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676The 1990 river and estuary classification survey of England and Wales
677The evaluation of an orion ammonium ion selective electrode (220/15/T)
678An Independent Review of the Defra/EA Research and Development Joint
679Anthropogenic Impacts on the Hydrology of Rivers and Lochs
680Dissemination of the Revitalised FEH Rainfall-runoff Method
681General guide to the prevention of water pollution
682Guidance for the Development of Housing on Land Affected by Contamination
683Guidance on the use of Soil Screening Values for Ecological Risk Assessment
684Highway runoff: Effects of soluble pollutants on the ecology of receiving waters
685Life cycle assessment of disposable and reusable nappies in the UK
686Managing the social aspects of flooding: Synthesis Report
687Model For Investigating The Impacts Of Groundwater Abstraction
688National guidelines for the production of NRA regions 1990/91 regional plans
689Operational mechanisms for the protection and enhancement of headwaters
690Policy and practice for the protection of groundwater : regional appendix Welsh region
691Procurement legislation and the NRA : a brief guide
692Strategic review of development and flood risk : the River Welland catchment
693Strategic review of development and flood risk : the River Witham catchment
694Survey of copper speciation in the Great Ouse estuary
695Sustainable development indicators : monitoring change in the East Midlands
696Technical Support Materials for the Regulation of Radioactively Contaminated Land
697The impact of climate change on severe droughts: Implications for decision making
698The Impact of Grazing and Upland Management on Erosion and Runoff
699The Potential For Generating Hydro-Electricity From Weirs
700The Potential For Aquifer Storage And Recovery In England And Wales