6051 | River Ribble catchment management plan : first annual review |
6052 | Ribble action plan 2000-2005 |
6053 | Salmon action plan consultation : River Ribble, September 1999 |
6054 | River Ribble juvenile fish stock assessment 2003, with particular reference to salmonids |
6055 | The Ribble Estuary 1992 surveys : summary of results |
6056 | UK national monitoring plan : regional report for England and Wales : estuarine and intermediate sites (1991 to 1995) |
6057 | Liggard Brook and Main Drain improvement scheme |
6058 | Savick Brook electrofishing survey 2001 |
6059 | Wyre LEAP first annual review |
6060 | An assessment of mercury contamination in the Red River catchment : final draft report |
6061 | Red River (R23A003) EC Dangerous Substance Directive failure 1993 : final draft report |
6062 | Mouth of a river lamprey, |
6063 | Red River : catchment action plan |
6064 | Severn Trent Region Plan Summary 1991/1992 |
6065 | Red River, Portreath, Bolingey and Perranporth catchment river water quality classification 1990 |
6066 | Red River catchment river water quality classification 1991 |
6067 | East Sussex Rother catchment management plan : action plan |
6068 | East Sussex Rother catchment management plan : consultation report |
6069 | Wastewater disinfection field trials (231/4/SW) |
6070 | 1997 general quality assessment (GQA) and river ecosystem (RE) non-compliance : Devon area |
6071 | A biological investigation of the affects of discharges from Meldon quarry on the West Okemont River - 8/08/89 and 20/09/89 |
6072 | An investigation into possible causes of poor water quality at Blakewell Bridge (R30A001) on the Bradiford Water |
6073 | An investigation into possible causes of poor water quality at Nymphayes Bridge (R30D009) on the Gissage Lake |
6074 | Water quality monitoring locations 1992 |
6075 | An investigation into the bacterial water quality of the River Umber, N. Devon : December 1996 : DEV/WQ/14/96 |