HC Deb 04 July 1983 vol 45 cc30-1W
Sir Brandon Rhys Williams

asked the Secretary of State for the Environment if he will require the water authorities to publish figures indicating the revenue cost and the full cost of effluent treatment per unit of volume at each of their works serving areas with a population of 5,000 or more; and if he will publish a table collating such information as is available.

Mr. Waldegrave

Water authorities publish performance ratios in their annual reports, including operating expenditure on sewage treatment per head of population. There are many individual works and their costs vary widely according to the treatment required and other factors. Properly comparable figures are not generally available.