| 1 | The rehabilitation of the River Taff |
|---|
| 2 | The effect of the voluntary initiative on water quality |
|---|
| 3 | Abandoned mines and the water environment : report of the National Rivers Authority |
|---|
| 4 | Hydropower developments and the National Rivers Authority |
|---|
| 5 | Achieving the quality (Bilingual) : Sicrhau Ansawdd (Bilingual) |
|---|
| 6 | A Status Report on the Direct Oxygenation of the Tywi Estuary - October 1989 |
|---|
| 7 | The environmental impact of the foot and mouth disease outbreak: and interim assessment |
|---|
| 8 | Riverside litter : results of the 1990 campaign and a strategy for the future |
|---|
| 9 | Project record for the review and statistical analysis of the baseline coastal waters survey |
|---|
| 10 | The quality of rivers, canals and estuaries in England and Wales : report of the 1990 survey |
|---|
| 11 | 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 |
|---|
| 12 | Biological Assessment Methods: Controlling the Quality of Biological Data. Package 1 The variability of data used for assessing the biological condition of rivers |
|---|
| 13 | 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 |
|---|
| 14 | An audit of performance in the AQC inspection of standard biological macro-invertebrate samples in 2002 : The Environment Agency (C00158/31) |
|---|
| 15 | The quality of rivers in England and Wales (1990 to 1995) |
|---|
| 16 | Policy and practice for the protection of groundwater |
|---|
| 17 | Temporal variability in chlorophyll-a : concentrations in the coastal environment : final report |
|---|
| 18 | Snapshots of the environment : a new environmental approach |
|---|
| 19 | Proposals for statutory water quality objectives : report of the National Rivers Authority |
|---|
| 20 | Report on monitoring of environmental quality in the Severn Estuary |
|---|
| 21 | The NRA in business : annual review and summary accounts 1993-94 |
|---|
| 22 | River quality in England and Wales : a report of the 1990 survey |
|---|
| 23 | Water quality 2000 : a strategy for the water quality function |
|---|
| 24 | Estuarial migration of Atlantic salmon in the river Dee (North Wales) |
|---|
| 25 | The 1990 river and estuary classification survey of England and Wales |
|---|
