With reference to 'Blackpool spring clean' (NCE 25 February), there are a number of points I wish to clarify about the works that North West Water is carrying out at Blackpool.
Your introductory paragraph implies £500M of investment has failed to treat sewage to European Union standards. This is not the case.
All the assets and infrastructure completed under this Sea Change programme are meeting their respective performance criteria set by the Environment Agency and cannot be considered to be a failure. Much of the work has brought about improvements in the water quality, which has met the EU bathing water standard.
Furthermore, Sea Change targeted bathing water improvement across the region from Silloth, on the Scottish border, to Southport - not just on the Fylde as your article suggested.
The additional investment we are making now - £150M - is linked directly to the Fylde coast and addresses bathing water standards specifically, not sewage directives.
It is the Environment Agency which is responsible for bathing water quality, and it is under Agency instruction that North West Water's work is being undertaken. At Blackpool and nearby Fleetwood the storm water storage facilities featured in your article are aimed at meeting the EA's instructed design criteria of reducing the number of storm water discharges to an average of three per bathing season.
Julie Wakeham, Bathing water co-ordinator, North West Water Ltd, Dawson House, Great Sankey, Warrington WA5 3LW
No problem with wind
The British Wind Energy Association (NCE 4 March) that is a respected supporter of wind energy, was originally housed in the headquarters building of the Royal Aeronautical Society in Hamilton Place.
I don't remember anyone complaining that the reputation of the RAeS was thereby 'prostituted'.
Robert Freer (F), 14 Alleyn Crescent, London SE21 8BN