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651The ecology and management of riverine trees : interim report
652Low-cost modifications of the Crump weir to improve fish passage
653Policy and practice for the protection of groundwater - Thames region appendix
654Policy and practice for the protection of floodplains
655'Sea Vigil' water quality monitoring : the Wash 1992-1993
656Second annual review of the Seaton, Looe and Fowey catchment management plan
657The Yarrow catchment : recommendations for statutory water quality objectives
658Leachate Migration Through The Triassic Sandstones At Burntstump Landfill And Elsewhere
659The evaluation of a Nico Elit 051 ammonium ion selective electrode (220/16/T)
660The National Rivers Authority employee attitude survey : summary
661The Use of a Hydroacoustic Counter for Assessing Salmon Stocks
662Geochemical process modelling : progress report for the period Jan - March 1993 (0295/11/A)
663Pesticides in the aquatic environment 1997 : executive summary
664Mercury and methylmercury in the river Yare, Norfolk (OI/420/8/A)
665The Louth coastal catchment management plan : final report
666Fine sediment deposition in the River Keer : geomorphological assessment
667Snapshots of the environment : a new environmental approach
668Draft protocol for the derivation of Toxicity Based Consents
669The Loddon catchment, Thames : recommendations for statutory water quality objectives
670The flood of February 1990 : technical services flood monitoring report
671Sustainable drainage systems (SuDS) : an evaluation using the Natural Step framework
672Policy and practice for the protection of groundwater : Southern region appendix
673Uses of the water environment: factsheet number six
674River basin planning and the Water Framework Directive
675The Adur and Ouse catchment abstraction management strategy : consultation document