| 51 | A Report on the Drought on the River Darent |
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| 52 | An investigation into the effect of Farnham STW on the River Wey |
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| 53 | An investigation into the effects of Woking STW on the River Wey |
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| 54 | River pack : information sheets about the NRA and the water environment |
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| 55 | River Darent : strategy for the enhancement of the River Darent, Kent |
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| 56 | The effect of the voluntary initiative on water quality |
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| 57 | Hydrometry : the science of measuring the water cycle |
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| 58 | The effects of Guildford STW on the River Wey |
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| 59 | Report on the 1995 stock assessment of the Douglas catchment |
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| 60 | The role of the National Rivers Authority in droughts |
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| 61 | The state of the water environment : six year trends report |
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| 62 | Hysim model : modelling the flows of the River Deben |
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| 63 | 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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| 64 | The release of ammonium and phosphorus from the sediments of the River Ant and Barton Broad : interim report |
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| 65 | The control of phosphorus in the catchment of the rivers Ant and Bure : interim report for period January - December 1992 |
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| 66 | A litter assessment of two major tributaries of the Taff, the Cynon and the Rhondda : surveyed March - April 1990 |
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| 67 | Assessment of the impact of discharges from Meldon Quarry on the water quality of the West Okement River |
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| 68 | Assessment of the performance of the BMWP scoring system against biological targets and the determination of significant change |
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| 69 | The National Rivers Authority's response to the sixteenth report of the Royal Commission on Environmental Pollution on freshwater quality |
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| 70 | The control of phosphorus in the catchment of the rivers Ant and Bure : 3rd annual report May 1989 |
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| 71 | 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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| 72 | Fish found in the tidal Thames |
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| 73 | Determining The Causes Of 'Apparent Eutrophication' Effects |
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| 74 | Drought in the South : in depth |
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| 75 | The Great Ouse (Bedford Ouse) fact file |
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