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International (i.e., beyond the navel-gazing confines of the U.S.A.) links with a ground water focus
The BGS has a long history of distinguished earth science, very good source of African information (and very active on Twitter with numerous handles)
General interest geology links resource
Raising GW awareness in the U.K.
Department of Planetary and Earth Sciences
Secteur d'Hydrogéologie et de Géologie de l'Environnement
Literature on ground water in southern and eastern Africa housed by the British Geological Survey
Abundant information resources on ground water in Africa
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Appalachian Plateau Office22 Edgewater Dr.Poland, OH 44514330-787-0496Contact
Chlorine may alleviate the symptoms of a contaminated well, but it cannot solve the root of the problem. You must seal the leak or remove the source.