| 51 | Local Environment Agency plan Derwent action plan |
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| 52 | Calder catchment flood management plan : consultation summary document, April 2007 |
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| 53 | Humber estuary catchment management plan : review 1997 |
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| 54 | River Ribble juvenile fish stock assessment 1998, with particular reference to salmonids |
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| 55 | Angling guide 1997/98 : North East Region |
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| 56 | Humber estuary : state of the environment 1998 |
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| 57 | Electric fishing survey (drought 1996 project) : final report |
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| 58 | Hull and East Riding : consultation report august 1997 |
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| 59 | Environmental assessment of selected abandoned minewaters in the North East region |
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| 60 | Humber estuary : environment quality report 1995 |
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| 61 | Humber estuary : Quality Report 1994 |
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| 62 | River Calder : fact file |
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| 63 | Humber estuary catchment management plan : report summary : July 1994 |
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| 64 | CATCH Autumn 2003 |
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| 65 | Benefit Assessment of Water Quality Improvements |
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| 66 | 'Sea Vigil' water quality monitoring : the Humber estuary 1992-1993 |
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| 67 | Domesday to the dawn of the new millennium : 900 years of the Don Fishery |
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| 68 | Report into an air pollution episode : sulphur dioxide, September 2nd 1998, Midlands and South Yorkshire |
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| 69 | River Aire : factfile |
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| 70 | Fisheries, Conservation and Recreation Department : report on fisheries 1991 |
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| 71 | Catchment drainage studies and flood plain identification : Tipalt Burn and Painsdale Burn : section 105 - C30/92 surveys |
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| 72 | Water resources for the future : a strategy for North East Region |
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| 73 | Reach one River Tyne (right bank) : section 105 - C30/92 surveys |
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| 74 | Aire consultation draft LEAP : June 1998 |
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| 75 | Second interim report on the environmental impacts of the drought on Yorkshire's rivers April 1995 to April 1996 |
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