Sea water in the Elizabeth marina may turn green today, as part of an investigation into alleged pollution.
Environment Protection officers are carrying out dye tracing, to see if there's a pathway between the marina and the Waterfront construction site.
Director of Environment Protection, Tim De Feu, says a change of colour today shouldn't be of concern.
"The green dye used in the process of dye tracing may be visible in sea water in the marina today after this morning’s high tide. The discoloration should be short lived, it is non-toxic to the environment and won’t stick to boats moored in the marina.
"The public shouldn’t be alarmed if they notice any changes in the water colour during this testing."
It was revealed in the States Assembly last month that there's been an average of nearly one water pollution an incident in Jersey so far this year.
Environment Minister Deputy John Young said at the time that measures should have been in place to prevent an incident such as this, but they definitely are now.
Jèrriais film set to hit the screens at 13th Parish Film Festival
Muratti Tickets on now on sale
Jersey Cricket men's team play at Lord's
Seabird protection outweighs visual impact after predator fence appeal
Guernsey rejects inter-island ferry proposal
The newly revealed faces and details of Jersey's past
Up to £150 for families to help with school essentials
No more funding from Guernsey for Jersey company that delivers its newspapers
