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