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701A strategic review of the petroleum refinery Industry Sector
702Guidelines for river corridor surveys in the NRA : February 1992. draft 3
703Second annual review of the Sid/Otter catchment management plan 1999
704Contribution of small streams to potential fish production in the Conwy catchment
705NRA strategy for reducing the concentration of pesticides in controlled waters
706The ecology and management of riverine trees : interim report
707Low-cost modifications of the Crump weir to improve fish passage
708Policy and practice for the protection of groundwater - Thames region appendix
709Policy and practice for the protection of floodplains
710'Sea Vigil' water quality monitoring : the Wash 1992-1993
711Second annual review of the Seaton, Looe and Fowey catchment management plan
712The Yarrow catchment : recommendations for statutory water quality objectives
713Leachate Migration Through The Triassic Sandstones At Burntstump Landfill And Elsewhere
714The evaluation of a Nico Elit 051 ammonium ion selective electrode (220/16/T)
715Guidance on the use of Bioassays in Ecological Risk Assessment
716The National Rivers Authority employee attitude survey : summary
717The Use of a Hydroacoustic Counter for Assessing Salmon Stocks
718Geochemical process modelling : progress report for the period Jan - March 1993 (0295/11/A)
719Pesticides in the aquatic environment 1997 : executive summary
720Targeted Monitoring Programme for Pharmaceuticals in the Aquatic Environment
721Mercury and methylmercury in the river Yare, Norfolk (OI/420/8/A)
722The Louth coastal catchment management plan : final report
723Fine sediment deposition in the River Keer : geomorphological assessment
724Snapshots of the environment : a new environmental approach
725Draft protocol for the derivation of Toxicity Based Consents