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Fourth Water Supply Project |
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Location |
Greater Dhaka
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Type of Project |
Water Resource Management
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Period of Study |
September, 1997 to June, 1998
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Client |
WSP International, UK |
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Simulated Potential Head of Lower Aquifer of Greater Dhaka: Jan’97 |
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Description
The World Bank funded
Fourth Dhaka Water Supply Project (of Dhaka Water Supply and Sewerage
Authority) started implementation of a Water Resources Management
Programme for the Greater Dhaka in 1997. WSP International UK, the
Consultant of the project, subcontracted SWMC to carry out mathematical
modelling studies to evaluate the water resources availability (quantity,
quality and location) in and around the Greater Dhaka and to predict the
responses under various future development and management scenarios. SWMC was involved with the
study in three components: surface water quantity and quality modelling,
groundwater modelling and development of a Management Information System
(MIS) for DWASA. Surface water modelling involved field data acquisition,
water quality data monitoring, estimation of pollutant loadings, and
development and application of a water quantity and quality model.
Groundwater modelling involved secondary data collection from different
sources and development and application of a groundwater model for Greater
Dhaka. SWMC, in collaboration with DHI, Denmark, developed a groundwater
model for an area of 670 km2. The model was calibrated for the
period 1991-97. The surface and groundwater
models were coarse in nature. However, the study demonstrated that
development of a Conjunctive Water Management Plan of surface and
groundwater might be the only long–term sustainable solution to meet the
increasing demand of supply water in the Greater Dhaka.
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