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#Title
651Second annual review of the Sid/Otter catchment management plan 1999
652NRA strategy for reducing the concentration of pesticides in controlled waters
653Low-cost modifications of the Crump weir to improve fish passage
654Policy and practice for the protection of groundwater - Thames region appendix
655Policy and practice for the protection of floodplains
656'Sea Vigil' water quality monitoring : the Wash 1992-1993
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)
660Guidance on the use of Bioassays in Ecological Risk Assessment
661The National Rivers Authority employee attitude survey : summary
662The Use of a Hydroacoustic Counter for Assessing Salmon Stocks
663Geochemical process modelling : progress report for the period Jan - March 1993 (0295/11/A)
664Pesticides in the aquatic environment 1997 : executive summary
665Targeted Monitoring Programme for Pharmaceuticals in the Aquatic Environment
666Mercury and methylmercury in the river Yare, Norfolk (OI/420/8/A)
667The Louth coastal catchment management plan : final report
668Fine sediment deposition in the River Keer : geomorphological assessment
669Snapshots of the environment : a new environmental approach
670Draft protocol for the derivation of Toxicity Based Consents
671The Loddon catchment, Thames : recommendations for statutory water quality objectives
672Assessment of the Impact of Nutrient Removal on Eutrophic Rivers
673Second Coniston OS map related to the Seismic Survey 1983
674Note 2 by Professor Gerald Sargent regarding the Coniston Seismic Survey 1983
675Note 1 by Professor Gerald Sargent regarding the Coniston Seismic Survey 1983