| 76 | The role of the National Rivers Authority in droughts |
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| 77 | The investigation of the Taff litter problem : report no. PL/EAE/89/2 |
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| 78 | Managing the Humber Estuary : the Environment Agency's approach |
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| 79 | River pack : information sheets about the NRA and the water environment |
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| 80 | An investigation into the bacteriological levels in the River Seaton |
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| 81 | Hysim model : modelling the flows of the River Deben |
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| 82 | An investigation into the effect of Farnham STW on the River Wey |
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| 83 | An investigation into the effects of Woking STW on the River Wey |
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| 84 | River Darent : strategy for the enhancement of the River Darent, Kent |
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| 85 | The effect of the voluntary initiative on water quality |
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| 86 | Hydrometry : the science of measuring the water cycle |
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| 87 | The effects of Guildford STW on the River Wey |
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| 88 | The state of the water environment : six year trends report |
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| 89 | The restoration of the River Ver : the success story of a collaborative project between the National Rivers Authority, Three Valleys Water and the Ver Valley Society |
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| 90 | A desk study to assess the compliance of the River Fowey with the EC Surface Water Abstraction Directive : June 1997 COR/97/024 |
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| 91 | A litter assessment of two major tributaries of the Taff, the Cynon and the Rhondda : surveyed March - April 1990 |
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| 92 | Assessment of the impact of discharges from Meldon Quarry on the water quality of the West Okement River |
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| 93 | The control of phosphorus in the catchment of the rivers Ant and Bure : interim report for period January - December 1992 |
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| 94 | Assessment of the performance of the BMWP scoring system against biological targets and the determination of significant change |
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| 95 | The National Rivers Authority's response to the sixteenth report of the Royal Commission on Environmental Pollution on freshwater quality |
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| 96 | The control of phosphorus in the catchment of the rivers Ant and Bure : 3rd annual report May 1989 |
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| 97 | Investigations into the extent of saline water ingress into the River Parrett and the River Tone : February, March 1994 |
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| 98 | Contaminants entering the sea : data appendix : data on contaminant loads entering the seas around England and Wales for the years 1990-1993 |
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| 99 | The release of ammonium and phosphorus from the sediments of the River Ant and Barton Broad : interim report |
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| 100 | The Environment Agency navigations : Thames, Anglian, Southern |
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