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626Low-cost modifications of the Crump weir to improve fish passage
627Policy and practice for the protection of groundwater - Thames region appendix
628Policy and practice for the protection of floodplains
629Second annual review of the Seaton, Looe and Fowey catchment management plan
630The Yarrow catchment : recommendations for statutory water quality objectives
631Leachate Migration Through The Triassic Sandstones At Burntstump Landfill And Elsewhere
632The evaluation of a Nico Elit 051 ammonium ion selective electrode (220/16/T)
633Guidance on the use of Bioassays in Ecological Risk Assessment
634The Use of a Hydroacoustic Counter for Assessing Salmon Stocks
635Pesticides in the aquatic environment 1997 : executive summary
636Targeted Monitoring Programme for Pharmaceuticals in the Aquatic Environment
637Mercury and methylmercury in the river Yare, Norfolk (OI/420/8/A)
638The Louth coastal catchment management plan : final report
639Fine sediment deposition in the River Keer : geomorphological assessment
640Snapshots of the environment : a new environmental approach
641Draft protocol for the derivation of Toxicity Based Consents
642The Loddon catchment, Thames : recommendations for statutory water quality objectives
643Assessment of the Impact of Nutrient Removal on Eutrophic Rivers
644Sustainable drainage systems (SuDS) : an evaluation using the Natural Step framework
645Policy and practice for the protection of groundwater : Southern region appendix
646Uses of the water environment: factsheet number six
647River basin planning and the Water Framework Directive
648The Adur and Ouse catchment abstraction management strategy : consultation document
649First annual review of the River Exe catchment management plan
650First annual review of the Taw/Torridge estuary catchment management plan (1996)