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Guernsey Water

Guernsey had a population of approximately 65,000 and Guernsey Water is the island’s only water company, overseeing the collection, storage, treatment and distribution of potable water to over 25,000 customers.

The company has responsibility for 40 facilities including 4 water treatment works, 13 storage reservoirs, 2 service reservoir, 400kms of water main, a wastewater treatment centre; three sea outfalls and many kilometres of foul and surface water sewers.

Juas WTW (2019)

Guernsey is an island with a population of around 65,000. It has been served by three water treatment works; two (at Longue Hougue and St Saviour) utilising a membrane technology, and the third based on a more traditional rapid gravity filtration (RGF) process. The operation, control and reliability of the Longue Hougue plant had for […]

Belle Greve Wastewater Centre Phase IV (2016)

Belle Greve Outfalls Replacement is the fifth and final phase of the Belle Greve Wastewater Centre (BGWwC) strategy to provide suitable wastewater treatment and disposal capability for the island of Guernsey. The strategy commenced in 2007 and was completed in 2015 with the replacement of the long sea outfall (LSO) and short sea outfall (SSO). […]

Guernsey Airport Groundwater Improvement (2013)

New drainage system and pollution control ensure a greater level of protection for the island’s water supply

Longue Hougue WTW (2008)

Challenges for 15 Ml/d plant on Guernsey

St Saviours WTW (2004)

New treatment works to improve water supply