Sewage pumping stations - capacity

Paul Waller made this Rheoliadau Gwybodaeth Amgylcheddol request to Severn Trent Plc
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Roedd y cais yn rhannol lwyddiannus.

Dear Severn Trent Plc,

How is the pumping capacity of Sewage pumping stations determined and additional loads from proposed new property developments calculated?
What level/s would lead to new or uprated pumping facitites being advisable?

Yours faithfully,

Paul Waller

Severn Trent Plc

Mr Waller

Thank you for your request. We will respond to you in due course.

Hayley Bowen
Hayley Bowen
Data Protection Officer

( Direct : 0121 722 4506 (Int. 001 4506)
( [mobile number]
* [email address]

Severn Trent Water Limited, 2297 Coventry Road, Birmingham, B26 3PU

Paul Waller
<[FOI #34134 email]> To: EIR requests
at Severn Trent Water
28/04/2010 08:22 <[Severn Trent Water request email]>
cc:
Subject:
Environmental Information
Regulations request - Sewage
pumping stations - capacity

Dear Severn Trent Plc,

How is the pumping capacity of Sewage pumping stations determined
and additional loads from proposed new property developments
calculated?
What level/s would lead to new or uprated pumping facitites being
advisable?

Yours faithfully,

Paul Waller

dangos adrannau a ddyfynnir

Severn Trent Plc

Mr Waller

We check the capacity of the receiving sewerage system, which includes the
pumping stations, based on the requirements of ‘Sewers for Adoption 6th
Edition’. We liaise with our Pumping Station Managers regarding whether
there are existing operational issues with a station.

If we believe there are issues with the station's performance, capacity,
or the proposed new development is sufficiently large enough, we will
carry out drainage modelling to get an accurate analysis of the station
(and sewers) performances as existing, and with the new proposed flows
added. Design flows are based on ‘Sewers for Adoptions 6th Edition’
requirements.

I hope the above information is helpful to you.

Kind Regards

Hayley Bowen
Hayley Bowen
Data Protection Officer

( Direct : 0121 722 4506 (Int. 001 4506)
* [email address]

Severn Trent Water Limited, 2297 Coventry Road, Birmingham, B26 3PU

Paul Waller
<[FOI #34134 email]> To: EIR requests
at Severn Trent Water
28/04/2010 08:22 <[Severn Trent Water request email]>
cc:
Subject:
Environmental Information
Regulations request - Sewage
pumping stations - capacity

Dear Severn Trent Plc,

How is the pumping capacity of Sewage pumping stations determined
and additional loads from proposed new property developments
calculated?
What level/s would lead to new or uprated pumping facitites being
advisable?

Yours faithfully,

Paul Waller

dangos adrannau a ddyfynnir

Dear Severn Trent Plc,

"Sewers for adoption" 6th edition is applicable to pumping stations not exceeding 30KW per pump, constructed on housing or industrial estates.
Please could you apply the question posed to the other classes of sewage pumping installation.

Yours faithfully,

Paul Waller

Severn Trent Plc

Dear Mr Waller

I have passed on your supplementary question to the relevant department
and they have come back to me with this response

"Any pumping station design requires to comply with Severn Trent's Design
Guidelines. Severn Trent will accept stations under 30KW per pump that
comply with Sewers for Adoption 6th Edition (subject to the Addendum).

Therefore design proposals for stations over 30KW per pump will need to be
submitted to Severn Trent to check against our design guidelines."

If this still does not answer your question, please provide me with some
more detail and I will investigate further

Kind Regards

Hayley Bowen

dangos adrannau a ddyfynnir