| 976 | Microbiological examination of water contact sports sites in the River Thames catchment 1989 |
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| 977 | Assessing the impact of sewage effluent disposal on groundwater (phase 2): final report |
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| 978 | Where to fish on the River Wye and its tributaries : a guide to day ticket facilities |
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| 979 | Bathing water quality in England and Wales in 1993 : report of the National Rivers Authority |
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| 980 | Guardians of the water environment : NRA Welsh Region (bilingual) : Diogelwyr amgyllchedd dwr : rhanbarth Cymru |
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| 981 | Water pollution incidents in England and Wales - 1993 : report of the National Rivers Authority |
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| 982 | The Implications of Future Shoreline Management on Protected Habitats in England and Wales |
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| 983 | Discharge monitoring in the Kennet catchment. Part 1 : ecological effects of sewage and trade effluents |
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| 984 | Biological characteristics and exploitation of sea trout in the River Tywi during 1989 |
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| 985 | The Wandle, Beverley Brook, Hogsmill catchment management plan : consultation report summary : November 1994 |
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| 986 | River Glen : river channel assessment : annex E : instream habitat assessment of the River Glen, Lincolnshire |
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| 987 | The distribution of PCDDS and PCDFS in surface freshwater systems 2nd Interim Progress Report - February 1993 |
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| 988 | East Devon public water supply strategy : preliminary assessment of the yield of Clatworthy reservoir |
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| 989 | River corridor strategic overview feasibility study : a report to the National Rivers Authority |
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| 990 | R and D Strategy to Support Implementation of the Water Framework Directive - Preliminary Scoping Report |
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| 991 | Biological report of the 1991 coastal and estuarine survey from Crosby to Glasson |
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| 992 | Land drainage consent report : investigation of the conservation input into land drainage consents |
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| 993 | Electron Microscope Image: Filament of Oscillatoria being ingested by the ciliate Nassula tumida |
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| 994 | The government's policy for a public regulatory body in a privatised water industry |
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| 995 | The evaluation of a LTH BOM 1 hand-held dissolved oxygen meter (220/25/T) |
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| 996 | Less sensitive areas and candidate high natural dispersion areas in the North West region |
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| 997 | Water pollution incidents in England and Wales - 1990 : report of the National Rivers Authority |
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| 998 | Interpretation Of Optimisation In The Context Of A Disposal Facility For Long-Lived Radioactive Waste |
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| 999 | Two year aesthetic survey of beaches in the South West (1990 and 1991) |
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| 1000 | The Impact of Pesticides on River Ecology: Phase 2: A study of headwater streams |
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