| 76 | Cyanobacteria (blue-green algae) in the south west region 1989 |
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| 77 | Alternative Methods For The Biological Classification Of Rivers |
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| 78 | Targeted Monitoring Programme for Pharmaceuticals in the Aquatic Environment |
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| 79 | Biological water quality monitoring in the Midlands region |
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| 80 | Investigation into the cause of high phenols in Budleigh Brook (1998) |
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| 81 | Policy and practice for the protection of groundwater : Thames Region appendix |
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| 82 | Non-compliance with water quality objectives on the Croyde stream (upper catchment) |
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| 83 | Development of an Estuarine Classification Scheme for the Water Framework Directive |
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| 84 | The National Centre for Environmental Data and Surveillance : business plan 1999/2000 |
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| 85 | An ecological study of the effects of ferric dosing on the plankton and benthic invertebrates of Grafham Water between May 1990 and November 1991 |
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| 86 | Monitoring of the Priory storm overflow on the River Tone at Taunton : June - November 1991 and water quality investigations unit January 1992 |
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| 87 | Investigation to determine the cause of the long-term BOD failure at Higher Weaver routine monitoring site (70532960) for 1995 and 1997 |
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| 88 | Changes in the phosphorus content of the sediment of Esthwaite Water and water quality in response to a decreasing input of sewage-borne phosphorus |
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| 89 | The Use of Catch Statistics to Monitor Fishery Change - Coarse Fish Study - Synopsis |
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| 90 | Discharge monitoring in the Kennet catchment. Part 2 : ecological effects of fish farm discharges |
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| 91 | Microbiological examination of coastal waters in the North West : summary of results 1998 |
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| 92 | An investigation into the water quality of a treated effluent from Hambleton Dairy, Todber, Dorset |
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| 93 | Analysis of bacteriological contamination and accumulation of metals and organics in the mussel (Mytilus edulis) |
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| 94 | Investigation of tecnazene contamination in the Chyandour Brook west Cornwall during spring 1990 |
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| 95 | Investigation into the intermittent failure of Wembury Beach to comply with EC bathing water |
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| 96 | Monitoring of the River Burn upstream and downstream of Burnham Market sewage treatment works 1999 |
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| 97 | Technical basis for the predicted impacts of relocating Redgrave abstraction to Borehole B |
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| 98 | Water pollution incidents in England and Wales - 1992 : report of the National Rivers Authority |
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| 99 | Development of the Acid Water Indicator Community (AWIC) Macroinvertebrate Family and Species Level |
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| 100 | Interim guidelines on the ranges of enteric organism decay rates (T90s) under different marine conditions |
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