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26Bacterial quality of the bathing waters at Seaton, Cornwall, and of the River Seaton
27Study of the behaviour and impact of two sewage treatment works of the Thames catchment
28The influence of agriculture on the quality of natural waters in England and Wales
29Assessment of Ivybridge mobile monitoring station and investigation of the water quality of the River Erme and the effect of Ivybridge Sewage Treatment works final effluent
30Meiofaunal assemblages of the Thames Estuary, April 1989-March 1990 : modules I-III : a study of the meiofaunal communities present in sediment samples collected by the National Rivers Authority, Thames Region
31Continuous water quality monitoring results collected from the river Torridge at Cockshilhay and Beam Bridge for the EU UWWTD
32Radioactivity in the environment : report for 1998 : a summary and radiological assessment of the Environment Agency's monitoring programmes
33Radioactivity in the environment : a summary and radiological assessment of the Environment Agency's monitoring programmes : report for 1996
34Second interim report on the environmental impacts of the drought on Yorkshire's rivers April 1995 to April 1996
35Interim report on the environmental impacts of the drought on Yorkshire rivers April 1995 to April 1996
36An investigation into the bacterial water quality of the River Umber, N. Devon : December 1996 : DEV/WQ/14/96
37NRA report of the blue-green algal monitoring 1990 : a report by the toxic blue-green algae task group
38Biosensors for environmental monitoring : a review of capabilities and strategies for the future : consultant's report to the NRA
39An investigation to determine if Great Torrington STW is the cause of elevated copper and zinc concentrations in the River Torridge
40A desk top study into the probable causes of poor water quality at Higher Hollacombe Farm (RO5K013) on the Hollacombe Lake
41Report on the quality of bathing waters in Hampshire, Sussex, Kent and the Isle of Wight : 1992 bathing season
42Rising groundwater levels in the chalk-basal sands aquifer of the Central London Basin. Progress report, March 1996
43The application of toxicity-based criteria for the regulatory control of wastewater dicharges Response compendium March 1997
44Assessment of the Trophic Status of Rivers using Macrophytes - supporting documentation for evaluation of the Mean Trophic Rank
45Corporate Environmental Reporting in the UK Water Sector - A Concise Review
46Development of Operational and Policy Guidance on the Use of Hydrogen Peroxide
47Guidance on the use of Bioassays in Ecological Risk Assessment
48Pesticides in the aquatic environment 1997 full report
49The National Centre for Toxic and Persistent Substances
50The groundwater regulations (Bilingual) : Rheoliadau dwr daear (Bilingual)