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501The hydrogeological classification of superficial clay : the hydrogeological characterisation of glacial till and glacio-lacustrine sediments in Shropshire
502A desk study of the available information on wintering waterfowl feeding in the Wash, Lincolnshire and Norfolk
503A Study of the Composition of Collected Household Waste in the United Kingdom - with particular reference to packaging waste
504Tributyltin in the aquatic environment : final report to the National Rivers Authority September 1990 to September 1992
505A report on the strategic stock assessment survey of the River Esk catchment 1994 with particular reference to salmonids
506An investigation of ecological change in the rivers Kennet and Lambourn. Progress report for the period April 1999-March 2000
507Guidance notes for local planning authorities on the methods of protecting the water environment through development plans
508Report on Grayling research and production in the Anglian region of the National Rivers Authority, December 1988 to April 1989
509The development of biomanipulation techniques and control of phosphorus release from sediments (475/1/A) : LIFE project : restoration of the Norfolk Broads
510The application of toxicity-based criteria for the regulatory control of wastewater dicharges Response compendium March 1997
511Rising groundwater levels in the chalk-basal sands aquifer of the Central London Basin. Progress report, March 1996
512Continuous water quality monitoring results collected from the river Torridge at Cockshilhay and Beam Bridge for the EU UWWTD
513Water quality objectives: procedures used by the NRA for the purpose of surface waters river ecosystem) (classification) regulations 1994
514Mercury, methylmercury and copper in the River Yare, Norfolk : summary of a report to the National Rivers Authority, Anglian Region
515Second interim report on the environmental impacts of the drought on Yorkshire's rivers April 1995 to April 1996
516Interim report on the environmental impacts of the drought on Yorkshire rivers April 1995 to April 1996
517A report on the 1992 strategic stock assessment survey of the upper Eden catchment with particular reference to salmonids
518River Darent low flow alleviation. Annex 3 : plan for the Darent : report of the joint NRA/TWUL project team
519Conservation and recreation : the Wye challenge : towards a management strategy for the River Wye : summary report (bilingual)
520Implementation of environmental accounting : the way ahead for a new "green agency" : submitted for the Open University Open Business School MBA
521Regulation guidance and direction making powers in the Environment Act 1995 in relation to the Environment Agency
522Opportunities for change : the Environment Agency's response to the government consultation paper on a revised UK strategy for sustainable development
523An assessment of the impact of Berkhamsted and Maple Lodge STWs on the Grand Union canal based on macroinvertebrate surveys
524An Assessment of Cormorant Depredation on Stillwater Coarse Fish Populations in the Lea and Colne Valleys of the Thames Catchment
525Water framework directive : guiding principles on the technical requirements (summary) : accompanying summary to the Environment Agency consultation document