76 | The state of the water environment : six year trends report |
77 | The investigation of the Taff litter problem : report no. PL/EAE/89/2 |
78 | The role of the National Rivers Authority in droughts |
79 | Report on the 1995 stock assessment of the Douglas catchment |
80 | River pack : information sheets about the NRA and the water environment |
81 | Hysim model : modelling the flows of the River Deben |
82 | An investigation into the effect of Farnham STW on the River Wey |
83 | The effect of the voluntary initiative on water quality |
84 | Hydrometry : the science of measuring the water cycle |
85 | An investigation into the effects of Woking STW on the River Wey |
86 | The control of phosphorus in the catchment of the rivers Ant and Bure : 3rd annual report May 1989 |
87 | The release of ammonium and phosphorus from the sediments of the River Ant and Barton Broad : interim report |
88 | Contaminants entering the sea : data appendix : data on contaminant loads entering the seas around England and Wales for the years 1990-1993 |
89 | The National Rivers Authority's response to the sixteenth report of the Royal Commission on Environmental Pollution on freshwater quality |
90 | Assessment of the performance of the BMWP scoring system against biological targets and the determination of significant change |
91 | Assessment of the impact of discharges from Meldon Quarry on the water quality of the West Okement River |
92 | Investigations into the extent of saline water ingress into the River Parrett and the River Tone : February, March 1994 |
93 | A desk study to assess the compliance of the River Fowey with the EC Surface Water Abstraction Directive : June 1997 COR/97/024 |
94 | A litter assessment of two major tributaries of the Taff, the Cynon and the Rhondda : surveyed March - April 1990 |
95 | The control of phosphorus in the catchment of the rivers Ant and Bure : interim report for period January - December 1992 |
96 | Drought in the South : in depth |
97 | Rivers of the Isle of Wight |
98 | Naturalisation of the Orton flow record |
99 | Flood defences : the Lower Witham strategy |
100 | The Environment Agency navigations : Thames, Anglian, Southern |