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976Instream Flow Requirements of the River Wissey, Norfolk, Annex C - April 1993
977A second stage evaluation of the Grant YSI3815 Water Logger
978Audit report on the 1995 GQA biological survey
979Final report of the Stock Assessment Task Group
980A report on the use of pesticides at two Hampshire watercress farms
981Fact sheet for the RBCA tool kit for chemical releases
982The identification and investigation of a dinoflagellate bloom in Mounts Bay, Cornwall
983Some guidance on the use of digital environmental data
984An investigation of sewage on the beach at Porthcothan
985Assessing and controlling the ecotoxicity of complex effluents
986Charging for discharges scheme : guidance to the engineering industry
987Charging for discharges scheme : guidance to the power generation industry
988The Test catchment southern : recommendations for statutory water quality objectives
989An assessment of river water quality in the River Kenn
990A survey of ferruginous minewater impacts in the Welsh coalfields
991A survey of ferruginous minewater impacts in the Welsh coalfields
992Dioxins and the River Doe Lea : plain English report
993Temporal variability in chlorophyll-a : concentrations in the coastal environment : final report
994Narrowboats on the Thames : useful hints and tips
995Locks and weirs on the river Thames : how do they work?
996Second annual review of the Lower Bristol Avon catchment management plan
997Second annual review of the Upper Bristol Avon catchment management plan
998The River Avon and its tributaries near Malmesbury : river management studies
999Fishery survey of the Bridgwater and Taunton Canal
1000The quality of rivers and estuaries in Northumbria region 1990