Subject(s): Water and Health -- Principles of well digging : groundwater occurrence, health aspects of well construction, self help well construction projects, preparatory work -- Standard well sinking practice : Preparation of site and setting up head frame, excavating and lining top section, sinking and lining shaft to aquifer, caissoning into aquifer and construction of intake, construction of wellhead, disinfection of well before use, safety measures -- Alternative techniques and materials : Sinking under difficult soil conditions, alternative materials and other methods for caissoning from surface, improving existing wells, improving yield of well -- Description of standard equipment and materials : Schedule of equipment, notes on use of tools and equipment, low cost timber shutter, concrete -- Additional information : Water lifting from hand dug wells, costs of self help, hand dug, well construction programs, contacts for further information, useful references