Water risk assessment
We have a responsibility to ensure water delivered for domestic purposes is of wholesome quality without taste or odour. Where new water pipes are to be installed in land that is or may be affected by contamination, a risk assessment for water pipes should be provided to us to ensure that the correct type of pipe is selected. We recommend that this assessment is carried out as early as possible in your development planning process.
Most Local Authorities provide guidance to developers and homeowners about identifying land which is potentially affected by contamination for planning and building control purposes. Alternatively you may wish to seek professional advice from an organisation/consultant that can provide specialist guidance on potentially contaminated sites.
In January 2011, UK Water Industry Research (UKWIR) published "Guidance for the Selection of Water Supply Pipes to be used in Brownfield Sites" (Ref 10/WM/03/21; the 'UKWIR Guidance'). It aims to ensure that correct materials are selected for both water pipes and components to be used below ground in brownfield sites, to protect the quality of drinking water whilst taking into account the service life of the water distribution system.
We have adopted the UKWIR Guidance in principle and in addition have produced 'UUW supplementary guidance for the selection of water pipes in land potentially affected by contamination', which includes our Risk Assessment for Water Pipes, to clarify some of the areas in which it will operate.
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