401 | The Investigation and Specification of Flow Measurement Structure Design Features that Aid the Migration of Fish |
402 | The Natural (Baseline) Quality Of Groundwaters In England And Wales - The Chalk Of Lincolnshire; |
403 | The Ecology and Conservation of the Southern Damselfly (Coenagrion mercuriale - Charpentier) in Britain |
404 | 1994 annual report on fisheries in the North West incorporating the annual summary of fishery statistics |
405 | Discharges of waste under the EC titanium dioxide directives : report of the National Rivers Authority |
406 | Fish and the Ecological Assessment of Lakes and Rivers for the Water Framework Directive |
407 | Investigation of the environmental impact of Coombe Farm on the Clapton Stream January 1992 |
408 | Assessment of the Trophic Status of Rivers using Macrophytes - Evaluation of the Mean Trophic Rank |
409 | A brief history of the River Stour navigation : 1705 to the present day |
410 | Best Available Techniques For The Control Of Pollution In The Fine And Speciality Organic Chemical Sector |
411 | Technical Summary - Appraisal of the Impact of Multiple Retailers Quality Assurance Schemes on the Environment |
412 | The behaviour of atrazine and simazine within the chalk aquifer : experimental results and interpretation |
413 | The ecology and management of riparian trees in the NRA Anglian region : draft final report |
414 | Proposals to extend the Environment Agency's monitoring certification scheme (MCERTS) to the chemical testing of soils |
415 | The Natural (Baseline) Quality Of Groundwaters In England And Wales - The Culm Aquifers, SW England; |
416 | The Hydrogeological Classification of Superficial Clay: The Hydrogeological Characterisation of Glacial Till in east Anglia |
417 | Further surveys to elucidate the distribution of the fine-lined pea mussel Pisidium tenuilineatum Stelfox, 1918 |
418 | Ecological effects of discharges from watercress farms on the chalk-streams of the NRA Wessex Region |
419 | Investigate the feasibility of applying quality methods and standards within the water resources function. |
420 | Evaluation of the effectiveness of the Water Fringe Option Scheme on Environmental Quality |
421 | The environmental impact of the foot and mouth disease outbreak: and interim assessment |
422 | Investigation of the Relationship between the LIFE Index and RIVPACS: Putting LIFE into RIVPACS |
423 | Estuarine fish survey 1989 : inferences on the pollution status of the Thames estuary |
424 | Riverside litter : results of the 1990 campaign and a strategy for the future |
425 | The potential for the use of Willow in buffer zones for reducing nitrate and atrazine pollution |