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676The Yarrow catchment : recommendations for statutory water quality objectives
677Leachate Migration Through The Triassic Sandstones At Burntstump Landfill And Elsewhere
678The evaluation of a Nico Elit 051 ammonium ion selective electrode (220/16/T)
679Guidance on the use of Bioassays in Ecological Risk Assessment
680The National Rivers Authority employee attitude survey : summary
681The Use of a Hydroacoustic Counter for Assessing Salmon Stocks
682Geochemical process modelling : progress report for the period Jan - March 1993 (0295/11/A)
683Pesticides in the aquatic environment 1997 : executive summary
684Targeted Monitoring Programme for Pharmaceuticals in the Aquatic Environment
685Mercury and methylmercury in the river Yare, Norfolk (OI/420/8/A)
686The Louth coastal catchment management plan : final report
687Fine sediment deposition in the River Keer : geomorphological assessment
688Snapshots of the environment : a new environmental approach
689Draft protocol for the derivation of Toxicity Based Consents
690The Loddon catchment, Thames : recommendations for statutory water quality objectives
691Assessment of the Impact of Nutrient Removal on Eutrophic Rivers
692Second Coniston OS map related to the Seismic Survey 1983
693Note 2 by Professor Gerald Sargent regarding the Coniston Seismic Survey 1983
694Note 1 by Professor Gerald Sargent regarding the Coniston Seismic Survey 1983
695Coniston OS map related to the Seismic Survey 1983
696The flood of February 1990 : technical services flood monitoring report
697Sustainable drainage systems (SuDS) : an evaluation using the Natural Step framework
698Policy and practice for the protection of groundwater : Southern region appendix
699Uses of the water environment: factsheet number six
700River basin planning and the Water Framework Directive