Water Quality
At Jersey Water we aim to provide water which consistently meets all of the quality requirements laid down in law and regulation.
The laws and regulations that are in place to regulate the quality of the water that we supply are extensive and meet European Union Directives on water quality. The Water (Jersey) Law 1972 includes physical, chemical and bacteriological parameters and limits for water to be deemed wholesome.
In order for the Company to meet the necessary legal and regulatory standards on water quality it has in place strict policies and procedures to control the treatment process to ensure that the water supplied is of the highest standard.
The quality of drinking water in Jersey is continually monitored. Our laboratory carries out tests on approximately 7,000 samples taken throughout the year from water sources, treatment works, storage reservoirs and customers’ taps.
The tests are conducted at our water quality laboratory at Millbrook, in St Lawrence where the laboratory staff carry out physical, chemical and bacteriological analysis on the samples.
How Water Quality Is Regulated
The law requires that water supplied by the Company meets quality parameters laid down for “wholesomeness”. Read more…
The Water Treatment Process
The water that we supply goes through many stages of filtration and treatment before you are able to drink it. Read more…
Water Quality FAQ
We continually test our water to ensure that the high standard is maintained consistently throughout the year. Read more…
Stream Nitrate Map
The Stream Nitrate map shows the current levels of nitrates in the water of the streams used by Jersey Water to fill the reservoirs. Read more…
Action For Cleaner Water Group
Learn about the work of the Action for Cleaner Water Group (ACWG) whose aim is to safeguard the quality of Jersey’s water. Read more…