Anglian Water

Water Quality Risk Model

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Hydrosave were commissioned as consultants to establish a robust method for identifying and selecting mains which generate a high discolouration potential within the water supply network. These mains would then be considered for replacement, rehabilitation or other remedial activity. From this request Hydrosave developed a discolouration risk model ‘D-Risk’ which uses the outputs from hydraulic models and regulatory reporting data to evaluate and assess the specific risks associated with individual pipe lengths. This then facilitates the production of a spatial map detailing the level of risk within a DMA or WSZ and is used to assist in the development of a bespoke water quality management strategy.


Data availability and validity, GIS integration. Hydraulic model calibration.


  • Bespoke modelling tool
  • Capital programmes identified
  • Preventative maintenance plan developed
  • Reduced risk of customer complaints
  • Target network standards (TNS) compliance