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676Guidance on the use of Bioassays in Ecological Risk Assessment
677The Use of a Hydroacoustic Counter for Assessing Salmon Stocks
678Pesticides in the aquatic environment 1997 : executive summary
679Targeted Monitoring Programme for Pharmaceuticals in the Aquatic Environment
680Mercury and methylmercury in the river Yare, Norfolk (OI/420/8/A)
681The Louth coastal catchment management plan : final report
682Fine sediment deposition in the River Keer : geomorphological assessment
683Snapshots of the environment : a new environmental approach
684Draft protocol for the derivation of Toxicity Based Consents
685The Loddon catchment, Thames : recommendations for statutory water quality objectives
686Assessment of the Impact of Nutrient Removal on Eutrophic Rivers
687The flood of February 1990 : technical services flood monitoring report
688Sustainable drainage systems (SuDS) : an evaluation using the Natural Step framework
689Policy and practice for the protection of groundwater : Southern region appendix
690Uses of the water environment: factsheet number six
691River basin planning and the Water Framework Directive
692The Adur and Ouse catchment abstraction management strategy : consultation document
693First annual review of the River Exe catchment management plan
694First annual review of the Taw/Torridge estuary catchment management plan (1996)
695Flood alleviation proposals for Bakewell and Ashford in the Water
696An update on the Hexham flood alleviation scheme, Autumn 2006
697(Bilingual) Assessing the impact of dewatering on water resources
698Catches of Brown Trout in the River Don
699Environmental snapshot for the East of England [2000]
700Biodiversity strategy and action plan for the Environment Agency (Thames Region)