| 51 | An investigation to determine if Great Torrington STW is the cause of elevated copper and zinc concentrations in the River Torridge |
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| 52 | Enhancement of spring salmon- Proceedings of a one-day conference held in the Rooms of the Linnean Society of London |
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| 53 | The quality of rivers and estuaries in Northumbria region 1990 |
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| 54 | Wyre estuary shoreline management plan : the Environment Agency's contribution to sustainable development |
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| 55 | Groundwater flooding in the Thames region : winter 2000/01 |
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| 56 | Environmental protection and pollution control : in the North West |
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| 57 | The Hartland Streams catchment management plan : action plan |
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| 58 | Environmental screening for the Merseyside objective 1 programme : environmental screening guidelines |
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| 59 | Second annual review of the Seaton, Looe and Fowey catchment management plan |
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| 60 | Second annual review of the River Taw catchment management plan |
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| 61 | A survey of trace metals in biota of the Mersey estuary 1993 |
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| 62 | The Yarrow catchment : recommendations for statutory water quality objectives |
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| 63 | The Mersey Estuary 1992 surveys : summary of results |
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| 64 | Second annual review of the Taw / Torridge Estuary catchment management plan |
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| 65 | A report on the River Chew at Chewton Mendip, 6th August 1992 |
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| 66 | The River Avon and its tributaries near Malmesbury : river management studies |
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| 67 | First annual review of the Taw/Torridge estuary catchment management plan (1996) |
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| 68 | The Ribble Estuary 1992 surveys : summary of results |
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| 69 | Review of water resources in the Fylde Aquifer and Wyre catchment |
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| 70 | Eel and elver studies in the Severn : interim report (256/6/ST) |
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| 71 | An investigation of sewage on the beach at Porthcothan |
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| 72 | The Don, Rother and Dearne catchment (river factfiles) |
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| 73 | Air dispersion climate from the Castle Cement works at Ribblesdale |
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| 74 | Second annual review of the River Torridge catchment management plan |
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| 75 | Water resources for the future : a strategy for North East Region |
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