4551 | Benefit Assessment of Water Quality Improvements |
4552 | Works in, near or liable to affect watercourses |
4553 | Extended Flow Records At Key Locations In England And Wales (Phase 2) |
4554 | Somerset Levels and Moors water level management and nature conservation |
4555 | Protecting and improving the water environment : model policies |
4556 | Post mortem study of otters in England and Wales 1992-2003 |
4557 | The evaluation of a LTH BOM 1 hand-held dissolved oxygen meter (220/25/T) |
4558 | Remedial Treatment Action Data Sheets. Version 1.0 |
4559 | Freshwater biological indicators of pesticide contamination |
4560 | Surface water quality 1990 |
4561 | Evaluating The Benefits Of Hydrometric Networks |
4562 | National Rivers Authority drivers handbook : October 1991, issue 1 |
4563 | Manual of investment appraisal |
4564 | Water pollution incidents in England and Wales - 1990 : report of the National Rivers Authority |
4565 | Regional water resources strategy : Severn-Trent region |
4566 | Guidance notes for local planning authorities on the methods of protecting the water environment through development plans |
4567 | Flood defence guidance for conservation in watercourse maintenance works |
4568 | Interpretation Of Optimisation In The Context Of A Disposal Facility For Long-Lived Radioactive Waste |
4569 | Two year aesthetic survey of beaches in the South West (1990 and 1991) |
4570 | Upper Thames catchment management plan consultation report (draft) November 1994 |
4571 | East Devon public water supply strategy : Exe freshwater model - QUASAR validation/calibration |
4572 | River Medway catchment management plan : phase 1 |
4573 | Risk Assessment Methodology for Determining Nutrient Impacts in Surface Freshwater Bodies |
4574 | MASQ: Monitoring and Assessing Soil Quality in Great Britain. Countryside Survey Module 6: Soils and Pollution |
4575 | Phytoplankton Classification tool for UK Lakes |