| 451 | Environmental protection and pollution control : in the North West |
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| 452 | Buckingham flood defence improvements : presentation of the preferred option |
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| 453 | Impact of breakwaters on the water quality of Sidmouth beach |
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| 454 | Report on the survey of SBM handlers in Devon |
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| 455 | Environmental assessment of selected abandoned minewaters in the North East region |
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| 456 | Improving the environment in Midlands region : Midlands local contribution 2006/11 |
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| 457 | Regulation of dioxin releases from the Runcorn operations of ICI and EVC |
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| 458 | Guidance on the application of environmental risk assessment for waste management licensing |
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| 459 | Partnership in environmental protection : schemes in the Midlands Region 1995 - 1996 |
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| 460 | Investigation of mercury contamination in the Red River catchment, West Cornwall |
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| 461 | An investigation into the incidence of spurting from weeping wall slurry stores |
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| 462 | NRA superannuation report and accounts for the period ended 31 March 1991 |
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| 463 | Assessing the impact of dewatering on water resources |
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| 464 | The use and design of oil separators in surface water drainage systems |
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| 465 | Improving the Environment Agency's contribution to wetland bird populations |
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| 466 | Groundwater-surface Water Interactions in the Hyporheic Zone |
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| 467 | Model Procedures for the Management of Land Contamination |
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| 468 | Applications Of Artificial Intelligence For The Biological Surveillance Of River Quality |
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| 469 | Improving the contribution of social science to Flood Risk Management |
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| 470 | Reappraisal of the River Lee to Wheathampstead Mill |
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| 471 | Business requirement specification : integrated accounting system for the (IAS) |
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| 472 | A report on fish production in the National Rivers Authority |
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| 473 | Moston Brook Summary Report for the Evidence and Measures Project |
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| 474 | Corporate Environmental Reporting in the UK Water Sector - A Concise Review |
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| 475 | Strategy for the use of field instrumentation in water quality monitoring |
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