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851Guardians of the water environment (NRA Thames Region)
852What's happening in the Midlands region : looking at our environment
853Your guide to the Environment Agency - Thames Region - South East Area
854Further Validation of PHABSIM for the Habitat Requirements of Salmonid Fish
855Instream Flow Requirements of the River Wissey, Norfolk, Annex C - April 1993
856Audit report on the 1995 GQA biological survey
857Final report of the Stock Assessment Task Group
858A report on the use of pesticides at two Hampshire watercress farms
859Fact sheet for the RBCA tool kit for chemical releases
860Some guidance on the use of digital environmental data
861Assessing and controlling the ecotoxicity of complex effluents
862Charging for discharges scheme : guidance to the engineering industry
863Charging for discharges scheme : guidance to the power generation industry
864The Test catchment southern : recommendations for statutory water quality objectives
865The Worcestershire Stour catchment : recommendations for statutory water quality objectives
866A survey of ferruginous minewater impacts in the Welsh coalfields
867A survey of ferruginous minewater impacts in the Welsh coalfields
868Dioxins and the River Doe Lea : plain English report
869Temporal variability in chlorophyll-a : concentrations in the coastal environment : final report
870Narrowboats on the Thames : useful hints and tips
871Locks and weirs on the river Thames : how do they work?
872The River Avon and its tributaries near Malmesbury : river management studies
873Eel and elver studies in the Severn : interim report (256/6/ST)
874The quality of rivers and estuaries in Northumbria region 1990
875A guide to sustainable urban drainage : protecting the quality of our environment