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576Policy and practice for the protection of groundwater - Thames region appendix
577Policy and practice for the protection of floodplains
578Leachate Migration Through The Triassic Sandstones At Burntstump Landfill And Elsewhere
579The evaluation of a Nico Elit 051 ammonium ion selective electrode (220/16/T)
580Guidance on the use of Bioassays in Ecological Risk Assessment
581The National Rivers Authority employee attitude survey : summary
582The Use of a Hydroacoustic Counter for Assessing Salmon Stocks
583Geochemical process modelling : progress report for the period Jan - March 1993 (0295/11/A)
584Pesticides in the aquatic environment 1997 : executive summary
585Targeted Monitoring Programme for Pharmaceuticals in the Aquatic Environment
586The Louth coastal catchment management plan : final report
587Fine sediment deposition in the River Keer : geomorphological assessment
588Snapshots of the environment : a new environmental approach
589Draft protocol for the derivation of Toxicity Based Consents
590Assessment of the Impact of Nutrient Removal on Eutrophic Rivers
591Second Coniston OS map related to the Seismic Survey 1983
592Note 2 by Professor Gerald Sargent regarding the Coniston Seismic Survey 1983
593Note 1 by Professor Gerald Sargent regarding the Coniston Seismic Survey 1983
594Coniston OS map related to the Seismic Survey 1983
595The flood of February 1990 : technical services flood monitoring report
596Sustainable drainage systems (SuDS) : an evaluation using the Natural Step framework
597River basin planning and the Water Framework Directive
598The Adur and Ouse catchment abstraction management strategy : consultation document
599First annual review of the River Exe catchment management plan
600First annual review of the Taw/Torridge estuary catchment management plan (1996)