Page 27 - Bromsgrove SuDS DESIGN & EVALUATION
P. 27
Local Geology as fluvio-glacial deposits, which can be found
particularly along the major rivers, such as in
Most of the north-west of Worcestershire the valleys of the Severn and Stour.
consists of Old Red Sandstone. Carboniferous
strata occur in the western parts of Wyre The following map aims to give an indication
Forest Area, and in the extreme north of of the local geology and therefore the
Bromsgrove, where they form a western likelihood that a site will be suitable for
continuation of the South Staffordshire infiltration SuDS. The actual suitability of a
Coalfield. These strata contain layers of site will need to be determined using site Local SuDS requirements
sandstone and shales, ironstone and coal specific investigations and permeability
deposits. The Permian and Triassic rocks of testing.
the following Upper Palaeozoic and Mesozoic
eras are generally softer, comprising
sandstones and marls and make up the Local SuDS specific requirements
greater part of central Worcestershire,
including the eastern parts of Wyre Forest Effective on-site management of surface
and most of Bromsgrove and Redditch. water can improve water quality, water
Overlying the ‘solid geology’ are Quaternary conservation, the replenishment of ground
deposits of ‘drift’ material. These include till / water supplies and reduce instances of
boulder clay deposited directly by glacial ice, flooding. The Bromsgrove District Council
in the north-east area of Bromsgrove as well therefore requires all development with
surface water drainage implications to
provide Sustainable Drainage Systems
(SuDS) for the management of surface water. 22
Where ground condition allows management
of surface water via infiltration is preferred.
Bromsgrove’s policies regarding flood risk
management, the use of SuDS and Green
Infrastructure flood risk are detailed in the
Council’s Local Plan. Documents that form
the evidence base for the Local Plan include
the Strategic Flood Risk Assessment (2012)
and the Water Cycle Study (2012) which
provide area specific information regarding
information on local flood risk management
and the use of appropriate Sustainable
Drainage (SuDS) techniques.
North Worcestershire Water Management
Ground Permeability Map.
Bromsgrove District Council SuDS D & E Guide © 2018 McCloy Consulting & Robert Bray Associates
