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36.
Mr. Stephen
To ask the Secretary of State for the Environment what percentage of sewage treatment works failed their consent standards in 1986; and what is the equivalent figure now. [33409]
Mr. Clappison
In 1986, 23 per cent. of those sewage treatment works tested were non-compliant with their discharge consents. In 1993, the latest year for which data are available, the equivalent figure was 6 per cent.