Sizewell B Emergency Response Centre public consultation

Here is the responses to my questions at the consultation. I have now posted their response to my response to their response to my questions here.


From EDF 2012-07-04

Dear Mr Lux

Re: Sizewell B Emergency Response Centre public consultation

Thank you for your additional questions on the Sizewell B Emergency Response Centre (ERC).

We have prepared a comprehensive flood risk assessment (FRA) as part of the planning application for the ERC. We have enclosed a copy of this document and hope that this addresses your question: ‘What is the conceivable extreme flooding from the sea? Please reference the study that states this.’

The FRA provides a high level assessment of the potential impacts from tidal and surface water for the 1:10,000 year event. It concludes that the ERC site would not be at significant risk from tidal flooding at the 1:10,000 year event, nor from fluvial flooding.

Section 3.3 of the FRA provides the predicted flood height data for a 1:10,000 year sea flood height, and section 4.4 provides the predicted flood data from rainfall. Section 3.3 also provides the relative height above sea level for Leiston.

You also asked us for a copy of a flood map for the 1 in 10,000 year flood and/or predicted flood height. We enclose the predicted tidal flooding plot for 1:10,000 as a separate PDF.

Your final question was regarding whether the vehicles stored in the ERC would have radiological protection. I can confirm that the vehicles will not have specific radiological protection, but will be fitted with standard safety features for example a cabin filtration system.

Once again thank you for taking the time to comment on our proposals for the Sizewell B Emergency Response Centre.

Yours sincerely
Jim Crawford
Station Director
EDF Energy

Attachments 5112116-12-005 FRA Report Rev 2, 1 in 10000 flood


From EDF 2012-06-19

Dear Mr Lux

Re: Sizewell B Emergency Response Centre public consultation

Thank you for commenting on the Sizewell B Emergency Response Centre (ERC) public consultation. EDF Energy undertook the pre-application consultation to proactively communicate with residents over the proposed facility. We intend to submit the planning application during June and this will be followed by a period of statutory public consultation where you can comment further on the ERC.

On your consultation feedback form you asked an additional question, please find the answer below:

Is the site protected against a 1 in 10,000 year flood?

The site selected is approximately 15m above sea level and outside the zone of conceivable extreme flooding from the sea – the site is outside the flood zone from an extreme 1 in 10,000 year tidal event.

On site drainage will aim to ensure water ingress to the building will not occur in the event of an extreme rainfall event that causes localised flooding.

Once again thank you for taking the time to comment on our proposals for the Sizewell B Emergency Response Centre.

Yours sincerely

Jim Crawford
Station Director
EDF Energy


From Me 2012-06-19

Dear Niki / Steve
This still does not answer my questions. What is the ‘conceivable
extreme flooding from the sea’ Please reference the study that states
this.

I asked some questions on the form at the consultation event at the
sports club and have not yet received a response.
I am not sure if I can remember all the points I raised but they
included the following.
1. A copy of a flood map for the 1 in 10,000 year flood and/or predicted
flood height (a reference to the relevant documents would be useful).
2. Will the vehicles have radiological protection?

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One Response to “Sizewell B Emergency Response Centre public consultation”

  • Wayne Jones says:

    Hi Pete , while preparing for the Hinkley Inquiry that never came , me a nd hugh richards of WANA discussed ocean level rise and it’s effects on nuclear siting . It had become obvious after the first tsunami- damage event at a Japanese nuclear power station , in which the sea water intake pipe had been damaged , that the nuclear industry were also preparing for ‘eventualities’ . At the time of our discussions in 2005 , a plan had been revealed for siting a nuclear reactor on a Scottish loch , invoving an elevated site with a long intake pipe reaching down . This was publicised in SCRAM magazine at the time …..we were talking about Trawsfynnydd experience being pertinent to future inland waterway siting …. Over the last few years I have been questioning climate experts on the relationship between ocean level rise and tidal range … no-one seems to be able to answer the question at the moment as to whether it is a linear relationship , as accepted by Professor John Sweeney , or more exponential ? I am concerned as to whether momentum in the water mass will be an over-riding factor to the inertia of the extra mass in effecting the tidal levels . I have put forward to the Welsh cosultation on HAW , that storm surges ( which have recently been accepted by the US as having an increased frequency) in combination with higher tidal ranges associated with ocean level rise , would be an issue that could require coastal site clearance altogether, let alone development that would see nuclear waste remaining on site for at least 270 years . I was recently speaking to the Marine Institute staff responsible for tidal measurement in Galway and was told that it would be at least 10 years to have enough data on which to make a reasonable assumption , considering the complexities involved . The nuclear industry are , as always , just as ahead as we are , and these considerations may have spurred the US to have taken up development of the modular reactor from the South Africans . It seems natural that the US would prefer water moderators to graphite , therefore knowledge of the sort of discharges seen at Sizewell B would be an advantage to local groups , and I have signalled this in my consultation paper , and have conducted a meeting for the Green group in Galway to alert them that the Shannon may be a future target for the US nuclear industry . Finally , I might add , that according to the local An Taisce rep here in W”est Kerry , who is a freind of mine , there is a local gentleman who has done considerable research on the Medieval sea inundation event in Somerset and has found that it was in fact a storm surge , not a tsunami generated by earth movement . Wayne Jones – ex WANA and Sizewell B objector (see evidence of Richard Sterne and cross-examinations )


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