| 901 | Second annual review of the Lower Bristol Avon catchment management plan |
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| 902 | Second annual review of the Upper Bristol Avon catchment management plan |
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| 903 | The River Avon and its tributaries near Malmesbury : river management studies |
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| 904 | Eel and elver studies in the Severn : interim report (256/6/ST) |
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| 905 | Fishery survey of the Bridgwater and Taunton Canal |
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| 906 | The quality of rivers and estuaries in Northumbria region 1990 |
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| 907 | A guide to sustainable urban drainage : protecting the quality of our environment |
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| 908 | Air dispersion climate from the Castle Cement works at Ribblesdale |
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| 909 | Estuarial migration of Atlantic salmon in the river Dee (North Wales) |
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| 910 | Pesticide residues in fish taken from the Newlyn River (1992) |
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| 911 | A Review Of The Impact Of Microbiological Contaminants In Groundwater |
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| 912 | Doe Lea restoration study : the work of WRc |
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| 913 | Environmental screening for the Merseyside objective 1 programme : environmental screening guidelines |
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| 914 | The NRA in business : annual review and summary accounts 1993-94 |
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| 915 | Environmental statement for the River Wandle flood alleviation scheme contract one (C1) |
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| 916 | Cyanobacteria (blue-green algae) in the south west region 1989 |
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| 917 | Toxic blue-green algae : a report by the National Rivers Authority |
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| 918 | Investigation of salinity in the river Thurne catchment of North East Norfolk |
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| 919 | Catchment abstraction management strategies (CAMS) and the Water Framework Directive (WFD) |
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| 920 | Managing water abstraction : the catchment abstraction management strategy process : April 2001 |
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| 921 | Water quality investigations in the Newlyn river catchment |
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| 922 | An assessment of water quality in the River Yarty catchment |
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| 923 | Investigations of discharges into the River Lemon at Newton Abbot |
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| 924 | Report on monitoring of environmental quality in the Severn Estuary |
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| 925 | INP-integrated North Sea programme : workshop 14-15th May 1992, Rijkswaterstaat,The Hague |
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