| 26 | Silt - and its effects on the river |
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| 27 | The National Rivers Authority : fact file |
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| 28 | The River Lark project Model Manual |
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| 29 | The River Severn (NRA Severn-Trent 65) |
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| 30 | The Tame catchment (NRA Severn-Trent 67) |
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| 31 | Recreational waterway byelaws in the Anglian region |
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| 32 | The Nidd and Wharfe catchment (river factfiles) |
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| 33 | Sustainable water resources for the future |
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| 34 | Guide to the operation and management of the assessment information management system (AIMS) |
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| 35 | Water resources for the future : a summary of the strategy for North East Region |
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| 36 | Water resources for the future : a summary of the strategy for England and Wales |
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| 37 | Water resources for the future : a summary of the strategy for Midlands Region |
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| 38 | A unified information system to satisfy the NRA's requirement for ecotoxicology information: the specification study |
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| 39 | A review of available information sources for assessing the hazards and risks of chemical substances in the environment. Final report : recommendations for the acquistion of certain sources of environmental data |
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| 40 | Policy and practice for the protection of groundwater : summary document |
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| 41 | The Don, Rother and Dearne catchment (river factfiles) |
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| 42 | Some guidance on the use of digital environmental data |
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| 43 | Model For Investigating The Impacts Of Groundwater Abstraction |
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| 44 | Water from the River Dee : a working partnership |
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| 45 | EC directives and the control of water pollution : fact file |
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| 46 | Computer files used in the calculation of Rutland and Grafham yields |
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| 47 | Take to the water : a beginner's guide to boating on inland waterways |
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| 48 | The use of herbicides in or near water |
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| 49 | Charging for discharges scheme : guidance to the power generation industry |
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| 50 | The Swale, Ure and Ouse catchment (river factfiles) |
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