| 76 | River water quality in the Midlands 1997 |
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| 77 | River water quality in the Midlands 1998 |
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| 78 | The River Thame : catchment review : march 1996 |
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| 79 | Phosphate in the cut-off channel |
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| 80 | The River Lark project Final Report |
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| 81 | The Ely Ouse Essex water transfer scheme |
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| 82 | The Nidd and Wharfe catchment (river factfiles) |
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| 83 | Bacterial quality of the bathing waters at Seaton, Cornwall, and of the River Seaton |
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| 84 | Investigation into inputs in the Erme estuary and their effects on the bathing waters at Mothecombe |
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| 85 | The water protection zone (River Dee catchment) designation order : supplementary paper in support of the application |
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| 86 | Rising groundwater levels in the chalk-basal sands aquifer of the Central London basin : April 2000 |
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| 87 | Salmon and sea trout fishing in the estuary of the River Tavy : a review |
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| 88 | The Ribble fisheries management plan : a consultation document produced by the National Rivers Authority |
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| 89 | Investigation of the impact on water quality of the SWW Teign estuary sewerage trenching activity |
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| 90 | Investigation into the 1999 failure of the European Community bathing waters directive at Beer beach (2001) |
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| 91 | Impact of the signal crayfish Pacifastacus leniusculus and its associated crayfishery on the River Thame |
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| 92 | Rising groundwater levels in the chalk-basal sands aquifer of the Central London basin |
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| 93 | Rising groundwater levels in the chalk - basal sands aquifer of the central london basins |
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| 94 | Conservation and recreation: the Wye challenge: volume 1: report of the River Wye project |
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| 95 | Investigation of the water quality in the Buckland stream up and downstream of East/West Buckland |
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| 96 | The Effect of Atrazine Exposure on the Timing of Salmon (Salmo salar L.) Smolt Emigration |
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| 97 | Biological assessment of the effects of Ivybridge Sewage Treatment Works on the River Erme |
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| 98 | Environmental monitoring of the Fal Estuary to support the Fal Swan study : final draft report |
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| 99 | A Status Report on the Direct Oxygenation of the Tywi Estuary - October 1989 |
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| 100 | An investigation into the effects of Alton sewage works on the River Wey North |
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