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401The Investigation and Specification of Flow Measurement Structure Design Features that Aid the Migration of Fish
402The Natural (Baseline) Quality Of Groundwaters In England And Wales - The Chalk Of Lincolnshire;
403The Ecology and Conservation of the Southern Damselfly (Coenagrion mercuriale - Charpentier) in Britain
4041994 annual report on fisheries in the North West incorporating the annual summary of fishery statistics
405Discharges of waste under the EC titanium dioxide directives : report of the National Rivers Authority
406Fish and the Ecological Assessment of Lakes and Rivers for the Water Framework Directive
407Investigation of the environmental impact of Coombe Farm on the Clapton Stream January 1992
408Assessment of the Trophic Status of Rivers using Macrophytes - Evaluation of the Mean Trophic Rank
409A brief history of the River Stour navigation : 1705 to the present day
410Best Available Techniques For The Control Of Pollution In The Fine And Speciality Organic Chemical Sector
411Technical Summary - Appraisal of the Impact of Multiple Retailers Quality Assurance Schemes on the Environment
412The behaviour of atrazine and simazine within the chalk aquifer : experimental results and interpretation
413The ecology and management of riparian trees in the NRA Anglian region : draft final report
414Proposals to extend the Environment Agency's monitoring certification scheme (MCERTS) to the chemical testing of soils
415The Natural (Baseline) Quality Of Groundwaters In England And Wales - The Culm Aquifers, SW England;
416The Hydrogeological Classification of Superficial Clay: The Hydrogeological Characterisation of Glacial Till in east Anglia
417Further surveys to elucidate the distribution of the fine-lined pea mussel Pisidium tenuilineatum Stelfox, 1918
418Ecological effects of discharges from watercress farms on the chalk-streams of the NRA Wessex Region
419Investigate the feasibility of applying quality methods and standards within the water resources function.
420Evaluation of the effectiveness of the Water Fringe Option Scheme on Environmental Quality
421The environmental impact of the foot and mouth disease outbreak: and interim assessment
422Investigation of the Relationship between the LIFE Index and RIVPACS: Putting LIFE into RIVPACS
423Estuarine fish survey 1989 : inferences on the pollution status of the Thames estuary
424Riverside litter : results of the 1990 campaign and a strategy for the future
425The potential for the use of Willow in buffer zones for reducing nitrate and atrazine pollution