Detail Approval. Development of four wind turbines, each with a tip height of 126.25 metres, which will produce up to 3MW of power. Additional Information: Site investigation has detected some below ground contamination so excavation works are required. The client is currently working to secure funding for the scheme. The client is looking to resolve an issue with airport radar mitigation. The client has undergone a procurement process for turbine supply and should issue a Balance of Plant contract in 2010. A design consultant will be appointed to work on the civil engineering package one airport mitigation matters have been resolved. Bristol Sewage Treatment Works, Kings Weston Lane.