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651Analytical method for the determination of acid herbicides in sandstone and chalk aquifer materials (Draft RanD note) P439/9/A
652Summary report on blue-green algae toxin analysis, Toxicity Assessment and reporting to the Environment Agency, 1998
653Micro low flows average and low flows estimation in the SW region : validation of regional version 1.1 software
654Report for Welsh Region on selected flood defence schemes and the development of a standard methodology for risk assessment
655Possible replacements for the biochemical oxygen demand (BOD) test and suspended solids as measures of effluent and water quality
656Audit of priority species of rivers and wetlands : Bittern Botaurus stellaris in South Hampshire and the Isle of Wight
657River Lemon corridor survey : a report prepared by Ecologue for the National Rivers Authority (South West Region)
658Front Cover of A Key to the British Species of Freshwater Cladocera, with Notes on their Ecology
659Report on US study tour of engineered wetlands for the treatment of waste water and mine drainage, March 1992
660Scoping Study For Collaborative R and D Between The Environment Agency And L'agence De L'eau Seine Normandie
661Manor Wall and Landguard Fort sea defences, Felixstowe : part of the Southern Felixstowe coastal strategy option selection scoping consultation document
662Analysis of natural and polluted river communities in Great Britain- Progress report for the period January-December 1987
663Sea trout gene banks : the feasibility of developing and utilising gene banks for sea trout (salmo trutta) conservation
664Micro low flows average and low flow estimation in the SW region : validation of version 1.2 software
665An investigation into the best method to combine national and local data to develop site-specific critical loads
666NRA Thames region : audit surveys 1991/92 : a report on the re-surveys of selected reaches of river following maintenance dredging
667Remote sensing and baseline monitoring of the coastal waters of England and Wales 1992-1993 : a survey report
668The River Conwy catchment management plan : action plan (bilingual) : 1995: Cynllun Gweithrediad Cynllun Rheoli Dalgylch yr Afon Conwy 1995
669Audit of priority species of rivers and wetlands : riverine and wetland molluscs in South Hampshire and the Isle of Wight
670River Glen : river channel assessment : annex B : an analysis of invertebrate records for the River Glen 1976-1991
671Critical review of the proposals for a good practice guide on sustainability appraisal of regional planning guidance (DETR, August 1999)
672Database and atlas of aquatic vascular plants in the British Isles : part 2 : distribution maps (352/2/N and Y)
673Proposed decision for the future regulation of disposals of radioactive waste from british nuclear fuels plc Sellafield : decision document
674Proposed decision for the future regulation of disposals of radioactive waste from British Nuclear fuels plc Sellafield : supporting information
675Contemporary and holocene sediment dynamics of the Walton Backwaters North East Essex : preliminary report and review of progress