§ Dr. Kim HowellsTo ask the Secretary of State for Wales what is the estimated tonnage of raw sewage and partly treated sewage released into the River Taff and its tributaries by sewage treatment plants in 1987–88, 1988–89 and 1989–90; and what is the projected tonnage for 1990–91.
§ Mr. Nicholas BennettThis information is not available. I understand that most of the raw or partially treated sewage discharged into the River Taff is from emergency or storm sewer overflows. The operation of such overflows and volumns discharged vary according to weather conditions. The consented volumes of discharges and the results of sampling of controlled waters undertaken by the National Rivers Authority are entered on to public registers maintained by the authority.
§ Dr. Kim HowellsTo ask the Secretary of State for Wales what measures are to be taken to stop the flow of raw effluent into the River Taff and its tributaries from sewage treatment plants working in that catchment area.
§ Mr. Nicholas BennettThis is a matter for the National Rivers Authority and those discharging the effluent. I have asked the NRA to write to the hon. Gentleman on this matter.