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526A report on the 1992 strategic stock assessment survey of the upper Eden catchment with particular reference to salmonids
527River Darent low flow alleviation. Annex 3 : plan for the Darent : report of the joint NRA/TWUL project team
528Conservation and recreation : the Wye challenge : towards a management strategy for the River Wye : summary report (bilingual)
529Implementation of environmental accounting : the way ahead for a new "green agency" : submitted for the Open University Open Business School MBA
530Regulation guidance and direction making powers in the Environment Act 1995 in relation to the Environment Agency
531Opportunities for change : the Environment Agency's response to the government consultation paper on a revised UK strategy for sustainable development
532An assessment of the impact of Berkhamsted and Maple Lodge STWs on the Grand Union canal based on macroinvertebrate surveys
533An Assessment of Cormorant Depredation on Stillwater Coarse Fish Populations in the Lea and Colne Valleys of the Thames Catchment
534Water framework directive : guiding principles on the technical requirements (summary) : accompanying summary to the Environment Agency consultation document
535A biological investigation of the affects of discharges from Meldon quarry on the West Okemont River - 8/08/89 and 20/09/89
536An investigation into the elevated BOD levels at Brocken Bridge (R30H001) on the Barnstaple Yeo [DEV/E/20/95]
537Options for development of an enhanced team culture in the NRA, using the Welsh Regional Technical Department as an example
538A preliminary investigation into the extent of saline ingress into Curry Moor from the River Tone, January 1994
539Modelling the contribution from non-agricultural sources to nitrate pollution in the Sor Brook (Thames Region) (UC 3134)
540A desk top study into the probable causes of poor water quality at Higher Hollacombe Farm (RO5K013) on the Hollacombe Lake
541Procedure for quality assurance for RIVPACS compatible macro-invertebrate samples analysed to the taxonomic level needed for the BMWP-score system
542Assessment of the Trophic Status of Rivers using Macrophytes - supporting documentation for evaluation of the Mean Trophic Rank
543The Economics of No-Spray Zones - a Study of the Risks and Benefits of Pesticide No-Spray Restrictions
544An audit of performance in the AQC inspection of standard biological macro-invertebrate samples in 2002 : The Environment Agency (C00158/31)
545Analysis of benthic macro-invertebrate samples collected by the NRA during 1989 and 1990 from various habitats in the River Delph
546Biological investigation of the impact of Ivybridge sewage treatment works discharge to the River Erme, May 1991
547An investigation to determine the source of high levels of gamma-HCH in the Newlyn River during summer 1989
548An investigation into high concentrations of atrazine in surface waters and the increase in maize production in the Otter valley
549River Habitat Quality the physical character of rivers and streams in the UK and Isle of Man
550Investigation of flow distribution in a fracture zone at the Stripa mine, using the radar method, results and interpretation