By Tanya Jackson

Published: Tuesday, 09 November 2021 at 12:00 am


Fifteen months after a pollution incident on the Afon Llynfi, in Powys which killed an estimated 45,000 fish and wiped out much of the life in the river, Natural Resources Wales (NRW) has finally admitted that it has insufficient evidence to bring a prosecution.

The agency was called immediately after the pollution occurred and while fish were still gasping for oxygen, but due to staff shortages on the ground that day, water samples were not taken until the following day, 13 hours after the pollution happened. NRW has so far refused to reveal if this delay resulted in a loss of evidence that might have allowed a successful prosecution to be brought.

At the time of the announcement that no further action was to be taken, Ann Weedy, Operations Manager for NRW in mid-Wales said: “Our officers have been appalled by the damage caused to the River Llynfi by this incident and are very disappointed that we have not been able to bring those responsible to justice.

“The River Llynfi is a Site of Special Scientific Interest in a Special Area of Conservation. The fact that such a significant number of aquatic animals died in the incident shows just how rich the wildlife was in this small tributary river.

“We have exhausted every lead and done everything we can to be able to prove what happened, but with the deepest regret, this investigation has now ended.”

The Afon Llynfi is a small tributary of the Wye and runs through the county of Powys. The pollution incident on 31 July 2020 was the third such tragedy in five years: one was relatively minor but the second resulted in another big fish kill from which the river was just recovering.

Dark waters – our ongoing investigation into the death of the River Llynfi

Back in July, over 10,000 fish were killed in a major pollution incident on the Afon Llynfi in Powys. We investigate the impact on local wildlife and water quality in this special report.

Angler, river bailiff and Vice-Chairman of Gwent Angling Society Dave Collins spoke movingly to me for BBC Countryfile Magazine about the aftermath of this latest pollution.

“Seeing a river where every fish is dead is one thing,” he told us. “To be actually standing in the margins and seeing brook lampreys and bullheads still squirming and in the process of dying is something else. You are actually witnessing  death, not the consequences of it.”

On hearing that NRW are not taking any further action, Collins says: “I am absolutely gutted. To see all of the efforts that we put in between 2016 and 2020 and to see that NRW has failed to find anybody responsible for that environmental disaster is shocking.”

In a statement, Gwent Angling Society, who leases fishing rights on the Afon Llynfi, said: As was the case after the fish kill in 2016, Gwent Angling Society will continue to invest its time and resources in promoting the recovery of its fisheries, and wider ecosystem, on the lower river.

“However, we believe the prospect of another acute pollution on the lower Llynfi is not a matter of ‘if’, but simply a matter of ‘when’, and we have no confidence that NRW is able either to prevent pollution or to prosecute those responsible.”

Our comments on NRW’s announcement that the #llynfipollution investigation has ended without further action being taken pic.twitter.com/BQBqSDAUvj

— Gwent Angling Society (@AnglingGwent) November 2, 2021