[holding answer 17 September 2007]: I have been asked to reply.
The Pirbright Site Redevelopment Programme (PSRP) Board, comprising senior officials from BBSRC, DEFRA, DIUS, the Veterinary Laboratories Agency (VLA) and the Institute for Animal Health (IAH), is responsible for overseeing the redevelopment of the site including the drainage.
Tenders for the drainage system of around £220,000 were received in October 2006. DEFRA provided regulatory approval in early 2007. This scheme was approved by the PSRP Board in May 2007 and work began as planned in July 2007.