• Soakaways

    Excavations, typically filled with gravel, designed to store water and allow it to infiltrate into underlying soils or aquifers.ﾠ Soakaways would typically receive point-source inflow (e.g.
    Related terms Natural Water Retention Measure
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  • Soil Conservation

    The management of land to minimise soil erosion to maintain soil and water resources, and provide sustainable benefits in the long term.
    Related terms Sponge action plan
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  • Sponge action plan

    Co-generated spatially explicit plan detailing actions to be implemented to develop the sponge landscape and containing sponge measures and sponge goals within the landscape at basin level.

    Related terms Sponge Landscape, Sponge Measure
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  • Sponge Strategy

    Action plan and roadmap that combines individual sponge measures into an overarching strategy, promoting a broader basin approach to soil and water management. 

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  • Sunk cost

    Those expenditures that, once committed, cannot be (easily) recovered. These costs arise because some activities require specialized assets that cannot be readily diverted to other uses.
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  • Supplementary measure

    "Supplementary" measures are those measures designed and implemented in addition to the basic measures, with the aim of achieving the objectives established pursuant to Article 4 of the WFD.
    Related terms Natural Water Retention Measure
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  • Sustainable Drainage Systems

    "Approaches to manage surface water that take account of water quantity (flooding), water quality (pollution)ﾠ and amenity issues are collectively referred to as Sustainable Drainage Systems (SuDS). SuDS mimic nature and
    Related terms Sustainable Urban Drainage Systems
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  • Sustainable Urban Drainage Systems

    Sustainable Urban Drainage Systems (or SUDS) are a sequence of water management practices, green infrastructures and measures designed to drain surface water in a manner that mimics the natural hydrologic cycle and will
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  • Swales

    Shallow, broad and vegetated channels designed to store and/or convey runoff. - Based on Stella definitions, adapted by NWRM project experts and validated by the European Commission
    Related terms Natural Water Retention Measure
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