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Monday to Friday, 8am to 6pm (emergencies only at other times)
Help us to shape the future
About 80% of the water we supply originates from groundwater sources in Wiltshire and Dorset. The remaining 20% comes from surface water reservoirs which are filled by rainfall and runoff from the catchment.
The water we provide has to meet
drinking water standards which state specific limits on a number of pollutants including nitrates and pesticides.
While rain falling on the catchments is clean, the quality of the water abstracted from our sources is influenced by land practices in the catchment such as the use of nutrients and pesticides. These chemicals are mostly, but not always, derived from agriculture.
The traditional way of dealing with these impurities is to build large treatment works but these are expensive to construct and operate and do not benefit either the environment or customers.
Since 2005 we have chosen to use catchment management because it:
Catchment management involves us working with local farmers in the catchment areas of public water supply boreholes and reservoirs.
The methods we use include data sharing, advice, practical help and compensation, where appropriate.
Between 2015 and 2020 the catchment team will cover 20 at risk catchments across our region including:
In addition, our Streamclean team works in urban areas to reduce environmental pollution by tracing and rectifying
As a result of this work we've not had to install treatment at any of the sites where we engage in catchment management – nor do we have any plans to do so.
We are now developing our work in other areas including a major new project to offset
nitrate entering Poole Harbour from Dorchester sewage treatment works.