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526Analysis of growth and survival of sea trout from the Welsh Dee: Interim Report, 2nd April 2000
527An audit of performance in the analysis of biological samples in 2000. Environment Agency : primary audit : C00158/10
528Low flows and water resources : facts on the top 40 low flow rivers in England and Wales
529Chemical river quality 1993-1995 according to the general quality assessment (GQA) scheme [map] : scale 1 : 750 000
530Foot and Mouth Disease Epidemic. Disposal of culled stock by burial : guidance and reference data for the protection of controlled waters
531Water resources for the future : a strategy for Wales (Bilingual) : Adnoddau dwr ar gyfer y dyfodol (Bilingual)
532NRA guidance on the acceptable leachable values for contaminated material to be deposited in Upper Tame catchment
533River Glen : river channel assessment : annex C : an assessment of low flow characteristics of the River Glen, Lincolnshire
534The development of macroinvertebrate keys using TWINSPAN classification : a manual for NRA biologists (001/10/W) : draft final report
535NRA response to using water wisely : a consultation paper published by the DoE/Welsh Office July 1992
536Environmental Impacts of Alkylphenol Ethoxylates and Carboxylates. Part 1 Proposals for the Development of Environmental Quality Standards
537Investigating the effect of changing retention time in natural and artificial water bodies: Simulations using PROTECH-D
538Torridge data report : biological monitoring of organic inputs to the study catchments using rapid biological assessment keys
539An investigation into the presence of high levels of cadmium in sea-water samples from Mounts Bay, Cornwall
540Water quality modelling in the Environment Agency (Report no.28) : present practice and future challenges : Water Quality Modelling Group workshop proceedings
541The Blythe/Cole/Bourne catchment management plan : first annual review : July 1994 to July 1995 (NRA Severn-Trent 48)
542Environmental assessment of Denver MRF : impact of freshwater flow on water quality of the Great Ouse estuary : draft working paper 3
543Local Environment Agency plan for the West Midlands Tame, 2nd annual review, July 2001 : local environment focus
544Water wise : are you pouring money down the drain? (Bilingual) : Doeth a dwr : ydych chi'n tywallt arian i lawr y draen?
545The use of constructed wetlands to ameliorate metal-rich mine waters. Stage 1 : review of existing literature
546Further monitoring of the impact of Crown Dale waste water treatment works final effluent on water quality
547An investigation into possible causes of poor water quality at Nymphayes Bridge (R30D009) on the Gissage Lake
548The FBA-Welsh Water simulation model of phytoplankton dynamics in flushed systems. Authentication in a coastal lagoon
549The protection of East Anglian wetlands Phase 2 : review of BGS draft report. February 1995 (OI 558)
550The use of constructed wetlands to ameliorate metal-rich mine waters. Stage 1 : study of natural wetlands