George Leslie Ltd

Key Facts

  • Client: Scottish Water Solutions
  • Contract value: £835,000
  • Duration of works: July 2008 – April 2009
Wastewater Treatment Works

Tyndrum Wastewater Treatment Works

Tyndrum WwTW is a small activated sludge treatment plant located in Tyndrum, Stirlingshire. The town is predominantly a tourist stop and as such, the works experiences significant seasonal flow variations, with high summer peak loads. This flow pattern affects process control and consequently the effluent quality from the works.


To increase the capacity of the works to cope with the high, seasonal peaks, the works treatment process at Tyndrum was modified and expanded and the principal works comprised the construction and installation of:

  • A modified inlet screen chamber feeding a new inlet pumping station.
  • A new FOG unit and new PST distribution chamber.
  • New submersible pumps in the existing inter-stage pumping station to feed the new SAF unit
  • A new SAF unit
  • A new submersible sludge pump to transfer sludge to the new sludge holding tank.
  • A new sludge holding tank with decant tree and passive odour unit.

A new MCC in GRP kiosk also housing a new telemetry unit.

News updates


The overall project involves the off-site fabrication and installation of a new linkspan structure at Oban Ferry Terminal for client Caledonian Maritime Assets Ltd (CMal).

12th February 2019

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GL return to the Sound of Kerrera

GL making a return visit to the Sound of Kerrera off Oban, to undertake substantial repairs to the breakwater which suffered collision damage following an altercation with a workboat earlier this year.

14th December 2018

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Polmadie Bridge official opening……..

Michael Matheson MSP and Cabinet Secretary for Transport, Infrastructure and Connectivity covered all his portfolios at the official opening of the new Polmadie Footbridge giving pedestrian and cycle transport access,

18th September 2018

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George Leslie Ltd, Blackbyres Road, Barrhead, Glasgow, G78 1DU  |  |  +44 (0)141 881 9131