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The impact of urban groundwater upon surface water - eTheses ...

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GROUNDWATER FLOW MODELLING<br />

more obliquely to the river through the flood plain, depending on the orientation <strong>of</strong> the river<br />

meanders.<br />

Recharge to the aquifer is complex and spatially variable. <strong>The</strong> primary recharge from<br />

precipitation is controlled by <strong>urban</strong> land cover and is supplemented by leakage from mains<br />

<strong>water</strong>, sewers and canals.<br />

Industrial abstraction wells are present in the area and have caused significant recharge <strong>of</strong><br />

<strong>surface</strong> <strong>water</strong> into the aquifer during the periods <strong>of</strong> major abstraction in the 1900s. <strong>The</strong><br />

reduction in the abstraction rates has led to <strong>ground<strong>water</strong></strong> rebound. Ground<strong>water</strong> levels are now<br />

essentially fully recovered in the Tame Valley. Small fluctuations (

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