Company History

Jersey Water has produced a number of fact sheets that summarise our key programs, processes and activities.

Desalination plant

The Reverse Osmosis (RO) desalination plant plays a vital role in providing an alternative water source for the Island and when necessary augmenting natural water resources which are predominantly surface derived. Read more…

Ground water resources

The Company has ground water sources at 5 boreholes, which range in depth from 13 to 17 metres, extracting water from the sand aquifer that lies underneath the sand dunes along the coastline. Read more…

Stream abstraction points

As well as collecting water in the Island’s main reservoirs, the Company also collects water from many of the Island’s streams which are remote from the reservoir catchment areas.   Read more…

Treated water service reservoirs

The treated water storage reservoirs hold sufficient water so as to enable the system to meet peak flow levels and spread the demand placed on the treatment works over the whole day. Read more…

Raw water storage reservoirs

The raw water storage reservoirs store untreated water collected from streams and pumped from the raw water abstraction points and the desalination plant. Read more…

Raw water storage tanks

The Company uses two raw water storage tanks located in Trinity and in St Lawrence to assist in controlling the flow of untreated water between the reservoirs and from the reservoirs to the treatment works. Read more…

Water quality laboratory

The  St Lawrence laboratory is where the majority of the Company’s physical, bacteriological and chemical analysis takes place using the latest equipment and testing processes.     Read more…

Water treatment works

All of the water supplied by the company is treated at one of it’s two water treatment works located at Handois and Augrès. Read more…

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