Scotland river managers say a fish-killing spill near the River Spey could take years to reverse

A chemical spill at Knockando Burn, a tributary of the River Spey in Moray, killed fish and other wildlife along a 2-kilometer stretch, and local river managers warned the damage could take years to reverse. Drink giant Diageo later apologized over the May incident, in which the substance involved was believed to be caustic soda.

Here's what to know

The spill happened in Moray, near a cluster of distilleries along the Spey. A chemical suspected of being caustic soda got into Knockando Burn and then into part of the wider river system, reportedly killing many fish and other wildlife, according to PA Media (via STV News).

The surrounding area is known for wild salmon fishing, which runs from February to the end of September.

Calling the event a "deeply regrettable incident," Diageo said it was working with the Scottish Environment Protection Agency (SEPA). The company added that it was "sincerely sorry for the damage caused to the local environment and the impact on river users and the wider community."

More background

Duncan Ferguson, director of the Spey Fishery Board, said the pollution had "destroyed" roughly 1.2 miles (2km) of Knockando Burn and warned that recovery for the tributary could take years.

Ferguson told PA Media that, over 36 years working on the river, he regarded it as one of the largest incidents he had seen.

"It's a tragic event," he said. "It's a really bad outcome and it didn't have to happen."

What's being done?

With the case still active, SEPA said it would not discuss evidence gathered during its ongoing investigation. The regulator added that it is still evaluating the environmental effects and working with others "to ensure any appropriate action is taken to protect and restore the water environment."

The drink company said it has "updated controls in place" and remains fully engaged with SEPA, while also discussing a "long-term plan to support regeneration and restoration in the area."

Once the investigation finishes, SEPA said it will weigh possible enforcement steps under its policies, guidance and relevant legislation. If the agency concludes a potential offense is serious enough for prosecution, it can send a report to the Crown Office and Procurator Fiscal Service.

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