Air Quality - gas pressure reduction station, Southall gasworks

From: [FOI #18553 email]
To: [Greater London Authority request email]
Subject: Freedom of Information request - Air Quality - gas pressure
reduction station, Southall gasworks

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Dear Tim Henderson,

Thank you for your FOI request regarding the Gas Pressure Reduction Station at Southall Gasworks.

As you are aware, an application was submitted to the London Borough of Ealing for a gas pressure reduction station at the existing Southall Gasworks. An Environmental Impact Assessment accompanied the application that was submitted on the 18th March 2009. The documents that relate to this application can be viewed at the London Borough of Ealing planning website, as included below:

http://www.pam.ealing.gov.uk/portal/serv...

On the 27th May 2009, the Mayor of London considered the proposal. The GLA environment team did not undertake an additional air quality assessment, but provided comments on the scope of the assessment. With regards to your question about the consideration of the NOx/NO2 emissions from the Paddington railway, this was not specifically assessed within the submitted air quality assessment. The Technical Guidance that you refer to explains how local authorities should undertake a Detailed Assessment for railways as part of their Local Air Quality Management duties rather than assessment of development proposals. However, the background air quality information used from the National Air Quality Archive within the assessment includes rail emissions within the specific kilometre grid square of interest and as such is in line with the Technical Guidance issued by Defra in February 2009.

Finally, in April and September this year the most recent LAEI emissions and modelling maps were released by the Greater London Authority. Information on this is located on the Greater London Authority website (copied below) and as such replaces any previous modelling. If you would like a copy of the LAEI please do not hesitate to contact me - the cost is £15 + VAT.

http://www.london.gov.uk/mayor/environme...

I hope this has dealt with your query - please do not hesitate to contact me should you require any further information.

Thanks and Kind Regards

Rachel Conti

If you are unhappy with the way the GLA has handled your request, you may complain using the GLA's comments and complaints procedure. Available at: http://www.london.gov.uk/gla/comments/in...

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Dear Sir or Madam,

Under the Environmental Information Regulations, please could you
provide me with the details of the air quality impact assessment
that has been undertaken by the GLA in connection with planning
report PDU/0119d/01 27 May 2008 gas pressure reduction station,
Southall gasworks in the London Borough of Ealing planning
application no. P/2009/0780-S

referred to in para " 38 An air quality impact assessment has been
undertaken for this application and the approach taken is suitable.
The assessment covers the expected impact associated with the
construction of the site, as well as the operational traffic
impacts and the emissions from the proposed plant. "

In particular I would request information on the consideration of
NOx/NO2 emissions from the main Paddington-Bristol railway which
runs adjacent to the site and which were omitted from the
Environmental Assessment study in the proposal submitted by
Planning Perspectives in March 2009. As such it fails to comply
with

http://www.defra.gov.uk/environment/qual...

and the modelling appears at variance with the LAEI map at

http://www.london.gov.uk/mayor/environme...

Yours faithfully,

Tim Henderson

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