| 901 | Charging for discharges scheme : guidance to the power generation industry |
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| 902 | The Test catchment southern : recommendations for statutory water quality objectives |
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| 903 | The Worcestershire Stour catchment : recommendations for statutory water quality objectives |
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| 904 | An assessment of river water quality in the River Kenn |
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| 905 | A survey of ferruginous minewater impacts in the Welsh coalfields |
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| 906 | A survey of ferruginous minewater impacts in the Welsh coalfields |
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| 907 | Dioxins and the River Doe Lea : plain English report |
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| 908 | Temporal variability in chlorophyll-a : concentrations in the coastal environment : final report |
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| 909 | Narrowboats on the Thames : useful hints and tips |
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| 910 | Locks and weirs on the river Thames : how do they work? |
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| 911 | Second annual review of the Lower Bristol Avon catchment management plan |
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| 912 | Second annual review of the Upper Bristol Avon catchment management plan |
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| 913 | The River Avon and its tributaries near Malmesbury : river management studies |
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| 914 | Eel and elver studies in the Severn : interim report (256/6/ST) |
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| 915 | Fishery survey of the Bridgwater and Taunton Canal |
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| 916 | The quality of rivers and estuaries in Northumbria region 1990 |
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| 917 | Air dispersion climate from the Castle Cement works at Ribblesdale |
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| 918 | Estuarial migration of Atlantic salmon in the river Dee (North Wales) |
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| 919 | Pesticide residues in fish taken from the Newlyn River (1992) |
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| 920 | A Review Of The Impact Of Microbiological Contaminants In Groundwater |
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| 921 | Doe Lea restoration study : the work of WRc |
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| 922 | Environmental screening for the Merseyside objective 1 programme : environmental screening guidelines |
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| 923 | Cyanobacteria (blue-green algae) in the south west region 1989 |
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| 924 | Toxic blue-green algae : a report by the National Rivers Authority |
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| 925 | Investigation of salinity in the river Thurne catchment of North East Norfolk |
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