To ask the Secretary of State for the Environment what is the total percentage of waste water (a) treated at inland works and receiving secondary or tertiary treatment, (b) treated at inland works and receiving primary treatment or less, (c) discharged at sea through properly designed long outfalls and (d) discharged into the sea without treatment in each water authority area in England.

I refer the hon. Member to the following three reports: House of Lords' Select Committee on the European Communities, Session 1990–91, 10th report, "Municipal Waste Water Treatment"—House of Lords paper 50-I of 14 May 1991; the study of coastal and sewage discharges carried out for my Department by Consultants in Environmental Services, a copy of which is in the Library; and "Waterfacts 1990" published by the Water Services Association, a copy of which is also in the Library.