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401Chemical river quality 1993-1995 according to the general quality assessment (GQA) scheme [map] : scale 1 : 750 000
402The development of macroinvertebrate keys using TWINSPAN classification : a manual for NRA biologists (001/10/W) : draft final report
403Audit of priority species of rivers and wetlands : kingfisher Alcedo atthis in South Hampshire and the Isle of Wight
404East Devon public water supply strategy : the existence and potential use in yield analysis of historic flow records
405An investigation into possible causes of poor water quality at Nymphayes Bridge (R30D009) on the Gissage Lake
406Micro low flows average and low flows estimation in the SW region : validation of regional version 1.1 software
407Audit of priority species of rivers and wetlands : Bittern Botaurus stellaris in South Hampshire and the Isle of Wight
408River Lemon corridor survey : a report prepared by Ecologue for the National Rivers Authority (South West Region)
409Audit of priority species of rivers and wetlands : white-clawed crayfish Austropotambius pallipes in South Hampshire and the Isle of Wight
410Investigation into failures of the River Dalch from Canns Mill Bridge to below Lapford sewage treatment works (2001)
411Graphical representation of certain metals and organics concentrations versus flow rates for some of the rivers in Districts 3 and 6
412The Blythe/Cole/Bourne catchment management plan : first annual review : July 1994 to July 1995 (NRA Severn-Trent 48)
413Eutrophication in controlled waters in the Warwickshire Avon catchment (final report). Vol 1 : report and executive summary
414Analysis of natural and polluted river communities in Great Britain- Progress report for the period January-December 1987
415Low flows and water resources : facts on the top 40 low flow rivers in England and Wales
416Micro low flows average and low flow estimation in the SW region : validation of version 1.2 software
417Development of Environmental Standards (Water Resources) Stage 1: Identification of Hydro-morphological parameters to which the aquatuc ecosystems is sensitive
418Audit of priority species of rivers and wetlands : riverine and wetland molluscs in South Hampshire and the Isle of Wight
419River Glen : river channel assessment : annex B : an analysis of invertebrate records for the River Glen 1976-1991
420Torridge data report : biological monitoring of organic inputs to the study catchments using rapid biological assessment keys
421An audit of performance in the analysis of biological samples in 2000. Environment Agency : primary audit : C00158/10
422River Stour (2), Sudbury : report of a river corridor survey carried out for the National Rivers Authority, Anglian region
423An audit of performance in the analysis of biological samples in 2000. Environment Agency : AQC audit : C00158/11
424Mercury and methylmercury in the river Yare, Norfolk (1986 - 1992) (OI/420/8/A annex) : annex to main report
425Low flows and water resources : facts on the top 40 low flow rivers in England and Wales