|
|
|
|
Cost-effective boreholes
All documents related to cost-effective boreholes.
History of Hand Drilled Wells in Niger
|
|
This field note describes the history of hand drilling and water-lifting techniques introduced in Niger over 30 years and now firmly in the hands of local enterprises, farmers and water users. Recommendations for the way forward are included.
More...
|
Hand drilling methods can offer low cost, rapid access to shallow, unconsolidated
aquifers typically found in dambo environments (seasonally waterlogged African
wetlands).
More...
|
|
|
The report describes the legislative and institutional framework of the sector. The Directorate of Water Resources Management regulates the water drilling in Uganda. The Directorate licenses the drilling contractors and issues permits for drilling and water abstraction, and collects data for the national groundwater database. Every year, between 1,000 and 1,500 boreholes are drilled in Uganda. Currently applied siting as well as drilling contract formats are mostly no-water-no-pay contracts rather than Bills of Quantities contracts, which ultimately leads to lesser quality boreholes. Borehole drilling contracts by District Local Governments, constituting the largest fraction are procured after prequalification, whereas other actors also apply selected bidding or open bidding. The Sector Investment Plan (SIP) has studied various targeted service levels (access to safe water) based on selected combinations of water supply options. Combining the SIP information, current borehole costs and combined GoU / NGO funding capacity, it follows that there will be an increasing funding gap for borehole drilling.
More...
|
Study on the feasibility of manual drilling in Chad.
More...
|
Baptist drilling is similar to hand sludging, with some percussion drilling combined. The main difference is that while sludging relies on a person’s hand at the top of the drill pipe as a valve, the Baptist method uses on a valve at the bottom of the drill stem.
More...
|
|
|
Under the umbrella of the Rural Water Supply Network (RWSN), SKAT has been commissioned by USAID / UNICEF to study how to optimize the costs of boreholes construction in the three countries of Zambia, Ghana and Burkina Faso. The main output of the studies is the definition of a national protocol/code of conduct for the construction of boreholes specific to each country.
More...
|
|
|
Presentation by Yasir Sabeel and Sanpath Kumar at the National Workshop on Cost-Effective Boreholes in Sudan, November 2009.
More...
|
|
|
This report maps out the favourable zones for manual drilling and low cost pumps in parts of Madagascar. The report outlines the drilling techniques (which cost between US$80 and US$ 250 per well); the pumps (Canzee and Rope Pumps costing US$ 40 to US$ 175) and provides a series of maps of hand drilling and pump potential in the regions of Amoro I Mania, Haute Masiatra, Antisinanana. Analanjirofo, Alaotramangoro, Vatovavy Fitovinany, Anosy and Atsimo Andrefana.
More...
|
|
|
|
Forgot your password?
New user?
