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‘Unprecedented’ lack of trout in Burn of Lunklet following wind farm construction 

Credit:  Chris Cope | 26 January 2023 | shetnews.co.uk ~~

Concern has been raised after a new report suggested there may no longer be any trout in the Burn of Lunklet following the construction of the Viking Energy wind farm.

The Burn of Lunklet. Photo © Richard Webb (cc-by-sa/2.0)

The fish monitoring report also said remedial action was “urgently required” at a nearby wind farm borrow pit to curtail pollution in the burn, which has been “substantially impacted by very low pH and high concentrations of a number of metals”.

It said the lack of trout in an August survey was “unprecedented”, as previous data from as far back as 2008 showed fish being present.

The report said the trout appearing to be absent from the Burn of Lunklet – a Site of Special Scientific Interest (SSSI) – was likely to be a result of changes to water and habitat quality.

Last year mitigation work was undertaken after an increase in metals/minerals was recorded in water in the Burn of Lunklet during the Viking Energy wind farm construction. The Scottish Environment Protection Agency (SEPA) was informed.

The latest fish monitoring report said: “The data clearly indicate that by August 2022, when the fish surveys took place, conditions in Burn of Lunklet were unsuited to trout.

“This lack of trout is unprecedented as data show that trout were present at all sites previously sampled in this stream (Waterside Ecology 2008, 2020, 2021).

“A single trout parr was found downstream of the confluence of Burn of Marrofied Water.

“This latter result suggests that water quality remains very poor downstream of the confluence, despite the ameliorating effects of dilution via flows from Burn of Marrofield-water and Burn of Lambawater.”

Moraig Lyall, who chairs the council committee on the environment and transport, also raised the issue at a meeting about net zero in Lerwick on Wednesday night.

She questioned whether the “construction of wind farms is fundamentally at odds with our commitment to preserve and enhance biodiversity”.

Lyall added in response to the fish report: “What this report appears to show is that the fears that many people had about the impact of the the construction of VEWF [Viking Energy Wind Farm] on the ecology of the site have been proved to be well founded.

“It’s a travesty that a burn that has had a trout population for many years has now been rendered unsuitable for fish.

“Remedial action will have to be taken by the companies involved but sadly it’s likely unknown how effective that will be or how long it will take.

“Events like this should be kept firmly in mind by those still looking at granting permission for further developments. This gives concrete evidence of the impact that developing wind farms on peatland landscapes will have.”

Meanwhile a new water quality monitoring report has also been issued as part of planning conditions for the wind farm construction.

It confirms that borrow pit KPB02 continues to be the most likely source of low pH and “resultant mobilisation of metals”.

Sustainable Shetland chairman Frank Hay said the campaign group is “very disappointed” by the apparent impact on the trout population.

“Some of the trout in the Scallafield area may well be a unique sub-species and should have been protected,” he added.

“It remains to be seen what the long term effect on all the ecosystems in the area will be.”

Hay also said the latest water quality report on the Burn of Lunklet “comes as no surprise” to members of the group.

“This pollution issue was highlighted in many of our responses to the original planning application,” he said.

“It is especially disappointing that it should occur in the area of an SSSI.”

He said a proper survey of the main source of the pollution, the borrow pit entitled KPB02, should have highlighted that the rock there could cause issues.

“Consideration should be given to prosecuting Viking Energy for allowing this to happen – where are SEPA in all of this?”

Hay also raised concern about the aquaculture industry, “as run off from the wind farm site will eventually reach the sea”.

An update provided to a meeting of the Viking community liaison group this week said that contractor RJ McLeod has committed to “expedite the reinstatement” of the section of the borrow pit in question.

That work is expected to be completed by the end of March. The borrow pit as a whole is already around 80 per cent capped through its use as a peat storage area, but it will require formal reinstatement.

But a warning was made that the issue is not one that will be immediately solved, so “all remedial measures are not in place”. The team are now moving into a long-term mitigation strategy, group members were told.

“We remain actively committed to resolving this issue and to providing a permanent solution,” the update said.

It is expected that further “rock gaining” activity at the borrow pit will cease in the coming weeks, with one additional blast due in order to re-profile the section to make it suitable for reinstatement.

Viking Energy/SSE Renewables was contacted for a response but did not respond in time for publication.

Meanwhile more information about the convoys of wind farm turbine parts was given this week at the latest Viking Energy community liaison group meeting.

Convoys of parts are due to take place from Lerwick to the wind farm site in the Central Mainland between February and July, and more details about the timings can be found here.

Meeting chairman Andrew Archer asked about whether people may be able to overtake the convoys – suggesting there could be, for example, some drivers needing to catch ferries stuck in the traffic.

SSE Renewables’ wind turbine package manager Jonny Flowers said there may be times where police, who will be escorting the convoys, deem it safe for the lorries to pull over if there is a build up of traffic.

However he explained that in some instances it may be more efficient for the convoys just to head straight to site.

It is expected that the convoys will take around an hour to get from Lerwick to the wind farm site.

While the best case scenario is that the convoys will be completed before the start of July, there is an acceptance that due to outside factors like the conditions, it could slip into July itself.

Source:  Chris Cope | 26 January 2023 | shetnews.co.uk

This article is the work of the source indicated. Any opinions expressed in it are not necessarily those of National Wind Watch.

The copyright of this article resides with the author or publisher indicated. As part of its noncommercial educational effort to present the environmental, social, scientific, and economic issues of large-scale wind power development to a global audience seeking such information, National Wind Watch endeavors to observe “fair use” as provided for in section 107 of U.S. Copyright Law and similar “fair dealing” provisions of the copyright laws of other nations. Send requests to excerpt, general inquiries, and comments via e-mail.

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