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551The Use of a Hydroacoustic Counter for Assessing Salmon Stocks
552Geochemical process modelling : progress report for the period Jan - March 1993 (0295/11/A)
553Pesticides in the aquatic environment 1997 : executive summary
554Targeted Monitoring Programme for Pharmaceuticals in the Aquatic Environment
555The Louth coastal catchment management plan : final report
556Fine sediment deposition in the River Keer : geomorphological assessment
557Snapshots of the environment : a new environmental approach
558Draft protocol for the derivation of Toxicity Based Consents
559Assessment of the Impact of Nutrient Removal on Eutrophic Rivers
560Second Coniston OS map related to the Seismic Survey 1983
561Note 2 by Professor Gerald Sargent regarding the Coniston Seismic Survey 1983
562Note 1 by Professor Gerald Sargent regarding the Coniston Seismic Survey 1983
563Coniston OS map related to the Seismic Survey 1983
564The flood of February 1990 : technical services flood monitoring report
565Sustainable drainage systems (SuDS) : an evaluation using the Natural Step framework
566River basin planning and the Water Framework Directive
567The Adur and Ouse catchment abstraction management strategy : consultation document
568First annual review of the River Exe catchment management plan
569First annual review of the Taw/Torridge estuary catchment management plan (1996)
570Flood alleviation proposals for Bakewell and Ashford in the Water
571(Bilingual) Assessing the impact of dewatering on water resources
572Catches of Brown Trout in the River Don
573A natural assets register for the Sankey catchment. Volume 2
574Clinical waste management in the community : a guide to managing waste
575Non-compliance with water quality objectives on the Croyde stream (upper catchment)