environmental statement - Rotherham's Online Application for ...

eing affected by subsidence has been given under section 46 of the Coal
Mining Subsidence Act 1991.
FLOOD RISK ASSESSMENT
13.41 There is limited potential for considering the use of SUDS (Sustainable
Drainage Systems) within the site due to the low hydrological impact of the
proposed development. However, the proposed use of permeable
surfacing for the access tracks across the site will help to promote
infiltration and reduce peak runoff rates during lower magnitude storm
events. This approach is consistent with the principles of SUDS.
RESIDUAL EFFECTS
13.42 No significant residual effects should occur.
SUMMARY OF EFFECTS
13.43 The ground conditions within the study area are considered to be suitable
for wind farm development. Very few constraining factors relating to
ground conditions are present on the site and it is likely that the majority of
the study area would be suitable for construction of the turbines and
associated infrastructure.
13.44 The site is located in Flood Zone 1 and therefore at low risk of fluvial
flooding. The proposed development satisfies the requirements of the
Sequential Test with regard to development of essential infrastructure in
Flood Zone 1. The proposed development is not considered to be at risk
of flooding from groundwater, overland flow or local surface runoff. The
site is currently undeveloped and therefore not at risk of flooding from
sewers of stormwater drains. The proposed development will not result in
any net change in surface water runoff from the site. The proposed
development can be established in full compliance with “PPS25 -
Development and Flood Risk”.
13.45 No significant effects are predicted relating to effects on hydrology,
geology and ground conditions.
13.46 The Flood Risk Assessment (FRA) prepared for the proposed Penny Hill
Wind Farm is based on assessment of flood risk and surface water
management provision for six wind turbines sited at pre-determined
locations as communicated through a site layout plan. Each turbine
location may be subject to micro-siting to within 50m radius of the original
location. Moving the turbine locations by up to 50m from the previously
defined locations would have no impact on the assessment of flood risk or
the analysis of surface water management requirements at the site. All
turbine locations would remain in excess of 7m from the banks of any
surface watercourse and minor variations in the proposed routing of
access tracks would have no adverse effect on surface water runoff. It is
concluded that if micro-siting of the turbines to a maximum of 50m is
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Penny Hill Wind Farm
Environmental Statement