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urban drainage (Urban Water Cycle (Uptake, Purification, Intake, Transport…

- - - - Integrate with public spaces
      - Manage rainfall at source
      - Mimic natural drainage
      - Design for water scarcity
      - Enhance biodiversity
      - Link to wider landscape
      - Design to be maintainable
      - Have regard to historic environment
      - Show attention to detail
      - Minimise risk to public
    - - Reduce damage from flooding
      - Improve water quality
      - Protect and improve the environment
      - Protect health and safety
      - Ensure stability and durability of drainage
      - 4 key criteria
        
        Quantity
        
        Amenity
        
        Quality
        
        Biodiversity
    - - Manage run off volumes and flow rates, reducing impact of urbanisation on flooding
      - Protect or enhance water quality
      - Are sympathetic to environment setting and needs of local community
      - Encourage natural groundwater recharge
      - Provide habitat for wildlife alongside urban watercourses