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651Low-cost modifications of the Crump weir to improve fish passage
652Policy and practice for the protection of groundwater - Thames region appendix
653'Sea Vigil' water quality monitoring : the Wash 1992-1993
654Second annual review of the Seaton, Looe and Fowey catchment management plan
655The Yarrow catchment : recommendations for statutory water quality objectives
656Leachate Migration Through The Triassic Sandstones At Burntstump Landfill And Elsewhere
657The evaluation of a Nico Elit 051 ammonium ion selective electrode (220/16/T)
658Guidance on the use of Bioassays in Ecological Risk Assessment
659The National Rivers Authority employee attitude survey : summary
660Geochemical process modelling : progress report for the period Jan - March 1993 (0295/11/A)
661Targeted Monitoring Programme for Pharmaceuticals in the Aquatic Environment
662Mercury and methylmercury in the river Yare, Norfolk (OI/420/8/A)
663The Louth coastal catchment management plan : final report
664Fine sediment deposition in the River Keer : geomorphological assessment
665Draft protocol for the derivation of Toxicity Based Consents
666The Loddon catchment, Thames : recommendations for statutory water quality objectives
667Assessment of the Impact of Nutrient Removal on Eutrophic Rivers
668Second Coniston OS map related to the Seismic Survey 1983
669Note 2 by Professor Gerald Sargent regarding the Coniston Seismic Survey 1983
670Note 1 by Professor Gerald Sargent regarding the Coniston Seismic Survey 1983
671Coniston OS map related to the Seismic Survey 1983
672The flood of February 1990 : technical services flood monitoring report
673Sustainable drainage systems (SuDS) : an evaluation using the Natural Step framework
674Policy and practice for the protection of groundwater : Southern region appendix
675Uses of the water environment: factsheet number six