Sorry for throwing another variable into the pot but coal gas has been
mentioned. Should 250m or other appropriate VERTICAL distance to old
coal workings be considered? Coal workings are often mentioned in
subsidence terms but do those authorities unlucky enough to have shallow
workings in potential development areas take them into account from the
mines gas aspect? The size of gas reservoir in such areas available to
leak out to surface, particularly under conditions of sharply falling
barometer could be potentially huge & dwarf the amount available in a
landfill site.
Regards
-------------------------------------------------
Malcolm Chattwood
Environmental Protection Officer
Argyll & Bute Council
Kilmory
Lochgilphead
Argyll
PA31 8RT
01546 604421
------------------------------------------------
-----Original Message-----
From: Contaminated Land Management Discussion List
[mailto:[log in to unmask]] On Behalf Of Paul
Pearse
Sent: 25 October 2006 13:57
To: [log in to unmask]
Subject: Re: 250m from Landfill
Robin
Is there a copy of the DoE investigation anywhere?
Paul Pearse
Environmental Control Officer
Planning, Protection & Licensing Colchester Borough Council PO Box 889,
Town Hall Colchester CO1 1FL
Tel: 01206 282592
Fx: 01206 282598
Help Protect the Environment. Only Print out this email if it is
absolutely necessary.
Any opinions expressed are not necessarily those of Colchester Borough
Council and or Colchester Borough Homes. This e-mail and any
attachments, replies and forwarded copies are confidential and are
strictly for the use of named recipient(s) only. If you have received it
in error you may not make use of it. Please e-mail us, including a copy
of the message, to [log in to unmask] Then delete the e-mail
and any copies.
-----Original Message-----
From: Contaminated Land Management Discussion List
[mailto:[log in to unmask]] On Behalf Of Robin
MacKenzie
Sent: 25 October 2006 11:13
To: [log in to unmask]
Subject: Re: 250m from Landfill
The history for the 250mtr rule was after an incident at Loscoe where a
house blew up and it was suspected that it was a huge barometric drop in
pressure which allowed the methane emanating from a source to travel
very quickly up a permeable gravel layer into a property although the
geological circumstances are far more complex. After the accident
investigation, the DoE wrote to every Council in the land and asked them
for all the properties within 250mtr of landfills within their areas.
Hence the 250mtr was taken as a literal safe boundary for development
and protection of buildings.
As I recall there was a contention regarding the source of the methane
as there were two potential sources, Landfill Gas and Natural methane,
Coal Gas.
Here is a link to some authoritative history on the incident:
http://www.kabrna.com/cpgs/programme/events_01_02.htm#Derbyshire%20Disas
ters
Regards,
Robin Mackenzie
-----Original Message-----
From: Contaminated Land Management Discussion List
[mailto:[log in to unmask]] On Behalf Of Drake,
Jason
Sent: 25 October 2006 10:18
To: [log in to unmask]
Subject: Re: 250m from Landfill
... and on the flip side of what Ben has noted, there are plenty of
sites where gas is not migrating at all.
Absolutely agree with Ben about RA, CSM, SI etc - I think the "250m
theory" is one of the most misunderstood / abused in con land.
By the way - Ben, do you have a reference to the EA's 50m
recommendation?
Jason.
Jason Drake, City of York Council.
-----Original Message-----
From: Contaminated Land Management Discussion List
[mailto:[log in to unmask]]On Behalf Of Ben
Crowther
Sent: 25 October 2006 09:42
To: [log in to unmask]
Subject: Re: 250m from Landfill
EA recomend no development within 50 metres, but I'm aware of gas
migrating a mile or so - ICI Ellesmere port I think - not methane but...
in a former sandy transmissable river bed, Its all down to Risk
Assessment, conceptual models, SI and a lump of luck? (generally bad...)
By the way, anyone go to the CIRIA workshop on landfill gas analysis in
Glasgow last week?, Can I get a copy of the notes or (and this is to
the Former MAPAC Girls and Boys) did you finialise a landfill gas risk
assessment proocedure for everyone to benifit from?
Cheers
Ben 'cat-amongst-the pidgeons' Crowther.
Ben Crowther
Pollution Control Officer
Environmental Health Services
Calderdale MBC
Northgate House
Northgate
Halifax
West Yorkshire
HX1 1UN
Tel: 01422 392316
e-mail: [log in to unmask]
Warning
Please note that whilst this e-mail and any attachments originate from
Calderdale MBC, the views expressed may not necessarily represent the
views of Calderdale MBC.
This e-mail and any attachments may contain information that is
privileged, confidential or otherwise protected from disclosure. They
must not be used by, or copied or disclosed to persons other than the
intended recipient. Any liability (in negligence or otherwise) arising
from any third party acting, or refraining from acting, on any
information contained in this e-mail is excluded. If you have received
this e-mail in error please inform the sender and delete the e-mail.
E-mail can never be 100% secure. Please bear this in mind and carry out
such virus and other checks, as you consider appropriate. Calderdale
MBC accepts no responsibility in this regard.
Copyright of this e-mail and any attachments belongs to Calderdale MBC.
Should you communicate with anyone at Calderdale MBC by e-mail, you
consent to the Council monitoring and reading any such correspondence.
