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526Appendix to the biodiversity strategy and action plan for the Environment Agency (Thames Region) : costed action plan 2000-2003
527An investigation of ecological change in the rivers Kennet and Lambourn. Report for the period April 2000 - March 2001
528Modelling the contribution from non-agricultural sources to nitrate pollution in the Sor Brook (Thames Region) (UC 3134)
529Investigation into the 1999 failure of the European Community bathing waters directive at Teignmouth Town Beach (2001)
530Biological investigation of the impact of Ivybridge sewage treatment works discharge to the River Erme, May 1991
531An assessment of cormorant depredation on stillwater coarse fish populations in the Lea and Colne valleys of the Thames catchment
532Evaluation of FRONTIERS accumulation forecasts in the NRA Thames and North West regions : final report of the Joint Met
533The hydrogeological classification of superficial clay : the hydrogeological characterisation of glacial till and glacio-lacustrine sediments in Shropshire
534A Study of the Composition of Collected Household Waste in the United Kingdom - with particular reference to packaging waste
535The Natural (Baseline) Quality Of Groundwaters In England And Wales: The Permo-Triassic Sandstones Of Cumbria, North-West England;
536Rising groundwater levels in the chalk-basal sands aquifer of the Central London Basin. Progress report, March 1995
537An investigation into the elevated BOD levels at Brocken Bridge (R30H001) on the Barnstaple Yeo [DEV/E/20/95]
538Tributyltin in the aquatic environment : final report to the National Rivers Authority September 1990 to September 1992
539A report on the strategic stock assessment survey of the River Esk catchment 1994 with particular reference to salmonids
540An investigation of ecological change in the rivers Kennet and Lambourn. Progress report for the period April 1999-March 2000
541Guidance notes for local planning authorities on the methods of protecting the water environment through development plans
542Report on Grayling research and production in the Anglian region of the National Rivers Authority, December 1988 to April 1989
543Options for transfer of water from the River Trent and reservoir storage at Great Bradley : technical summary of the feasibility report
544A report on the 1992 strategic stock assessment survey of the upper Eden catchment with particular reference to salmonids
545An investigation into the frequency of discharge of three combined sewer overflows in the Afan/Kenfig catchment : TM/EAW/96/06
546Analysis of benthic macro-invertebrate samples collected by the NRA during 1989 and 1990 from various habitats in the River Delph
547A biological investigation of the affects of discharges from Meldon quarry on the West Okemont River - 8/08/89 and 20/09/89
548The development of biomanipulation techniques and control of phosphorus release from sediments (475/1/A) : LIFE project : restoration of the Norfolk Broads
549The application of toxicity-based criteria for the regulatory control of wastewater dicharges Response compendium March 1997
550An investigation into high concentrations of atrazine in surface waters and the increase in maize production in the Otter valley