Water Cycle Study - March 2010 - North West Leicestershire District ...

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Creating the environment for business 6.4 Summary of Future Capacity and Opportunities 76 7. Climate Change 79 7.1 Background 79 7.2 Climate Change Modelling and UKCP09 79 7.3 Climate Change and the Study Area 80 7.4 Assessment of Environmental Capacity and Water Infrastructure Provision 82 7.5 Implications of Climate Change and Mitigation 85 8. Future Recommendations and Guidance 87 8.1 Water Quality and Wastewater Treatment 87 8.2 Water Resources and Supply 88 8.3 Flooding and Drainage 89 8.4 Infrastructure and Policy Strategy 91 9. References 93 Table 2.1 Four Development Options for North West Leicestershire to meet Regional Growth Targets between 2006 and 2026 (Core Strategy Further Consultation November 2008) 8 Table 2.2 Projected Growth 2010 - 2026 for Water Cycle Study, taking Account of Completions 8 Table 3.1 Primary Water Related Legislation 13 Table 4.1 Summary of Flooding Sources (SFRA Final Report, Atkins, May 2008) 20 Table 4.2 Overall Water Framework Directive Statistics for Catchments in Study Area 23 Table 4.3 Assumed Compliance with WFD Targets, Based on GQA Measurements 24 Table 4.4 Summary of CAMS Resource Assessments in the East Midlands Zone 34 Table 4.5 Comparison between Consented and Measured Effluent Flows 41 Table 4.6 Capacity of Works Based on Current Quality Performance 42 Table 5.1 Water Quality Constraints 49 Table 5.2 Water Supply Constraints 52 Table 5.3 Flooding Constraints 53 Table 5.4 Assessment of Constraints and Main Wastewater Treatment Works 55 Table 5.5 Severn Trent Water’s Assessment of Sewerage Capacity for Potential Strategic Sites 58 Table 6.1 Summary of Water Efficiency Scenarios Used in Sensitivity Analysis 64 Table 6.2 Demand from New Development 67 Table 6.3 Examples of SuDS Techniques 75 Table 7.1 Impact of Climate Change on Deployable Output 83 Figure 2.1 Planning Context of Water Cycle Studies 9 Figure 3.1 Traditional View of the Water Cycle without Artificial Influence 11 Figure 3.2 Schematic of the Urban Water Cycle Based on Current Practice 12 Figure 4.1 Hydrological Context of Study Area 19 Figure 4.2 The Components of Overall Status for the Water Framework Directive 23 Figure 4.3 Environment Agency WFD Risk Assessment (2008) 26 Figure 4.4 Environment Agency’s Routine Sample Data from Sites at Snarestone, Measham, Stretton Bridge and Croxall 28 Figure 4.5 Designated Sites in the Study Area 29 Figure 4.6 Water Resource Zones and Principal Source Locations 32 Figure 4.7 Baseline Supply Demand Balance 37 Figure 4.8 Final Planning Solution Supply Demand Balance 38 Doc Reg No. 26271c006i2 Page ix © Entec UK Limited 19 March 2010
Creating the environment for business Figure 4.9 Wastewater Treatment Works and their Indicative Catchments 40 Figure 5.1 Water Resource Constraints in the East Midlands Zone 51 Figure 5.2 Wastewater Treatment Works Constraints 57 Figure 5.3 Sewerage Constraints 61 Figure 6.1 Summary of Alternative Growth Rate and Demand Scenario Forecasts 65 Figure 6.2 Predicted Dry Weather Flow over Growth Period (to 2026) at the Six Growth Areas (not including headroom) 71 Figure 6.3 Forecast Wastewater Flows for South Derbyshire Works, if Effluent from new Homes in Ashby and Measham are Diverted (2010 to 2015) 73 Figure 7.1 Change in Annual Average Daily Temperature for the 2050’s under the Medium Emissions Scenario (UKCP09) 81 Figure 7.2 Change in Summer Mean Precipitation for the 2050’s under the Medium Emissions Scenario (UKCP09) 81 Figure 7.3 Change in Winter Mean Precipitation for the 2050’s under the Medium Emissions Scenario (UKCP09) 82 Figure 8.1 Proposed Strategy for Infrastructure and Policy 92 Appendix A Appendix B Appendix C Appendix D Appendix E Appendix F Appendix G Appendix H Appendix I Appendix J Water Resources Catchment Abstraction Management Strategies Planned Growth in Adjacent Areas Detail of Designated Sites River Mease Additional Information Humber River Basin Management Plan Actions Tables D.2 and D.3 from PPS25 Annex D Severn Trent Water’s Assessment of Sewerage and Wastewater Treatment Developer Guidance Checklist Climate Change Doc Reg No. 26271c006i2 Page x © Entec UK Limited 19 March 2010
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Water Cycle Study - March 2010 - North West Leicestershire District ...

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