401 | An investigation of ecological change in the rivers Kennet and Lambourn. Report for the period April 2000 - March 2001 |
402 | Investigation into the 1999 failure of the European Community bathing waters directive at Teignmouth Town Beach (2001) |
403 | An assessment of cormorant depredation on stillwater coarse fish populations in the Lea and Colne valleys of the Thames catchment |
404 | A review of the quality and status of the Suffolk and Essex estuaries and coastal waters : volume 2 : final draft |
405 | The hydrogeological classification of superficial clay : the hydrogeological characterisation of glacial till and glacio-lacustrine sediments in Shropshire |
406 | A desk study of the available information on wintering waterfowl feeding in the Wash, Lincolnshire and Norfolk |
407 | A Study of the Composition of Collected Household Waste in the United Kingdom - with particular reference to packaging waste |
408 | Rising groundwater levels in the chalk-basal sands aquifer of the Central London Basin. Progress report, March 1995 |
409 | An investigation of ecological change in the rivers Kennet and Lambourn. Progress report for the period April 1999-March 2000 |
410 | Report on the quality of bathing waters in Hampshire, Sussex, Kent and the Isle of Wight : 1992 bathing season |
411 | Guidance notes for local planning authorities on the methods of protecting the water environment through development plans |
412 | The development of biomanipulation techniques and control of phosphorus release from sediments (475/1/A) : LIFE project : restoration of the Norfolk Broads |
413 | The application of toxicity-based criteria for the regulatory control of wastewater dicharges Response compendium March 1997 |
414 | Rising groundwater levels in the chalk-basal sands aquifer of the Central London Basin. Progress report, March 1996 |
415 | Continuous water quality monitoring results collected from the river Torridge at Cockshilhay and Beam Bridge for the EU UWWTD |
416 | Water quality objectives: procedures used by the NRA for the purpose of surface waters river ecosystem) (classification) regulations 1994 |
417 | Interim report on the environmental impacts of the drought on Yorkshire rivers April 1995 to April 1996 |
418 | River Darent low flow alleviation. Annex 3 : plan for the Darent : report of the joint NRA/TWUL project team |
419 | Conservation and recreation : the Wye challenge : towards a management strategy for the River Wye : summary report (bilingual) |
420 | An assessment of the impact of Berkhamsted and Maple Lodge STWs on the Grand Union canal based on macroinvertebrate surveys |
421 | An Assessment of Cormorant Depredation on Stillwater Coarse Fish Populations in the Lea and Colne Valleys of the Thames Catchment |
422 | Water framework directive : guiding principles on the technical requirements (summary) : accompanying summary to the Environment Agency consultation document |
423 | An investigation to determine if Great Torrington STW is the cause of elevated copper and zinc concentrations in the River Torridge |
424 | Options for development of an enhanced team culture in the NRA, using the Welsh Regional Technical Department as an example |
425 | Modelling the contribution from non-agricultural sources to nitrate pollution in the Sor Brook (Thames Region) (UC 3134) |