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

Well # Depth (m)
Maximum
Licensed Daily
Discharge
(m 3 d -1 )
GROUNDWATER FLOW MODELLING
Average Daily Discharge
from Monthly Returns
(m 3 d -1 )
1 75.13 1263 414
2 150 1562 746
3 61.3 450 189
4 84.3 466 234
5 45.72 32731 425
6,8,9,10 60-99 3155 575
7 91.44 546 175
Table 6.4 Borehole Abstraction Rates for the Witton area in the Tame Valley
6.8.3 Results and discussion
Particle tracking (Figure 6.15a) shows flow paths to be more complex and less linear, with a
greater range in travel times than flow prior to abstraction (Section 6.4). The majority of flow
across the flood plain is captured by the abstraction wells before discharge to the river may
occur. This would significantly reduce contaminant loading to the river that may occur from
the large number of industries located on the flood plain. At maximum abstraction rates
(Figure 6.15b), particles to the northeast of the river pass beneath the river as underflow to
Abstraction Well 10.
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