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726Development of Operational and Policy Guidance on the Use of Hydrogen Peroxide
727The National Groundwater and Contaminated Land Centre (NGWCLC)
728The evaluation of a Philips ammonium ion selective electrode (220/14/T)
729The greening of Grasmere: its plankton periodicity in 1988
730A strategic review of the petroleum refinery Industry Sector
731Guidelines for river corridor surveys in the NRA : February 1992. draft 3
732Second annual review of the Sid/Otter catchment management plan 1999
733Contribution of small streams to potential fish production in the Conwy catchment
734NRA strategy for reducing the concentration of pesticides in controlled waters
735The ecology and management of riverine trees : interim report
736Low-cost modifications of the Crump weir to improve fish passage
737Policy and practice for the protection of groundwater - Thames region appendix
738Policy and practice for the protection of floodplains
739'Sea Vigil' water quality monitoring : the Wash 1992-1993
740The Yarrow catchment : recommendations for statutory water quality objectives
741Leachate Migration Through The Triassic Sandstones At Burntstump Landfill And Elsewhere
742The evaluation of a Nico Elit 051 ammonium ion selective electrode (220/16/T)
743Guidance on the use of Bioassays in Ecological Risk Assessment
744The National Rivers Authority employee attitude survey : summary
745The Use of a Hydroacoustic Counter for Assessing Salmon Stocks
746Geochemical process modelling : progress report for the period Jan - March 1993 (0295/11/A)
747Pesticides in the aquatic environment 1997 : executive summary
748Targeted Monitoring Programme for Pharmaceuticals in the Aquatic Environment
749Mercury and methylmercury in the river Yare, Norfolk (OI/420/8/A)
750The Louth coastal catchment management plan : final report