This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike License. Your use of this material constitutes acceptance of that license and the conditions of use of materials on this site. Copyright 2006, The Johns Hopkins University and Clive Shiff. All rights reserved. Use of these materials permitted only in accordance with license rights granted. Materials provided “AS IS”; no representations or warranties provided. User assumes all responsibility for use, and all liability related thereto, and must independently review all materials for accuracy and efficacy. May contain materials owned by others. User is responsible for obtaining permissions for use from third parties as needed. Water in a Rural Setting • Water as a human need: how can it be obtained? • Open water: ponds, rivers: problems in delivery, quantity available, drought etc. • Groundwater: what sources? How can this be accessed safely? • Conditions to sustain supply. Underground water is a useful source Water Table: what is it? How can we use it? An unconfined aquifer is underground water confined between impermeable strata and the surface This is just a device to ease the lifting of water: there is no means for protecting the water from surface contamination, not only animals but children can fall in. It is definitely NOT SAFE. Water in a rural setting-2 • Drilling for water: the Von der Rig • Replenishing aquifers with dam construction • Simple dam scoops • Water springs: how to protect and exploit them. Water purity • Point source purification – – – – Pro: Cons: Cons: Cons: avoids pathogen transmission; limited supply (water washed diseases) cleanliness of containers expense and inconvenience
© Copyright 2026 Paperzz