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226River Darent low flow alleviation. Annex 3 : plan for the Darent : report of the joint NRA/TWUL project team
227Water framework directive : guiding principles on the technical requirements (summary) : accompanying summary to the Environment Agency consultation document
228A biological investigation of the affects of discharges from Meldon quarry on the West Okemont River - 8/08/89 and 20/09/89
229An investigation into the bacterial water quality of the River Umber, N. Devon : December 1996 : DEV/WQ/14/96
230An investigation into the elevated BOD levels at Brocken Bridge (R30H001) on the Barnstaple Yeo [DEV/E/20/95]
231A preliminary investigation into the extent of saline ingress into Curry Moor from the River Tone, January 1994
232A report on the infaunal communities within Weston Bay in relation to the sewage outfall at Black Rock
233Modelling the contribution from non-agricultural sources to nitrate pollution in the Sor Brook (Thames Region) (UC 3134)
234A desk top study into the probable causes of poor water quality at Higher Hollacombe Farm (RO5K013) on the Hollacombe Lake
235Health effects of sea bathing (WMI 9021) - Phase III final report to the Department of the Environment
236Procedure for quality assurance for RIVPACS compatible macro-invertebrate samples analysed to the taxonomic level needed for the BMWP-score system
237Assessment of the Trophic Status of Rivers using Macrophytes - supporting documentation for evaluation of the Mean Trophic Rank
238The Economics of No-Spray Zones - a Study of the Risks and Benefits of Pesticide No-Spray Restrictions
239An audit of performance in the AQC inspection of standard biological macro-invertebrate samples in 2002 : The Environment Agency (C00158/31)
240Biological investigation of the impact of Ivybridge sewage treatment works discharge to the River Erme, May 1991
241Final report of the controlled cohort investigations into the health effects of bathing in sewage contaminated coastal waters
242An investigation to determine the source of high levels of gamma-HCH in the Newlyn River during summer 1989
243An assessment of the causes of non-compliance with river quality standards within the River Tiddy catchment (1989-1991)
244Assessment of the feasibility of using image analysis in the oyster embryo-larval development and daphnia magna growth tests
245A review of the quality and status of the Suffolk and Essex estuaries and coastal waters : volume 1 : final draft
246NRA report of the blue-green algal monitoring 1990 : a report by the toxic blue-green algae task group
247Options for transfer of water from the River Trent and reservoir storage at Great Bradley : technical summary of the feasibility report
248Environmental snapshot for the East of England [version 1]
249Disturbing the season's due: plankton periodicity in Grassmere, 1987
250The Impact Of Particulate Outputs Associated With Timber Harvesting