| 801 | Old Bedford incorporating the Middle Level and Ouse Washes : consultation report - May 1997 |
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| 802 | Old Bedford incorporating the Middle Level and Ouse Washes : second annual review : July 2000 |
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| 803 | Discharge consents and compliance : the NRA's approach to control of discharges to water |
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| 804 | Water pollution incidents in England and Wales - 1992 : report of the National Rivers Authority |
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| 805 | Scenarios for the operational implementation of remote sensing of snow by satellites : interim report (207/3/N) |
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| 806 | The application and validation of in situ ecotoxicological assays at biologically and chemically incongruous sites (379/2/T) |
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| 807 | A report on a baseline survey of the subtidal benthic communities within Portland Harbour (January 1997) |
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| 808 | Policy and practice for the protection of groundwater : regional appendix South West region |
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| 809 | The available resource methodology : a framework for assessing water resources and abstraction availability : final report |
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| 810 | Controlling the inputs of persistent chemical to marine waters from land-based sources |
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| 811 | An environmental assessment of mercury in mussels (Mytilus edulis L.) in the Mersey Estuary : final report |
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| 812 | Heavy metal contaminants in fish caught from the Mersey Estuary and inshore Liverpool Bay |
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| 813 | A review of the industrial uses of continuous monitoring systems : minerals industry processes |
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| 814 | Herbicides for use in or near the aquatic environment: Priorities for Environmental Quality Standards Development |
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| 815 | Manual for the use of herbicides in or near water : April 1993 : final draft report |
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| 816 | Direct toxicity assessment : a step towards better environmental protection within the UK : business strategy |
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| 817 | Pesticides 2000 : a summary of monitoring of the aquatic environment in England and Wales |
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| 818 | Analysis of airborne platform specifications and operations for the National Rivers Authority by Atlantique Reconnaissance Ltd |
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| 819 | Devon area internal report - measurement of dissolved oxygen levels in the Dart estuary - March 1996 |
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| 820 | The evaluation of a pHOX model 962 hand-held dissolved oxygen meter (220/28/T) |
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| 821 | The evaluation of a WTW model OXI 196 hand-held dissolved oxygen meter (220/29/T) |
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| 822 | The evaluation of a YSI model 58 hand-held dissolved oxygen meter (220/24/T) |
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| 823 | The evaluation of an ABB Kent-Taylor model 7135 hand-held dissolved oxygen meter (220/30/T) |
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| 824 | An evaluation of discharge and consent compliance policy : a blueprint for the future |
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| 825 | An evaluation of discharge and consent compliance policy : a blueprint for the future : letters from respondents |
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