| 51 | NRA report of the blue-green algal monitoring 1990 : a report by the toxic blue-green algae task group |
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| 52 | Water framework directive : guiding principles on the technical requirements (summary) : accompanying summary to the Environment Agency consultation document |
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| 53 | An investigation into the frequency of discharge of three combined sewer overflows in the Afan/Kenfig catchment : TM/EAW/96/06 |
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| 54 | Pesticides in the aquatic environment : regional data appendix : prepared by the National Centre for Toxic and Persistent Substances (TAPS) |
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| 55 | Radioactivity in the environment : a summary and radiological assessment of the Environment Agency's monitoring programmes : report for 1996 |
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| 56 | An audit of performance in the AQC inspection of standard biological macro-invertebrate samples in 2002 : The Environment Agency (C00158/31) |
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| 57 | Sustainable water resources for the future : values and challenges : consultation document for the Environment Agency's water resources strategies |
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| 58 | Contaminants entering the sea : a report on contaminant loads entering the seas around England and Wales 1990-1993 |
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| 59 | Guidance notes for local planning authorities on the methods of protecting the water environment through development plans |
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| 60 | Snapshots of the environment : integrated river basin management |
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| 61 | Water resources for the future : annual review 2003 |
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| 62 | Modelling phytoplankton development in the proposed Cardiff Bay Barrage
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| 63 | Water quality 2000 : a strategy for the water quality function |
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| 64 | Snapshots of the environment : understanding coastal water quality |
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| 65 | Temporal variability in chlorophyll-a : concentrations in the coastal environment : final report |
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| 66 | A survey of ferruginous minewater impacts in the Welsh coalfields |
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| 67 | A survey of ferruginous minewater impacts in the Welsh coalfields |
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| 68 | Proposals for statutory water quality objectives : report of the National Rivers Authority |
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| 69 | Sustainable urban drainage : an introduction : protecting the quality of our environment |
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| 70 | Water from the River Dee : a working partnership |
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| 71 | Estuarial migration of Atlantic salmon in the river Dee (North Wales) |
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| 72 | The National Groundwater and Contaminated Land Centre (NGWCLC) |
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| 73 | The River Dee catchment management plan : consultation report : June 1994 |
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| 74 | A guide to sustainable urban drainage : protecting the quality of our environment |
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| 75 | The 1990 river and estuary classification survey of England and Wales |
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