| 6551 | Guide to groundwater vulnerability mapping in England and Wales |
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| 6552 | Investigation of existing conservation interests and potential furtherance opportunities |
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| 6553 | Locations of licensed abstractions and hydrometric stations |
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| 6554 | NRA regional, area and catchment boundaries |
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| 6555 | Development of marine phytoplankton methodology and quality assurance procedures : second draft |
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| 6556 | Impacts Of Nutrients In Estuaries - Phase 2 : Summary Report |
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| 6557 | Investigation into the impact of Henstridge sewage treatment works on the River Umber, North Devon |
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| 6558 | Sampling Littoral Diatoms in Lakes for Ecological Status Assessments: a Literature Review |
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| 6559 | Sediment input from coastal cliff erosion : interim report (literature review) |
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| 6560 | River catchment plans for flood defence and land drainage : River Stort - evaluation report |
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| 6561 | Code of practice - marine activities : part I : sea-going vessels |
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| 6562 | Code of practice - marine activities : part II : boats - type II-V |
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| 6563 | Herbarium Image: Callitriche obtusangula |
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| 6564 | A brief history of the River Stour navigation : 1705 to the present day |
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| 6565 | Ely Ouse catchment management plan : first annual review Jan 1994 to Jan 1996 |
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| 6566 | Guide to the Medway navigation 1994 |
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| 6567 | Harbour of Rye |
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| 6568 | Herbarium Image: Ludwigia palustris |
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| 6569 | Narrowboats on the Thames : useful hints and tips |
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| 6570 | NRA navigation strategy |
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| 6571 | Locks and weirs on the river Thames : how do they work? |
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| 6572 | Bristol Avon Area fishery survey : Byde Mill Brook |
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| 6573 | Herbarium Image: Potamogeton alpinus |
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| 6574 | Second annual review of the Lower Bristol Avon catchment management plan |
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| 6575 | Second annual review of the Upper Bristol Avon catchment management plan |
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