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576Regulation guidance and direction making powers in the Environment Act 1995 in relation to the Environment Agency
577Opportunities for change : the Environment Agency's response to the government consultation paper on a revised UK strategy for sustainable development
578An assessment of the impact of Berkhamsted and Maple Lodge STWs on the Grand Union canal based on macroinvertebrate surveys
579An Assessment of Cormorant Depredation on Stillwater Coarse Fish Populations in the Lea and Colne Valleys of the Thames Catchment
580Water framework directive : guiding principles on the technical requirements (summary) : accompanying summary to the Environment Agency consultation document
581A biological investigation of the affects of discharges from Meldon quarry on the West Okemont River - 8/08/89 and 20/09/89
582An investigation into the bacterial water quality of the River Umber, N. Devon : December 1996 : DEV/WQ/14/96
583An investigation into the elevated BOD levels at Brocken Bridge (R30H001) on the Barnstaple Yeo [DEV/E/20/95]
584An investigation to determine if Great Torrington STW is the cause of elevated copper and zinc concentrations in the River Torridge
585Options for development of an enhanced team culture in the NRA, using the Welsh Regional Technical Department as an example
586A preliminary investigation into the extent of saline ingress into Curry Moor from the River Tone, January 1994
587A report on the infaunal communities within Weston Bay in relation to the sewage outfall at Black Rock
588Bioccumulation of halogenated compounds by limpets and fucoid seaweeds in the vicinity by the Black Rock sewage outfall, Weston-Super-Mare
589Modelling the contribution from non-agricultural sources to nitrate pollution in the Sor Brook (Thames Region) (UC 3134)
590A desk top study into the probable causes of poor water quality at Higher Hollacombe Farm (RO5K013) on the Hollacombe Lake
591Health effects of sea bathing (WMI 9021) - Phase III final report to the Department of the Environment
592Procedure for quality assurance for RIVPACS compatible macro-invertebrate samples analysed to the taxonomic level needed for the BMWP-score system
593Assessment of the Trophic Status of Rivers using Macrophytes - supporting documentation for evaluation of the Mean Trophic Rank
594The Economics of No-Spray Zones - a Study of the Risks and Benefits of Pesticide No-Spray Restrictions
595An audit of performance in the AQC inspection of standard biological macro-invertebrate samples in 2002 : The Environment Agency (C00158/31)
596Analysis of benthic macro-invertebrate samples collected by the NRA during 1989 and 1990 from various habitats in the River Delph
597Biological investigation of the impact of Ivybridge sewage treatment works discharge to the River Erme, May 1991
598Final report of the controlled cohort investigations into the health effects of bathing in sewage contaminated coastal waters
599An investigation into high concentrations of atrazine in surface waters and the increase in maize production in the Otter valley
600River Habitat Quality the physical character of rivers and streams in the UK and Isle of Man