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News Centre > Monday 03 June 2019

Guernsey Water achieves excellent Water Quality results

Water test

Guernsey Water has achieved its 2018 water quality targets and surpassed 2017's results.

The quality of water supplied was excellent with 99.91 per cent of 6,741 tests meeting all the UK and European Union standards. This shows an increase in compliance compared to the 2017 figure, which was slightly lower at 99.85%. 

Margaret McGuiness, Water Quality Risk Manager at Guernsey Water, said: "Drinking water is vital for public health so we strive to provide water that is safe and good to drink at all times.

"The achievement of such a high figure is a credit to our staff and their collective expertise, covering all aspects of the science and engineering of the public water supply."

Tests were taken from Guernsey Water's three operational treatment works, three service reservoirs, the water tower and customers' taps in two water supply zones; all of the three key performance targets were reached.

The public enjoyed an overall better quality of water in 2018 which is reflected in the decrease in the number of water quality enquires. There were a total of 95 enquiries from customers in 2018, compared to 147 in 2017. The number of enquiries regarding taste and odour were down on 2017 figures at 33 and the number of enquiries regarding appearance reached 52.

Mrs McGuinness said: "There are a small number of occasions where water quality does not meet the high standard we expect and our customers deserve and we will continue to investigate and strive to eliminate these to further improve the quality of Guernsey's public drinking water supplies.

"Safe, clean drinking water is indispensable to the wellbeing of our island.  This is ever more important in the face of significant challenges to drinking water supplies from the impacts of climate change on the quality and availability of water resources. It is essential that good quality drinking water, and the investment by Guernsey Water necessary to achieve it, is maintained in the future."

A full copy of the Water Quality Report for 2018 can be viewed pdf icon here [574kb]

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