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Posted By Dave Hull
I have a question regarding asbestos and hope that someone out there can help.
If asbestos is found buried in the ground of a site do we have to remove it?
Or could we seal it for example by building a car park over the top of it and mark it on the site map?
Any advise would be greatly appreciated.
Thanks
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Posted By Robert K Lewis
Generally you can seal it in the foundations but there are many political stances/voices that can affect your final decision. I prefer the seal in and record option though.
However if you move it at all around the site you are likely to have to go for removal as the balance does start to move the other way.
Bob
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Posted By Dave Wilson
Your decision may be governed by type of material and how much there is, how likely it would be disturbed in future against the exposure when removing etc.
Difficult one mate, you could probably do what you intend if it is under the tarmac etc remember its a duty to manage not to remove.
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Posted By CW
Preparing the ground would distribute it further, how much is there, what is it contained in and what condition is it in?
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Posted By Doug Kelly
I'd agree that much depends on the nature of the material and the likelihood that it will be disturbed now and in the future.
I have read in previous guidance on contaminated land that it would be preferable to excavate the problem now rather than leave it for others, but by no means is it suggested that you 'must' remove, as Dave quite rightly states. Are you working for a 'client' or landowner? What are their views? After all, it's their asbestos!
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Posted By teaboy
do you know who put it there? or do you know the previous landowner?
remember the polluter pays principal....
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Posted By Dave Hull
Thanks all for the responses.
The previous owner was MOD and we are looking into potentially reclaiming costs if needed.
The asbestos is a mix of chrysotile & amosite and is spread randomly across a significant patch of shrub land. The shrub was removed to allow testing and the area is now fenced off.
There are no large patches its all quite small amounts scattered.
The current contractor is pushing for removal but that doesn't come as a surprise as they wouldn't get the work to encase it. With the recent increase in land fill costs the price is getting quite horrendous.
Thanks
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Posted By Robert K Lewis
Totally understand the issue of landfill and related charges. The admixture of even firmly bonded ACMs and biodegradeable materials such as topsoil cannot be sent to Monocell sites and have thus to go as Hazardous waste.
I am afraid you need some good site specific advice to take this much further.
Bob
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Posted By Dave Wilson
Dave email me?
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Posted By Dave Wilson
Fibre type is an issue but the overriding factor is how likely it would be to get the product airborne and then breathed in.
Cement / Floor tiles etc are all low risk Limpet / Lagging &h risk, AIB are all high risk so it would depend on what PRODUCT you have spread around.
Asbestos as Hazardous Waste is only classed as such if it is more than 0.1% W/W per volume so might be worth a hand pick and clearance of any HOT SPOTS or Hand pick and tarmac over but to do this you are going to have to remove a certain depth of soil.
If you uncover more when doing this what you going to do.
What generally happens is you would have a company (licensed or unlicensed) depending on the product on standby who can do this and remove / pick as you go etc. I will send you some info.
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Posted By Karen Wilson
Dave - Tend to need to have the area capped in some way - used to be a depth of 1m if I remember correctly. If not capped then the worms alone will bring the material to the surface over time.
Karen
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