| 6051 | Review of environmental audits prepared by county councils in the North East area |
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| 6052 | Ribble : consultation draft : June 1999 |
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| 6053 | Ribble catchment management consultation report summary : March 1995 |
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| 6054 | River Irwell catchment management plan : action plan : September 1995 |
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| 6055 | River Ribble catchment management plan : first annual review |
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| 6056 | Ribble action plan 2000-2005 |
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| 6057 | Salmon action plan consultation : River Ribble, September 1999 |
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| 6058 | River Ribble juvenile fish stock assessment 2003, with particular reference to salmonids |
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| 6059 | The Ribble Estuary 1992 surveys : summary of results |
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| 6060 | UK national monitoring plan : regional report for England and Wales : estuarine and intermediate sites (1991 to 1995) |
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| 6061 | Liggard Brook and Main Drain improvement scheme |
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| 6062 | Savick Brook electrofishing survey 2001 |
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| 6063 | Wyre LEAP first annual review |
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| 6064 | An assessment of mercury contamination in the Red River catchment : final draft report |
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| 6065 | Red River (R23A003) EC Dangerous Substance Directive failure 1993 : final draft report |
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| 6066 | Mouth of a river lamprey, |
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| 6067 | Red River : catchment action plan |
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| 6068 | Severn Trent Region Plan Summary 1991/1992 |
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| 6069 | Red River, Portreath, Bolingey and Perranporth catchment river water quality classification 1990 |
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| 6070 | Red River catchment river water quality classification 1991 |
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| 6071 | East Sussex Rother catchment management plan : action plan |
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| 6072 | East Sussex Rother catchment management plan : consultation report |
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| 6073 | Wastewater disinfection field trials (231/4/SW) |
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| 6074 | 1997 general quality assessment (GQA) and river ecosystem (RE) non-compliance : Devon area |
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| 6075 | 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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