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#Title
601A strategic review of the petroleum refinery Industry Sector
602Contribution of small streams to potential fish production in the Conwy catchment
603NRA strategy for reducing the concentration of pesticides in controlled waters
604The ecology and management of riverine trees : interim report
605Low-cost modifications of the Crump weir to improve fish passage
606'Sea Vigil' water quality monitoring : the Wash 1992-1993
607Second annual review of the Seaton, Looe and Fowey catchment management plan
608Leachate Migration Through The Triassic Sandstones At Burntstump Landfill And Elsewhere
609The evaluation of a Nico Elit 051 ammonium ion selective electrode (220/16/T)
610Guidance on the use of Bioassays in Ecological Risk Assessment
611The National Rivers Authority employee attitude survey : summary
612The Use of a Hydroacoustic Counter for Assessing Salmon Stocks
613Geochemical process modelling : progress report for the period Jan - March 1993 (0295/11/A)
614Pesticides in the aquatic environment 1997 : executive summary
615Targeted Monitoring Programme for Pharmaceuticals in the Aquatic Environment
616Mercury and methylmercury in the river Yare, Norfolk (OI/420/8/A)
617The Louth coastal catchment management plan : final report
618Fine sediment deposition in the River Keer : geomorphological assessment
619Snapshots of the environment : a new environmental approach
620Assessment of the Impact of Nutrient Removal on Eutrophic Rivers
621Second Coniston OS map related to the Seismic Survey 1983
622Note 2 by Professor Gerald Sargent regarding the Coniston Seismic Survey 1983
623Note 1 by Professor Gerald Sargent regarding the Coniston Seismic Survey 1983
624Coniston OS map related to the Seismic Survey 1983
625The flood of February 1990 : technical services flood monitoring report