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951Developing Quality Assurance for Fish Counter Data - Phase 1: An Assessment of the Salmonid Fish Counter Network in England and Wales
952Thames estuary benthic programme : a site by site report on the results of macroinvertebrate surveys undertaken during 1990-91
953Investigating the feasibility of using neural networks to derive chlorophyll a prediction algorithms for case 2 waters
954The development of macroinvertebrate keys using TWINSPAN classification : a manual for NRA biologists (001/10/W) : draft final report
955NRA response to using water wisely : a consultation paper published by the DoE/Welsh Office July 1992
956Environmental Impacts of Alkylphenol Ethoxylates and Carboxylates. Part 1 Proposals for the Development of Environmental Quality Standards
957Investigating the effect of changing retention time in natural and artificial water bodies: Simulations using PROTECH-D
958Audit of priority species of rivers and wetlands : kingfisher Alcedo atthis in South Hampshire and the Isle of Wight
959Water quality modelling in the Environment Agency (Report no.28) : present practice and future challenges : Water Quality Modelling Group workshop proceedings
960The Menai Strait catchment management plan : action plan (bilingual) : Cynllun Rheoli Dalgylch Afon Menai; 1995 Cynllun Gweithredu
961Micro low flows average and low flow estimation in the SW region : validation of version 1.2 software
962Analytical method for the determination of acid herbicides in sandstone and chalk aquifer materials (Draft RanD note) P439/9/A
963Remote sensing and baseline monitoring of the coastal waters of England and Wales 1992-1993 : a survey report [external version]
964An investigation into the best method to combine national and local data to develop site-specific critical loads
965Summary report on blue-green algae toxin analysis, Toxicity Assessment and reporting to the Environment Agency, 1998
966NRA Thames region : audit surveys 1991/92 : a report on the re-surveys of selected reaches of river following maintenance dredging
967EU Habitats and Birds Directives. Guidance for the review of Environment Agency permissions: determining relevant permissions and "significant effect"
968Water wise : are you pouring money down the drain? (Bilingual) : Doeth a dwr : ydych chi'n tywallt arian i lawr y draen?
969Anglian radar information project : report no. 5 : quantitative precipitation estimation with weather radar : problems and solutions for the National Rivers Authority
970The use of constructed wetlands to ameliorate metal-rich mine waters. Stage 1 : review of existing literature
971Algal growth in the impounded waters of a proposed barrage at Cardiff Bay : prediction using 1989 data
972Critical review of the proposals for a good practice guide on sustainability appraisal of regional planning guidance (DETR, August 1999)
973The FBA-Welsh Water simulation model of phytoplankton dynamics in flushed systems. Authentication in a coastal lagoon
974Audit of priority species of rivers and wetlands : Black Bog in South Hampshire and the Isle of Wight
975Database and atlas of aquatic vascular plants in the British Isles : part 2 : distribution maps (352/2/N and Y)