| 51 | Quality audit of biological samples for the 1991 river quality survey |
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| 52 | Artificial recharge to groundwater in the Otter valley |
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| 53 | First annual review of the River Exe catchment management plan |
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| 54 | Environmental planning issues in the North Wessex area |
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| 55 | Impact of breakwaters on the water quality of Sidmouth beach |
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| 56 | Impact assessment of acidic and metalliferous pollution in the Fowley Stream |
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| 57 | Second annual review of the River Torridge catchment management plan |
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| 58 | Second annual review of the Sid/Otter catchment management plan 1999 |
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| 59 | Review of fishery regulations on the Rivers Taw and Torridge |
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| 60 | First annual review of the River Taw catchment management plan (1996) |
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| 61 | An investigation to determine the water quality of Churchstanton Stream |
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| 62 | Non-compliance of the Bidwell Brook with river quality objectives |
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| 63 | The Seaton, Looe and Fowey catchment management plan : action plan |
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| 64 | Impact of reservoir construction construction on the Bruckland Stream |
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| 65 | Investigation into the cause of high phenols in Budleigh Brook (1998) |
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| 66 | An investigation into the incidence of spurting from weeping wall slurry stores |
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| 67 | Non-compliance with water quality objectives on the Croyde stream (upper catchment) |
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| 68 | Public water supplies in the NRA - Wessex Region : initial report 1990 |
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| 69 | Wimbleball pumped storage scheme : review of environmental statement (appendix B3) : implications for water quality in Wimbleball Reservoir, the River Exe (non QUASAR) parameters) and the Exe estuary |
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| 70 | An investigation to determine if South Molton STW is the cause of elevated copper and zinc concentrations downstream in the River Mole [DEV/E/18/95] |
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| 71 | Datchet, Wraysbury, Staines and Chertsey flood study : aquatic biology. Part 2 : a survey of the wetland vegetation and aquatric macroinvertebrates of the Abbey River and Chertsey Bourne |
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| 72 | Investigation to determine the cause of the long-term BOD failure at Higher Weaver routine monitoring site (70532960) for 1995 and 1997 |
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| 73 | Investigation into the storm overflow discharge regime of Hill Barton Seawage Treatment Works Okehampton |
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| 74 | An investigation of the Madford River pollution incident of 29 July 1989 : November 1989 |
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| 75 | Two year aesthetic survey of beaches in the South West (1990 and 1991) |
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