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Small leak from Trafalgar during refit

pg55555

Lantern Swinger
This was posted on the BBC new website :-


http://www.telegraph.co.uk/earth/en...aks-from-nuclear-submarine-HMS-Trafalgar.html


Radioactive water leaks from nuclear submarine HMS Trafalgar

A British nuclear submarine leaked hundreds of litres of radioactive waste into a river, it has emerged.

Last Updated: 1:04PM GMT 11 Nov 2008


Environment watchdogs are investigating the leak at Devonport, in Plymouth, from HMS Trafalgar in which 280 litres of contaminated water were spilled.

The Environment Agency threatened to prosecute the Ministry of Defence or Devonport Management Limited after a series of spills in 2005.

The water, which amounts to more than quarter of a ton, was being removed from the submarine's cooling system and pumped into an effluent tank on shore.

It contained low levels of the radioactive element tritium which were picked up as the water was used to cool the reactor on board the submarine.

The water drained into the River Tamar at Devonport because a hose leaked as the contaminated water was being transferred.

The water was due to be removed and either decontaminated or disposed of as low level nuclear waste.

The spill is the largest in 23 years but tests in the river have showed no signs of increased radiation and the Environment Agency says there is no risk to the public.

A nuclear expert criticised the Ministry of Defence for withholding details of the spill for four days after the accident early on Friday morning.

Nuclear consultant John Large said the leak represented a potential risk to workers at the dockyard and was a serious breach of safety procedures.

He said: "This is very serious because it means there has been a breakdown in nuclear safety protocols.

"The risk to the public is virtually zero but there was a risk to the workers who may have been exposed to this without being aware of it.

"They could have transferred it to other areas of the yard where nuclear safety controls are not in place on their shoes or clothing.

"Systems are in place to stop this sort of leak happening so the very fact that it did means that something has gone seriously wrong.

"There is an underlying problem of accountability and the Ministry of Defence have only described this incident a few days after it occurred."

Ian Avent from the Plymouth-based Campaign Against Nuclear Storage and Radiation said: "It is the worst accident I have heard of. It beggars beliefs it could have happened at all.

"We are lucky the consequences of all the incidents we have had in the dockyard have not been far, far worse. How long are we going to rely on the management being lucky?

"We are relying on their handling of these dangerous processes not just for our health and safety but for our lives.

"This does not inspire any confidence in them at all."

A spokesman for the Royal Navy said no-one had been hurt in the incident and the vessel's nuclear power plant was unaffected.

He said: "Shortly after midnight on the night of November 6/7, during a standard operation to transfer primary coolant from HMS Trafalgar to an effluent tank on the jetty, a hose ruptured, resulting in a leak of the coolant.

"A maximum of 280 litres of coolant were discharged from the hose onto the submarine casing, jetty and into the Hamoaze area of the river Tamar.

"As soon as the leak was discovered, the transfer was stopped, the area was quarantined, monitoring and sampling carried out and a clean-up operation completed.

"Initial sampling has not detected any radioactive contamination in the local environment.

"The environmental risk is assessed to be negligible and analysis of river water has not shown any detectable contamination.

"Investigations into the cause of the rupture are ongoing and will lead to remedial action as necessary to prevent this incident from re-occurring.

"This incident has not affected the submarine's programme."

A spokesman for the Environment Agency said: "Our role is to regulate the site to ensure the protection of people and the environment.

"We are certain there is no significant environmental impact, but we have taken our own samples for reassurance purposes and these are in addition to the monitoring carried out by the Ministry of Defence.

"We will investigate the circumstances of this unauthorised discharge and make sure that all necessary measures are taken to stop it happening again."

.
 

witsend

MIA
Book Reviewer
Take it the boat was warming up and time came around to discharge to the PET. Whoever was meant to be on the casing might be in for a sore butt along with a few others. Do the MA's also not have to carry out a survey during discharging. In Guzz is discharging controlled by a procedure and do they not log the levels in the PET?.
 

Joe_Crow

War Hero
John Large said:
Blah blah blah.

This man is a cock, and I have no time for anything he says.

Ian Avent from the Plymouth-based Campaign Against Nuclear Storage and Radiation said:
It is the worst accident I have heard of.

Someone's led a sheltered life.
 

PINCH

War Hero
Ian Avent is a well disrespected bottom feeder who tends to punch above his intellectual weight.. But if you shout for long enough someone will listen eventually.....

280ltr is hardly HUNDREDS or am I being silly.

Notable quotes:
1. tests in the river have showed no signs of increased radiation.
2. "The risk to the public is virtually zero..."
3. "We are certain there is no significant environmental impact,..."

Bit of a non event then
 

FlagWagger

GCM
Book Reviewer
PINCH said:
Ian Avent is a well disrespected bottom feeder who tends to punch above his intellectual weight.. But if you shout for long enough someone will listen eventually.....

280ltr is hardly HUNDREDS or am I being silly.

Notable quotes:
1. tests in the river have showed no signs of increased radiation.
2. "The risk to the public is virtually zero..."
3. "We are certain there is no significant environmental impact,..."

Bit of a non event then

Further evidence of it being a non-event is the fact that the liquid was only potentially contaminated with low-levels of tritium - what's the typical concentration of T2O in coolant? What broke down were the controls in place to prevent contamination, not a major leak of contamination itself. Move along now, nothing to see here...
 

SILVER_FOX

War Hero
Joe_Crow said:
John Large said:
Blah blah blah.

This man is a cock, and I have no time for anything he says.

Ian Avent from the Plymouth-based Campaign Against Nuclear Storage and Radiation said:
It is the worst accident I have heard of.

Someone's led a sheltered life.

Not being a Submariner I'm not an expert but it doesn't take a genius to see that his words are indeed total bollocks. Worst accident he has heard of? Christ on a bike. I hope he never gets a paper cut.

SF
 
I've still got one of those old BT Tritium phones in my loft, luminous dials on my older watch collection and some pots I made & covered in Uranium oxide glaze from when I was at school in the 1970s - when you could buy 100g of U3O8 for 99p. Those were the days!

I hope none of these donks ever have radiotherapy - they'll find it such a shock. :roll:
 

NotmeChief

Banned
Just scaremongering crap from these **** occult clubbers and trying to justify their existance.

You could take a bath in that stuff and not have a problem.
 

lsadirty

War Hero
280 litres ? When you consider the volume of water flowing in and out of Guzz on a daily basis, it's not worth mentioning. As for Ian Avent and his ilk, a clear demonstration of "a little knowledge is a dangerous thing". The man's a dreamer - like we can uninvent nuclear power ?
 
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