Why you don’t need to worry about this black slick in Felixstowe harbour – port explains

The brown substance appears to be flowing upstream towards the Orwell River Picture: ARCHANT

The brown substance appears to be flowing upstream towards the Orwell River Picture: ARCHANT - Credit: ARCHANT

Pictures have emerged of a murky substance, confirmed to be a “molasses wash”, flowing from the Felixstowe quayside towards the Orwell River.

The substance is most concertrated by the quayside, and disperses as it flows down the harbour Pictu

The substance is most concertrated by the quayside, and disperses as it flows down the harbour Picture: ARCHANT - Credit: Archant

The pictures, taken from a light aircraft at around midday on Saturday, September 15, show a murky substance spreading over a wide area against the clear waters of the harbour.

It appears most concentrated close to the quayside, and spreads upstream towards the Orwell River.

An anonymous source said: “[The pictures] seem to show pollution / discharge. It might not be that at all. I don’t know.”

However a spokesman for the Port of Felixstowe said that the brown slick is, in fact, an entirely natural product – and nothing to worry about.

The pictures show what appears to be a murky substance flowing towards the Orwell River Picture: ARC

The pictures show what appears to be a murky substance flowing towards the Orwell River Picture: ARCHANT - Credit: Archant


You may also want to watch:


It has washed upstream from a yeast factory on Dock Road, and consists of molasses – like a black treacle.

The spokesman said: “We can confirm that the plume on the photograph is a legally permitted discharge from Lallemand, the yeast factory situated at the entrance to the docks.

Most Read

“During tank cleansing works, the washwater is discharged to the river. The discharge has been operational for many years and is controlled by the Environment Agency.

“The molasses wash is a natural product and a food source for the local ecosystem.”

• Have you seen the substance, or taken any pictures? Get in touch by emailing amy.gibbons@archant.co.uk

Become a Supporter

This newspaper has been a central part of community life for many years. Our industry faces testing times, which is why we're asking for your support. Every contribution will help us continue to produce local journalism that makes a measurable difference to our community.

Become a Supporter