| 51 | Genetics and ecology of spined loach in England: implications for conservation management |
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| 52 | Managing the Humber Estuary : the Environment Agency's approach |
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| 53 | Navigation restoration and environmental appraisal: a guidance note |
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| 54 | River Wissey hydrometric scheme drilling contract : factual report |
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| 55 | East Devon public water supply strategy : Exe freshwater model Wimbleball pump storage scheme scenario modelling |
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| 56 | River Yealm catchment river water quality classification 1990 |
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| 57 | River pollution and how to avoid it |
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| 58 | River Lim catchment river water quality classification 1990 |
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| 59 | Sources and fates of synthetic organics in rivers : interim report |
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| 60 | River catchment data report 1996 |
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| 61 | 1111111 |
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| 62 | Routine biological monitoring of river quality 1990 |
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| 63 | National Rivers Authority Severn Trent Region : information (NRA Severn-Trent 50)
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| 64 | River Nar eutrophication studies : diatoms : draft report |
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| 65 | Fisheries annual report 1992/93 : reporting period April 1st 1992 to March 31st 1993 |
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| 66 | Time of travel for the Greadon Farm pollution incident on the Upper Torridge of 19th August 1997 (1997) |
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| 67 | An investigation into the bacteriological levels in the River Seaton |
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| 68 | River Otter : environmental data review. Volume 1 : summary : River Otter environmental study 1993/94 |
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| 69 | Hydrometric report and catalogue 1996 |
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| 70 | Planning application for the proposed Maidenhead, Windsor and Eton flood alleviation scheme January 1991 |
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| 71 | Protective coating of structures against corrosion |
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| 72 | Flooding survey June 1990 : River Derwent catchment and Derbyshire : section 136(1) water act 1989 |
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| 73 | The restoration of the River Pang |
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| 74 | River Piddle P2 Spring 2008 |
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| 75 | Testing and Further Development of RIVPACS Phase 3. Development of New RIVPACS Methodologies - Stage 1 |
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