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226Water quality objectives: procedures used by the NRA for the purpose of surface waters river ecosystem) (classification) regulations 1994
227Second interim report on the environmental impacts of the drought on Yorkshire's rivers April 1995 to April 1996
228Interim report on the environmental impacts of the drought on Yorkshire rivers April 1995 to April 1996
229An assessment of the impact of Berkhamsted and Maple Lodge STWs on the Grand Union canal based on macroinvertebrate surveys
230Water framework directive : guiding principles on the technical requirements (summary) : accompanying summary to the Environment Agency consultation document
231A biological investigation of the affects of discharges from Meldon quarry on the West Okemont River - 8/08/89 and 20/09/89
232An investigation into the bacterial water quality of the River Umber, N. Devon : December 1996 : DEV/WQ/14/96
233An investigation into the elevated BOD levels at Brocken Bridge (R30H001) on the Barnstaple Yeo [DEV/E/20/95]
234A preliminary investigation into the extent of saline ingress into Curry Moor from the River Tone, January 1994
235A report on the infaunal communities within Weston Bay in relation to the sewage outfall at Black Rock
236Modelling the contribution from non-agricultural sources to nitrate pollution in the Sor Brook (Thames Region) (UC 3134)
237A desk top study into the probable causes of poor water quality at Higher Hollacombe Farm (RO5K013) on the Hollacombe Lake
238Health effects of sea bathing (WMI 9021) - Phase III final report to the Department of the Environment
239Procedure for quality assurance for RIVPACS compatible macro-invertebrate samples analysed to the taxonomic level needed for the BMWP-score system
240Assessment of the Trophic Status of Rivers using Macrophytes - supporting documentation for evaluation of the Mean Trophic Rank
241The Economics of No-Spray Zones - a Study of the Risks and Benefits of Pesticide No-Spray Restrictions
242An audit of performance in the AQC inspection of standard biological macro-invertebrate samples in 2002 : The Environment Agency (C00158/31)
243Biological investigation of the impact of Ivybridge sewage treatment works discharge to the River Erme, May 1991
244Final report of the controlled cohort investigations into the health effects of bathing in sewage contaminated coastal waters
245An investigation to determine the source of high levels of gamma-HCH in the Newlyn River during summer 1989
246An assessment of the causes of non-compliance with river quality standards within the River Tiddy catchment (1989-1991)
247Assessment of the feasibility of using image analysis in the oyster embryo-larval development and daphnia magna growth tests
248A review of the quality and status of the Suffolk and Essex estuaries and coastal waters : volume 1 : final draft
249NRA report of the blue-green algal monitoring 1990 : a report by the toxic blue-green algae task group
250Options for transfer of water from the River Trent and reservoir storage at Great Bradley : technical summary of the feasibility report