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451Report on Grayling research and production in the Anglian region of the National Rivers Authority, December 1988 to April 1989
452The development of biomanipulation techniques and control of phosphorus release from sediments (475/1/A) : LIFE project : restoration of the Norfolk Broads
453The application of toxicity-based criteria for the regulatory control of wastewater dicharges Response compendium March 1997
454Rising groundwater levels in the chalk-basal sands aquifer of the Central London Basin. Progress report, March 1996
455Preliminary modelling of water storage and transfers in the Anglian region : supporting documentation for the regional water resources strategy May 1993
456Water quality objectives: procedures used by the NRA for the purpose of surface waters river ecosystem) (classification) regulations 1994
457Mercury, methylmercury and copper in the River Yare, Norfolk : summary of a report to the National Rivers Authority, Anglian Region
458River Darent low flow alleviation. Annex 3 : plan for the Darent : report of the joint NRA/TWUL project team
459Conservation and recreation : the Wye challenge : towards a management strategy for the River Wye : summary report (bilingual)
460Implementation of environmental accounting : the way ahead for a new "green agency" : submitted for the Open University Open Business School MBA
461Regulation guidance and direction making powers in the Environment Act 1995 in relation to the Environment Agency
462Opportunities for change : the Environment Agency's response to the government consultation paper on a revised UK strategy for sustainable development
463An assessment of the impact of Berkhamsted and Maple Lodge STWs on the Grand Union canal based on macroinvertebrate surveys
464An Assessment of Cormorant Depredation on Stillwater Coarse Fish Populations in the Lea and Colne Valleys of the Thames Catchment
465Water framework directive : guiding principles on the technical requirements (summary) : accompanying summary to the Environment Agency consultation document
466Options for development of an enhanced team culture in the NRA, using the Welsh Regional Technical Department as an example
467Modelling the contribution from non-agricultural sources to nitrate pollution in the Sor Brook (Thames Region) (UC 3134)
468Health effects of sea bathing (WMI 9021) - Phase III final report to the Department of the Environment
469Procedure for quality assurance for RIVPACS compatible macro-invertebrate samples analysed to the taxonomic level needed for the BMWP-score system
470Assessment of the Trophic Status of Rivers using Macrophytes - supporting documentation for evaluation of the Mean Trophic Rank
471The Economics of No-Spray Zones - a Study of the Risks and Benefits of Pesticide No-Spray Restrictions
472An audit of performance in the AQC inspection of standard biological macro-invertebrate samples in 2002 : The Environment Agency (C00158/31)
473Analysis of benthic macro-invertebrate samples collected by the NRA during 1989 and 1990 from various habitats in the River Delph
474Biological investigation of the impact of Ivybridge sewage treatment works discharge to the River Erme, May 1991
475An investigation into high concentrations of atrazine in surface waters and the increase in maize production in the Otter valley