Characterization and monitoring of the regolith aquifer within four selected cascades (sub-watersheds) of the Malala Oya Basin [Sri Lanka].

The groundwater present in the hard rock region of the dry zone of Sri Lanka is made up of the shallow 'Regolith Aquifer' and the deeper fracture zone aquifer is now clearly recognized. However, up to now no study had been carried out or reported in this country on the dynamic nature of this shallow regolith aquifer. This is the very first study carried out and reported in this regard. As part of the study, the impact of the Mau Ara trans-basin canal on the groundwater conditions below the area of influence of this trans-basin feeder canal has also been examined.

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Bibliographic Details
Main Authors: Panabokke, Christopher R., Ariyaratne, Badugodahewa Ranjith, Seneviratne, A., Wijekoon, D., Molle, Francois
Format: Working Paper biblioteca
Language:English
Published: International Water Management Institute 2007
Subjects:aquifers, groundwater recharge, groundwater depletion, water table, monitoring, watersheds, wells, electrical conductivity, water quality, fluorides, heliothis, pumping, river basins, canals,
Online Access:https://hdl.handle.net/10568/39219
https://www.iwmi.cgiar.org/Publications/Working_Papers/working/WOR122.pdf
https://doi.org/10.3910/2009.307
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Summary:The groundwater present in the hard rock region of the dry zone of Sri Lanka is made up of the shallow 'Regolith Aquifer' and the deeper fracture zone aquifer is now clearly recognized. However, up to now no study had been carried out or reported in this country on the dynamic nature of this shallow regolith aquifer. This is the very first study carried out and reported in this regard. As part of the study, the impact of the Mau Ara trans-basin canal on the groundwater conditions below the area of influence of this trans-basin feeder canal has also been examined.