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News Centre > Monday 07 October 2019

Improvements to water quality highlighted in 2018 Annual Report

Safe and Good to Drink

A high quality of drinking water has been maintained in Guernsey, with Guernsey Water's annual report showing an increase in overall drinking water compliance and a reduction in water quality related enquiries.

The improvements follow the continued development of the utilities disinfection strategy and the collective expertise of staff, resulting in 99.91% of 6,741 tests meeting all UK and European standards, compared to 99.85% in 2017.

Steve Langlois, Guernsey Water's General Manager said "One of the main achievements within our ongoing disinfection strategy was the installation of ultra-violet disinfection at our Juas water treatment works, which has reduced the amount of disinfection by-products that are produced during treatment."

The utility advised that on the small number of occasions where samples fell short of standards, potential causes were thoroughly investigated and actions taken to reduce the risk of repeat occurrences.

"As well as working on our disinfection strategy throughout 2018, we also carried out changes that resulted in a reduction to the amount of time water spends within our network. The reduction in customers contacting us regarding water quality in 2018 is also a great sign that our hard work has been having a positive effect."

As part of Guernsey Water's safe and good to drink outcome, the utility also monitors raw water sources for pollutants and works closely with the Office of Environmental Health and Pollution Regulation with regards to catchment management and protection in order to ensure water quality is not compromised for its customers.

Guernsey Water's full annual report can be viewed here

Further information on the Island's water quality can be found here

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