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651The evaluation of a Nico Elit 051 ammonium ion selective electrode (220/16/T)
652Guidance on the use of Bioassays in Ecological Risk Assessment
653The National Rivers Authority employee attitude survey : summary
654The Use of a Hydroacoustic Counter for Assessing Salmon Stocks
655Geochemical process modelling : progress report for the period Jan - March 1993 (0295/11/A)
656Pesticides in the aquatic environment 1997 : executive summary
657Targeted Monitoring Programme for Pharmaceuticals in the Aquatic Environment
658Mercury and methylmercury in the river Yare, Norfolk (OI/420/8/A)
659The Louth coastal catchment management plan : final report
660Snapshots of the environment : a new environmental approach
661The Loddon catchment, Thames : recommendations for statutory water quality objectives
662Assessment of the Impact of Nutrient Removal on Eutrophic Rivers
663Second Coniston OS map related to the Seismic Survey 1983
664Note 2 by Professor Gerald Sargent regarding the Coniston Seismic Survey 1983
665Note 1 by Professor Gerald Sargent regarding the Coniston Seismic Survey 1983
666Coniston OS map related to the Seismic Survey 1983
667Sustainable drainage systems (SuDS) : an evaluation using the Natural Step framework
668Uses of the water environment: factsheet number six
669The Adur and Ouse catchment abstraction management strategy : consultation document
670(Bilingual) Assessing the impact of dewatering on water resources
671Catches of Brown Trout in the River Don
672Biodiversity strategy and action plan for the Environment Agency (Thames Region)
673Biological water quality monitoring in the Midlands region
674Hampshire and the Isle of Wight local contribution 2006/11
675A natural assets register for the Sankey catchment. Volume 2