Water City of Lincoln, West Lindsey District Council June 2010 & North Kesteven District Council Central Lincolnshire Water Cycle Study - Detailed Strategy Prepared by: Christian Lomax Checked by: Clive Mason Principal Consultant Technical Director Approved by: Andy Yarde Regional Director Central Lincolnshire Water Cycle Study - Detailed Strategy Rev No Comments Checked by Approved Date by 3 Final Report CM AY June 10 2 Final Draft Report CM AY May 10 1 Second draft for comment CM AY Apr 10 0 Draft for comment RL AY Feb 10 5th Floor, 2 City Walk, Leeds, LS11 9AR Telephone: 0113 391 6800 Website: http://www.aecom.com Job No 60095992 Reference Rev3 Date Created June 2010 This document is confidential and the copyright of AECOM Limited. Any unauthorised reproduction or usage by any person other than the addressee is strictly prohibited. f:\projects\rivers & coastal - lincoln water cycle study phase 2\04_reports\03_draft detailed strategy\lwcs detailed strategy final report.doc AECOM Central Lincolnshire Water Cycle Study - Detailed Strategy 0 Table of Contents Non-Technical Summary ................................................................................................................................................................ 1 Introduction ......................................................................................................................................................................... 1 Future Growth & Development ............................................................................................................................................ 1 Review of the Water Cycle .................................................................................................................................................. 2 Lincoln Policy Area .............................................................................................................................................................. 2 West Lindsey ....................................................................................................................................................................... 4 North Kesteven ................................................................................................................................................................... 5 Conclusions ......................................................................................................................................................................... 6 Strategy ............................................................................................................................................................................... 7 1 Introduction ..................................................................................................................................................................... 11 1.1 Background ......................................................................................................................................................... 11 1.2 Stakeholders ........................................................................................................................................................ 12 1.3 Detailed WCS ...................................................................................................................................................... 13 1.4 Report Format ..................................................................................................................................................... 14 1.5 Strategy Development ......................................................................................................................................... 15 2 Development Planning.................................................................................................................................................... 17 2.1 Future Growth ...................................................................................................................................................... 17 2.2 Completions and Commitments ........................................................................................................................... 18 2.3 Planning Policy .................................................................................................................................................... 19 2.4 Identifying Areas for Growth ................................................................................................................................ 19 2.5 Levels of Growth .................................................................................................................................................. 21 2.6 Employment Land ................................................................................................................................................ 25 2.7 Potential for Change ............................................................................................................................................ 26 3 Water Resources & Supply ............................................................................................................................................ 29 3.1 Introduction .......................................................................................................................................................... 29 3.2 Water Resources & the Environment Agency ...................................................................................................... 29 3.3 Water Resources & Anglian Water Services ....................................................................................................... 30 3.4 Water Resources Status ...................................................................................................................................... 32 3.5 Water Supply ....................................................................................................................................................... 35 3.6 Conclusions ......................................................................................................................................................... 36 3.7 Additional Demand Management......................................................................................................................... 36 4 Foul Water Sewerage ...................................................................................................................................................... 39 4.1 Introduction .......................................................................................................................................................... 39 4.2 Sewerage Capacity in the LPA ............................................................................................................................ 39 4.3 Sewerage Capacity outside the LPA ................................................................................................................... 47 4.4 Combined Sewer Overflows ................................................................................................................................ 48 5 Sewage Treatment .......................................................................................................................................................... 51 5.1 Sewage Treatment in the LPA ............................................................................................................................. 51 5.2 Sewage Treatment outside the LPA .................................................................................................................... 55 5.3 Water Quality ....................................................................................................................................................... 56 5.4 Expansion of Canwick STW & Flood Risk ........................................................................................................... 58 6 Surface Water Drainage .................................................................................................................................................. 61 6.1 Introduction .......................................................................................................................................................... 61 6.2 Existing Situation ................................................................................................................................................. 61 6.3 The Lincoln Integrated Urban Drainage Pilot ....................................................................................................... 61 6.4 Surface Water Flooding ....................................................................................................................................... 63 6.5 Design Standards ................................................................................................................................................ 65 6.6 Surface Water Sewers & New Development ....................................................................................................... 65 6.7 Sustainable Drainage Systems ............................................................................................................................ 67 6.8 SUDS & Future Development .............................................................................................................................. 69 AECOM Central Lincolnshire Water Cycle Study - Detailed