Boreholes : B. Borehole rehabilitation Water, sanitation and hygiene for population at risk Sémiond, H. /Vouillamoz, Jean-Michel Moulin, J.G. EAU SOUTERRAINE AQUIFERE PUITS MAINTENANCE DEGRADATION EROSION CONTAMINATION DIAGNOSTIC POLLUTION BACTERIENNE POLLUTION CHIMIQUE METHODOLOGIE MANUEL REHABILITATION COLMATAGE AIDE HUMANITAIRE RISQUE SANITAIRE SECURITE SANITAIRE ACF Hermann Sémiond, H. (ed.) Gonzalez, F. (ed.) 2005 text https://www.documentation.ird.fr/hor/fdi:010048826 fdi:010048826 Sémiond H., Vouillamoz Jean-Michel, Moulin J.G.. Boreholes : B. Borehole rehabilitation. In : Sémiond H. (ed.), Gonzalez F. (ed.), . Water, sanitation and hygiene for population at risk ACF ; Hermann, 2005, 307-314 EN TIERS MONDE