| 901 | River corridor strategic overview feasibility study : a report to the National Rivers Authority |
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| 902 | Regional river quality monitoring and surveillance : results of the 1990/1991 biological survey : draft report |
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| 903 | Impact assessment of Meldon quarry on water quality in the West Okement river |
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| 904 | R and D Strategy to Support Implementation of the Water Framework Directive - Preliminary Scoping Report |
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| 905 | Biological report of the 1991 coastal and estuarine survey from Crosby to Glasson |
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| 906 | Electron Microscope Image: Filament of Oscillatoria being ingested by the ciliate Nassula tumida |
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| 907 | The government's policy for a public regulatory body in a privatised water industry |
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| 908 | The evaluation of a LTH BOM 1 hand-held dissolved oxygen meter (220/25/T) |
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| 909 | Less sensitive areas and candidate high natural dispersion areas in the North West region |
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| 910 | Water pollution incidents in England and Wales - 1990 : report of the National Rivers Authority |
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| 911 | Interpretation Of Optimisation In The Context Of A Disposal Facility For Long-Lived Radioactive Waste |
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| 912 | Two year aesthetic survey of beaches in the South West (1990 and 1991) |
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| 913 | The Impact of Pesticides on River Ecology: Phase 2: A study of headwater streams |
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| 914 | The Influence of Variations in Flow on General Quality Assessment of Rivers - Summary Document |
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| 915 | An Investigation of the Equivalent Resistance, Power Requirements and Field Characteristics of Electric Fishing Electrodes |
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| 916 | Annual classification of river water quality 1992 : numbers of samples exceeding the quality standard |
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| 917 | The Chemistry of Blended Cements and Backfills Intended for use in Radioactive Waste Disposal |
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| 918 | The consideration of social issues in environmental impact assessments of Agency flood defence schemes |
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| 919 | Darwell Transfer Scheme. Final Report Part III. Water quality in the Darwell Reservoir |
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| 920 | Water pollution incidents in England and Wales 1991 : report of the National Rivers Authority |
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| 921 | The Impact Of Grazing And Upland Management On Erosion And Runoff: Additional Information |
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| 922 | Extending Rutland yield analysis to 1933 : supporting documentation for the regional water resources strategy |
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| 923 | A report into the impact of small dam construction at Delford bridge, De Lank river |
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| 924 | Investigation into the intermittent failure of Wembury Beach to comply with EC bathing water |
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| 925 | The River Babingley. Volume 1 : executive summary : a report for National Rivers Authority, Anglian Region |
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