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476The development of biomanipulation techniques and control of phosphorus release from sediments (475/1/A) : LIFE project : restoration of the Norfolk Broads
477The application of toxicity-based criteria for the regulatory control of wastewater dicharges Response compendium March 1997
478Rising groundwater levels in the chalk-basal sands aquifer of the Central London Basin. Progress report, March 1996
479Preliminary modelling of water storage and transfers in the Anglian region : supporting documentation for the regional water resources strategy May 1993
480Continuous water quality monitoring results collected from the river Torridge at Cockshilhay and Beam Bridge for the EU UWWTD
481Water quality objectives: procedures used by the NRA for the purpose of surface waters river ecosystem) (classification) regulations 1994
482Mercury, methylmercury and copper in the River Yare, Norfolk : summary of a report to the National Rivers Authority, Anglian Region
483Second interim report on the environmental impacts of the drought on Yorkshire's rivers April 1995 to April 1996
484Interim report on the environmental impacts of the drought on Yorkshire rivers April 1995 to April 1996
485River Darent low flow alleviation. Annex 3 : plan for the Darent : report of the joint NRA/TWUL project team
486Conservation and recreation : the Wye challenge : towards a management strategy for the River Wye : summary report (bilingual)
487Implementation of environmental accounting : the way ahead for a new "green agency" : submitted for the Open University Open Business School MBA
488Regulation guidance and direction making powers in the Environment Act 1995 in relation to the Environment Agency
489Opportunities for change : the Environment Agency's response to the government consultation paper on a revised UK strategy for sustainable development
490Water framework directive : guiding principles on the technical requirements (summary) : accompanying summary to the Environment Agency consultation document
491A biological investigation of the affects of discharges from Meldon quarry on the West Okemont River - 8/08/89 and 20/09/89
492An investigation into the elevated BOD levels at Brocken Bridge (R30H001) on the Barnstaple Yeo [DEV/E/20/95]
493An investigation to determine if Great Torrington STW is the cause of elevated copper and zinc concentrations in the River Torridge
494Options for development of an enhanced team culture in the NRA, using the Welsh Regional Technical Department as an example
495A preliminary investigation into the extent of saline ingress into Curry Moor from the River Tone, January 1994
496Modelling the contribution from non-agricultural sources to nitrate pollution in the Sor Brook (Thames Region) (UC 3134)
497A desk top study into the probable causes of poor water quality at Higher Hollacombe Farm (RO5K013) on the Hollacombe Lake
498Procedure for quality assurance for RIVPACS compatible macro-invertebrate samples analysed to the taxonomic level needed for the BMWP-score system
499Assessment of the Trophic Status of Rivers using Macrophytes - supporting documentation for evaluation of the Mean Trophic Rank
500The Economics of No-Spray Zones - a Study of the Risks and Benefits of Pesticide No-Spray Restrictions