Depth of tube lines

The request was successful.

Dear Transport for London,

Under the Freedom of Information Act 2000, could you please supply me with a spreadsheet containing information regarding the depth of underground tunnels in London.
Specifically I would like a list of all the stations on the London Underground Network with the depth (measured in meters above sea level) of each line that runs through that station.

Yours faithfully,

D. Merren

Dear Transport for London,

I am writing to enquire about my request for information under the Freedom of Information Act 2000, sent to you on 4th May 2011 which can be found at the following url:

I have yet to receive a reply to or even acknowledgement of my request and I would now like to request an update of my application for this information to be sent to me within three working days as you are now in breach of the Act:

"A public authority must comply with section 1(1) promptly and in any event not later than the twentieth working day following the date of receipt."

I appreciate that you are busy but, as a courtesy I would have expected some communication from you if you had a good reason as to why the request was going to take longer to process than the limits allowed by law.

If I do not receive a reply within the next three working days, I shall be requesting an internal review of the way this FOI request has been handled.

Yours faithfully,

D. Merren

LU CSC FOI, Transport for London

2 Attachments

6 June 2011

Dear Mr Merren

Thank you for your email received by London Underground. You asked for information about station depths. Your request has been considered under the requirements of the Freedom of Information Act. I can confirm that we do hold the information you require. I am sorry for the slight delay in responding while I verified the information held.

Please find attached a spreadsheet that I hope you will find useful. If you have any addtional questions or I can help further please contact me on 0845 3309880.

Please see the attached information sheet for details of your right to appeal as well as information on copyright and what to do if you would like to re-use any of the information we have disclosed.

Yours sincerely

Shirley Xavier
Knowledge Manager

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Dear Ms Xavier,

Thank you very much for your response to my enquiry and your diligence in verifying the information before you sent it out to me.

The information is exactly what I was looking for.

Yours sincerely,

D. Merren

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