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4401Guardians of the water environment : NRA Welsh Region (bilingual) : Diogelwyr amgyllchedd dwr : rhanbarth Cymru
4402APPRAISE II: Review of Aquatic Dispersion Models
4403Proposed scheme of charges in respect of discharges to controlled waters : an introduction
4404Business requirement specification : integrated accounting system for the (IAS)
4405River Channel Typology: Feasibility for Use in River Management
4406Regional water quality monitoring and surveillance programme for 1992 : biological impact assessment of discharges on receiving waters
4407Wicken fen : nature reserve
4408Sea Trout Catch Statistics
4409A report on fish production in the National Rivers Authority
4410Water pollution incidents in England and Wales - 1993 : report of the National Rivers Authority
4411The Kentish Stour
4412Regional plan 1994/95
4413River Valency and Crackington Streams catchment river water quality classification 1990
4414Flood defence emergency response - national levels of service - Steering Committee notes (289/2/T)
4415Yield calculations and nitrate predictions for Grafham Water
4416River Axe abstraction : implications for water quality
4417Annual classification of river water quality 1991
4418Riverbank Protection Using Willows - Scoping Study
4419Aquatic Plant Management Group Project
4420Proposed scheme of charges in respect of applications for consent to discharge to controlled waters
4421Cost-estimation manual for sea defences (217/2/A) : draft final report
4422Moston Brook Summary Report for the Evidence and Measures Project
4423Summary report on environmental developments : volume 1 : legislation and European practice : October 1988
4424Corporate Environmental Reporting in the UK Water Sector - A Concise Review
4425Fish and the Ecological Assessment of Lakes and Rivers for the Water Framework Directive