WEST OF SCOTLAND Water's £100M investment in new treatment facilities was called into question by a capacity audience at West of Scotland association's headquarters last week.
In order to comply with EU standards, WSW is having to invest in a complete overhaul of its water treatment works and water supply infrastructure.
Originally built by Glasgow's forefathers to eliminate cholera from the city, the Loch Katrine water supply scheme has for 140 years been supplying some of the purest and highest quality water in the UK.
Now, the scheme supplies more than 400M litre a day to Glasgow's 750,000 population.
WSW's Tony Martin and Stirling Water's Mike Barcroft and Mark Wilson outlined the many constraints faced by the project team - not least the sensitivity and amenity value of the areas surrounding the existing works.
As a result a radical option has been proposed to minimise the plant's impact, involving conjunctive use of treatment facilities operated by the neighbouring authority, East of Scotland Water.
The audience had doubts about the effectiveness of a treatment process which would see upland water from Loch Katrine mixed with lowland water from Loch Lomond.
WSW explained that these fears would be allayed by information taken from existing data and a research sized pilot plant, to be built specifically for the project.
Martin and Barcroft added that the scheme is also likely to feature several new treated water storage reservoirs.
And it is expected that ongoing replacement and refurbishment of the water distribution system will tackle its high leakage problems, reducing total demand.
The proposals are being developed by Stirling Water - a consortium of MJ Gleeson, Thames Water and Montgomery Watson - in two phases.
The first will be optioneering and consultation, followed by detailed design. Construction proper is planned to start mid2002 for completion in 2005.