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701Contribution of small streams to potential fish production in the Conwy catchment
702NRA strategy for reducing the concentration of pesticides in controlled waters
703The ecology and management of riverine trees : interim report
704Low-cost modifications of the Crump weir to improve fish passage
705Policy and practice for the protection of groundwater - Thames region appendix
706Policy and practice for the protection of floodplains
707'Sea Vigil' water quality monitoring : the Wash 1992-1993
708Second annual review of the Seaton, Looe and Fowey catchment management plan
709Leachate Migration Through The Triassic Sandstones At Burntstump Landfill And Elsewhere
710The evaluation of a Nico Elit 051 ammonium ion selective electrode (220/16/T)
711Guidance on the use of Bioassays in Ecological Risk Assessment
712The National Rivers Authority employee attitude survey : summary
713The Use of a Hydroacoustic Counter for Assessing Salmon Stocks
714Geochemical process modelling : progress report for the period Jan - March 1993 (0295/11/A)
715Pesticides in the aquatic environment 1997 : executive summary
716Mercury and methylmercury in the river Yare, Norfolk (OI/420/8/A)
717The Louth coastal catchment management plan : final report
718Fine sediment deposition in the River Keer : geomorphological assessment
719Snapshots of the environment : a new environmental approach
720Second Coniston OS map related to the Seismic Survey 1983
721Note 2 by Professor Gerald Sargent regarding the Coniston Seismic Survey 1983
722Note 1 by Professor Gerald Sargent regarding the Coniston Seismic Survey 1983
723Coniston OS map related to the Seismic Survey 1983
724The flood of February 1990 : technical services flood monitoring report
725Sustainable drainage systems (SuDS) : an evaluation using the Natural Step framework