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501Water quality objectives: procedures used by the NRA for the purpose of surface waters river ecosystem) (classification) regulations 1994
502Mercury, methylmercury and copper in the River Yare, Norfolk : summary of a report to the National Rivers Authority, Anglian Region
503Second interim report on the environmental impacts of the drought on Yorkshire's rivers April 1995 to April 1996
504Interim report on the environmental impacts of the drought on Yorkshire rivers April 1995 to April 1996
505A report on the 1992 strategic stock assessment survey of the upper Eden catchment with particular reference to salmonids
506River Darent low flow alleviation. Annex 3 : plan for the Darent : report of the joint NRA/TWUL project team
507Conservation and recreation : the Wye challenge : towards a management strategy for the River Wye : summary report (bilingual)
508Implementation of environmental accounting : the way ahead for a new "green agency" : submitted for the Open University Open Business School MBA
509Regulation guidance and direction making powers in the Environment Act 1995 in relation to the Environment Agency
510Opportunities for change : the Environment Agency's response to the government consultation paper on a revised UK strategy for sustainable development
511An Assessment of Cormorant Depredation on Stillwater Coarse Fish Populations in the Lea and Colne Valleys of the Thames Catchment
512Water framework directive : guiding principles on the technical requirements (summary) : accompanying summary to the Environment Agency consultation document
513A biological investigation of the affects of discharges from Meldon quarry on the West Okemont River - 8/08/89 and 20/09/89
514An investigation into the bacterial water quality of the River Umber, N. Devon : December 1996 : DEV/WQ/14/96
515An investigation into the elevated BOD levels at Brocken Bridge (R30H001) on the Barnstaple Yeo [DEV/E/20/95]
516An investigation to determine if Great Torrington STW is the cause of elevated copper and zinc concentrations in the River Torridge
517Options for development of an enhanced team culture in the NRA, using the Welsh Regional Technical Department as an example
518A preliminary investigation into the extent of saline ingress into Curry Moor from the River Tone, January 1994
519A report on the infaunal communities within Weston Bay in relation to the sewage outfall at Black Rock
520Bioccumulation of halogenated compounds by limpets and fucoid seaweeds in the vicinity by the Black Rock sewage outfall, Weston-Super-Mare
521Modelling the contribution from non-agricultural sources to nitrate pollution in the Sor Brook (Thames Region) (UC 3134)
522A desk top study into the probable causes of poor water quality at Higher Hollacombe Farm (RO5K013) on the Hollacombe Lake
523Health effects of sea bathing (WMI 9021) - Phase III final report to the Department of the Environment
524Procedure for quality assurance for RIVPACS compatible macro-invertebrate samples analysed to the taxonomic level needed for the BMWP-score system
525Assessment of the Trophic Status of Rivers using Macrophytes - supporting documentation for evaluation of the Mean Trophic Rank