depends where they are sampling (i.e. what is going to go on the area
if it is going to be tarmac or be underneath the building then the 1
sample in a 40x40m area is prob appropriate as the development will
remediate most problems with a capping unless tph or ground
gas(possible?) is found then protection would be required for the
building however a 1 in 40x40m sample should show up these if there is a
problem (obviously taking possible tank placement into consideration
i.e. in around and under tanks aswell)
if there is going to be soft landscaping then further testing would be
needed to show that there are no hotspots as a ~40x40m hotspot is rather
large
cheers
Gareth Rees
Contaminated Land Officer,
Harborough District Council,
Tel: 01858 821174
-----Original Message-----
From: Contaminated Land Management Discussion List
[mailto:[log in to unmask]] On Behalf Of Clare
Horton
Sent: 23 November 2007 11:45
To: [log in to unmask]
Subject: Sampling density.
Hello everyone,
greetings from Aberdeen.
I wonder if some of you could answer the following:
A Consultant has stated the following:
' It is our experience that a 40x40m sampling density is widely accepted
by Local Authorities as adequate to characterise the risk for planning
purposes for commercial/ industrial end use'.
Would you? I wouldn't but would like a consensus before deciding on my
next course of action.
Thanks,
Clare.
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