| 76 | Second Coniston OS map related to the Seismic Survey 1983 |
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| 77 | Coniston OS map related to the Seismic Survey 1983 |
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| 78 | The quality of rivers in England and Wales (1990 to 1995) |
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| 79 | River water quality in the Midlands 1994/95 : water quality summary data |
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| 80 | Pesticides in the aquatic environment 1997 : executive summary |
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| 81 | A guide to sustainable urban drainage : protecting the quality of our environment |
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| 82 | Policy and practice for the protection of groundwater |
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| 83 | The Wandle, Beverley Brook, Hogsmill catchment management plan : action plan : July 1995 |
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| 84 | The National Groundwater and Contaminated Land Centre (NGWCLC) |
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| 85 | Temporal variability in chlorophyll-a : concentrations in the coastal environment : final report |
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| 86 | Snapshots of the environment : a new environmental approach |
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| 87 | Proposals for statutory water quality objectives : report of the National Rivers Authority |
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| 88 | Water resources development strategy : the Resplan Model. Supplementary report no. 7 |
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| 89 | Report on monitoring of environmental quality in the Severn Estuary |
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| 90 | The NRA in business : annual review and summary accounts 1993-94 |
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| 91 | River quality in England and Wales : a report of the 1990 survey |
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| 92 | Water quality 2000 : a strategy for the water quality function |
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| 93 | Improving the environment in Midlands region : Midlands local contribution 2006/11 |
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| 94 | The River Dee catchment management plan : consultation report : June 1994 |
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| 95 | Policy and practice for the protection of groundwater : draft for consultation |
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| 96 | Charging for discharges scheme : guidance to the agricultural industry |
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| 97 | Landfill and the water environment : NRA position statement |
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| 98 | The Wandle, Beverley Brook, Hogsmill catchment management plan : consultation report : November 1994 |
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| 99 | Acidification of freshwaters: the threat and its mitigation |
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| 100 | Snapshots of the environment : integrated river basin management |
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