| 51 | Ecological effects of discharges from watercress farms on the chalk-streams of the NRA Wessex Region |
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| 52 | Evaluation of the effectiveness of the Water Fringe Option Scheme on Environmental Quality |
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| 53 | National marine baseline survey 1995 : littoral cell 3 : the Wash to the Thames |
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| 54 | The Distribution Of Phytoplankton And Nutrients In The North East Irish Sea During 1997; |
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| 55 | An investigation into the water quality of the River Waldon during wet weather |
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| 56 | The Distribution Of Phytoplankton And Nutrients In The North East Irish Sea During 1996; |
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| 57 | Biological assessment of the effects of Ivybridge Sewage Treatment Works on the River Erme |
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| 58 | A Status Report on the Direct Oxygenation of the Tywi Estuary - October 1989 |
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| 59 | Investigation into the impact of Henstridge sewage treatment works on the River Umber, North Devon |
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| 60 | Biological investigation into the impact of the storm overflow at Middle Marwood Sewage Treatment Works |
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| 61 | A review of the performance of Aldershot STW and its effect on the River Blackwater |
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| 62 | The Natural (Baseline) Quality Of Groundwaters In England And Wales - The Chalk Of Lincolnshire; |
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| 63 | Investigation into the chemicals present and entering the Stover Lake, Stover Country Park |
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| 64 | The environmental impact of the foot and mouth disease outbreak: and interim assessment |
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| 65 | The impact of land use on salmonids (Report 30) : a study of the River Torridge catchment |
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| 66 | The Distribution of Phytoplankton and Nutrients in the North East Irish Sea During 1998 |
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| 67 | Riverside litter : results of the 1990 campaign and a strategy for the future |
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| 68 | Project record for the review and statistical analysis of the baseline coastal waters survey |
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| 69 | Investigation of the impact on water quality of the SWW Teign estuary sewerage trenching activity |
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| 70 | Investigation of the water quality in the Buckland stream up and downstream of East/West Buckland |
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| 71 | The Possible effects on migratory fish in the River Dee of increased water abstraction |
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| 72 | Integrated appraisal of the Environment Agency's water quality policies : role of the FWR manual |
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| 73 | Clouding: the issue. An appraisal of the effects of turbidity in aquatic systems |
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| 74 | Further surveys to elucidate the distribution of the fine-lined pea mussel Pisidium tenuilineatum Stelfox, 1918 |
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| 75 | Study of the behaviour and impact of two sewage treatment works of the Thames catchment |
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