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Posted By Ian Mitchell
Hi all
We have had a request from our PC (probably passed down from the client) to bund our excavators/ dumpers etc overnight in the event of oil leaks. We are in a power station on a surface consisting of PFA! Some distance away there is a nature reserve (over 100m) which may be where they are coming from.
However, this control measure seems way excessive for the likelihood and amount of oil that could leak. We already have preventive maintenance and a daily/ weekly inspection regime in place, plus bunds etc for all generators, small plant, storage drums and so forth.
My question is, has anybody done this sort of thing before and how did you approach it? Plant nappy type things would be ripped to shreds, and I doubt there is a large enough drip tray for a 360! Is there any legal requirement for this specific request (not a general one for pollution prevention), which I doubt.
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Posted By Ian Mitchell
The damn thing submitted midway through!!
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Posted By Ian Mitchell
REALLY SORRY. There is some sort of computer fault!! Third time lucky.
One other solution would be to dedicate an area large enough to park all the plant overnight and contain this area.
If anybody can suggest more practicable alternatives, much appreciated...
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Posted By timwilman
We used a low wall of sandbags and/or railway sleepers and covered it in builders damp proof membrane. Leave a gap, drive vehicle on, use boards to protect DPM, fill in the gap. Hope it doesn't rain!
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Posted By garyh
Why not a drip tray? The chances of any vehcicle losing all it's oil would be pretty low; I would not worry about the 110% rule.
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Posted By Smiff
can the machines not be parked on a hardstanding?
There is little likelihood of a leak at night, thing tend to fail when being used in my experience.
Without any pressure anywhere the worst will be a drip drip in the night.
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Posted By Richard Altoft
Dig out a layer of pfa to form a basin in a designated spot, lay a polythene sheet to bottom and sides, protect sheet with geotextile and put back pfa. Offer in writing to dig out all contaminated pfa and dispose off to designated and certificated disposal point. In effect you are doing what landfills do by separating source of pollution (rubbish in their case) from all routes to water courses and ground beneath etc.
R
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Posted By Joe Chris
Richards reply above is spot on.
You have the machine on site to do this job, and you will not need to dig more that 3 - 4 inches to protect the sheeting.
I would suggest that you keep the contaminated area as small / shallow as possible (to keep costs down when you remove it), and clearly mark it with timbers or pegs.
The initial request does seem like overkill to me and I have never been made aware of a need to provide a drip tray for large plant before, however this solution should be relatively quick and easy.
Good luck
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Posted By Richard Altoft
I was the construction manager for the biggest gas fired power station built in the UK (£540million project) and that was on pfa and we did not do anything above what I suggested.
Penetration of oil or fuel into pfa will be very slight -- in fact pfa makes excellent absorbent. Request is OTT to our eyes but Power Stations are very much in the spotlight every minute of every day over pollution so take this stuff very seriously.
R
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