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M25 Motorway, UK

Green solutions water

A large proportion of the water used on site is for dust suppression or road sweeping.  A large proportion of this is collected from highway runoff / site runoff rather than using mains / potable water.  Where mains water is used washdown hydrants are used in preference to potable water hydrants. We need to improve our recording of grey / recycled water use to compare with the potable water which we have good records of.