§ Mr. HinchliffeTo ask the Secretary of State for the Environment (1) what research he has evaluated as to the size of filter pore needed to prevent possible contamination of potable water from abattoir discharges; [34776]
(2) what information he has collated as to how many water companies are requiring abattoirs involved in the national BSE cull to provide fine filter systems; [34777]
(3) what is his policy with regard to the provision of fine filter systems at abattoirs dealing with cattle from the national BSE cull; and if he will make a statement. [34778]
§ Mr. ClappisonThe Spongiform Encephalopathy Advisory Committee has advised that filtration systems in abattoirs that are capable of removing particulate matter from effluent are adequate to prevent the infective agent being carried into the aquatic environment. The Environment Agency and water companies, who have statutory responsibilities for authorising discharges from abattoirs, ensure that the required standards are applied at relevant abattoirs. In addition, waste water receives further treatment at sewage treatment works. Natural268W processes within catchment areas and drinking water treatment processes form a further multiple barrier providing adequate protection for drinking water supplies.