Title | How to climate proof water and sanitation services in the peri-urban areas in Lusaka : work based on field visit to Lusaka undertaken in May 2010 |
Publication Type | Miscellaneous |
Year of Publication | 2010 |
Authors | Heath, T, Parker, A, Weatherhead, K |
Pagination | 38 p. : 5 fig. |
Date Published | 2010-06-01 |
Publisher | Water and Sanitation for the Urban Poor, WSUP |
Place Published | London, UK |
Keywords | peri-urban communities, water kiosks, water supply and sanitation in peri-urban areas and small centres programme, zambia, zambia lusaka |
Abstract |
This report evaluates the impacts of climate change on water and sanitation technologies in two peri-urban areas in Lusaka, Chazanga and Kanyama, and the potential adaptations required to mitigate the impacts. Under current forecasts of climate change, the mean temperature in Zambia is predicted to increase. It is less certain how average precipitation will be affected, but both floods and droughts will occur more often. Chazanga is most at risk to a decrease in precipitation which will cause a lower water table. This will result in water scarcity, damage to infrastructure and drying up of shallow wells, all of which will increase the demand for new kiosks. In addition, decreased rainfall will affect hydroelectricity generation and cause power shortages. However, if precipitation (or its intensity) increases, there will be flood damage to boreholes, kiosks, septic tanks and pit latrines and poor drainage at kiosks. Kanyama is most at risk to an increase in precipitation, resulting in an increase in flooding (currently Kanyama’s floods last for 3 months). Flooding causes kiosks and buildings to collapse, contaminates water supplies (particularly the shallow wells used in the unserved areas) and affects livelihoods, education and health. Flooded latrines and contaminated water will increase cholera and diarrhoea. Potential short, medium and long term adaptations were identified for the Water Trusts, Lusaka Water and Sewage Company and the City Council. The adaptations were determined based upon a field visit, a vulnerability assessment and a literature review. The key recommendations are as follows and should be developed within a water safety plan: |
Notes | 32 ref. |
Custom 1 | 210, 300 |