View - North East Lincolnshire Council

BOC Immingham Dissolved Acetylene Project Environmental Statement: Vol. 2 Main Text
9.12 In addition, ongoing consultation with the Development Control section at the EA has been
undertaken to identify the EA’s key issues and requirements for the purpose of this FRA. More
latterly (July 2011) NELC forwarded the Draft FRA and associated documentation (which form
Annex 9) to the EA. The EA provided comments (see Table 5.3 for a summary of the comments
and for the original letter Appendix 5B) on the Draft FRA on the 4 th August 2011. The Final FRA
has been updated as a result of the EA’s comments and subsequent consultation 20, 21 .
Other Information Data Sources
9.13 The assessment is based on the data and information presented in the Project description for the
development (Chapter 3). Other data sources include:
� EA Flood Map;
� Admiralty Chart tide data;
� historical flooding records;
� coastal flood defence details;
� spot levels for the proposed development site;
� Lidar DTM data for the proposed development site and surrounding area;
� Northern Area Tidal Modelling Pilot Study Commission No AN645 (2007);
� Humber Flood Risk Management Strategy, Planning for the Rising Tides (2005); and
� North East Lincolnshire and North Lincolnshire SFRA (2007).
Assessment Methodology
9.14 This assessment of flood risk is primarily a desk-top study collating information on the current
flood risk and the existing drainage systems for the proposed development site. The results from
this work have been used to inform the baseline and the assessment of impacts associated with
the proposed.
9.15 A FRA has been undertaken in accordance with PPS 25 and this is included as Appendix 9A. The
objectives for the FRA of the proposed development site are to establish:
� the impacts of flooding on the development;
� the impacts of the development on flood risk elsewhere; and
� whether appropriate mitigation measures have been incorporated into the design of the
development to minimise risks to people and property on the site and elsewhere.
9.16 The assessment covers the potential risk of flooding from the prime sources i.e. the Humber
Estuary (tidal) and Middle Drain (fluvial) and from other possible sources such as groundwater,
rainwater (pluvial) and sewers.
Assessment Criteria
9.17 There is no standard methodology for assessing the magnitude of impacts of development on the
water environment. A methodology for assessing the significance of any impacts identified has,
therefore, been developed in the context of the Water Act (2003), the Land Drainage Act (1991)
and the Flood and Water Management Act (2010).
9.18 The significance of the potential impacts of the development on flood risk have been categorised
using the criteria outlined in Table 9.1.
5100935.404 Environmental Statement August 2011 130