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#Title
626Contribution of small streams to potential fish production in the Conwy catchment
627NRA strategy for reducing the concentration of pesticides in controlled waters
628The ecology and management of riverine trees : interim report
629Low-cost modifications of the Crump weir to improve fish passage
630Policy and practice for the protection of groundwater - Thames region appendix
631Policy and practice for the protection of floodplains
632'Sea Vigil' water quality monitoring : the Wash 1992-1993
633Second annual review of the Seaton, Looe and Fowey catchment management plan
634The Yarrow catchment : recommendations for statutory water quality objectives
635Leachate Migration Through The Triassic Sandstones At Burntstump Landfill And Elsewhere
636The evaluation of a Nico Elit 051 ammonium ion selective electrode (220/16/T)
637Guidance on the use of Bioassays in Ecological Risk Assessment
638The National Rivers Authority employee attitude survey : summary
639The Use of a Hydroacoustic Counter for Assessing Salmon Stocks
640Geochemical process modelling : progress report for the period Jan - March 1993 (0295/11/A)
641Pesticides in the aquatic environment 1997 : executive summary
642Targeted Monitoring Programme for Pharmaceuticals in the Aquatic Environment
643Mercury and methylmercury in the river Yare, Norfolk (OI/420/8/A)
644The Louth coastal catchment management plan : final report
645Fine sediment deposition in the River Keer : geomorphological assessment
646Snapshots of the environment : a new environmental approach
647Draft protocol for the derivation of Toxicity Based Consents
648Assessment of the Impact of Nutrient Removal on Eutrophic Rivers
649Second Coniston OS map related to the Seismic Survey 1983
650Note 2 by Professor Gerald Sargent regarding the Coniston Seismic Survey 1983