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e-Petition: Suspend Marine Licence 12/45/ML to dump radioactive marine sediments from the Hinkley Point nuclear site into Wales coastal waters off Cardiff

open quote / dyfyniad agored

We call on the National Assembly for Wales to urge the Welsh Government to direct Natural Resources Wales to suspend the licence it has granted to NNB Genco, which permits up to 300,000 tonnes of radioactively contaminated material, dredged from the seabed at the Hinkley Point Nuclear power station site, to be dumped into Welsh inshore waters.


We further request that the suspension of the licence is used to ensure that a full Environmental Impact Assessment, complete radiological analysis and core sampling are carried out under the auspices of Natural Resources Wales, and that a Public Inquiry, a full hearing of independent evidence and a Public Consultation take place before any dump of the Hinkley sediments is permitted.

Marine Licence 12/45/ML, granted by the Welsh Government, permits the disposal of up to 300,000 tonnes of radioactively contaminated marine sediment, dredged from the seabed at the Hinkley Point nuclear site, into the Cardiff Grounds marine dump site close to the South Wales coast. This will allow work to begin on the 2 new Hinkley C nuclear reactor pipelines.


The sediments to be dredged are adjacent to the waste pipes used for the discharges from Hinkley’s 4 existing reactors. Analysis, commissioned by UK Government agencies, shows that the sediment is contaminated by radioactive waste discharged to sea over 50+ years of operations at the Hinkley site. Calculations derived from the official data indicate that the proposed dredge sediments may hold at least 7 billion Bqs of aggregated radioactivity, yet reports state that doses to humans would be very low.


Hinkley’s radioactive discharges to sea contain over 50 radio-nuclides, but the analysis has only investigated 3 of them. Thus, the actual aggregated radioactivity content of the sediments will be much higher than indicated by the available analysis.  The available evidence also implies that only surface samples (0 to 5cms deep) of the sediment have been analysed, despite the fact that core sample research from elsewhere in the Irish Sea demonstrates that, at depths below 5cms, radioactivity concentrations may be up to 5 times higher.


While sedimentary radioactive material is initially likely to disperse, studies prove that it later re-concentrates in coastal and estuarine mudflats and saltmarshes, and is also available for sea-to-land transfer during onshore winds and coastal flooding. We note the absence of research on the fate of such radioactivity in South Wales inshore waters.  In this context we are concerned that the environmental and human health (dose) risks from the proposed disposal have not been adequately researched and that any conclusions based on the current incomplete data, are unreliable.

close quote / dyfyniad agos


Petition details

Petition Status: Closed by the Committee
Petition Start Date: 26/09/2017
Open until midday on: 31/10/2017


Petition Signatories

Total signatures: 7033

Name Constituency or Area of residence Date
Roger Wells Stourbridge 31/10/2017
Sian Dyer Dwyrain Caerfyrddin a Dinefwr 31/10/2017
Paul Heaven Llanelli 30/10/2017
Tereska SHEPHERD Dwyfor Meirionnydd 30/10/2017
Dylan Nicholas Llanelli 30/10/2017
Michael Davies Carmarthen East and Dinefwr 30/10/2017
Mrs Alexander Brennan Ogmore 30/10/2017
Darren Gentle Vale of Glamorgan 30/10/2017
Helen Gentle The Vale of Glamorgan 30/10/2017
Andrew Bushell Cardiff North 30/10/2017
Anonymous Cardiff West 30/10/2017
Stephanie Battershill Brecon and Radnorshire 30/10/2017
Sioned Birchall Cardiff West 30/10/2017
Sylvia Williams Gower 30/10/2017
Dean Hawkins Cardiff South and Penarth 30/10/2017
Anonymous Cardiff South and Penarth 30/10/2017
jeffrey masurier Gower 29/10/2017
Dewi Kalsi Gower 29/10/2017
Owain Rosser Cardiff North 29/10/2017
Steve Rosser Aberavon 29/10/2017
Marc Williams Cardiff Central 29/10/2017
Andrew Bennett somerset 29/10/2017
Adrian Dyer Carmarthen East and Dinefwr 29/10/2017
hywel gwynallt evans Vale of Glamorgan 29/10/2017
Lindsey Applegate Carmarthen East and Dinefwr 29/10/2017

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