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551A report on the strategic stock assessment survey of the River Esk catchment 1994 with particular reference to salmonids
552An investigation of ecological change in the rivers Kennet and Lambourn. Progress report for the period April 1999-March 2000
553Report on the quality of bathing waters in Hampshire, Sussex, Kent and the Isle of Wight : 1992 bathing season
554Guidance notes for local planning authorities on the methods of protecting the water environment through development plans
555Report on Grayling research and production in the Anglian region of the National Rivers Authority, December 1988 to April 1989
556The development of biomanipulation techniques and control of phosphorus release from sediments (475/1/A) : LIFE project : restoration of the Norfolk Broads
557The application of toxicity-based criteria for the regulatory control of wastewater dicharges Response compendium March 1997
558Rising groundwater levels in the chalk-basal sands aquifer of the Central London Basin. Progress report, March 1996
559Preliminary modelling of water storage and transfers in the Anglian region : supporting documentation for the regional water resources strategy May 1993
560Continuous water quality monitoring results collected from the river Torridge at Cockshilhay and Beam Bridge for the EU UWWTD
561Water quality objectives: procedures used by the NRA for the purpose of surface waters river ecosystem) (classification) regulations 1994
562Second interim report on the environmental impacts of the drought on Yorkshire's rivers April 1995 to April 1996
563Interim report on the environmental impacts of the drought on Yorkshire rivers April 1995 to April 1996
564A report on the 1992 strategic stock assessment survey of the upper Eden catchment with particular reference to salmonids
565River Darent low flow alleviation. Annex 3 : plan for the Darent : report of the joint NRA/TWUL project team
566Conservation and recreation : the Wye challenge : towards a management strategy for the River Wye : summary report (bilingual)
567Implementation of environmental accounting : the way ahead for a new "green agency" : submitted for the Open University Open Business School MBA
568Regulation guidance and direction making powers in the Environment Act 1995 in relation to the Environment Agency
569Opportunities for change : the Environment Agency's response to the government consultation paper on a revised UK strategy for sustainable development
570An assessment of the impact of Berkhamsted and Maple Lodge STWs on the Grand Union canal based on macroinvertebrate surveys
571An Assessment of Cormorant Depredation on Stillwater Coarse Fish Populations in the Lea and Colne Valleys of the Thames Catchment
572Water framework directive : guiding principles on the technical requirements (summary) : accompanying summary to the Environment Agency consultation document
573A biological investigation of the affects of discharges from Meldon quarry on the West Okemont River - 8/08/89 and 20/09/89
574An investigation into the bacterial water quality of the River Umber, N. Devon : December 1996 : DEV/WQ/14/96
575An investigation into the elevated BOD levels at Brocken Bridge (R30H001) on the Barnstaple Yeo [DEV/E/20/95]