4551 | Effects on gammarus of sediments impacted by watercress farms |
4552 | Synoptic State of the Environment Monitoring |
4553 | Northern sea wall (Reculver) improvement works : environmental statement : non-technical summary |
4554 | Evaluation of the effectiveness of the Water Fringe Option Scheme on Environmental Quality |
4555 | Monitoring of rivers and effluents |
4556 | Environmental Protection Act 1990 Best Practical Environmental Option and Other Assessment Methods: Case Study Comparisons |
4557 | The River Conwy catchment management plan : action plan (bilingual) : 1995: Cynllun Gweithrediad Cynllun Rheoli Dalgylch yr Afon Conwy 1995 |
4558 | Impact assessment of Meldon quarry on water quality in the West Okement river |
4559 | River Strat catchment river water quality classification 1991 |
4560 | Report on the quality of bathing waters 1990 |
4561 | Isle of Wight catchment management plan : consultation report |
4562 | Spring Carp Mortality Syndrome (SCMS) Transmission Study |
4563 | River catchment management plans : data report |
4564 | Hampshire salmon investigation report on salmon radio tracking 1991 |
4565 | Focus on Biodiversity Update 2002 |
4566 | R and D Strategy to Support Implementation of the Water Framework Directive - Preliminary Scoping Report |
4567 | Biological report of the 1991 coastal and estuarine survey from Crosby to Glasson |
4568 | River Corridor Surveys
|
4569 | Technical services available to NRA staff |
4570 | Regional water resource review |
4571 | The rehabilitation of the River Taff |
4572 | Electron Microscope Image: Filament of Oscillatoria being ingested by the ciliate Nassula tumida |
4573 | The government's policy for a public regulatory body in a privatised water industry |
4574 | Bideford flood plan : public information leaflet |
4575 | Upper Lee catchment management plan : final plan : September 1994 |