Pumping wastewater
By reducing or attenuating surface water runoff, SuDS generally lead to lower volumes of water in combined drainage/sewer systems, and therefore reduce flows to sewage treatment works (see the benefits pathway below). This reduction applies equality in surface water drainage. In pumped networks this results in savings from reduced pumping, primarily in terms of energy use, but also potentially in terms of reduced depreciation and maintenance of the required infrastructure.
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