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426A desk study of the available information on wintering waterfowl feeding in the Wash, Lincolnshire and Norfolk
427A Study of the Composition of Collected Household Waste in the United Kingdom - with particular reference to packaging waste
428Rising groundwater levels in the chalk-basal sands aquifer of the Central London Basin. Progress report, March 1995
429Tributyltin in the aquatic environment : final report to the National Rivers Authority September 1990 to September 1992
430A report on the strategic stock assessment survey of the River Esk catchment 1994 with particular reference to salmonids
431An investigation of ecological change in the rivers Kennet and Lambourn. Progress report for the period April 1999-March 2000
432Report on the quality of bathing waters in Hampshire, Sussex, Kent and the Isle of Wight : 1992 bathing season
433Guidance notes for local planning authorities on the methods of protecting the water environment through development plans
434Report on Grayling research and production in the Anglian region of the National Rivers Authority, December 1988 to April 1989
435The development of biomanipulation techniques and control of phosphorus release from sediments (475/1/A) : LIFE project : restoration of the Norfolk Broads
436The application of toxicity-based criteria for the regulatory control of wastewater dicharges Response compendium March 1997
437Rising groundwater levels in the chalk-basal sands aquifer of the Central London Basin. Progress report, March 1996
438Preliminary modelling of water storage and transfers in the Anglian region : supporting documentation for the regional water resources strategy May 1993
439Water quality objectives: procedures used by the NRA for the purpose of surface waters river ecosystem) (classification) regulations 1994
440Mercury, methylmercury and copper in the River Yare, Norfolk : summary of a report to the National Rivers Authority, Anglian Region
441A report on the 1992 strategic stock assessment survey of the upper Eden catchment with particular reference to salmonids
442River Darent low flow alleviation. Annex 3 : plan for the Darent : report of the joint NRA/TWUL project team
443An assessment of the impact of Berkhamsted and Maple Lodge STWs on the Grand Union canal based on macroinvertebrate surveys
444An Assessment of Cormorant Depredation on Stillwater Coarse Fish Populations in the Lea and Colne Valleys of the Thames Catchment
445Water framework directive : guiding principles on the technical requirements (summary) : accompanying summary to the Environment Agency consultation document
446A biological investigation of the affects of discharges from Meldon quarry on the West Okemont River - 8/08/89 and 20/09/89
447An investigation into the elevated BOD levels at Brocken Bridge (R30H001) on the Barnstaple Yeo [DEV/E/20/95]
448An investigation to determine if Great Torrington STW is the cause of elevated copper and zinc concentrations in the River Torridge
449Options for development of an enhanced team culture in the NRA, using the Welsh Regional Technical Department as an example
450A preliminary investigation into the extent of saline ingress into Curry Moor from the River Tone, January 1994