| 21. | Responsibility for watercourses other than the main rivers resides with Internal Drainage Boards ( IDBs ).
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| 22. | These four internal drainage boards reduce the flood risk to the surrounding properties, land and environment.
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| 23. | A public enquiry resulted in the exclusion of the reserve from the Internal Drainage Board scheme.
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| 24. | ADA has assisted internal drainage boards by developing a national flood risk management assets database system.
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| 25. | A review of internal drainage boards ( IDBs ) was announced in June 2005 by Defra.
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| 26. | St . Catherine's is also the former home of the Upper Witham Internal Drainage Board offices.
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| 27. | Dyke and Dyke Fen fall within the drainage area of the Black Sluice Internal Drainage Board.
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| 28. | The fundamental role of an internal drainage board is to manage the water level within its district.
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| 29. | Consequently, all external drainage boards were within a river board area, and they became internal drainage boards.
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| 30. | The whole civil parish falls within the drainage area of the Welland and Deepings Internal Drainage Board.
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