| 4851 | Red River : catchment action plan |
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| 4852 | Red River, Portreath, Bolingey and Perranporth catchment river water quality classification 1990 |
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| 4853 | Red River catchment river water quality classification 1991 |
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| 4854 | 1997 general quality assessment (GQA) and river ecosystem (RE) non-compliance : Devon area |
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| 4855 | A biological investigation of the affects of discharges from Meldon quarry on the West Okemont River - 8/08/89 and 20/09/89 |
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| 4856 | An investigation into possible causes of poor water quality at Nymphayes Bridge (R30D009) on the Gissage Lake |
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| 4857 | An investigation into the bacterial water quality of the River Umber, N. Devon : December 1996 : DEV/WQ/14/96 |
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| 4858 | An investigation into the elevated BOD levels at Brocken Bridge (R30H001) on the Barnstaple Yeo [DEV/E/20/95] |
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| 4859 | An investigation to determine if Deep Moor Landfill Site is causing an impact downstream in the Peagham Stream |
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| 4860 | An investigation to determine if South Molton STW is the cause of elevated copper and zinc concentrations downstream in the River Mole [DEV/E/18/95] |
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| 4861 | Assessment of the impact of discharges from Meldon Quarry on the water quality of the West Okement River |
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| 4862 | Bideford fine screen outfall post scheme appraisal |
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| 4863 | Water quality report 1992 |
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| 4864 | General Quality Assessment (GQA) Devon Area 1994 |
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| 4865 | Hartland and Clovelly streams : catchment action plan |
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| 4866 | Hartland streams river water quality classification 1990 |
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| 4867 | Hartland streams river water quality classification 1991 |
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| 4868 | North Devon coast and Lyn catchment river water quality classification 1990 |
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| 4869 | Water for the future in Kent : NRA response to the issues and options report |
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| 4870 | North Devon coast and Lyn catchment river water quality classification 1991 |
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| 4871 | Occurrence of cryptosporidium oocysts in river water |
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| 4872 | Review of fishery regulations on the Rivers Taw and Torridge |
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| 4873 | River Lyn fisheries survey 1994 |
|---|
| 4874 | River quality classification 1985-1990 : identification of possible causes of non-compliance with river quality objectives |
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| 4875 | River Taw : catchment action plan |
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