| 551 | Partnership in environmental protection : schemes in the Midlands Region 1995 - 1996 |
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| 552 | Investigation of mercury contamination in the Red River catchment, West Cornwall |
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| 553 | An investigation into the incidence of spurting from weeping wall slurry stores |
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| 554 | NRA superannuation report and accounts for the period ended 31 March 1991 |
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| 555 | Further guidance on the environmental assessment of projects |
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| 556 | Assessing the impact of dewatering on water resources |
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| 557 | The use and design of oil separators in surface water drainage systems |
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| 558 | The utilisation of stick-pile otter holts in south east Wales |
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| 559 | Improving the Environment Agency's contribution to wetland bird populations |
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| 560 | Groundwater-surface Water Interactions in the Hyporheic Zone |
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| 561 | River water quality in the Midlands 1994/95 : water quality summary data |
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| 562 | Model Procedures for the Management of Land Contamination |
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| 563 | Applications Of Artificial Intelligence For The Biological Surveillance Of River Quality |
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| 564 | Improving the contribution of social science to Flood Risk Management |
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| 565 | Reappraisal of the River Lee to Wheathampstead Mill |
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| 566 | Business requirement specification : integrated accounting system for the (IAS) |
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| 567 | A report on fish production in the National Rivers Authority |
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| 568 | Moston Brook Summary Report for the Evidence and Measures Project |
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| 569 | Corporate Environmental Reporting in the UK Water Sector - A Concise Review |
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| 570 | Strategy for the use of field instrumentation in water quality monitoring |
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| 571 | Anthropogenic Influences on the temperature regime in a chalk river |
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| 572 | London's river (information pack on the River Thames) |
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| 573 | Water and the environment in times of drought |
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| 574 | Water and the environment in times of drought |
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| 575 | A strategy for the management of salmon in England and Wales |
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