 Most of the construction work would affect Staines Moor and Stanwell Moor, which include a Site of Special Scientific Interest (SSSI), and extensive consultations took place in Spelthorne resulting in major modifications of the scheme.Residents of Feltham expressed opposition to plans for a new train depot close to a natural conservation area.In response to these concerns, BAA published assurances in their consultation literature that the Feltham depot would have been designed to limit noise and light pollution, and with landscape screening.