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476Report on Grayling research and production in the Anglian region of the National Rivers Authority, December 1988 to April 1989
477The development of biomanipulation techniques and control of phosphorus release from sediments (475/1/A) : LIFE project : restoration of the Norfolk Broads
478The application of toxicity-based criteria for the regulatory control of wastewater dicharges Response compendium March 1997
479Rising groundwater levels in the chalk-basal sands aquifer of the Central London Basin. Progress report, March 1996
480Preliminary modelling of water storage and transfers in the Anglian region : supporting documentation for the regional water resources strategy May 1993
481Continuous water quality monitoring results collected from the river Torridge at Cockshilhay and Beam Bridge for the EU UWWTD
482Water quality objectives: procedures used by the NRA for the purpose of surface waters river ecosystem) (classification) regulations 1994
483Mercury, methylmercury and copper in the River Yare, Norfolk : summary of a report to the National Rivers Authority, Anglian Region
484Second interim report on the environmental impacts of the drought on Yorkshire's rivers April 1995 to April 1996
485Interim report on the environmental impacts of the drought on Yorkshire rivers April 1995 to April 1996
486A report on the 1992 strategic stock assessment survey of the upper Eden catchment with particular reference to salmonids
487River Darent low flow alleviation. Annex 3 : plan for the Darent : report of the joint NRA/TWUL project team
488Conservation and recreation : the Wye challenge : towards a management strategy for the River Wye : summary report (bilingual)
489Implementation of environmental accounting : the way ahead for a new "green agency" : submitted for the Open University Open Business School MBA
490Regulation guidance and direction making powers in the Environment Act 1995 in relation to the Environment Agency
491Opportunities for change : the Environment Agency's response to the government consultation paper on a revised UK strategy for sustainable development
492An Assessment of Cormorant Depredation on Stillwater Coarse Fish Populations in the Lea and Colne Valleys of the Thames Catchment
493Water framework directive : guiding principles on the technical requirements (summary) : accompanying summary to the Environment Agency consultation document
494A biological investigation of the affects of discharges from Meldon quarry on the West Okemont River - 8/08/89 and 20/09/89
495An investigation into the bacterial water quality of the River Umber, N. Devon : December 1996 : DEV/WQ/14/96
496An investigation into the elevated BOD levels at Brocken Bridge (R30H001) on the Barnstaple Yeo [DEV/E/20/95]
497An investigation to determine if Great Torrington STW is the cause of elevated copper and zinc concentrations in the River Torridge
498Options for development of an enhanced team culture in the NRA, using the Welsh Regional Technical Department as an example
499A preliminary investigation into the extent of saline ingress into Curry Moor from the River Tone, January 1994
500A report on the infaunal communities within Weston Bay in relation to the sewage outfall at Black Rock