§ Dr. CunninghamTo ask the Secretary of State for Wales if he will list the number of sewage outfalls to the sea in the Welsh water authority; and, of these, how many include primary treatment works.
§ Mr. Peter Walker[holding answer 14 March 1989]: The current information on sewage outfalls to the sea in the Welsh water authority area is as follows:
505W
Level of treatment Number of outfalls None 90 Tidal storage 23 Preliminary—Screened and/or macerated 53 Primary 29 Secondary 61 Total 256 The Welsh water authority continues to pursue a policy of improving the treatment and disposal of sewage so as to meet the quality objectives of the receiving water. Since 1979 some 10 untreated discharges have been abandoned and a further five replaced by outfalls with preliminary treatment. One new outfall with secondary treatment has been constructed. These figures do not include work which has upgraded existing treated outfalls to a satisfactory standard. Since 1981–82 the authority advises that capital expenditure of over £21.5 million (at 1988 prices) has been undertaken in respect of work to sea outfalls and sewage treatment works discharging to tidal waters.