| 526 | Effects of suspended solids on salmon (Salmo salar, L.) in the Parrett stuary, Somerset, Draft |
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| 527 | Two year aesthetic survey of beaches in the South West (1990 and 1991) |
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| 528 | Water pollution incidents in England and Wales - 1993 : report of the National Rivers Authority |
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| 529 | Water pollution incidents in England and Wales - 1992 : report of the National Rivers Authority |
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| 530 | Guidance on the Development of Typology and Classification Systems for Transitional and Coastal Waters |
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| 531 | Technical basis for the predicted impacts of relocating Redgrave abstraction to Borehole B |
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| 532 | River Wissey investigations : linking hydrology and ecology : summary of a recommendations for the River Wissey (OI/526) |
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| 533 | Investigation of tecnazene contamination in the Chyandour Brook west Cornwall during spring 1990 |
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| 534 | Environmental impact assessment in relation to water resources authorisations : guidance on the requirements and procedures |
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| 535 | Groundwater management in the North West: efficiency review and business plan: certificate in management |
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| 536 | Regional river quality monitoring and surveillance : results of the 1990/1991 biological survey : draft report |
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| 537 | R and D Strategy to Support Implementation of the Water Framework Directive - Preliminary Scoping Report |
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| 538 | Review of Lake Benthic Macro-invertebrate Sampling Methods and Strategy for the Water Framework Directive |
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| 539 | The available resource methodology : a framework for assessing water resources and abstraction availability : final report |
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| 540 | The Environment Agency water efficiency awards 2003 : inspirational case studies demonstrating good practice across all sectors |
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| 541 | The impact of climate change on severe droughts: River-flow reconstructions and implied groundwater levels |
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| 542 | Investigation into the frequency of storm overflow operation at Bradworthy sewage treatment works (1996) |
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| 543 | Environment Agency Kent area : the Seabrook stream : BSc (Hons) Environmental biology placement report |
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| 544 | Future water resources in the Thames Region : a strategy for sustainable management. June 1994 |
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| 545 | Devon area internal report - further investigations into pipe discharges in the Lower Teign estuary |
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| 546 | The Warwickshire Avon catchment management plan : consultation report summary (NRA Severn-Trent 44) |
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| 547 | NRA programme for the monitoring of water quality Parts 1 to 3 - November 1994 |
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| 548 | Policy and practice for the protection of groundwater : North West region : 2nd edition, 1995 |
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| 549 | A report on water quality issues within the Midford Brook catchment - June 1996 |
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| 550 | The Influence of Variations in Flow on General Quality Assessment of Rivers - Summary Document |
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