Chapter 9: Road drainage and the water environment

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Groundwater: Hydrocarbons Hydrogeology Lower Lias Macro-invertebrate Made Ground: Mitigation: Mutagenic Organohalogen Organophosphorus Organotin PH Piling: Planning Policy Guidance (PPG): Potable water Ramsar River Terrace Run-off: SAC Salmonid Sediment: Siltation: Source Protection Zones (SPZ): SPA Surface Water: Suspended Solids Teratogenic Turbidity nature and strength of soils below the ground. Water held underground within porous rocks. Organic compounds made of hydrogen and carbon, often found in fuels. The study of groundwater. A period of geological time towards the end of the early Jurassic, ie. from about 195 – 180 million years ago. An animal without a backbone large enough to be seen without magnification. Land which has been infilled or built up above original ground level. Measures, including any process, activity or design to avoid, reduce, remedy or compensate for adverse effects of a development project. Causing genetic mutation. Organic compounds including fluorine, chlorine, bromine or iodine. Common natural compound, but also the basis of many insecticides and herbicides Highly toxic organic compounds combined with tin, used as anti-foulant paint for boats A measure of relative acidity or alkalinity The act of driving ‘piles’ (supports) into the ground. A series of government documents that provide guidance, principally to Local Planning Authorities, about various aspects of government policy in relation to the planning system. Water suitable for human consumption. European Designated wildlife site A flat platform of land created alongside a river. Water which is not absorbed by the soil and flows to lower ground, eventually draining into a stream, river, or other body of water. Special Area of Conservation. European designated wildlife site. Fish species such as salmon and trout Particulate matter that can be carried by water flow and eventually deposited as a layer of solid particles on the bed or bottom of a body of water. Sedimentation is the deposition by settling of a suspended material. The deposition or accumulation on the bottom of a body of water of fine or intermediate sized mineral particles known as ‘silt’. A defined zone surrounding a groundwater abstraction point (e.g. a well or a spring), within which certain activities are restricted to prevent contamination of the groundwater. Special Protection Area. European designated wildlife site. Watercourses, ponds or lakes that run or lie on the surface of the land Small solid particles which remain in suspension in water. Causing birth or embryo defects Muddiness created by stirring up sediment.
M1 JUNCTION 19 IMPROVEMENT ENVIRONMENTAL STATEMENT VOLUME 2 CHAPTER 9 – ROAD DRAINAGE AND THE WATER ENVIRONMENT Appendix C – Flood Risk Assessment Please note that Appendix B to the Flood Risk Assessment The Contractor’s Proposals for Drainage, November 2009, Skanska Jacobs 44 Is not included
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M1 Junction 19 Improvement Environm
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M1 JUNCTION 19 IMPROVEMENT ENVIRONM
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Page 28 and 29: M1 JUNCTION 19 IMPROVEMENT ENVIRONM
Page 71 and 72: Appendix A - Pollution and Spillage
Page 73: Method D - Assessment of Pollution
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
Page 109 and 110: The extents of this problem are cur
Page 111 and 112: 5.7 Summary of Recommended Mitigati
Page 113 and 114: 6 Residual Risks The level of flood
Page 115 and 116: 7 PPS25 Sequential and Exception Te
Page 117 and 118: 8 Conclusion The M1 Junction 19 Imp
Page 119 and 120: Appendix A Existing Layout, Environ
Page 127 and 128: 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
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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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