Journal article

Initial observations of water quality indicators in the unconfined shallow aquifer in Dili City, Timor-Leste: suggestions for its management

Marcal Ximenes, Brendan Duffy, Mafaldo J Faria, Kate Neely



The management of groundwater quality is a critical issue in developing nations where sanitation and drinking water targets are commonly addressed by facilitating access to groundwater, which is then managed as a common-pool resource. We investigate the quality of the shallow unconfined groundwater in Dili’s alluvial fan system, which 50% of Dili’s rapidly growing population use for all their water requirements. Using the basic chemical and microbiological analyses that are locally available (sulfate, total hardness, fluoride, manganese, iron, ammonia, nitrite, nitrate, total coliform and E. coli) we show that the shallow wells commonly contain enhanced concentrations of dissolved solids and..

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University of Melbourne Researchers


Funding Acknowledgements

Field and laboratory costs were provided by the Instituto do Petroleo e Geologia, Timor-Leste. Publication costs were covered by a grant to Duffy and Neely from the Melbourne Energy Institute at The University of Melbourne. We thank the review and editorial team for their efforts; the management team at IPG for facilitating the research; the people of Dili for discussion and access to well sites; Direcao Geral da Estatistica Timor-Leste for data sharing; Laboratorio Nacional da Saude, Timor-Leste for use of facilities. We dedicate our efforts, now and in the future, to the people of Timor-Leste.