Chapter 9: Road drainage and the water environment

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M1 JUNCTION 19 IMPROVEMENT ENVIRONMENTAL STATEMENT VOLUME 2 CHAPTER 9 – ROAD DRAINAGE AND THE WATER ENVIRONMENT 42 Groundwater Vulnerability of Leicestershire, Sheet 23, scale 1:100000, Environment Agency, 1996 43 Groundwater Vulnerability of Northern Cotswolds, Sheet 30, scale 1:100000, Environment Agency, 1996 44 M1 Junction 19 Improvement, Contractor’s Proposals for Drainage, November 2009, prepared by Skanska & Jacobs for the Highway Agency 45 Flood Risk Assessment: Final Report, July 2005 (updated October 2005), JBA Consulting 46 Control of pollution from highway drainage discharges, CIRIA report 142, 1994. 47 Junction 19 M1 Addendum to Flood Risk Assessment, JBA Consulting, May 2007. 48 M1 Junction 19 Improvement Flood Risk Assessment, Jacobs, 2009 49 Catthorpe Viaduct Replacement Environmental Assessment, Highways Agency. January 2010. B0531000_ID_70-EIA Vol 2 Chap 9 Road Drainage and the Water Environment Final Rev 4.doc Page 50
M1 JUNCTION 19 IMPROVEMENT ENVIRONMENTAL STATEMENT VOLUME 2 CHAPTER 9 – ROAD DRAINAGE AND THE WATER ENVIRONMENT FIGURES Figure 9.1: Existing Hydrological Features Figure 9.2: Existing Drainage Zones Figure 9.3: Proposed Drainage Zones Figure 9.4: Typical Pond Layout Figure 3.13: River Avon Flood Compensation and Otter Mitigation
Page 1:
M1 Junction 19 Improvement Environm
Page 4 and 5:
M1 JUNCTION 19 IMPROVEMENT ENVIRONM
Page 6 and 7: M1 JUNCTION 19 IMPROVEMENT ENVIRONM
Page 71 and 72: Appendix A - Pollution and Spillage
Page 73: Method D - Assessment of Pollution
Page 78 and 79: Groundwater: Hydrocarbons Hydrogeol
Page 83 and 84: Non Technical Summary Skanska Const
Page 85 and 86: Contents 1 Introduction 1 1.1 Overv
Page 87 and 88: 1 Introduction 1.1 Overview Jacobs
Page 89 and 90: 2 Policy Review 2.1 Planning Contex
Page 91 and 92: When the both the ‘Flood Zone’
Page 93 and 94: 3 Flood Risk to the Proposed Develo
Page 95 and 96: 3.2 Fluvial Flooding - Ordinary Wat
Page 97 and 98: Major earthworks affecting surface
Page 99 and 100: 3.7 Flooding from Infrastructure Fa
Page 101 and 102: 3.9 Summary of Risks to Site Table
Page 103 and 104: 4 Impacts of the Proposed Developme
Page 105 and 106: 4.6 Summary of Flood Impacts from D
Page 107 and 108:
5 Proposed Mitigation Measures 5.1
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The extents of this problem are cur
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5.7 Summary of Recommended Mitigati
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6 Residual Risks The level of flood
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7 PPS25 Sequential and Exception Te
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8 Conclusion The M1 Junction 19 Imp
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Appendix A Existing Layout, Environ
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Appendix B Contractor’s Proposals
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Appendix C Hydrogeological Assessme
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Memorandum Fairbairn House, Ashton
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Memorandum (Continued) Page 3 of 6
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Memorandum (Continued) Page 5 of 6
Page 141 and 142:
Appendix D Volume Distribution for
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Floodplain compensation area - elev
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Depth Bands (m) TOTAL (m³) Area Re
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Chapter 9: Road drainage and the water environment

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