| 551 | Protection of the Water Environment using Balancing Facilities |
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| 552 | Review of water resources in the Fylde Aquifer and Wyre catchment |
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| 553 | Water related recreation strategy for the southern region : consultation draft 1997 |
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| 554 | The Menai Strait Catchment Managment Plan Action Plan; 1995 (Bilingual) |
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| 555 | The Mersey Estuary 1992 surveys : summary of results |
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| 556 | An investigation to determine the water quality of Churchstanton Stream |
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| 557 | Proposals for statutory water quality objectives : report of the National Rivers Authority |
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| 558 | The River Colne Estuary subtidal biological survey 1992 |
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| 559 | A report on the investigation into water contamination at Hauxton, Cambrigeshire |
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| 560 | The drought of 1988-1992 in Anglia : a review |
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| 561 | Definition of the Extent and Vertical Range of Saltmarsh |
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| 562 | Development of an Estuarine Classification Scheme for the Water Framework Directive |
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| 563 | Summary of monitoring activities on the blackwater estuary |
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| 564 | Factors affecting the recruitment of riverine coarse fish: phase 3 |
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| 565 | Medway Estuary fisheries survey 2000 : (incorporating the report for 1997 to 2000) |
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| 566 | Guide to the use of control charts in water analysis |
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| 567 | A Review of the Brogboroughand Landfill 2000 Test Cells Monitoring Data |
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| 568 | A Review of Methods for Assessing the Hydromorphology of Lakes |
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| 569 | A survey of trace metals in biota of the Mersey estuary 1993 |
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| 570 | Policy and practice for the protection of groundwater : regional appendix Anglian region |
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| 571 | Post drought soil water recharge : a study of the processes of recharge |
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| 572 | The Identification of Oestrogenic Effects in Wild Fish - Phase II |
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| 573 | An assessment of the NRA algal growth inhibition test : 1993/4 |
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| 574 | Results of the NRA Welsh regional marine bioaccumulation programme 1991-1993 : SE/EAU/94/8 |
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| 575 | Results of the NRA Welsh regional marine bioaccumulation programme 1991-1995 : SE/EAU/95/9 |
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