What you have told us
Transcription
What you have told us
11 Noise and Vibration We have carried out surveys to establish the existing noise levels at the locations shown below. Current industry standard methodology and models have been used to assess noise that will be generated during both construction and operation. Our assessments conclude that with appropriate mitigation all potential significant adverse effects can be avoided. Mitigation Q9 Potential mitigation measures that could be employed if required Construction Operation • Implementing a Construction Environmental Management Plan that the contractors must abide by. • Selecting appropriate plant and machinery. • Use of acoustic engineering design at the detailed design stage. • Refinement of building and plant layout where necessary. • Installing temporary noise barriers around the perimeter of the site (if the Severnside Energy • Careful selection of the type of plant and Recovery Centre which is being built currently does not building materials and cladding. provide adequate screening). • Use of features such as silencers, • Carefully scheduling works (including the day and time enclosures and/or building cladding. of day). Flood Risk What you have told us: What we have assessed: Flooding impacts should be considered. • Effects of the Proposed Development on flood risk from surface water, groundwater, sewer and tidal flooding; and South Gloucestershire Council and the Environment Agency also require us to investigate flood risk issues. • Effects of the Proposed Development on local water resources including the Red Rhine and Severn Estuary. A Flood Risk Assessment and Hydraulic Modelling Assessment have been undertaken to inform the assessment. It is predicted that during construction and operation adverse effects on flood risk and water resources will be small and insignificant. The Red Rhine The Red Rhine is a man made drainage channel which flows directly through the Proposed Development Site in an east to west direction towards the Severn Estuary. In certain scenarios the Red Rhine could overflow its banks flooding parts of the site. Severnside Distribution Land Ltd has started to divert and increase the capacity of the Red Rhine as part of its development works (see map below). This will help reduce the flood risk on our Proposed Development Site. These works are expected to be complete at the end of this year or early next. Mitigation measures: • parts of the main Proposed Development Site at risk of flooding will be raised to reduce the risk of flooding; Q9 • some plant and equipment may not be vulnerable to flood water, which may mean these parts of the site do not need to be raised; • a Flood Emergency Plan to protect people in the event of a flood will be developed; and • surface water will drain away slowly into the Red Rhine at the same rate as it would if the Proposed Development Site was a field. This will be done using an ‘attenuation feature’, likely to be a pond, to hold the water and control the flow to the Rhine.