| 251 | Discharge consents and compliance : the NRA's approach to control of discharges to water |
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| 252 | Aldrin and dieldrin concentrations in the Newlyn catchment during 1991 an interim report |
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| 253 | A review of the industrial uses of continuous monitoring systems : minerals industry processes |
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| 254 | Herbicides for use in or near the aquatic environment: Priorities for Environmental Quality Standards Development |
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| 255 | Direct toxicity assessment : a step towards better environmental protection within the UK : business strategy |
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| 256 | An evaluation of discharge and consent compliance policy : a blueprint for the future |
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| 257 | An evaluation of discharge and consent compliance policy : a blueprint for the future : letters from respondents |
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| 258 | Desktop study of methods for the monitoring of particulate emissions from positively pressurised baghouses |
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| 259 | Integrated river corridor assessment : a pilot study of the rivers Wansbeck and North Tyne in Northumbria |
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| 260 | Scope for growth and levels of contaminants in mussels from the Wash. Phase 2 |
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| 261 | River Stort : draft catchment management plan for flood defence and the environment : May 1991 |
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| 262 | Catchment management plans : protecting and enhancing the water environment in an integrated manner |
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| 263 | Impact assessment of scour valve test at Roadford Reservoir on water quality of the River Lyd |
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| 264 | Notice to water only companies of programme of environmental obligations agreed by the Secretary of State for the Environment, Transport and the Regions and for Wales : periodic review of water company price limits 2000-2005 |
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| 265 | Analysis of natural and polluted river communities in Great Britain- Progress report for the period April 1984- March 1988
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| 266 | Effects of flow regime on the young stages of salmonid fishes- summary and conclusions based on results for 1981- 1985 |
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| 267 | Local Environment Agency plan for the West Midlands Tame, 2nd annual review, July 2001 : local environment focus |
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| 268 | The use of constructed wetlands to ameliorate metal-rich mine waters. Stage 1 : study of natural wetlands |
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| 269 | NRA guidance on the acceptable leachable values for contaminated material to be deposited in Upper Tame catchment |
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| 270 | Freshwater migration of sea trout (Salmo trutta L.) in the river Tywi during 1988, 1989 and 1990 |
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| 271 | Evaluating the impact of groundwater abstraction on key conservation sites, final report : Yare Broads and marshes (Strumpshaw Fen) |
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| 272 | Investigation into failures of the River Dalch from Canns Mill Bridge to below Lapford sewage treatment works (2001) |
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| 273 | Analysis of natural and polluted river communities in Great Britain- Progress report for the period January-December 1987 |
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| 274 | Low flows and water resources : facts on the top 40 low flow rivers in England and Wales |
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| 275 | Critical review of the proposals for a good practice guide on sustainability appraisal of regional planning guidance (DETR, August 1999) |
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