Full text and Policy to reduce flood risk
Local Plan Policy EN6 requires that, for flood risk, ‘appropriate mitigation and management measures must be implemented’ and that a drainage strategy is required for all development.
NP POLICY 13 – FLOOD RISK No development shall come forward within Flood Zones 2 and 3 and Critical Drainage Areas, as identified in the National Planning Policy Framework Technical Guidance 2012 unless consistent with sequential testing and the exceptions listed in Policy EN6. Sustainable Drainage System(s) should be built and maintained to ensure that the flood risk to neighbouring properties is at least no worse than at present.
The Local Flood Authority must be satisfied that the overland flow of surface water will be controlled by bunds, swales and basins, particularly towards the south and east of the plan area. Cycleways that form part of the strategic network identified under NP Policy 8 shall be designed with the aim of them being useable at all times and in all weathers.
Significant parts of the plan area are at risk of fluvial and surface water flooding, causing significant concern about the impact of development. 54 houses in the village were flooded in 2007. The field surfaces are impermeable clay and in periods of heavy rain they become water logged.
South Marston Parish Council has worked with the Environment Agency to produce the official map of fluvial and surface water flooding in the plan area (see below). The surface water tends to seep overland towards the south and east of the area, making the fields towards the railway waterlogged and placing properties towards the southern end of Old Vicarage Lane at particular risk.
Appropriate measures should be taken to alleviate water flowing onto Old Vicarage Lane, particularly in the vicinity of Manor Cottages.