| 76 | A survey of ferruginous minewater impacts in the Welsh coalfields |
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| 77 | Investigation of mercury contamination in the Red River catchment, West Cornwall |
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| 78 | A survey of ferruginous minewater impacts in the Welsh coalfields |
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| 79 | Investigation into the cause of high phenols in Budleigh Brook (1998) |
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| 80 | Proposals for statutory water quality objectives : report of the National Rivers Authority |
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| 81 | Sustainable urban drainage : an introduction : protecting the quality of our environment |
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| 82 | Discharge consent and compliance policy : a blueprint for the future |
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| 83 | The National Groundwater and Contaminated Land Centre (NGWCLC) |
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| 84 | Integrated pollution control and radioactive substances in the Anglian Region |
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| 85 | A guide to sustainable urban drainage : protecting the quality of our environment |
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| 86 | Snapshots of the environment : a new environmental approach |
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| 87 | The Mersey estuary : a report on environmental quality |
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| 88 | Geochemical process modelling : progress report for the period Jan - March 1993 (0295/11/A) |
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| 89 | Policy and practice for the protection of groundwater |
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| 90 | The use of herbicides to control weeds in or near water |
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| 91 | Assessing and controlling the ecotoxicity of complex effluents |
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| 92 | Policy and practice for the protection of groundwater : regional appendix Welsh region |
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| 93 | Pesticides in the aquatic environment 1997 full report |
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| 94 | Policy and practice for the protection of groundwater - NRA leaflet |
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| 95 | The Occurrence of Sheep Dip Pesticides in Environmental Waters June 1997 |
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| 96 | The fuel additive MTBE - a groundwater protection issue? |
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| 97 | Protection of the Water Environment using Balancing Facilities |
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| 98 | Policy and practice for the protection of groundwater : Southern region appendix |
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| 99 | Air dispersion climate from the Castle Cement works at Ribblesdale |
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| 100 | Charging for discharges scheme : guidance to the agricultural industry |
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