4 Greenwich University is carrying out a mammal survey including the Rainham marsh development site. John Benge of Hertford University rates Rainham among the best south-east sites he has found for what we hope will be a definitive study of the water vole. We now know that the colony extends over the whole SSSI to Aveley via the watercourses around and between the silt lagoons and across Wennington marsh. How the existence of probably the largest Water Vole colony in Greater London escaped detection during environmental impact assessments defies explanation. Ruth Day of LNHS has confirmed the continued presence of the Scarce Emerald damselfly. EA have re-surveyed the watercourses and full results are awaited; some rarities are believed to have been confirmed. Butterfly Conservation are supplying moth records. Peter Harvey and Del Smith are assisting on Hymenoptera and Diptera. FORM are endeavouring to co-ordinate a wider re-survey of data and comparison with habitat and species action plans. Expert help would be appreciated. All of this ongoing work is essential for defining the role of Rainham within the Greater London and Havering Biodiversity Action Plans, and preparing for a possible Ministerial call-in or Public Inquiry. Ministerial, MP and Council lobbying is ongoing. Greenwich University are currently preparing a management plan covering the whole Havering, Thurrock, Dartford and Crayford marshland complex. RSPB have made useful inputs and included Rainham in their 'Land for Life' campaign which highlights damage to key UK sites in support of a tougher wildlife protection Bill. The London Wildlife Trust are preparing campaign literature. Friends of the Earth have circulated a pamphlet 'The Best of Both Worlds' supporting the campaign to achieve the designation of Rainham, Wennington, Aveley, Dartford and Crayford marshes as an ESA, and the creation of a regional Thames eco-tourism project around it. A partnership to achieve this is being discussed with other NGOs. All this will add weight to NGO efforts, either to get conservation management done by the current owners, or to help in bidding for funding to finance an NGO-led management partnership. Several Havering Councillors agreed to look at the WWT Barn Elms project with us to study how this could be achieved. A striking contrast to the neglect and proposed destruction of ancient grazing marsh at Rainham is the thousands of pounds which has been spent at Barn Elms to create a small area of new grazing marsh which is already attracting migrants. We recently discovered that Havering Council sought advice from WWT for a Thames Estuary Environment Centre at Rainham. The mission statement was 'to provide opportunities for the public to observe the rich mosaic of wildlife and habitats in the area of the centre and to educate visitors about the nature conservation significance of the adjoining Inner Thames Marshes SSSI and possibly the wider Thames Estuary; and through the design and function of the Centre to observe the principles of sustainability in action'. This may be no more than a tactic to deploy at Inquiry, since the Council has UDP policies to develop 51% of the SSSI which is perversely described as 'disused and derelict...urban brown land', a classic 'catch 22' !. In the recent past even larger schemes have been promoted. The creation of a largely artificial environmental experience funded by destroying at least half of the real ecology of the largest SSSI in Greater London could hardly be more contentious. Objections to Planning applications P0050.97, P1467.97 (amended) Rainham Marsh should be addressed to; Head of Development Control Services, Directorate of Environment and Planning, LB Havering, Mercury House, Mercury Gdns Romford RM1 3SL, and copied if possible to-Lord Walker, English Partnerships, 16-18 Old Queen St London SW1 9HP Essex Field Club Newsletter No. 26, August 1998