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4651Benefit Assessment of Water Quality Improvements
4652Works in, near or liable to affect watercourses
4653Extended Flow Records At Key Locations In England And Wales (Phase 2)
4654River Culm fisheries survey 1994
4655Somerset Levels and Moors water level management and nature conservation
4656Protecting and improving the water environment : model policies
4657Time of travel of pollutants study : River Taw : Q22/Q25
4658East Hampshire catchment management plan : consultation report
4659Post mortem study of otters in England and Wales 1992-2003
4660The evaluation of a LTH BOM 1 hand-held dissolved oxygen meter (220/25/T)
4661Remedial Treatment Action Data Sheets. Version 1.0
4662Less sensitive areas and candidate high natural dispersion areas in the North West region
4663Objectives for rivers and canals and river water quality 1992
4664Freshwater biological indicators of pesticide contamination
4665Surface water quality 1990
4666Evaluating The Benefits Of Hydrometric Networks
4667National Rivers Authority drivers handbook : October 1991, issue 1
4668Manual of investment appraisal
4669Water pollution incidents in England and Wales - 1990 : report of the National Rivers Authority
4670Regional water resources strategy : Severn-Trent region
4671Guidance notes for local planning authorities on the methods of protecting the water environment through development plans
4672Flood defence guidance for conservation in watercourse maintenance works
4673Interpretation Of Optimisation In The Context Of A Disposal Facility For Long-Lived Radioactive Waste
4674Two year aesthetic survey of beaches in the South West (1990 and 1991)
4675Upper Thames catchment management plan consultation report (draft) November 1994