76 | The investigation of the Taff litter problem : report no. PL/EAE/89/2 |
77 | Managing the Humber Estuary : the Environment Agency's approach |
78 | The effect of the voluntary initiative on water quality |
79 | Hydrometry : the science of measuring the water cycle |
80 | An investigation into the bacteriological levels in the River Seaton |
81 | The effects of Guildford STW on the River Wey |
82 | Report on the 1995 stock assessment of the Douglas catchment |
83 | The role of the National Rivers Authority in droughts |
84 | The state of the water environment : six year trends report |
85 | Hysim model : modelling the flows of the River Deben |
86 | A litter assessment of two major tributaries of the Taff, the Cynon and the Rhondda : surveyed March - April 1990 |
87 | Assessment of the impact of discharges from Meldon Quarry on the water quality of the West Okement River |
88 | Investigations into the extent of saline water ingress into the River Parrett and the River Tone : February, March 1994 |
89 | Assessment of the performance of the BMWP scoring system against biological targets and the determination of significant change |
90 | The National Rivers Authority's response to the sixteenth report of the Royal Commission on Environmental Pollution on freshwater quality |
91 | The control of phosphorus in the catchment of the rivers Ant and Bure : 3rd annual report May 1989 |
92 | A desk study to assess the compliance of the River Fowey with the EC Surface Water Abstraction Directive : June 1997 COR/97/024 |
93 | Contaminants entering the sea : data appendix : data on contaminant loads entering the seas around England and Wales for the years 1990-1993 |
94 | Pollution control on the River Alt |
95 | Fish found in the tidal Thames |
96 | The Ely Ouse Essex water transfer scheme |
97 | A brief guide to the thames |
98 | Determining The Causes Of 'Apparent Eutrophication' Effects |
99 | Drought in the South : in depth |
100 | Rivers of the Isle of Wight |