HC Deb 20 May 1991 vol 191 c341W
Dr. Kim Howells

To ask the Secretary of State for Wales whether underground flows of water in Wales are being monitored for signs of pollution originating in badly drained and maintained silage clamps on farms.

Mr. Nicholas Bennett

Yes. The National Rivers Authority monitors groundwater in Wales, principally that used for potable supplies, at points of emergence The Control of Pollution (Silage, Slurry and Agricultural Fuel Oil) Regulations 1991—SI No. 324—which come into force on 1 September will reduce considerably risks to controlled waters by setting construction standards and strengthening the NRA's powers.