>>> Paul Pearse <[log in to unmask]> 23/10/2006 14:31 >>>
Dear all
Seeing that the "250m from a landfill" is an arbitrary and outdated
concept, I would like to know what people condition about LFG put when
commenting on planning apps nowadays?
Cheers!
Paul Pearse
Environmental Control Officer
Planning, Protection & Licensing Colchester Borough Council PO Box 889,
Town Hall Colchester CO1 1FL
Tel: 01206 282592
Fx: 01206 282598
Help Protect the Environment. Only Print out this email if it is
absolutely necessary.
Any opinions expressed are not necessarily those of Colchester Borough
Council and or Colchester Borough Homes. This e-mail and any
attachments, replies and forwarded copies are confidential and are
strictly for the use of named recipient(s) only. If you have received it
in error you may not make use of it. Please e-mail us, including a copy
of the message, to [log in to unmask]
<mailto:[log in to unmask]> . Then delete the e-mail and any
copies.
Any opinions expressed are not necessarily those of Colchester Borough
Council and or Colchester Borough Homes. This e-mail and any
attachments, replies and forwarded copies are confidential and are
strictly for the use of named recipient(s) only. If you have received it
in error you are prohibited from distributing, copying, making use of or
unlawful use of, any information in it. Please e-mail us, including a
copy of the message, to [log in to unmask] Then delete the
e-mail and any copies.
Internet email may be susceptible to data corruption, interception and
unauthorised amendment for which Colchester Borough Council and
Colchester Borough Homes does not accept liability. Neither is liability
accepted for any losses caused as a result of computer viruses.
########################################################################
#############
This e-mail message has been scanned for Viruses and Content and cleared
by MailMarshal, the Council's Content Scanner
########################################################################
#############
########################################################################
##############
Warning
Please note that whilst this e-mail and any attachments originate from
Calderdale MBC,
the views expressed may not necessarily represent the views of
Calderdale MBC.
This e-mail and any attachments may contain information that is
privileged,
confidential or otherwise protected from disclosure.
They must not be used by, or copied or disclosed to persons other than
the intended recipient.
Any liability (in negligence or otherwise) arising from any third party
acting, or refraining from acting,
on any information contained in this e-mail is excluded.
If you have received this e-mail in error please inform the sender and
delete the e-mail.
E-mail can never be 100{ secure.}Please bear this in mind and carry out
such virus and other checks, as you consider appropriate.
Calderdale MBC accepts no responsibility in this regard.
Copyright of this e-mail and any attachments belongs to Calderdale MBC.
Should you communicate with anyone at Calderdale MBC by e-mail, you
consent to the
Council monitoring and reading any such correspondence.
########################################################################
##############
* * * * * * * * * * * *
This communication is from City of York Council.
The information contained within, and in any attachment(s), is
confidential and legally privileged. It is for the exclusive use of the
intended recipient(s). If you are not the intended recipient(s), please
note that any form of distribution, copying or use of this
communication, or the information within, is strictly prohibited and may
be unlawful. Equally, you must not disclose all, or part, of its
contents to any other person.
If you have received this communication in error, please return it
immediately to the sender, then delete and destroy any copies of it.
City of York Council disclaims any liability for action taken in
reliance on the content of this communication.
The information in this email is solely for the intended recipients.
If you are not an intended recipient, you must not disclose, copy, or
distribute its contents or use them in any way: please advise the sender
immediately and delete this email.
Perth & Kinross Council does not warrant that this email or any
attachments are virus-free and does not accept any liability for any
loss or damage resulting from any virus infection. Perth & Kinross
Council may monitor or examine any emails received by its email system.
The information contained in this email may not be the views of Perth &
Kinross Council. It is possible for email to be falsified and the sender
cannot be held responsible for the integrity of the information
contained in it.
Requests to Perth & Kinross Council under the Freedom of Information
(Scotland) Act should be directed to the Freedom of Information Team -
email: [log in to unmask]
Any opinions expressed are not necessarily those of Colchester Borough
Council and or Colchester Borough Homes. This e-mail and any
attachments, replies and forwarded copies are confidential and are
strictly for the use of named recipient(s) only. If you have received it
in error you are prohibited from distributing, copying, making use of or
unlawful use of, any information in it. Please e-mail us, including a
copy of the message, to [log in to unmask] Then delete the
e-mail and any copies.
Internet email may be susceptible to data corruption, interception and
unauthorised amendment for which Colchester Borough Council and
Colchester Borough Homes does not accept liability. Neither is liability
accepted for any losses caused as a result of computer viruses.
--------------------------------------------------------------------------------
Privileged/Confidential Information may be contained in this message. If you are not the addressee indicated in this message (or responsible for delivery of the message to such person), you may not disclose, copy or deliver this message to anyone and any action taken or omitted to be taken in reliance on it, is prohibited and may be unlawful.
In such case, you should destroy this message and kindly notify the sender - [log in to unmask] - by reply email. Opinions, conclusions and other information in this message that do not relate to the official business of Argyll and Bute Council shall be understood as neither given nor endorsed by it.
All communications sent to or from Argyll and Bute Council may be subject to recording and/or monitoring in accordance with relevant legislation.
This email has been scanned for viruses, vandals and malicious content.
|
