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576The development of macroinvertebrate keys using TWINSPAN classification : a manual for NRA biologists (001/10/W) : draft final report
577River Wissey investigations : linking hydrology and ecology : the basis for in-river flow management. Final Draft (OI/526/ )
578Analysis of growth and survival of sea trout from the Welsh Dee: Interim Report, 2nd April 2000
579River Glen : river channel assessment : annex C : an assessment of low flow characteristics of the River Glen, Lincolnshire
580The use of constructed wetlands to ameliorate metal-rich mine waters. Stage 1 : review of existing literature
581The Warwickshire Avon catchment management plan : first annual review : October 1994 - October 1995 (NRA Severn -Trent 45)
582Low flows and water resources : facts on the top 40 low flow rivers in England and Wales
583The protection of East Anglian wetlands Phase 2 : review of BGS draft report. February 1995 (OI 558)
584Environmental assessment of Denver MRF : impact of freshwater flow on water quality of the Great Ouse estuary : draft working paper 3
585Low flows and water resources : facts on the top 40 low flow rivers in England and Wales
586Water wise : are you pouring money down the drain? (Bilingual) : Doeth a dwr : ydych chi'n tywallt arian i lawr y draen?
587Eutrophication in controlled waters in the Warwickshire Avon catchment (final report). Vol 1 : report and executive summary
588East Devon public water supply strategy : the existence and potential use in yield analysis of historic flow records
589NRA response to using water wisely : a consultation paper published by the DoE/Welsh Office July 1992
590An investigation into possible causes of poor water quality at Blakewell Bridge (R30A001) on the Bradiford Water
591An investigation into possible causes of poor water quality at Nymphayes Bridge (R30D009) on the Gissage Lake
592An investigation to determine if Deep Moor Landfill Site is causing an impact downstream in the Peagham Stream
593Torridge data report : biological monitoring of organic inputs to the study catchments using rapid biological assessment keys
594Gorran Haven (Little Perhaver) EC bathing waters directive failure 1996 : an investigation of the Gorran Haven Stream
595Quality of Bathing Waters in Hampshire, Sussex, Kent and the Isle of Wight : 1993 Bathing Season : NRA Report DL/bw4/94
596An audit of performance in the analysis of biological samples in 2000. Environment Agency : AQC audit : C00158/11
597An audit of performance in the analysis of biological samples in 2000. Environment Agency : primary audit : C00158/10
598Development of Environmental Standards (Water Resources) Stage 1: Identification of Hydro-morphological parameters to which the aquatuc ecosystems is sensitive
599Foot and Mouth Disease Epidemic. Disposal of culled stock by burial : guidance and reference data for the protection of controlled waters
600A review of the industrial uses of continuous monitoring systems : incineration processes : a report produced for NCCA and ETSU by Entec