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701NRA strategy for reducing the concentration of pesticides in controlled waters
702Low-cost modifications of the Crump weir to improve fish passage
703Policy and practice for the protection of groundwater - Thames region appendix
704Policy and practice for the protection of floodplains
705'Sea Vigil' water quality monitoring : the Wash 1992-1993
706The Yarrow catchment : recommendations for statutory water quality objectives
707Leachate Migration Through The Triassic Sandstones At Burntstump Landfill And Elsewhere
708The evaluation of a Nico Elit 051 ammonium ion selective electrode (220/16/T)
709Guidance on the use of Bioassays in Ecological Risk Assessment
710The National Rivers Authority employee attitude survey : summary
711The Use of a Hydroacoustic Counter for Assessing Salmon Stocks
712Geochemical process modelling : progress report for the period Jan - March 1993 (0295/11/A)
713Pesticides in the aquatic environment 1997 : executive summary
714Targeted Monitoring Programme for Pharmaceuticals in the Aquatic Environment
715Mercury and methylmercury in the river Yare, Norfolk (OI/420/8/A)
716Fine sediment deposition in the River Keer : geomorphological assessment
717Snapshots of the environment : a new environmental approach
718Draft protocol for the derivation of Toxicity Based Consents
719The Loddon catchment, Thames : recommendations for statutory water quality objectives
720Assessment of the Impact of Nutrient Removal on Eutrophic Rivers
721Second Coniston OS map related to the Seismic Survey 1983
722Note 2 by Professor Gerald Sargent regarding the Coniston Seismic Survey 1983
723Note 1 by Professor Gerald Sargent regarding the Coniston Seismic Survey 1983
724Coniston OS map related to the Seismic Survey 1983
725The flood of February 1990 : technical services flood monitoring report