4601 | Evaluation of the effectiveness of the Water Fringe Option Scheme on Environmental Quality |
4602 | Monitoring of rivers and effluents |
4603 | Environmental Protection Act 1990 Best Practical Environmental Option and Other Assessment Methods: Case Study Comparisons |
4604 | The River Conwy catchment management plan : action plan (bilingual) : 1995: Cynllun Gweithrediad Cynllun Rheoli Dalgylch yr Afon Conwy 1995 |
4605 | Impact assessment of Meldon quarry on water quality in the West Okement river |
4606 | River Strat catchment river water quality classification 1991 |
4607 | Report on the quality of bathing waters 1990 |
4608 | Isle of Wight catchment management plan : consultation report |
4609 | Spring Carp Mortality Syndrome (SCMS) Transmission Study |
4610 | River catchment management plans : data report |
4611 | Hampshire salmon investigation report on salmon radio tracking 1991 |
4612 | Focus on Biodiversity Update 2002 |
4613 | R and D Strategy to Support Implementation of the Water Framework Directive - Preliminary Scoping Report |
4614 | River Corridor Surveys
|
4615 | Technical services available to NRA staff |
4616 | Land drainage consent report : investigation of the conservation input into land drainage consents |
4617 | Regional water resource review |
4618 | Guidance on the Assessment of Cause and Effect in Ecological Risk Assessment |
4619 | Flood defence levels of service : stage 2 annex B (Note 127) : land use assessment |
4620 | The rehabilitation of the River Taff |
4621 | Electron Microscope Image: Filament of Oscillatoria being ingested by the ciliate Nassula tumida |
4622 | The government's policy for a public regulatory body in a privatised water industry |
4623 | Bideford flood plan : public information leaflet |
4624 | Upper Lee catchment management plan : final plan : September 1994 |
4625 | Restoration of Riverine Trout Habitats - A Guidance Manual |