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Title: Groundwater recharge in urban areas
Author: Environment Agency Midlands Region
Document Type: Monograph
Annotation: EA additional title info: November 2002
Estimation of recharge and runoff is an important part of water resource management and a fundamental component of all regional groundwater models. At present, the estimation of recharge in urban areas is subject to considerable uncertainty. In most water resources studies, estimates of a percentage of impermeable area are used along with modified soil moisture deficit calculations to estimate the amount of potential recharge which is able to percolate to the water table. These estimates are not validated against measured runoff data because such data are not generally available. Extensive modelling of urban drainage networks has been carried out for many UK towns and cities to aid sewerage design and construction using specialised software. These projects could provide a useful, and currently untapped, source of information, which could help improve the estimates of groundwater recharge in urban areas. The objectives of this study were to critically review the approach followed in urban drainage modelling studies and to determine whether output from such work could be used in water resource studies, both historically and by considering indicative results from current urban drainage projects.
Publisher: Environment Agency
Publication Date: 2002
Publication Place: Solihull
Subject Keywords: ModellingGroundwaterUrban areasWater qualityModelsCatchment basinsRunoff
Extent: 50; + appendices
Total file downloads: 312

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