appendix a - National Grid
appendix a - National Grid
appendix a - National Grid
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CONTENTS<br />
1 EXECUTIVE SUMMARY..................................................................................................................1<br />
2 INTRODUCTION ..............................................................................................................................2<br />
3 CONTEXT AND SCOPE OF WORK................................................................................................3<br />
4 PLANNING CONTEXT.....................................................................................................................4<br />
4.1 Application of Planning Policy ..................................................................................................4<br />
4.2 PPS25 Flood zones and Land Use Vulnerability .....................................................................4<br />
4.3 Sequential Test Analysis ..........................................................................................................5<br />
4.4 Exception Test Analysis ...........................................................................................................5<br />
5 SITE DESCRIPTION ........................................................................................................................6<br />
5.1 Site Location and Description...................................................................................................6<br />
5.2 Hydrology .................................................................................................................................6<br />
5.3 Geology ....................................................................................................................................7<br />
5.4 Hydrogeology ...........................................................................................................................7<br />
6 DEVELOPMEMT PROPOSALS ......................................................................................................8<br />
7 SOURCES OF INFORMATION .......................................................................................................9<br />
7.1 Environment Agency Consultation ...........................................................................................9<br />
7.2 East of Ouse Polver and Nar Internal Drainage Board ..........................................................10<br />
7.3 Borough Council of King’s Lynn & West Norfolk....................................................................10<br />
7.4 King’s Lynn & West Norfolk Strategic Flood Risk Assessment..............................................10<br />
7.5 The Wash Shoreline Management Plan ................................................................................10<br />
7.6 Climate Change......................................................................................................................11<br />
8 SOURCES OF FLOOD RISK.........................................................................................................12<br />
8.1 Flooding from Rivers (Fluvial Flood Risk) ..............................................................................12<br />
8.2 Flooding from the Sea (Tidal Flood Risk)...............................................................................12<br />
8.3 Flooding from Land (Overland Flood Risk) ............................................................................13<br />
8.4 Flooding from Groundwater....................................................................................................13<br />
8.5 Flooding from Sewers ............................................................................................................13<br />
8.6 Flooding from Other Sources .................................................................................................13<br />
9 POTENTIAL IMPACTS ..................................................................................................................15<br />
9.1 Construction Activities ............................................................................................................15<br />
9.2 Proposal .................................................................................................................................15<br />
9.3 Post-Development Situation...................................................................................................17<br />
10 MITIGATION MEASURES .............................................................................................................18<br />
10.1 Context ...................................................................................................................................18<br />
10.2 Ground Levels ........................................................................................................................18<br />
10.3 Flood Resilient Construction ..................................................................................................18<br />
10.4 Flood Warnings ......................................................................................................................18<br />
10.5 Flood Plan ..............................................................................................................................19<br />
10.6 Safety ....................................................................................................................................19<br />
11 CONCLUSION................................................................................................................................20<br />
12 REFERENCES ...............................................................................................................................21<br />
TEP on behalf of <strong>National</strong> <strong>Grid</strong><br />
King’s Lynn 400kV Connection<br />
110488-FRA-R1(1)
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