| 576 | Water from the River Dee : a working partnership |
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| 577 | Land drainage byelaws 1981 and the Thames region flood defence byelaws 1991 |
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| 578 | River quality in England and Wales : a report of the 1990 survey |
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| 579 | Snapshots of the environment : understanding coastal water quality |
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| 580 | The evaluation of EDT QSE 334 ammonium ion selective electrode (220/17/T) |
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| 581 | The evaluation of ingold ion selective ammonium electrode (220/23/T) |
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| 582 | Rivers of the Isle of Wight fact file |
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| 583 | The Mersey estuary : a report on environmental quality |
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| 584 | 'Sea Vigil' water quality monitoring : the East coast 1992-1993 |
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| 585 | Lakes, Ponds and Reservoirs in the Southern Region (NRA) |
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| 586 | The evaluation of an orion ammonium ion selective electrode (220/15/T) |
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| 587 | An Independent Review of the Defra/EA Research and Development Joint |
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| 588 | Anthropogenic Impacts on the Hydrology of Rivers and Lochs |
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| 589 | Dissemination of the Revitalised FEH Rainfall-runoff Method |
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| 590 | General guide to the prevention of water pollution |
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| 591 | Guidance for the Development of Housing on Land Affected by Contamination |
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| 592 | Guidance on the use of Soil Screening Values for Ecological Risk Assessment |
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| 593 | Highway runoff: Effects of soluble pollutants on the ecology of receiving waters |
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| 594 | Life cycle assessment of disposable and reusable nappies in the UK |
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| 595 | Managing the social aspects of flooding: Synthesis Report |
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| 596 | Model For Investigating The Impacts Of Groundwater Abstraction |
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| 597 | National guidelines for the production of NRA regions 1990/91 regional plans |
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| 598 | Policy and practice for the protection of groundwater : regional appendix Welsh region |
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| 599 | Procurement legislation and the NRA : a brief guide |
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| 600 | Strategic review of development and flood risk : the River Welland catchment |
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