| 5551 | Wise use of resources |
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| 5552 | Wiser, sustainable use of natural resources : a framework for change : July 2001 |
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| 5553 | National Rivers Authority paper specification study : report summay |
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| 5554 | Bank erosion on navigable waterways Draft R and D Note (336/2/T) |
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| 5555 | Data Transmission Requirements For Self Monitoring |
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| 5556 | Environmental assessment by external developers and organisations (Phase II) (351/7/T) |
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| 5557 | Environmental assessment by external developers and organisations (Phase II) : recommendations (Note 351/8/T) |
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| 5558 | Environmental Impact Of Run-Of-River Hydropower Schemes In Upland Rivers |
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| 5559 | Impact assessment of Helston Sewage Treatment Works on water quality of the River Cober Loe Pool |
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| 5560 | Use of Pesticides at two Watercress Farms in Hampshire : A report into the use of |
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| 5561 | Policy and practice for the protection of groundwater - NRA leaflet |
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| 5562 | Analysis of 1995 Biological Survey Data Phase 2: Post Survey Appraisal: Technical Summary |
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| 5563 | Analysis of 1995 Survey Data: Phase 2. Post-survey Appraisal. Unit I: Taxon Distribution Studies |
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| 5564 | Assessment of Sampling Methods for Macroinvertebrates (RIVPACS) in Deep Watercourses |
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| 5565 | Assessment of the performance of the BMWP scoring system against biological targets and the determination of significant change |
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| 5566 | Lake Benthic Macroinvertebrates 2: Quantifying Uncertainty in Sampling Methodology |
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| 5567 | A study of benthic macroinvertebrate communities of fifteen Norfolk Broads during summer 1990 |
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| 5568 | An assessment of the impact of Berkhamsted and Maple Lodge STWs on the Grand Union canal based on macroinvertebrate surveys |
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| 5569 | Water resources development strategy : hydrological modelling. Supplementary report no. 5 |
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| 5570 | An audit of performance in the analysis of biological samples in 1998. Environment Agency : AQC audit |
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| 5571 | An audit of performance in the analysis of biological samples in 1998. Environment Agency : primary audit |
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| 5572 | An audit of performance in the analysis of biological samples in 1999. Environment Agency : AQC audit |
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| 5573 | Preliminary assessment of the ability of Restormel fish counter to enumerate the passage of migratory salmonids on the River Fowey : Cornwall Area Fisheries Science Team |
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| 5574 | River Management Guidelines (Operational Activities) Phase 1 - Scoping Study |
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| 5575 | The regulation of fish farming by the National Rivers Authority |
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