of exploitation in arid and semi -arid regions. To protect this scarce resource information on its quality status over time is important. This paper examines the quality of groundwater from domestic water supply boreholes across rural Botswana. Ionic concentrations of K + , Na + , Ca 2+ , Mg 2+ , F -, Cl -, SO 4 2-, HCO 3 -, Fe 3+ , Mn -, and N. Parameters such as pH, total dissolved solids (TDS), and electrical conductance (EC) were correlated and theirdoi:10.4314/ejesm.v5i4.s12 fatcat:7yxi44ao7fdb5enftlttfw6hja