| 1 | The rehabilitation of the River Taff |
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| 2 | The effect of the voluntary initiative on water quality |
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| 3 | Abandoned mines and the water environment : report of the National Rivers Authority |
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| 4 | Achieving the quality (Bilingual) : Sicrhau Ansawdd (Bilingual) |
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| 5 | Hydropower developments and the National Rivers Authority |
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| 6 | The quality of rivers, canals and estuaries in England and Wales : report of the 1990 survey |
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| 7 | The environmental impact of the foot and mouth disease outbreak: and interim assessment |
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| 8 | A Status Report on the Direct Oxygenation of the Tywi Estuary - October 1989 |
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| 9 | Riverside litter : results of the 1990 campaign and a strategy for the future |
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| 10 | Report on the national marine analytical quality control scheme 1993/94 : presented to the 18th October 1994 meeting of the Marine Pollution Monitoring Management Group |
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| 11 | Investigations into the status of fisheries, biological and water quality in the River Pelenna catchment, prior to the treatment of discharges from abandoned coal mines : PL/EAW/95/3 |
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| 12 | Biological Assessment Methods: Controlling the Quality of Biological Data. Package 1 The variability of data used for assessing the biological condition of rivers |
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| 13 | An audit of performance in the AQC inspection of standard biological macro-invertebrate samples in 2002 : The Environment Agency (C00158/31) |
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| 14 | Guidance notes for local planning authorities on the methods of protecting the water environment through development plans |
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| 15 | The quality of rivers in England and Wales (1990 to 1995) |
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| 16 | The NRA in business : annual review and summary accounts 1993-94 |
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| 17 | Snapshots of the environment : a new environmental approach |
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| 18 | River quality in England and Wales : a report of the 1990 survey |
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| 19 | Report on monitoring of environmental quality in the Severn Estuary |
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| 20 | The 1990 river and estuary classification survey of England and Wales |
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| 21 | Policy and practice for the protection of groundwater |
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| 22 | Estuarial migration of Atlantic salmon in the river Dee (North Wales) |
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| 23 | Water quality 2000 : a strategy for the water quality function |
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| 24 | Proposals for statutory water quality objectives : report of the National Rivers Authority |
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| 25 | An audit of performance in the primary analysis of standard biological macro-invertebrate samples in 2002 : The Environment Agency (CEH Report Ref: C00158/31) |
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